def display(self):
"""
Callback function, handler for window re-paint
"""
# Set background color (clear background)
glClearColor(
self.background_color[0],
self.background_color[1],
self.background_color[2],
1.0,
)
glClear(GL_COLOR_BUFFER_BIT)
# Display background
for shape in self.background.shapes:
self.draw_geometric2d(shape)
# Display objects
if len(self.data) > 0:
idx = self.time_count % len(self.data)
for shape in self.data[idx].shapes:
self.draw_geometric2d(shape)
self.time_count += 1
glFlush()
def leftDrag(self, event):
"""
Compute the changing rubber band window ending point. Erase the
previous window, draw the new window.
"""
# bugs 1190, 1818 wware 4/05/2006 - sometimes Qt neglects to call leftDown
# before this
if not hasattr(self, "pWxy") or not hasattr(self, "firstDraw"):
return
cWxy = (event.pos().x(), self.glpane.height - event.pos().y())
rbwcolor = self.command.rbwcolor
if not self.firstDraw: #Erase the previous rubberband window
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
self.firstDraw = False
self.pPrev = A(gluUnProject(cWxy[0], cWxy[1], 0.005))
# draw the new rubberband window
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
glFlush()
self.glpane.swapBuffers() # Update display
# Based on a suggestion in bug 2961, I added this second call to
# swapBuffers(). It definitely helps, but the rectangle disappears
# once the zoom cursor stops moving. I suspect this is due to
# a gl_update() elsewhere. I'll ask Bruce about his thoughts on
# this. --Mark 2008-12-22.
self.glpane.swapBuffers()
return
def leftDrag(self, event):
"""
Compute the changing rubber band window ending point. Erase the
previous window, draw the new window.
"""
# bugs 1190, 1818 wware 4/05/2006 - sometimes Qt neglects to call leftDown
# before this
if not hasattr(self, "pWxy") or not hasattr(self, "firstDraw"):
return
cWxy = (event.pos().x(), self.glpane.height - event.pos().y())
rbwcolor = self.command.rbwcolor
if not self.firstDraw: #Erase the previous rubber window
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
self.firstDraw = False
self.pPrev = A(gluUnProject(cWxy[0], cWxy[1], 0.005))
# draw the new rubber band
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
glFlush()
self.glpane.swapBuffers() # Update display
return
def render(self):
""" The render pass for the scene """
self.init_view()
# Enable lighting and color
glEnable(GL_LIGHTING)
glClearColor(0.4, 0.4, 0.4, 0.0)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# Load the modelview matrix from the current state of the trackball
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
loc = self.interaction.translation
glTranslated(-loc[0], -loc[1], -loc[2])
glMultMatrixf(self.interaction.trackball.matrix)
# store the inverse of the current modelview.
currentModelView = numpy.array(glGetFloatv(GL_MODELVIEW_MATRIX))
self.modelView = numpy.transpose(currentModelView)
self.inverseModelView = inv(numpy.transpose(currentModelView))
# render the scene. This will call the render function for each object in the scene
self.scene.render()
# draw the grid
glDisable(GL_LIGHTING)
glCallList(G_OBJ_PLANE)
glPopMatrix()
# flush the buffers so that the scene can be drawn
glFlush()
def draw(self):
t1 = time.time()
glClearColor(0.0, 0.0, 0.0, 0.0)
glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
horizonY = 1 * 2.2 - .6 + .5
GLU.gluLookAt(self.eyeX.x, horizonY, 8.0, self.lookX.x, horizonY, 0.0,
0.0, 1.0, 0.0)
glEnable(GL.GL_TEXTURE_2D)
if 0:
with pushMatrix():
glColor3f(1, 0, 0)
glTranslatef(*self.ball)
glScalef(.2, .2, 1)
imageCard("sample.jpg")
with pushMatrix():
with mode(disable=[GL.GL_LIGHTING]):
for card in self.cards:
card.draw(self.eyeX.x, horizonY, self.cardList)
glFlush()
pygame.display.flip()
def render(self):
#初始化投影矩阵
self.init_view()
#启动光照
glEnable(GL_LIGHTING)
#清空颜色缓存与深度缓存
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
#设置模型视图矩阵，这节课先用单位矩阵就行了。
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
glMultMatrixf(self.interaction.trackball.matrix)
# 存储ModelView矩阵与其逆矩阵之后做坐标系转换用
currentModelView = numpy.array(glGetFloatv(GL_MODELVIEW_MATRIX))
self.modelView = numpy.transpose(currentModelView)
self.inverseModelView = inv(numpy.transpose(currentModelView))
#渲染场景
self.scene.render()
#每次渲染后复位光照状态
glDisable(GL_LIGHTING)
glCallList(G_OBJ_PLANE)
glPopMatrix()
#把数据刷新到显存上
glFlush()
def render(self):
#init shadow matrix
self.init_view()
#open light
glEnable(GL_LIGHTING)
#clear color and depth caches
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
#set model view matrix(danwei matrix is ok)
#set trackball's rotate matrix as Modelview
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
#replace now-matrix with hengdeng matrix
glLoadIdentity()
glMultMatrixf(self.interaction.trackball.matrix)
#save Modelview matrix, later change system with anti-matrix
currentModelView = numpy.array(glGetFloatv(GL_MODELVIEW_MATRIX))
self.modelView = numpy.transpose(currentModelView)
self.inverseModelView = inv(numpy.transpose(currentModelView))
#rend the scene
self.scene.render()
#after each shadow , huifu light state
glDisable(GL_LIGHTING)
glPopMatrix()
glFlush()
def _capture_saved_bg_image(self):
"""
"""
# TODO: investigate better ways to do this, which don't involve the CPU.
# For example, frame buffer objects, or "render to texture":
# - by glCopyTexImage2D,
# http://nehe.gamedev.net/data/lessons/lesson.asp?lesson=36
# (which can do color -- I don't know about depth),
# - or by more platform-specific ways, e.g. pbuffer.
# [bruce 081002]
print "_capture_saved_bg_image", self._print_data()
sys.stdout.flush()
if 1:
from OpenGL.GL import glFlush, glFinish
glFlush(
) # might well be needed, based on other code in NE1; not enough by itself
glFinish() # try this too if needed
w = _trim(self.width)
h = _trim(self.height)
# grab the color image part
image = glReadPixels(0, 0, w, h, _GL_FORMAT_FOR_COLOR,
GL_UNSIGNED_BYTE)
self._cached_bg_color_image = image
# grab the depth part
## image = glReadPixels( 0, 0, w, h, GL_DEPTH_COMPONENT, _GL_TYPE_FOR_DEPTH )
image = glReadPixelsf(0, 0, w, h, GL_DEPTH_COMPONENT) #####
self._cached_bg_depth_image = image
print "grabbed depth at 0,0:", image[0][0] ######
return
def leftDrag(self, event):
"""
Compute the changing rubber band window ending point. Erase the
previous window, draw the new window.
"""
# bugs 1190, 1818 wware 4/05/2006 - sometimes Qt neglects to call leftDown
# before this
if not hasattr(self, "pWxy") or not hasattr(self, "firstDraw"):
return
cWxy = (event.pos().x(), self.glpane.height - event.pos().y())
rbwcolor = self.command.rbwcolor
if not self.firstDraw: #Erase the previous rubberband window
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
self.firstDraw = False
self.pPrev = A(gluUnProject(cWxy[0], cWxy[1], 0.005))
# draw the new rubberband window
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
glFlush()
self.glpane.swapBuffers() # Update display
# Based on a suggestion in bug 2961, I added this second call to
# swapBuffers(). It definitely helps, but the rectangle disappears
# once the zoom cursor stops moving. I suspect this is due to
# a gl_update() elsewhere. I'll ask Bruce about his thoughts on
# this. --Mark 2008-12-22.
self.glpane.swapBuffers()
return
def render(self):
""" The render pass for the scene """
self.init_view()
# Enable lighting and color
glEnable(GL_LIGHTING)
glClearColor(0.4, 0.4, 0.4, 0.0)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# Load the modelview matrix from the current state of the trackball
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
loc = self.interaction.translation
glTranslated(-loc[0], -loc[1], -loc[2])
glMultMatrixf(self.interaction.trackball.matrix)
# store the inverse of the current modelview.
currentModelView = numpy.array(glGetFloatv(GL_MODELVIEW_MATRIX))
self.modelView = numpy.transpose(currentModelView)
self.inverseModelView = inv(numpy.transpose(currentModelView))
# render the scene. This will call the render function for each object in the scene
self.scene.render()
# draw the grid
glDisable(GL_LIGHTING)
glCallList(G_OBJ_PLANE)
glPopMatrix()
# flush the buffers so that the scene can be drawn
glFlush()
def draw(self):
t1 = time.time()
glClearColor(0.0, 0.0, 0.0, 0.0)
glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT)
glLoadIdentity ()
horizonY = 1 * 2.2 - .6 + .5
GLU.gluLookAt(self.eyeX.x, horizonY, 8.0,
self.lookX.x, horizonY, 0.0,
0.0, 1.0, 0.0)
glEnable(GL.GL_TEXTURE_2D)
if 0:
with pushMatrix():
glColor3f(1,0,0)
glTranslatef(*self.ball)
glScalef(.2, .2, 1)
imageCard("sample.jpg")
with pushMatrix():
with mode(disable=[GL.GL_LIGHTING]):
for card in self.cards:
card.draw(self.eyeX.x, horizonY, self.cardList)
glFlush()
pygame.display.flip()
def _capture_saved_bg_image(self):
"""
"""
# TODO: investigate better ways to do this, which don't involve the CPU.
# For example, frame buffer objects, or "render to texture":
# - by glCopyTexImage2D,
# http://nehe.gamedev.net/data/lessons/lesson.asp?lesson=36
# (which can do color -- I don't know about depth),
# - or by more platform-specific ways, e.g. pbuffer.
# [bruce 081002]
print "_capture_saved_bg_image", self._print_data()
sys.stdout.flush()
if 1:
from OpenGL.GL import glFlush, glFinish
glFlush() # might well be needed, based on other code in NE1; not enough by itself
glFinish() # try this too if needed
w = _trim(self.width)
h = _trim(self.height)
# grab the color image part
image = glReadPixels( 0, 0, w, h, _GL_FORMAT_FOR_COLOR, GL_UNSIGNED_BYTE )
self._cached_bg_color_image = image
# grab the depth part
## image = glReadPixels( 0, 0, w, h, GL_DEPTH_COMPONENT, _GL_TYPE_FOR_DEPTH )
image = glReadPixelsf(0, 0, w, h, GL_DEPTH_COMPONENT) #####
self._cached_bg_depth_image = image
print "grabbed depth at 0,0:", image[0][0]######
return
def render_figure(self):
glClear(GL_COLOR_BUFFER_BIT)
for figure in self.list_of_figures_to_draw:
figure.draw_me()
glFlush()
def leftDrag(self, event):
"""
Compute the changing rubber band window ending point. Erase the
previous window, draw the new window.
"""
# bugs 1190, 1818 wware 4/05/2006 - sometimes Qt neglects to call leftDown
# before this
if not hasattr(self, "pWxy") or not hasattr(self, "firstDraw"):
return
cWxy = (event.pos().x(), self.glpane.height - event.pos().y())
rbwcolor = self.command.rbwcolor
if not self.firstDraw: #Erase the previous rubber window
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
self.firstDraw = False
self.pPrev = A(gluUnProject(cWxy[0], cWxy[1], 0.005))
# draw the new rubber band
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
glFlush()
self.glpane.swapBuffers() # Update display
return
def render_scene(self):
"render scene one time"
self.init_gl() # should be a no-op after the first frame is rendered
SDL_GL_MakeCurrent(self.window, self.context)
self.renderer.render_scene()
# Done rendering
# SDL_GL_SwapWindow(self.window)
glFlush()
def render_scene(self): "render scene one time" self.init_gl() # should be a no-op after the first frame is rendered SDL_GL_MakeCurrent ( self.window, self.context ) self.renderer.render_scene() # Done rendering # SDL_GL_SwapWindow(self.window) glFlush()
def on_expose_event(self, widget, _event=None):
with GLContext(widget) as gldrawable:
self.paint_blocks()
if gldrawable.is_double_buffered():
gldrawable.swap_buffers()
else:
glFlush()
return True
def draw(self) -> None:
''' each frame'''
glClearColor(0.0, 0.0, 1.0, 0.0)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
self.renderer.draw(self.scene, self.projection.matrix,
self.view.matrix)
glFlush()
def on_expose_event(self, widget, event):
if not self.get_gl_drawable().gl_begin(self.get_gl_context()): return
vb = context.application.vis_backend
vb.draw(self.allocation.width, self.allocation.height)
if self.get_gl_drawable().is_double_buffered():
self.get_gl_drawable().swap_buffers()
else:
glFlush()
self.get_gl_drawable().gl_end()
def render_scene(self):
"render scene one time"
self.init_gl() # should be a no-op after the first frame is rendered
glfw.make_context_current(self.window)
self.renderer.render_scene()
# Done rendering
# glfw.swap_buffers(self.window) # avoid double buffering to avoid stalling
glFlush() # single buffering
glfw.poll_events()
def gl_show(self):
if self.glconfig.is_double_buffered():
# Show the backbuffer on screen
log("%s.gl_show() swapping buffers now", self)
gldrawable = self.get_gl_drawable()
gldrawable.swap_buffers()
else:
#just ensure stuff gets painted:
log("%s.gl_show() flushing", self)
glFlush()
def gl_show(self):
if self.glconfig.is_double_buffered():
# Show the backbuffer on screen
log("%s.gl_show() swapping buffers now", self)
gldrawable = self.get_gl_drawable()
gldrawable.swap_buffers()
else:
#just ensure stuff gets painted:
log("%s.gl_show() flushing", self)
glFlush()
def gl_show(self):
start = time.time()
if self.glconfig.is_double_buffered():
# Show the backbuffer on screen
log("%s.gl_show() swapping buffers now", self)
gldrawable = self.get_gl_drawable()
gldrawable.swap_buffers()
else:
#just ensure stuff gets painted:
log("%s.gl_show() flushing", self)
glFlush()
end = time.time()
fpslog("gl_show took %ims", (end-start)*1000)
def display(self):
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glPushMatrix()
glTranslatef(0.0, 0.0, -1.0)
glRotatef(self.rot_x, 1.0, 0.0, 0.0)
glRotatef(self.rot_z, 0.0, 1.0, 0.0)
self.render()
glPopMatrix()
glFlush()
glutSwapBuffers()
def gl_show(self):
start = time.time()
if self.glconfig.is_double_buffered():
# Show the backbuffer on screen
log("%s.gl_show() swapping buffers now", self)
gldrawable = self.get_gl_drawable()
gldrawable.swap_buffers()
else:
#just ensure stuff gets painted:
log("%s.gl_show() flushing", self)
glFlush()
end = time.time()
fpslog("gl_show took %ims", (end-start)*1000)
def present_fbo(self, drawable):
self.gl_marker("Presenting FBO on screen for drawable %s" % drawable)
assert drawable
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._has_alpha:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._has_alpha:
# support alpha channel if present:
glEnable(GL_BLEND)
glBlendEquationSeparate(GL_FUNC_ADD, GL_FUNC_ADD)
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE,
GL_ZERO)
w, h = self.size
glBegin(GL_QUADS)
glTexCoord2i(0, h)
glVertex2i(0, 0)
glTexCoord2i(0, 0)
glVertex2i(0, h)
glTexCoord2i(w, 0)
glVertex2i(w, h)
glTexCoord2i(w, h)
glVertex2i(w, 0)
glEnd()
# Show the backbuffer on screen
if drawable.is_double_buffered():
debug("%s.present_fbo() swapping buffers now", self)
drawable.swap_buffers()
# Clear the new backbuffer to illustrate that its contents are undefined
glClear(GL_COLOR_BUFFER_BIT)
else:
glFlush()
if self._has_alpha:
glDisable(GL_BLEND)
self.gl_frame_terminator()
self.unset_rgb_paint_state()
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
debug("%s.present_fbo() done", self)
def update_texture_yuv(self, img_data, x, y, width, height, rowstrides, pixel_format):
window_width, window_height = self.size
assert self.textures is not None, "no OpenGL textures!"
if self.pixel_format is None or self.pixel_format!=pixel_format:
self.pixel_format = pixel_format
divs = self.get_subsampling_divs(pixel_format)
log("GL creating new YUV textures for pixel format %s using divs=%s", pixel_format, divs)
# Create textures of the same size as the window's
glEnable(GL_TEXTURE_RECTANGLE_ARB)
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1), (GL_TEXTURE2, 2)):
div = divs[index]
glActiveTexture(texture)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[index])
glEnable(GL_TEXTURE_RECTANGLE_ARB)
mag_filter = GL_NEAREST
if div>1:
mag_filter = GL_LINEAR
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, mag_filter)
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE, window_width/div, window_height/div, 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, 0)
log("Assigning fragment program")
glEnable(GL_FRAGMENT_PROGRAM_ARB)
if not self.yuv_shader:
self.yuv_shader = [ 1 ]
glGenProgramsARB(1, self.yuv_shader)
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, self.yuv_shader[0])
prog = GL_COLORSPACE_CONVERSIONS
glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, len(prog), prog)
err = glGetString(GL_PROGRAM_ERROR_STRING_ARB)
if err:
#FIXME: maybe we should do something else here?
log.error(err)
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, self.yuv_shader[0])
# Clamp width and height to the actual texture size
if x + width > window_width:
width = window_width - x
if y + height > window_height:
height = window_height - y
divs = self.get_subsampling_divs(pixel_format)
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1), (GL_TEXTURE2, 2)):
div = divs[index]
glActiveTexture(texture)
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[index])
glPixelStorei(GL_UNPACK_ROW_LENGTH, rowstrides[index])
glTexSubImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, x, y, width/div, height/div, GL_LUMINANCE, GL_UNSIGNED_BYTE, img_data[index])
glFlush()
def _ns_flush(self):
glFlush()
width, height = self.size
pixels = glReadPixels(0, 0, int(width), int(height), GL_RGBA, GL_UNSIGNED_BYTE)
bytes_per_row = int(width) * 4
ns_new_bitmap = NSBitmapImageRep.alloc().\
initWithBitmapDataPlanes_pixelsWide_pixelsHigh_bitsPerSample_samplesPerPixel_hasAlpha_isPlanar_colorSpaceName_bytesPerRow_bitsPerPixel_(
(pixels, "", "", "", ""), int(width), int(height), 8, 4, True, False, AppKit.NSDeviceRGBColorSpace, bytes_per_row, 0)
ns_image = NSImage.alloc().initWithSize_(NSSize(width, height))
ns_image.addRepresentation_(ns_new_bitmap)
ns_image.lockFocus()
ns_image.unlockFocus()
self._ns_image = ns_image
self._ns_bitmap_image_rep = ns_new_bitmap
def present_fbo(self, drawable):
self.gl_marker("Presenting FBO on screen for drawable %s" % drawable)
assert drawable
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._has_alpha:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._has_alpha:
# support alpha channel if present:
glEnable(GL_BLEND)
glBlendEquationSeparate(GL_FUNC_ADD, GL_FUNC_ADD)
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ZERO)
w, h = self.size
glBegin(GL_QUADS)
glTexCoord2i(0, h)
glVertex2i(0, 0)
glTexCoord2i(0, 0)
glVertex2i(0, h)
glTexCoord2i(w, 0)
glVertex2i(w, h)
glTexCoord2i(w, h)
glVertex2i(w, 0)
glEnd()
# Show the backbuffer on screen
if drawable.is_double_buffered():
debug("%s.present_fbo() swapping buffers now", self)
drawable.swap_buffers()
# Clear the new backbuffer to illustrate that its contents are undefined
glClear(GL_COLOR_BUFFER_BIT)
else:
glFlush()
if self._has_alpha:
glDisable(GL_BLEND)
self.gl_frame_terminator()
self.unset_rgb_paint_state()
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
debug("%s.present_fbo() done", self)
def on_draw(self, want_cameras=False):
# sys.stderr.write('fps: %.2e\n' % (1. / (time.time() - self.tm_for_fps)))
self.tm_for_fps = time.time()
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
cameras = []
for mvl in self.mesh_viewers:
cameras.append([])
for mv in mvl:
cameras[-1].append(mv.on_draw(self.transform, want_cameras))
glFlush() # Flush The GL Rendering Pipeline
glutSwapBuffers()
self.need_redraw = False
if want_cameras:
return cameras
def render_image(self, rx, ry, rw, rh):
log("render_image %sx%s at %sx%s pixel_format=%s", rw, rh, rx, ry, self.pixel_format)
if self.pixel_format not in (YUV420P, YUV422P, YUV444P):
#not ready to render yet
return
divs = self.get_subsampling_divs(self.pixel_format)
glEnable(GL_FRAGMENT_PROGRAM_ARB)
glBegin(GL_QUADS)
for x,y in ((rx, ry), (rx, ry+rh), (rx+rw, ry+rh), (rx+rw, ry)):
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1), (GL_TEXTURE2, 2)):
div = divs[index]
glMultiTexCoord2i(texture, x/div, y/div)
glVertex2i(x, y)
glEnd()
glFlush()
def _ns_flush(self):
glFlush()
width, height = self.size
pixels = glReadPixels(0, 0, int(width), int(height), GL_RGBA,
GL_UNSIGNED_BYTE)
bytes_per_row = int(width) * 4
ns_new_bitmap = NSBitmapImageRep.alloc().\
initWithBitmapDataPlanes_pixelsWide_pixelsHigh_bitsPerSample_samplesPerPixel_hasAlpha_isPlanar_colorSpaceName_bytesPerRow_bitsPerPixel_(
(pixels, "", "", "", ""), int(width), int(height), 8, 4, True, False, AppKit.NSDeviceRGBColorSpace, bytes_per_row, 0)
ns_image = NSImage.alloc().initWithSize_(NSSize(width, height))
ns_image.addRepresentation_(ns_new_bitmap)
ns_image.lockFocus()
ns_image.unlockFocus()
self._ns_image = ns_image
self._ns_bitmap_image_rep = ns_new_bitmap
def plot():
glClear(GL_COLOR_BUFFER_BIT)
glPointSize(3.0)
glColor3f(1.0, 0.0, 0.0)
glBegin(GL_POINTS)
x_lst, y_lst = circle(0, 0, 1, 100)
for x, y in zip(x_lst, y_lst):
glVertex2f(x, y)
glEnd()
glFlush()
def on_render(self, area, *args):
area.attach_buffers()
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glUseProgram(self.shaderContent.shader_prog)
self.timer()
glUniform1f(self.time_l, self.time)
glBindVertexArray(self.vertex_array_object)
glDrawArrays(GL_TRIANGLES, 0, 6)
glBindVertexArray(0)
glUseProgram(0)
glFlush()
self.shaderContent.queue_render()
return True
def gl_show(self, rect_count):
start = time.time()
if self.glconfig.is_double_buffered():
# Show the backbuffer on screen
log("%s.gl_show() swapping buffers now", self)
gldrawable = self.get_gl_drawable()
gldrawable.swap_buffers()
else:
#just ensure stuff gets painted:
log("%s.gl_show() flushing", self)
glFlush()
end = time.time()
flush_elapsed = end-self.last_flush
self.last_flush = end
fpslog("gl_show after %3ims took %2ims, %2i updates", flush_elapsed*1000, (end-start)*1000, rect_count)
def gl_show(self, rect_count):
start = time.time()
if self.glconfig.is_double_buffered():
# Show the backbuffer on screen
log("%s.gl_show() swapping buffers now", self)
gldrawable = self.get_gl_drawable()
gldrawable.swap_buffers()
else:
#just ensure stuff gets painted:
log("%s.gl_show() flushing", self)
glFlush()
end = time.time()
flush_elapsed = end-self.last_flush
self.last_flush = end
fpslog("gl_show after %3ims took %2ims, %2i updates", flush_elapsed*1000, (end-start)*1000, rect_count)
def _with_context(self, proc, flush): drawable = self._gl_drawable if drawable: if not drawable.gl_begin(self._gl_context): raise ValueError( "Unable to make %s the current OpenGL context (gl_begin failed)" % self) try: self._with_share_group(proc) if flush: if drawable.is_double_buffered(): #print "GLContext.with_context: swapping buffers" ### drawable.swap_buffers() else: #print "GLContext.with_context: flushing" ### glFlush() finally: drawable.gl_end()
def _with_context(self, proc, flush):
drawable = self._gl_drawable
if drawable:
if not drawable.gl_begin(self._gl_context):
raise ValueError(
"Unable to make %s the current OpenGL context (gl_begin failed)" % self)
try:
self._with_share_group(proc)
if flush:
if drawable.is_double_buffered():
#print "GLContext.with_context: swapping buffers" ###
drawable.swap_buffers()
else:
#print "GLContext.with_context: flushing" ###
glFlush()
finally:
drawable.gl_end()
def paintGL(self):
"""
Drawing routing
"""
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
#Draw spiral in 'immediate mode'
#WARNING: You should not be doing the spiral calculation inside the loop
#even if you are using glBegin/glEnd, sin/cos are fairly expensive functions
#For now left here to make code simpler
radius = 1.0
x = radius * math.sin(0)
y = radius * math.cos(0)
glColor(0.0, 1.0, 0.0)
glBegin(GL_LINE_STRIP)
for deg in range(1000):
glVertex(x, y, 0.0)
rad = math.radians(deg)
radius -= 0.001
x = radius * math.sin(rad)
y = radius * math.cos(rad)
glEnd()
glEnableClientState(GL_VERTEX_ARRAY)
#TODO: Use list comprehension
spiral_array = []
#Second spiral using "array immediate mode" (i.e vertex arrays)
radius = 0.8
x = radius * math.sin(0)
y = radius * math.cos(0)
glColor(1.0, 0.0, 0.0)
for deg in range(820):
spiral_array.append([x, y])
rad = math.radians(deg)
radius -= 0.001
x = radius * math.sin(rad)
y = radius * math.cos(rad)
glVertexPointerf(spiral_array)
glDrawArrays(GL_LINE_STRIP, 0, len(spiral_array))
glFlush()
def render(self):
# 每次循环调用的渲染函数
self.init_view() # 初始化投影矩阵
glEnable(GL_LIGHTING) # 启动光照
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) # 清空颜色缓存和深度缓存
# 设置模型视图矩阵，此处使用单位矩阵
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
# 渲染场景
self.scene.render()
# 每次渲染后恢复光照状态
glDisable(GL_LIGHTING)
glPopMatrix()
# 把数据刷新到显存上
glFlush()
def render_image(self, rx, ry, rw, rh):
log("render_image %sx%s at %sx%s pixel_format=%s", rw, rh, rx, ry,
self.pixel_format)
if self.pixel_format not in (YUV420P, YUV422P, YUV444P):
#not ready to render yet
return
divs = self.get_subsampling_divs(self.pixel_format)
glEnable(GL_FRAGMENT_PROGRAM_ARB)
glBegin(GL_QUADS)
for x, y in ((rx, ry), (rx, ry + rh), (rx + rw, ry + rh), (rx + rw,
ry)):
for texture, index in ((GL_TEXTURE0, 0), (GL_TEXTURE1, 1),
(GL_TEXTURE2, 2)):
div = divs[index]
glMultiTexCoord2i(texture, x / div, y / div)
glVertex2i(x, y)
glEnd()
glFlush()
def execute(self):
if self.PreExecute:
self.PreExecute()
if self.gl_objects:
cl.enqueue_acquire_gl_objects(self.queue, self.gl_objects)
#self.program.part2(self.queue, self.pos.shape, None,
# *(self.kernelargs))
if self.gl_objects:
cl.enqueue_release_gl_objects(self.queue, self.gl_objects)
self.queue.finish()
glFlush()
if self.PostExecute:
self.PostExecute()
def execute(self):
if self.PreExecute:
self.PreExecute()
if self.gl_objects:
cl.enqueue_acquire_gl_objects(self.queue, self.gl_objects)
#self.program.part2(self.queue, self.pos.shape, None,
# *(self.kernelargs))
if self.gl_objects:
cl.enqueue_release_gl_objects(self.queue, self.gl_objects)
self.queue.finish()
glFlush()
if self.PostExecute:
self.PostExecute()
def blit_buffer(self,
buffer,
size=None,
mode='RGB',
format=None,
pos=(0, 0),
buffertype=GL_UNSIGNED_BYTE):
'''Blit a buffer into a texture.
:Parameters:
`buffer` : str
Image data
`size` : tuple, default to texture size
Size of the image (width, height)
`mode` : str, default to 'RGB'
Image mode, can be one of RGB, RGBA, BGR, BGRA
`format` : glconst, default to None
if format is passed, it will be used instead of mode
`pos` : tuple, default to (0, 0)
Position to blit in the texture
`buffertype` : glglconst, default to GL_UNSIGNED_BYTE
Type of the data buffer
'''
if size is None:
size = self.size
if format is None:
format = self.mode_to_gl_format(mode)
target = self.target
glBindTexture(target, self.id)
glEnable(target)
# activate 1 alignement, of window failed on updating weird size
glPixelStorei(GL_UNPACK_ALIGNMENT, 1)
# need conversion ?
pdata, format = self._convert_buffer(buffer, format)
# transfer the new part of texture
glTexSubImage2D(target, 0, pos[0], pos[1], size[0], size[1], format,
buffertype, pdata)
glFlush()
glDisable(target)
def __draw(self, widget, event):
x = self.__distance * sin(self.__angle)
z = self.__distance * cos(self.__angle)
gldrawable = widget.get_gl_drawable()
glcontext = widget.get_gl_context()
# OpenGL begin.
if not gldrawable.gl_begin(glcontext):
return
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity ()
gluLookAt(x, 0.0, z, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0)
#==========================
glPushMatrix()
glLineWidth(3)
glRotatef(self.__arm_angles[0], 1., 0., 0.)
glRotatef(self.__arm_angles[1], 0., 1., 0.)
glRotatef(self.__arm_angles[2], 0., 0., 1.)
glTranslatef(self.__upper_arm, 0., 0.)
#==========================
glPushMatrix()
glColor3f(30./255., 126./255., 30./255.)
glScalef(self.__upper_arm, 0.4, 1.0)
self.__draw_cube() # shoulder
glPopMatrix()
#==========================
glTranslatef(self.__upper_arm, 0., 0.)
glRotatef(self.__arm_angles[3] , 0., 0., 1.)
glTranslatef(self.__forearm, 0., 0.)
glPushMatrix()
#==========================
glScalef(self.__forearm, 0.3, 0.75)
glColor3f(126./255., 30./255., 30./255.)
self.__draw_cube() # elbow
glPopMatrix()
glPopMatrix()
#==========================
if gldrawable.is_double_buffered():
gldrawable.swap_buffers()
else:
glFlush()
gldrawable.gl_end()
# OpenGL end
return
def render(self):
""" The render pass for the scene """
self.init_view()
glEnable(GL_LIGHTING)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
# Load the modelview matrix from the current state of the trackball
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
tar = self.interaction.LookAttarget;
self.Camera.target = (tar[0],tar[1],tar[2])
if self.Camera.CameraMode == 'Trackball':
loc = self.Camera.position;
#Camera.position
glTranslated(-loc[0], -loc[1], -loc[2])
glMultMatrixf(self.interaction.trackball.matrix)
elif self.Camera.CameraMode == 'LookAt':
# embed()
self.Camera.point()
elif self.Camera.CameraMode == 'LookAtFollow':
self.Camera.follow()
self.Camera.point()
else:
glMultMatrixf(self.interaction.trackball.matrix) # by default revert to trackball if mode is set incorrectly
# store the inverse of the current modelview.
currentModelView = numpy.array(glGetFloatv(GL_MODELVIEW_MATRIX))
self.modelView = numpy.transpose(currentModelView)
self.inverseModelView = inv(numpy.transpose(currentModelView))
# render the scene. This will call the render function for each object in the scene
self.scene.render()
# draw the grid
glDisable(GL_LIGHTING)
glCallList(G_OBJ_PLANE)
glPopMatrix()
# flush the buffers so that the scene can be drawn
glFlush()
def highlightSelected(self, obj):
# TODO: merge with GLPane (from which this was copied and modified)
"""
Highlight the selected object <obj>. In the mean time, we do stencil test to
update stencil buffer, so it can be used to quickly test if pick is still
on the same <obj> as last test.
"""
if not obj:
return
if not isinstance(obj, Atom) or (obj.element is not Singlet):
return
self._preHighlight()
self._drawSelected_using_DrawingSets(obj)
self._endHighlight()
glFlush()
self.swapBuffers()
return
def blit_buffer(self, buffer, size=None, mode='RGB', format=None,
pos=(0, 0), buffertype=GL_UNSIGNED_BYTE):
'''Blit a buffer into a texture.
:Parameters:
`buffer` : str
Image data
`size` : tuple, default to texture size
Size of the image (width, height)
`mode` : str, default to 'RGB'
Image mode, can be one of RGB, RGBA, BGR, BGRA
`format` : glconst, default to None
if format is passed, it will be used instead of mode
`pos` : tuple, default to (0, 0)
Position to blit in the texture
`buffertype` : glglconst, default to GL_UNSIGNED_BYTE
Type of the data buffer
'''
if size is None:
size = self.size
if format is None:
format = self.mode_to_gl_format(mode)
target = self.target
glBindTexture(target, self.id)
glEnable(target)
# activate 1 alignement, of window failed on updating weird size
glPixelStorei(GL_UNPACK_ALIGNMENT, 1)
# need conversion ?
pdata, format = self._convert_buffer(buffer, format)
# transfer the new part of texture
glTexSubImage2D(target, 0, pos[0], pos[1],
size[0], size[1], format,
buffertype, pdata)
glFlush()
glDisable(target)
def present_fbo(self):
drawable = self.gl_init()
debug("present_fbo() drawable=%s", drawable)
self.gl_marker("Presenting FBO on screen")
if not drawable:
return
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
# Draw FBO texture on screen
self.set_rgb24_paint_state()
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
w, h = self.size
glBegin(GL_QUADS)
glTexCoord2i(0, h)
glVertex2i(0, 0)
glTexCoord2i(0, 0)
glVertex2i(0, h)
glTexCoord2i(w, 0)
glVertex2i(w, h)
glTexCoord2i(w, h)
glVertex2i(w, 0)
glEnd()
# Show the backbuffer on screen
if drawable.is_double_buffered():
debug("SWAPPING BUFFERS NOW")
drawable.swap_buffers()
# Clear the new backbuffer to illustrate that its contents are undefined
glClear(GL_COLOR_BUFFER_BIT)
else:
glFlush()
self.gl_frame_terminator()
self.unset_rgb24_paint_state()
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
drawable.gl_end()
def execute(self):
if self.PreExecute:
self.PreExecute()
if self.gl_objects:
cl.enqueue_acquire_gl_objects(self.queue, self.gl_objects)
#really we should use a python trick to get the name of the kernel function to call
#self.program.calibrate(self.queue, self.pos.shape, None,
# *(self.kernelargs))
#here we assume we only have one kernel in the program and we call that one...
self.program.all_kernels()[0](self.queue, self.pos.shape, None,
*(self.kernelargs))
if self.gl_objects:
cl.enqueue_release_gl_objects(self.queue, self.gl_objects)
self.queue.finish()
glFlush()
if self.PostExecute:
self.PostExecute()
def _on_expose_event(self, *args):
"""
Called on every frame rendering of the drawing area.
Calls self.draw() and swaps the buffers.
"""
print("_on_expose_event(%s)" % str(args))
gldrawable = self.get_gl_drawable()
glcontext = self.get_gl_context()
if gldrawable is None:
return False
if not gldrawable.gl_begin(glcontext):
return False
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
self.draw()
if gldrawable.is_double_buffered():
gldrawable.swap_buffers()
else:
glFlush()
gldrawable.gl_end()
return False
def _gldraw(self):
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
buf = np.asarray(self._screenbuffer)[::-1, :]
glDrawPixels(COLS, ROWS, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, buf)
glFlush()
def present_fbo(self, drawable):
if not self.paint_screen:
return
self.gl_marker("Presenting FBO on screen for drawable %s" % drawable)
assert drawable
# Change state to target screen instead of our FBO
glBindFramebuffer(GL_FRAMEBUFFER, 0)
if self._alpha_enabled:
# transparent background:
glClearColor(0.0, 0.0, 0.0, 0.0)
else:
# plain white no alpha:
glClearColor(1.0, 1.0, 1.0, 1.0)
# Draw FBO texture on screen
self.set_rgb_paint_state()
w, h = self.size
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, self.textures[TEX_FBO])
if self._alpha_enabled:
# support alpha channel if present:
glEnablei(GL_BLEND, self.textures[TEX_FBO])
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
glBegin(GL_QUADS)
glTexCoord2i(0, h)
glVertex2i(0, 0)
glTexCoord2i(0, 0)
glVertex2i(0, h)
glTexCoord2i(w, 0)
glVertex2i(w, h)
glTexCoord2i(w, h)
glVertex2i(w, 0)
glEnd()
#if desired, paint window border
if self.border and self.border.shown:
glDisable(GL_TEXTURE_RECTANGLE_ARB)
#double size since half the line will be off-screen
glLineWidth(self.border.size*2)
glColor4f(self.border.red, self.border.green, self.border.blue, self.border.alpha)
glBegin(GL_LINE_LOOP)
for x,y in ((0, 0), (w, 0), (w, h), (0, h)):
glVertex2i(x, y)
glEnd()
#reset color to default
glColor4f(1.0, 1.0, 1.0, 1.0)
# Show the backbuffer on screen
if drawable.is_double_buffered():
log("%s.present_fbo() swapping buffers now", self)
drawable.swap_buffers()
# Clear the new backbuffer to illustrate that its contents are undefined
glClear(GL_COLOR_BUFFER_BIT)
else:
glFlush()
self.gl_frame_terminator()
self.unset_rgb_paint_state()
glBindFramebuffer(GL_FRAMEBUFFER, self.offscreen_fbo)
log("%s.present_fbo() done", self)
def test_drawing(glpane, initOnly = False):
"""
When TEST_DRAWING is enabled at the start of
graphics/widgets/GLPane_rendering_methods.py,
and when TestGraphics_Command is run (see its documentation
for various ways to do that),
this file is loaded and GLPane.paintGL() calls the
test_drawing() function instead of the usual body of paintGL().
"""
# WARNING: this duplicates some code with test_Draw_model().
# Load the sphere shaders if needed.
global _USE_SHADERS
if _USE_SHADERS:
if not drawing_globals.test_sphereShader:
print "test_drawing: Loading sphere shaders."
try:
from graphics.drawing.gl_shaders import GLSphereShaderObject
drawing_globals.test_sphereShader = GLSphereShaderObject()
##### REVIEW: is this compatible with my refactoring in drawing_globals?
# If not, use of Test Graphics Performance command might cause subsequent
# bugs in other code. Ideally we'd call the new methods that encapsulate
# this, to setup shaders. [bruce 090304 comment]
print "test_drawing: Sphere-shader initialization is complete.\n"
except:
_USE_SHADERS = False
print "test_drawing: Exception while loading sphere shaders, will reraise and not try again"
raise
pass
global start_pos, first_time
if first_time:
# Set up the viewing scale, but then let interactive zooming work.
glpane.scale = nSpheres * .6
pass
# This same function gets called to set up for drawing, and to draw.
if not initOnly:
glpane._setup_modelview()
glpane._setup_projection()
##glpane._compute_frustum_planes()
glClearColor(64.0, 64.0, 64.0, 1.0)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT )
##glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT )
glMatrixMode(GL_MODELVIEW)
pass
global test_csdl, test_dl, test_dls, test_ibo, test_vbo, test_spheres
global test_DrawingSet, test_endpoints, test_Object
# See below for test case descriptions and timings on a MacBook Pro.
# The Qt event toploop in NE1 tops out at about 60 frames-per-second.
# NE1 with test toploop, single CSDL per draw (test case 1)
# . 17,424 spheres (132x132, through the color sorter) 4.8 FPS
# Russ 080919: More recently, 12.2 FPS.
# . Level 2 spheres have 9 triangles x 20 faces, 162 distinct vertices,
# visited on the average 2.3 times, giving 384 tri-strip vertices.
# . 17,424 spheres is 6.7 million tri-strip vertices. (6,690,816)
if testCase == 1:
if test_csdl is None:
print ("Test case 1, %d^2 spheres\n %s." %
(nSpheres, "ColorSorter"))
test_csdl = ColorSortedDisplayList()
ColorSorter.start(None, test_csdl)
drawsphere([0.5, 0.5, 0.5], # color
[0.0, 0.0, 0.0], # pos
.5, # radius
DRAWSPHERE_DETAIL_LEVEL,
testloop = nSpheres )
ColorSorter.finish(draw_now = True)
pass
else:
test_csdl.draw()
pass
# NE1 with test toploop, single display list per draw (test case 2)
# . 10,000 spheres (all drawing modes) 17.5 FPS
# . 17,424 spheres (132x132, manual display list) 11.1 FPS
# . 40,000 spheres (mode 5 - VBO/IBO spheres from DL's) 2.2 FPS
# . 40,000 spheres (mode 6 - Sphere shaders from DL's) 2.5 FPS
# . 90,000 spheres (all drawing modes) 1.1 FPS
elif testCase == 2:
if test_dl is None:
print ("Test case 2, %d^2 spheres\n %s." %
(nSpheres, "One display list calling primitive dl's"))
test_dl = glGenLists(1)
glNewList(test_dl, GL_COMPILE_AND_EXECUTE)
drawsphere_worker_loop(([0.0, 0.0, 0.0], # pos
.5, # radius
DRAWSPHERE_DETAIL_LEVEL,
nSpheres ))
glEndList()
pass
else:
glColor3i(127, 127, 127)
glCallList(test_dl)
pass
# NE1 with test toploop, one big chunk VBO/IBO of box quads (test case 3)
# . 17,424 spheres (1 box/shader draw call) 43.7 FPS
# . 17,424 spheres (1 box/shader draw call w/ rad/ctrpt attrs) 57.7 FPS
# . 40,000 spheres (1 box/shader draw call w/ rad/ctrpt attrs) 56.7 FPS
# . 90,000 spheres (1 box/shader draw call w/ rad/ctrpt attrs) 52.7 FPS
# . 160,000 spheres (1 box/shader draw call w/ rad/ctrpt attrs) 41.4 FPS
# . 250,000 spheres (1 box/shader draw call w/ rad/ctrpt attrs) 27.0 FPS
elif int(testCase) == 3:
doTransforms = False
if test_spheres is None:
print ("Test case 3, %d^2 spheres\n %s." %
(nSpheres, "One big VBO/IBO chunk buffer"))
if testCase == 3.1:
print ("Sub-test 3.1, animate partial updates.")
elif testCase == 3.2:
print ("Sub-test 3.2, animate partial updates" +
" w/ C per-chunk array buffering.")
elif testCase == 3.3:
print ("Sub-test 3.3, animate partial updates" +
" w/ Python array buffering.")
# . 3.4 - Big batch draw, with transforms indexed by IDs added.
# (Second FPS number with debug colors in the vertex shader off.)
# - 90,000 (300x300) spheres, TEXTURE_XFORMS = True, 26(29) FPS
# - 90,000 (300x300) spheres, N_CONST_XFORMS = 250, 26(29) FPS
# - 90,000 (300x300) spheres, N_CONST_XFORMS = 275, 0.3(0.6) FPS
# (What happens after 250? CPU usage goes from 40% to 94%.)
# -160,000 (400x400) spheres, TEXTURE_XFORMS = True, 26 FPS
# -250,000 (500x500) spheres, TEXTURE_XFORMS = True, 26 FPS
elif testCase == 3.4:
print ("Sub-test 3.4, add transforms indexed by IDs.")
from graphics.drawing.gl_shaders import TEXTURE_XFORMS
from graphics.drawing.gl_shaders import N_CONST_XFORMS
from graphics.drawing.gl_shaders import UNIFORM_XFORMS
if TEXTURE_XFORMS:
print "Transforms in texture memory."
elif UNIFORM_XFORMS:
print "%d transforms in uniform memory." % N_CONST_XFORMS
pass
else:
print "transforms not supported, error is likely"
doTransforms = True
pass
centers = []
radius = .5
radii = []
colors = []
if not doTransforms:
transformIDs = None
else:
transformIDs = []
transformChunkID = -1 # Allocate IDs sequentially from 0.
# For this test, allow arbitrarily chunking the primitives.
primCounter = transformChunkLength
transforms = [] # Accumulate transforms as a list of lists.
# Initialize transforms with an identity matrix.
# Transforms here are lists (or Numpy arrays) of 16 numbers.
identity = ([1.0] + 4*[0.0]) * 3 + [1.0]
pass
for x in range(nSpheres):
for y in range(nSpheres):
centers += [sphereLoc(x, y)]
# Sphere radii progress from 3/4 to full size.
t = float(x+y)/(nSpheres+nSpheres) # 0 to 1 fraction.
thisRad = radius * (.75 + t*.25)
radii += [thisRad]
# Colors progress from red to blue.
colors += [rainbow(t)]
# Transforms go into a texture memory image if needed.
# Per-primitive Transform IDs go into an attribute VBO.
if doTransforms:
primCounter = primCounter + 1
if primCounter >= transformChunkLength:
# Start a new chunk, allocating a transform matrix.
primCounter = 0
transformChunkID += 1
if 0: # 1
# Debug hack: Label mat[0,0] with the chunk ID.
# Vertex shader debug code shows these in blue.
# If viewed as geometry, it will be a slight
# stretch of the array in the X direction.
transforms += [
[1.0+transformChunkID/100.0] + identity[1:]]
elif 0: # 1
# Debug hack: Fill mat with mat.element pattern.
transforms += [
[transformChunkID +
i/100.0 for i in range(16)]]
else:
transforms += [identity]
pass
pass
# All of the primitives in a chunk have the same ID.
transformIDs += [transformChunkID]
pass
continue
continue
test_spheres = GLSphereBuffer()
test_spheres.addSpheres(centers, radii, colors, transformIDs, None)
if doTransforms:
print ("%d primitives in %d transform chunks of size <= %d" %
(nSpheres * nSpheres, len(transforms),
transformChunkLength))
shader = drawing_globals.test_sphereShader
shader.setupTransforms(transforms)
pass
else:
shader = drawing_globals.test_sphereShader
shader.configShader(glpane)
# Update portions for animation.
pulse = time.time()
pulse -= floor(pulse) # 0 to 1 in each second
# Test animating updates on 80% of the radii in 45% of the columns.
# . 3.1 - Update radii Python array per-column, send to graphics RAM.
# - 2,500 (50x50) spheres 55 FPS
# - 10,000 (100x100) spheres 35 FPS
# - 17,424 (132x132) spheres 22.2 FPS
# - 40,000 (200x200) spheres 12.4 FPS
# - 90,000 (300x300) spheres 6.0 FPS
if testCase == 3.1:
# Not buffered, send each column change.
radius = .5
margin = nSpheres/10
for x in range(margin, nSpheres, 2):
radii = []
for y in range(margin, nSpheres-margin):
t = float(x+y)/(nSpheres+nSpheres) # 0 to 1 fraction.
# Sphere radii progress from 3/4 to full size.
thisRad = radius * (.75 + t*.25)
phase = pulse + float(x+y)/nSpheres
radii += 8 * [thisRad-.1 + .1*sin(phase * 2*pi)]
continue
C_radii = numpy.array(radii, dtype=numpy.float32)
offset = x*nSpheres + margin
test_spheres.radii_vbo.update(offset * 8, C_radii)
continue
pass
# . 3.2 - Numpy buffered in C array, subscript assignments to C.
# - 2,500 (50x50) spheres 48 FPS
# - 10,000 (100x100) spheres 17.4 FPS
# - 17,424 (132x132) spheres 11.2 FPS
# - 40,000 (200x200) spheres 5.5 FPS
# - 90,000 (300x300) spheres 2.5 FPS
elif testCase == 3.2:
# Buffered per-chunk at the C array level.
radius = .5
margin = nSpheres/10
global C_array
if C_array is None:
# Replicate.
C_array = numpy.zeros((8 * (nSpheres-(2*margin)),),
dtype=numpy.float32)
pass
for x in range(margin, nSpheres, 2):
count = 0
for y in range(margin, nSpheres-margin):
t = float(x+y)/(nSpheres+nSpheres) # 0 to 1 fraction.
# Sphere radii progress from 3/4 to full size.
thisRad = radius * (.75 + t*.25)
phase = pulse + float(x+y)/nSpheres
C_array[count*8:(count+1)*8] = \
thisRad-.1 + .1*sin(phase * 2*pi)
count += 1
continue
offset = x*nSpheres + margin
test_spheres.radii_vbo.update(offset * 8, C_array)
continue
pass
# . 3.3 - updateRadii in Python array, copy via C to graphics RAM.
# - 2,500 (50x50) spheres 57 FPS
# - 10,000 (100x100) spheres 32 FPS
# - 17,424 (132x132) spheres 20 FPS
# - 40,000 (200x200) spheres 10.6 FPS
# - 90,000 (300x300) spheres 4.9 FPS
elif testCase == 3.3:
# Buffered at the Python level, batch the whole-array update.
radius = .5
margin = nSpheres/10
for x in range(margin, nSpheres, 2):
radii = []
for y in range(margin, nSpheres-margin):
t = float(x+y)/(nSpheres+nSpheres) # 0 to 1 fraction.
# Sphere radii progress from 3/4 to full size.
thisRad = radius * (.75 + t*.25)
phase = pulse + float(x+y)/nSpheres
radii += [thisRad-.1 + .1*sin(phase * 2*pi)]
continue
test_spheres.updateRadii( # Update, but don't send yet.
x*nSpheres + margin, radii, send = False)
continue
test_spheres.sendRadii()
pass
# Options: color = [0.0, 1.0, 0.0], transform_id = 1, radius = 1.0
test_spheres.draw()
pass
# NE1 with test toploop, separate sphere VBO/IBO box/shader draws (test case 4)
# . 17,424 spheres (132x132 box/shader draw quads calls) 0.7 FPS
elif testCase == 4:
if test_ibo is None:
print ("Test case 4, %d^2 spheres\n %s." %
(nSpheres,
"Separate VBO/IBO shader/box buffer sphere calls, no DL"))
# Collect transformed bounding box vertices and offset indices.
# Start at the lower-left corner, offset so the whole pattern comes
# up centered on the origin.
cubeVerts = drawing_globals.shaderCubeVerts
cubeIndices = drawing_globals.shaderCubeIndices
C_indices = numpy.array(cubeIndices, dtype=numpy.uint32)
test_ibo = GLBufferObject(
GL_ELEMENT_ARRAY_BUFFER_ARB, C_indices, GL_STATIC_DRAW)
test_ibo.unbind()
C_verts = numpy.array(cubeVerts, dtype=numpy.float32)
test_vbo = GLBufferObject(
GL_ARRAY_BUFFER_ARB, C_verts, GL_STATIC_DRAW)
test_vbo.unbind()
pass
else:
drawing_globals.test_sphereShader.configShader(glpane)
glEnableClientState(GL_VERTEX_ARRAY)
test_vbo.bind() # Vertex data comes from the vbo.
glVertexPointer(3, GL_FLOAT, 0, None)
drawing_globals.test_sphereShader.setActive(True)
glDisable(GL_CULL_FACE)
glColor3i(127, 127, 127)
test_ibo.bind() # Index data comes from the ibo.
for x in range(nSpheres):
for y in range(nSpheres):
# From drawsphere_worker_loop().
pos = start_pos + (x+x/10+x/100) * V(1, 0, 0) + \
(y+y/10+y/100) * V(0, 1, 0)
radius = .5
glPushMatrix()
glTranslatef(pos[0], pos[1], pos[2])
glScale(radius,radius,radius)
glDrawElements(GL_QUADS, 6 * 4, GL_UNSIGNED_INT, None)
glPopMatrix()
continue
continue
drawing_globals.test_sphereShader.setActive(False)
glEnable(GL_CULL_FACE)
test_ibo.unbind()
test_vbo.unbind()
glDisableClientState(GL_VERTEX_ARRAY)
pass
# NE1 with test toploop,
# One DL around separate VBO/IBO shader/box buffer sphere calls (test case 5)
# . 17,424 spheres (1 box/shader DL draw call) 9.2 FPS
elif testCase == 5:
if test_dl is None:
print ("Test case 5, %d^2 spheres\n %s." %
(nSpheres,
"One DL around separate VBO/IBO shader/box buffer sphere calls"))
# Collect transformed bounding box vertices and offset indices.
# Start at the lower-left corner, offset so the whole pattern comes
# up centered on the origin.
cubeVerts = drawing_globals.shaderCubeVerts
cubeIndices = drawing_globals.shaderCubeIndices
C_indices = numpy.array(cubeIndices, dtype=numpy.uint32)
test_ibo = GLBufferObject(
GL_ELEMENT_ARRAY_BUFFER_ARB, C_indices, GL_STATIC_DRAW)
test_ibo.unbind()
C_verts = numpy.array(cubeVerts, dtype=numpy.float32)
test_vbo = GLBufferObject(
GL_ARRAY_BUFFER_ARB, C_verts, GL_STATIC_DRAW)
test_vbo.unbind()
# Wrap a display list around the draws.
test_dl = glGenLists(1)
glNewList(test_dl, GL_COMPILE_AND_EXECUTE)
glEnableClientState(GL_VERTEX_ARRAY)
test_vbo.bind() # Vertex data comes from the vbo.
glVertexPointer(3, GL_FLOAT, 0, None)
drawing_globals.test_sphereShader.setActive(True)
glDisable(GL_CULL_FACE)
glColor3i(127, 127, 127)
test_ibo.bind() # Index data comes from the ibo.
for x in range(nSpheres):
for y in range(nSpheres):
# From drawsphere_worker_loop().
pos = start_pos + (x+x/10+x/100) * V(1, 0, 0) + \
(y+y/10+y/100) * V(0, 1, 0)
radius = .5
glPushMatrix()
glTranslatef(pos[0], pos[1], pos[2])
glScale(radius,radius,radius)
glDrawElements(GL_QUADS, 6 * 4, GL_UNSIGNED_INT, None)
glPopMatrix()
continue
continue
drawing_globals.test_sphereShader.setActive(False)
glEnable(GL_CULL_FACE)
test_ibo.unbind()
test_vbo.unbind()
glDisableClientState(GL_VERTEX_ARRAY)
glEndList()
else:
glColor3i(127, 127, 127)
glCallList(test_dl)
pass
pass
# NE1 with test toploop,
# N column DL's around VBO/IBO shader/box buffer sphere calls (test case 6)
# . 2,500 (50x50) spheres 58 FPS
# . 10,000 (100x100) spheres 57 FPS
# . 17,424 (132x132) spheres 56 FPS
# . 40,000 (200x200) spheres 50 FPS
# . 90,000 (300x300) spheres 28 FPS
# . 160,000 (400x400) spheres 16.5 FPS
# . 250,000 (500x500) spheres 3.2 FPS
elif testCase == 6:
if test_dls is None:
print ("Test case 6, %d^2 spheres\n %s." %
(nSpheres,
"N col DL's around VBO/IBO shader/box buffer sphere calls"))
# Wrap n display lists around the draws (one per column.)
test_dls = glGenLists(nSpheres) # Returns ID of first DL in the set.
test_spheres = []
for x in range(nSpheres):
centers = []
radius = .5
radii = []
colors = []
# Each column is relative to its bottom sphere location. Start
# at the lower-left corner, offset so the whole pattern comes up
# centered on the origin.
start_pos = V(0, 0, 0) # So it doesn't get subtracted twice.
pos = sphereLoc(x, 0) - V(nSpheres/2.0, nSpheres/2.0, 0)
for y in range(nSpheres):
centers += [sphereLoc(0, y)]
# Sphere radii progress from 3/4 to full size.
t = float(x+y)/(nSpheres+nSpheres) # 0 to 1 fraction.
thisRad = radius * (.75 + t*.25)
radii += [thisRad]
# Colors progress from red to blue.
colors += [rainbow(t)]
continue
test_sphere = GLSphereBuffer()
test_sphere.addSpheres(centers, radii, colors, None, None)
test_spheres += [test_sphere]
glNewList(test_dls + x, GL_COMPILE_AND_EXECUTE)
glPushMatrix()
glTranslatef(pos[0], pos[1], pos[2])
test_sphere.draw()
glPopMatrix()
glEndList()
continue
pass
else:
shader = drawing_globals.test_sphereShader
shader.configShader(glpane) # Turn the lights on.
for x in range(nSpheres):
glCallList(test_dls + x)
continue
pass
pass
# NE1 with test toploop,
# N column VBO sets of shader/box buffer sphere calls (test case 7)
# . 2,500 (50x50) spheres 50 FPS
# . 10,000 (100x100) spheres 30.5 FPS
# . 17,424 (132x132) spheres 23.5 FPS
# . 40,000 (200x200) spheres 16.8 FPS
# . 90,000 (300x300) spheres 10.8 FPS
# . 160,000 (400x400) spheres 9.1 FPS
# . 250,000 (500x500) spheres 7.3 FPS
elif testCase == 7:
if test_spheres is None:
print ("Test case 7, %d^2 spheres\n %s." %
(nSpheres, "Per-column VBO/IBO chunk buffers"))
test_spheres = []
for x in range(nSpheres):
centers = []
radius = .5
radii = []
colors = []
for y in range(nSpheres):
centers += [sphereLoc(x, y)]
# Sphere radii progress from 3/4 to full size.
t = float(x+y)/(nSpheres+nSpheres) # 0 to 1 fraction.
thisRad = radius * (.75 + t*.25)
radii += [thisRad]
# Colors progress from red to blue.
colors += [rainbow(t)]
continue
_spheres1 = GLSphereBuffer()
_spheres1.addSpheres(centers, radii, colors, None, None)
test_spheres += [_spheres1]
continue
pass
else:
shader = drawing_globals.test_sphereShader
shader.configShader(glpane)
for chunk in test_spheres:
chunk.draw()
pass
# NE1 with test toploop,
# Short chunk VBO sets of shader/box buffer sphere calls (test case 8)
# . 625 (25x25) spheres 30 FPS, 79 chunk buffers of length 8.
# . 2,500 (50x50) spheres 13.6 FPS, 313 chunk buffers of length 8.
# . 10,000 (100x100) spheres 6.4 FPS, 704 chunk buffers of length 8.
# . 10,000 (100x100) spheres 3.3 FPS, 1250 chunk buffers of length 8.
# . 17,424 (132x132) spheres 2.1 FPS, 2178 chunk buffers of length 8.
# . 2,500 (50x50) spheres 33.5 FPS, 105 chunk buffers of length 24.
# . 17,424 (132x132) spheres 5.5 FPS, 726 chunk buffers of length 24.
#
# Subcase 8.1: CSDLs in a DrawingSet. (Initial pass-through version.)
# . 2,500 (50x50) spheres 36.5 FPS, 105 chunk buffers of length 24.
# . 5,625 (75x75) spheres 16.1 FPS, 235 chunk buffers of length 24.
# . 10,000 (100x100) spheres 0.5 FPS?!, 414 chunk buffers of length 24.
# Has to be <= 250 chunks for constant memory transforms?
# . 10,000 (100x100) spheres 11.8 FPS, 50 chunk buffers of length 200.
# After a minute of startup.
# . 10,000 (100x100) spheres 9.3 FPS, 200 chunk buffers of length 50.
# After a few minutes of startup.
# Subcase 8.2: CSDLs in a DrawingSet with transforms. (Pass-through.)
# . 10,000 (100x100) spheres 11.5 FPS, 50 chunk buffers of length 200.
#
# Subcase 8.1: CSDLs in a DrawingSet. (First HunkBuffer version.)
# Measured with auto-rotate on, ignoring startup and occasional outliers.
# As before, on a 2 core, 2.4 GHz Intel MacBook Pro with GeForce 8600M GT.
# HUNK_SIZE = 10000
# . 2,500 (50x50) spheres 140-200 FPS, 105 chunks of length 24.
# . 5,625 (75x75) spheres 155-175 FPS, 235 chunks of length 24.
# . 10,000 (100x100) spheres 134-145 FPS, 50 chunks of length 200.
# . 10,000 (100x100) spheres 130-143 FPS, 200 chunks of length 50.
# . 10,000 (100x100) spheres 131-140 FPS, 1,250 chunks of length 8.
# Chunks are gathered into hunk buffers, so no chunk size speed diff.
# . 17,424 (132x132) spheres 134-140 FPS, 88 chunks of length 200.
# . 17,424 (132x132) spheres 131-140 FPS, 2,178 chunks of length 8.
# HUNK_SIZE = 20000
# . 17,424 (132x132) spheres 131-140 FPS, 88 chunks of length 200.
# . 17,424 (132x132) spheres 130-141 FPS, 2,178 chunks of length 8.
# HUNK_SIZE = 10000
# . 40,000 (200x200) spheres 77.5-82.8 FPS, 5,000 chunks of length 8.
# . 90,000 (300x300) spheres 34.9-42.6 FPS, 11,2500 chunks of length 8.
# Spheres are getting down to pixel size, causing moire patterns.
# Rotate the sphere-array off-axis 45 degrees to minimize.
# (Try adding multi-sampled anti-aliasing, to the drawing test...)
# . 160,000 (400x400) spheres 26.4-27.1 FPS, 20,000 chunks of length 8.
# . 250,000 (500x500) spheres 16.8-17.1 FPS, 31,250 chunks of length 8.
# The pattern is getting too large, far-clipping is setting in.
# . 360,000 (600x600) spheres 11.6-11.8 FPS, 45,000 chunks of length 8.
# Extreme far-clipping in the drawing test pattern.
# HUNK_SIZE = 20000; no significant speed-up.
# . 40,000 (200x200) spheres 75.9-81.5 FPS, 5,000 chunks of length 8.
# . 90,000 (300x300) spheres 41.2-42.4 FPS, 11,250 chunks of length 8.
# Spheres are getting down to pixel size, causing moire patterns.
# . 160,000 (400x400) spheres 26.5-26.9 FPS, 20,000 chunks of length 8.
# . 250,000 (500x500) spheres 16.5-17.1 FPS, 31,250 chunks of length 8.
# . 360,000 (600x600) spheres 11.8-12.1 FPS, 45,000 chunks of length 8.
# HUNK_SIZE = 5000; no significant slowdown or CPU load difference.
# . 40,000 (200x200) spheres 81.0-83.8 FPS, 5,000 chunks of length 8.
# . 160,000 (400x400) spheres 27.3-29.4 FPS, 20,000 chunks of length 8.
# . 360,000 (600x600) spheres 11.7-12.1 FPS, 45,000 chunks of length 8.
#
# Retest after updating MacOS to 10.5.5, with TestGraphics, HUNK_SIZE = 5000
# . 40,000 (200x200) spheres 68.7-74.4 FPS, 5,000 chunks of length 8.
# . 90,000 (300x300) spheres 39.4-42.0 FPS, 11,250 chunks of length 8.
# . 160,000 (400x400) spheres 24.4-25.2 FPS, 20,000 chunks of length 8.
# Retest with glMultiDrawElements drawing indexes in use, HUNK_SIZE = 5000
# . 40,000 (200x200) spheres 52.8-54.4 FPS, 5,000 chunks of length 8.
# . 90,000 (300x300) spheres 22.8-23.3 FPS, 11,250 chunks of length 8.
# . 160,000 (400x400) spheres 13.5-15.2 FPS, 20,000 chunks of length 8.
#
# Retest with reworked halo/sphere shader, HUNK_SIZE = 5000 [setup time]
# . 17,424 (132x132) spheres 52.8-53.7 FPS, 2,178 chunks of length 8. [60]
# . 40,000 (200x200) spheres 29.3-30.4 FPS, 5,000 chunks of length 8.[156]
# . 90,000 (300x300) spheres 18.2-19.2 FPS, 11,250 chunks of length 8.[381]
# . 160,000 (400x400) spheres 10.2-11.6 FPS, 20,000 chunks of length 8.[747]
# Billboard drawing patterns instead of cubes, HUNK_SIZE = 5000 [setup time]
# . 17,424 (132x132) spheres 49.7-55.7 FPS, 2,178 chunks of length 8. [35]
# . 40,000 (200x200) spheres 39.6-40.8 FPS, 5,000 chunks of length 8. [88]
# . 90,000 (300x300) spheres 18.9-19.5 FPS, 11,250 chunks of length 8.[225]
# . 160,000 (400x400) spheres 11.2-11.7 FPS, 20,000 chunks of length 8.[476]
#
elif int(testCase) == 8:
doTransforms = False
doCylinders = False
if test_spheres is None:
# Setup.
print ("Test case 8, %d^2 primitives\n %s, length %d." %
(nSpheres, "Short VBO/IBO chunk buffers", chunkLength))
if testCase == 8.1:
print ("Sub-test 8.1, sphere chunks are in CSDL's in a DrawingSet.")
test_DrawingSet = DrawingSet()
elif testCase == 8.2:
print ("Sub-test 8.2, spheres, rotate with TransformControls.")
test_DrawingSet = DrawingSet()
doTransforms = True
elif testCase == 8.3:
print ("Sub-test 8.3, cylinder chunks are in CSDL's in a DrawingSet.")
test_DrawingSet = DrawingSet()
doCylinders = True
pass
if test_DrawingSet:
# note: doesn't happen in test 8.0, which causes a bug then. [bruce 090223 comment]
print "constructed test_DrawingSet =", test_DrawingSet
if USE_GRAPHICSMODE_DRAW:
print ("Use graphicsMode.Draw_model for DrawingSet in paintGL.")
pass
t1 = time.time()
if doTransforms:
# Provide several TransformControls to test separate action.
global numTCs, TCs
numTCs = 3
TCs = [TransformControl() for i in range(numTCs)]
pass
def primCSDL(centers, radii, colors):
if not doTransforms:
csdl = ColorSortedDisplayList() # Transformless.
else:
# Test pattern for TransformControl usage - vertical columns
# of TC domains, separated by X coord of first center point.
# Chunking will be visible when transforms are changed.
xCoord = centers[0][0] - start_pos[0] # Negate centering X.
xPercent = (xCoord /
(nSpheres + nSpheres/10 +
nSpheres/100 - 1 + (nSpheres <= 1)))
xTenth = int(xPercent * 10 + .5)
csdl = ColorSortedDisplayList(TCs[xTenth % numTCs])
pass
# Test selection using the CSDL glname.
ColorSorter.pushName(csdl.glname)
ColorSorter.start(glpane, csdl)
for (color, center, radius) in zip(colors, centers, radii):
if not doCylinders:
# Through ColorSorter to the sphere primitive buffer...
drawsphere(color, center, radius,
DRAWSPHERE_DETAIL_LEVEL)
else:
# Through ColorSorter to cylinder primitive buffer...
if not drawing_globals.cylinderShader_available():
print "warning: not cylinderShader_available(), error is likely:"
if (True and # Whether to do tapered shader-cylinders.
# Display List cylinders don't support taper.
glpane.glprefs.cylinderShader_desired()):
###cylRad = (radius/2.0, (.75-radius)/2.0)
cylRad = (radius/1.5 - .167, .3 - radius/1.5)
else:
cylRad = radius/2.0
pass
endPt2 = center + V(0.5, 0.0, 0.0) # 0.5, -0.5)
drawcylinder(color, center, endPt2, cylRad)
global test_endpoints
test_endpoints += [(center, endPt2)]
pass
continue
ColorSorter.popName()
ColorSorter.finish(draw_now = True)
test_DrawingSet.addCSDL(csdl)
return csdl
if testCase == 8:
#bruce 090223 revised to try to avoid traceback
def chunkFn(centers, radii, colors):
res = GLSphereBuffer()
res.addSpheres(centers, radii, colors, None, None)
return res
pass
else:
chunkFn = primCSDL
pass
test_spheres = []
radius = .5
centers = []
radii = []
colors = []
global test_endpoints
test_endpoints = []
for x in range(nSpheres):
for y in range(nSpheres):
centers += [sphereLoc(x, y)]
# Sphere radii progress from 3/4 to full size.
t = float(x+y)/(nSpheres+nSpheres) # 0 to 1 fraction.
thisRad = radius * (.5 + t*.5)
radii += [thisRad]
# Colors progress from red to blue.
colors += [rainbow(t)]
# Put out short chunk buffers.
if len(centers) >= chunkLength:
test_spheres += [
chunkFn(centers, radii, colors) ]
centers = []
radii = []
colors = []
continue
continue
# Remainder fraction buffer.
if len(centers):
test_spheres += [chunkFn(centers, radii, colors)]
pass
print "Setup time", time.time() - t1, "seconds."
print "%d chunk buffers" % len(test_spheres)
pass
elif not initOnly: # Run.
test_Draw_8x(glpane)
pass
elif testCase == 100: #bruce 090102
# before making more of these, modularize it somehow
from commands.TestGraphics.test_selection_redraw import test_selection_redraw
test_class = test_selection_redraw
params = ( nSpheres, )
# note: test size is not directly comparable to other tests with same value of nSpheres
if test_Object is None \
or not isinstance(test_Object, test_class) \
or test_Object.current_params() != params: # review: same_vals?
# Setup.
if test_Object:
test_Object.destroy()
test_Object = test_class(*params)
test_Object.activate()
print test_Object
pass
# review: safe to change elif to if? not sure, GL state is only initialized below
elif not initOnly: # Run.
test_Object.draw_complete()
pass
pass
if not initOnly:
glMatrixMode(GL_MODELVIEW)
glFlush()
pass
first_time = False
return
def gl_end(self, drawable):
if drawable.is_double_buffered():
drawable.swap_buffers()
else:
glFlush()
drawable.gl_end()
def OnPaint(self, event):
# startTime = time.time()
if not self.init:
self.context = GLContext(self)
self.SetCurrent(self.context)
glEnable(GL_DEPTH_TEST);
self.init = True
if self._refreshAll:
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
# prepareTime = time.time() - startTime
if self.dataNum == 0:
self.SwapBuffers()
return
eyePos = self.eyeDistance
ex = 0.0
ey = 0.0
ez = 0.0
dx = 0.0
dy = 0.0
dz = 0.0
ux = 0.0
uy = 0.0
uz = 0.0
xLen = max(abs(self.xMax), abs(self.xMin)) * 2
yLen = max(abs(self.yMax), abs(self.yMin)) * 2
zLen = max(abs(self.zMax), abs(self.zMin)) * 2
# print 'transX, transY:', self.transX, self.transY
if self.is3D:
r2s = max(xLen, yLen, zLen) / self.size.width
tX = self.transX * r2s
tY = self.transY * r2s
if not zLen == 0:
z = zLen / 2
if yLen / zLen > self.size.width / self.size.height:
z = yLen * self.size.height / self.size.width / 2
z *= 1.5
usedAngle = pi / 2 - viewPosAngle
cfovy1 = (eyePos - z * cos(usedAngle)) / sqrt(eyePos * eyePos + z * z - 2 * eyePos * z * cos(usedAngle))
cfovy2 = (eyePos - z * cos(pi - usedAngle)) / sqrt(eyePos * eyePos + z * z - 2 * eyePos * z * cos(pi - usedAngle))
fovy1 = degrees(acos(cfovy1))
fovy2 = degrees(acos(cfovy2))
self.fovy = 3 * max(fovy1, fovy2)
angleX = viewPosAngle + radians(self.angleHorizontal)
angleZ = viewPosAngle + radians(self.angleVertical)
ex = eyePos * cos(angleZ) * cos(angleX)
ey = eyePos * cos(angleZ) * sin(angleX)
ez = eyePos * sin(angleZ)
ux = 0.0
uy = cos(pi / 2 - radians(self.angleFlat))
uz = sin(pi / 2 - radians(self.angleFlat))
flatAngle = radians(self.angleFlat)
dx = -tX * cos(flatAngle) * sin(angleX) - tX * sin(flatAngle) * sin(angleZ) * sin(angleX)
dx += tY * sin(flatAngle) * sin(angleX) - tY * cos(flatAngle) * sin(angleZ) * cos(angleX)
dy = tX * cos(flatAngle) * cos(angleX) - tX * sin(flatAngle) * sin(angleZ) * cos(angleX)
dy += -tY * sin(flatAngle) * cos(angleX) - tY * cos(flatAngle) * sin(angleZ) * sin(angleX)
dz = tX * sin(flatAngle) * cos(angleZ)
dz += tY * cos(flatAngle) * cos(angleZ)
else:
r2s = xLen / self.size.width
dx = self.transX * r2s
dy = self.transY * r2s
dz = 0.0
y = yLen / 2
if xLen / yLen > self.size.width / self.size.height:
y = xLen * self.size.height / self.size.width / 2
y += yLen / 10
self.fovy = 2 * degrees(atan(y / eyePos))
ez = eyePos
ux = sin(radians(self.angleFlat))
uy = cos(radians(self.angleFlat))
uz = 0.0
scale = 1
if self.size != None:
scale = float(self.size.width) / self.size.height
# userCalculationTime = time.time() - startTime - prepareTime
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
if self.is3D:
gluPerspective(self.fovy * self.scaleFactor, scale, 0.1, self.eyeDistance * 2)
else:
gluPerspective(self.fovy * self.scaleFactor, scale,
self.eyeDistance - self.zMax - 10, self.eyeDistance - self.zMin + 10)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
gluLookAt(ex, ey, ez, -dx, -dy, -dz, ux, uy, uz)
self._startPointIdx = 0
if self.isDragging:
# draw the frame instead of all data
glLineWidth(1.0)
glColor3f(0.0, 0.5, 0.0)
glBegin(GL_LINES)
glVertex3f(self.xMin, self.yMin, self.zMin) # 1
glVertex3f(self.xMax, self.yMin, self.zMin) # 2
glVertex3f(self.xMax, self.yMin, self.zMin) # 2
glVertex3f(self.xMax, self.yMax, self.zMin) # 3
glVertex3f(self.xMax, self.yMax, self.zMin) # 3
glVertex3f(self.xMin, self.yMax, self.zMin) # 4
glVertex3f(self.xMin, self.yMax, self.zMin) # 4
glVertex3f(self.xMin, self.yMin, self.zMin) # 1
glVertex3f(self.xMin, self.yMin, self.zMin) # 1
glVertex3f(self.xMin, self.yMin, self.zMax) # 5
glVertex3f(self.xMin, self.yMin, self.zMax) # 5
glVertex3f(self.xMax, self.yMin, self.zMax) # 6
glVertex3f(self.xMax, self.yMin, self.zMax) # 6
glVertex3f(self.xMax, self.yMax, self.zMax) # 7
glVertex3f(self.xMax, self.yMax, self.zMax) # 7
glVertex3f(self.xMin, self.yMax, self.zMax) # 8
glVertex3f(self.xMin, self.yMax, self.zMax) # 8
glVertex3f(self.xMin, self.yMin, self.zMax) # 5
glVertex3f(self.xMax, self.yMin, self.zMin) # 2
glVertex3f(self.xMax, self.yMin, self.zMax) # 6
glVertex3f(self.xMax, self.yMax, self.zMin) # 3
glVertex3f(self.xMax, self.yMax, self.zMax) # 7
glVertex3f(self.xMin, self.yMax, self.zMin) # 4
glVertex3f(self.xMin, self.yMax, self.zMax) # 8
glEnd()
glFlush()
self.SwapBuffers()
return
glEnableClientState(GL_VERTEX_ARRAY)
if self.colorsNum >= self.dataNum:
glEnableClientState(GL_COLOR_ARRAY)
glDrawBuffer(GL_FRONT_AND_BACK)
if self._startPointIdx + self._drawnPointsNum >= self.dataNum:
glDrawArrays(GL_POINTS, self._startPointIdx, self.dataNum - self._startPointIdx)
if self.displaySelected:
selNum = len(self.displayedSelPoints)
if selNum >= 2:
glLineWidth(2.0)
glColor3f(0.0, 1.0, 0.0)
glBegin(GL_LINES)
for i in xrange(1, selNum):
glVertex3f(self.displayedSelPoints[i - 1][0],
self.displayedSelPoints[i - 1][1],
self.displayedSelPoints[i - 1][2])
glVertex3f(self.displayedSelPoints[i][0],
self.displayedSelPoints[i][1],
self.displayedSelPoints[i][2])
glVertex3f(self.displayedSelPoints[selNum - 1][0],
self.displayedSelPoints[selNum - 1][1],
self.displayedSelPoints[selNum - 1][2])
glVertex3f(self.displayedSelPoints[0][0],
self.displayedSelPoints[0][1],
self.displayedSelPoints[0][2])
glEnd()
self._refreshAll = True
else:
glDrawArrays(GL_POINTS, self._startPointIdx, self._drawnPointsNum)
self._refreshAll = False
self._isFront = not self._isFront
self._startPointIdx += self._drawnPointsNum if self._isFront else 0
glDisableClientState(GL_VERTEX_ARRAY)
if self.colorsNum >= self.dataNum:
glDisableClientState(GL_COLOR_ARRAY)
glFlush()
self.SwapBuffers()
# drawingTime = time.time() - startTime - prepareTime - userCalculationTime
# print "preparation time:", str(prepareTime), "user calculation time:",\
# str(userCalculationTime), "drawing time:", str(drawingTime)
if not self._refreshAll:
PostEvent(self, PaintEvent())
event.Skip()
def select(self, wX, wY):
"""
Use the OpenGL picking/selection to select any object. Return the
selected object, otherwise, return None. Restore projection and
modelview matrices before returning.
"""
### NOTE: this code is similar to (and was copied and modified from)
# GLPane_highlighting_methods.do_glselect_if_wanted, but also differs
# in significant ways (too much to make it worth merging, unless we
# decide to merge the differing algorithms as well). It's one of
# several instances of hit-test code that calls glRenderMode.
# [bruce 060721/080917 comment]
wZ = glReadPixelsf(wX, wY, 1, 1, GL_DEPTH_COMPONENT)
gz = wZ[0][0]
if gz >= GL_FAR_Z: # Empty space was clicked
return None
pxyz = A(gluUnProject(wX, wY, gz))
pn = self.out
pxyz -= 0.0002 * pn
# Note: if this runs before the model is drawn, this can have an
# exception "OverflowError: math range error", presumably because
# appropriate state for gluUnProject was not set up. That doesn't
# normally happen but can happen due to bugs (no known open bugs
# of that kind).
# Sometimes our drawing area can become "stuck at gray",
# and when that happens, the same exception can occur from this line.
# Could it be that too many accidental mousewheel scrolls occurred
# and made the scale unreasonable? (To mitigate, we should prevent
# those from doing anything unless we have a valid model, and also
# reset that scale when loading a new model (latter is probably
# already done, but I didn't check). See also the comments
# in def wheelEvent.) [bruce 080220 comment]
dp = - dot(pxyz, pn)
# Save projection matrix before it's changed.
glMatrixMode(GL_PROJECTION)
glPushMatrix()
current_glselect = (wX, wY, 1, 1)
self._setup_projection(glselect = current_glselect)
glSelectBuffer(self.SIZE_FOR_glSelectBuffer)
glRenderMode(GL_SELECT)
glInitNames()
glMatrixMode(GL_MODELVIEW)
# Save model view matrix before it's changed.
glPushMatrix()
# Draw model using glRenderMode(GL_SELECT) as set up above
try:
glClipPlane(GL_CLIP_PLANE0, (pn[0], pn[1], pn[2], dp))
glEnable(GL_CLIP_PLANE0)
self._drawModel_using_DrawingSets()
except:
#bruce 080917 fixed predicted bugs in this except clause (untested)
print_compact_traceback("exception in ThumbView._drawModel_using_DrawingSets() during GL_SELECT; ignored; restoring matrices: ")
glDisable(GL_CLIP_PLANE0)
glMatrixMode(GL_PROJECTION)
glPopMatrix()
glMatrixMode(GL_MODELVIEW)
glPopMatrix()
glRenderMode(GL_RENDER)
return None
else:
glDisable(GL_CLIP_PLANE0)
# Restore model/view matrix
glPopMatrix()
# Restore projection matrix and set matrix mode to Model/View
glMatrixMode(GL_PROJECTION)
glPopMatrix()
glMatrixMode(GL_MODELVIEW)
glFlush()
hit_records = list(glRenderMode(GL_RENDER))
## print "%d hits" % len(hit_records)
for (near, far, names) in hit_records:
## print "hit record: near, far, names:", near, far, names
# note from testing: near/far are too far apart to give actual depth,
# in spite of the 1-pixel drawing window (presumably they're vertices
# taken from unclipped primitives, not clipped ones).
### REVIEW: this just returns the first candidate object found.
# The clip plane may restrict the set of candidates well enough to
# make sure that's the right one, but this is untested and unreviewed.
# (And it's just my guess that that was Huaicai's intention in
# setting up clipping, since it's not documented. I'm guessing that
# the plane is just behind the hitpoint, but haven't confirmed this.)
# [bruce 080917 comment]
if names:
name = names[-1]
assy = self.assy
obj = assy and assy.object_for_glselect_name(name)
#k should always return an obj
return obj
return None # from ThumbView.select
def leftUp(self, event):
"""
Erase the final rubber band window and do zoom if user indeed draws a
rubber band window.
"""
# bugs 1190, 1818 wware 4/05/2006 - sometimes Qt neglects to call
# leftDown before this
if not hasattr(self, "pWxy") or not hasattr(self, "firstDraw"):
return
cWxy = (event.pos().x(), self.glpane.height - event.pos().y())
zoomX = (abs(cWxy[0] - self.pWxy[0]) + 0.0) / (self.glpane.width + 0.0)
zoomY = (abs(cWxy[1] - self.pWxy[1]) + 0.0) / (self.glpane.height + 0.0)
# The rubber band window size can be larger than that of glpane.
# Limit the zoomFactor to 1.0
zoomFactor = min(max(zoomX, zoomY), 1.0)
# Huaicai: when rubber band window is too small,
# like a double click, a single line rubber band, skip zoom
DELTA = 1.0E-5
if self.pWxy[0] == cWxy[0] or self.pWxy[1] == cWxy[1] \
or zoomFactor < DELTA:
self.command.command_Done()
return
# Erase the last rubber-band window
rbwcolor = self.command.rbwcolor
drawrectangle(self.pStart, self.pPrev, self.glpane.up,
self.glpane.right, rbwcolor)
glFlush()
self.glpane.swapBuffers()
winCenterX = (cWxy[0] + self.pWxy[0]) / 2.0
winCenterY = (cWxy[1] + self.pWxy[1]) / 2.0
winCenterZ = \
glReadPixelsf(int(winCenterX), int(winCenterY), 1, 1,
GL_DEPTH_COMPONENT)
assert winCenterZ[0][0] >= 0.0 and winCenterZ[0][0] <= 1.0
if winCenterZ[0][0] >= GL_FAR_Z: # window center touches nothing
p1 = A(gluUnProject(winCenterX, winCenterY, 0.005))
p2 = A(gluUnProject(winCenterX, winCenterY, 1.0))
los = self.glpane.lineOfSight
k = dot(los, -self.glpane.pov - p1) / dot(los, p2 - p1)
zoomCenter = p1 + k*(p2-p1)
else:
zoomCenter = \
A(gluUnProject(winCenterX, winCenterY, winCenterZ[0][0]))
self.glpane.pov = V(-zoomCenter[0], -zoomCenter[1], -zoomCenter[2])
# The following are 2 ways to do the zoom, the first one
# changes view angles, the 2nd one change viewing distance
# The advantage for the 1st one is model will not be clipped by
# near or back clipping planes, and the rubber band can be
# always shown. The disadvantage: when the view field is too
# small, a selection window may be actually act as a single pick.
# rubber band window will not look as rectangular any more.
#zf = self.glpane.getZoomFactor() # [note: method does not exist]
#zoomFactor = pow(zoomFactor, 0.25)
#zoomFactor *= zf
#self.glpane.setZoomFactor(zoomFactor) # [note: method does not exist]
# Change viewing distance to do zoom. This works better with
# mouse wheel, since both are changing viewing distance, and
# it's not too bad of model being clipped, since the near/far clip
# plane change as scale too.
self.glpane.scale *= zoomFactor
self.command.command_Done()
return
