def __init__(self,
camera=None,
light=None,
shader=None,
texture=None,
radius=0.0,
x=0.0,
y=0.0,
z=1000,
vx=0.0,
vy=0.0,
decay=0.001):
super(ScissorBall, self).__init__(camera=camera,
light=light,
shader=shader,
texture=texture,
radius=radius,
x=x,
y=y,
z=z,
vx=vx,
vy=vy,
decay=decay)
self.w = int(2.0 * radius)
self.h = int(2.0 * radius)
self.or_x = Display.INSTANCE.width / 2.0 # coord origin
self.or_y = Display.INSTANCE.height / 2.0
opengles.glEnable(GL_SCISSOR_TEST)
def start_capture(self, clear=True):
""" after calling this method all object.draw()s will rendered
to this texture and not appear on the display. Large objects
will obviously take a while to draw and re-draw
"""
super(PostProcess, self)._start(clear=clear)
from pi3d.Display import Display
xx = int(Display.INSTANCE.width / 2.0 * (1.0 - self.scale))
yy = int(Display.INSTANCE.height / 2.0 * (1.0 - self.scale))
ww = int(Display.INSTANCE.width * self.scale)
hh = int(Display.INSTANCE.height * self.scale)
opengles.glEnable(GL_SCISSOR_TEST)
opengles.glScissor(GLint(xx), GLint(yy), GLsizei(ww), GLsizei(hh))
def draw(self, shape):
""" draw the shape using the clashtest Shader
Arguments:
*shape*
Shape object that will be drawn
"""
if not self.s_flg:
opengles.glEnable(GL_SCISSOR_TEST)
opengles.glScissor(GLint(0), GLint(self.y0), GLsizei(self.ix),
GLsizei(1))
self.s_flg = True
shape.draw(shader=self.shader)
def create_display(self,
x=0,
y=0,
w=0,
h=0,
depth=24,
samples=4,
layer=0,
display_config=DISPLAY_CONFIG_DEFAULT,
window_title='',
use_glx=False):
self.use_glx = use_glx and (
X_WINDOW and hasattr(glx, 'glXChooseFBConfig')
) # only use glx if x11 window and glx available
self.display_config = display_config
self.window_title = window_title.encode()
if not self.use_glx:
self.display = openegl.eglGetDisplay(EGL_DEFAULT_DISPLAY)
assert self.display != EGL_NO_DISPLAY and self.display is not None
for smpl in [
samples, 0
]: # try with samples first but ANGLE dll can't cope so drop to 0 for windows
r = openegl.eglInitialize(self.display, None, None)
attribute_list = (EGLint * 19)(
EGL_RED_SIZE, 8, EGL_GREEN_SIZE, 8, EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, depth, EGL_ALPHA_SIZE, 8, EGL_BUFFER_SIZE,
32, EGL_SAMPLES, smpl, EGL_STENCIL_SIZE, 8,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT, EGL_NONE)
numconfig = EGLint(0)
poss_configs = (EGLConfig * 5)(*(EGLConfig()
for _ in range(5)))
r = openegl.eglChooseConfig(self.display, attribute_list,
poss_configs,
EGLint(len(poss_configs)),
byref(numconfig))
context_attribs = (EGLint * 3)(EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE)
if numconfig.value > 0:
self.config = poss_configs[0]
self.context = openegl.eglCreateContext(
self.display, self.config, EGL_NO_CONTEXT,
context_attribs)
if self.context != EGL_NO_CONTEXT:
break
assert self.context != EGL_NO_CONTEXT and self.context is not None
self.create_surface(x, y, w, h, layer)
opengles.glDepthRangef(GLfloat(0.0), GLfloat(1.0))
opengles.glClearColor(GLfloat(0.3), GLfloat(0.3), GLfloat(0.7),
GLfloat(1.0))
opengles.glBindFramebuffer(GL_FRAMEBUFFER, GLuint(0))
# get GL v GLES and version num for shader translation
version = opengles.glGetString(GL_VERSION)
version = ctypes.cast(version, c_char_p).value
if b"ES" in version:
for s in version.split():
if b'.' in s:
self.gl_id = b"GLES" + s.split(b'.')[0]
break
#Setup default hints
opengles.glEnable(GL_CULL_FACE)
opengles.glCullFace(GL_BACK)
opengles.glFrontFace(GL_CW)
opengles.glEnable(GL_DEPTH_TEST)
if b"GLES" not in self.gl_id:
if b"2" in self.gl_id:
opengles.glEnable(GL_VERTEX_PROGRAM_POINT_SIZE)
else:
opengles.glEnable(GL_PROGRAM_POINT_SIZE) # only in > GL3
opengles.glEnable(GL_POINT_SPRITE)
opengles.glDepthFunc(GL_LESS)
opengles.glDepthMask(GLboolean(True))
opengles.glHint(GL_GENERATE_MIPMAP_HINT, GL_NICEST)
opengles.glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, 1,
GL_ONE_MINUS_SRC_ALPHA)
opengles.glColorMask(GLboolean(True), GLboolean(True), GLboolean(True),
GLboolean(False))
#opengles.glEnableClientState(GL_VERTEX_ARRAY)
#opengles.glEnableClientState(GL_NORMAL_ARRAY)
self.max_texture_size = GLint(0)
opengles.glGetIntegerv(GL_MAX_TEXTURE_SIZE,
byref(self.max_texture_size))
self.active = True
def draw(self, shape=None, M=None, unif=None, shader=None,
textures=None, ntl=None, shny=None, fullset=True):
"""Draw this Buffer, called by the parent Shape.draw()
Keyword arguments:
*shape*
Shape object this Buffer belongs to, has to be passed at draw to avoid
circular reference
*shader*
Shader object
*textures*
array of Texture objects
*ntl*
multiple for tiling normal map which can be less than or greater
than 1.0. 0.0 disables the normal mapping, float
*shiny*
how strong to make the reflection 0.0 to 1.0, float
"""
self.load_opengl()
shader = shader or self.shader or shape.shader or Shader.instance()
shader.use()
opengles.glUniformMatrix4fv(shader.unif_modelviewmatrix, GLsizei(3),
GLboolean(0), M.ctypes.data)
opengles.glUniform3fv(shader.unif_unif, GLsizei(20), unif)
textures = textures or self.textures
if ntl is not None:
self.unib[0] = ntl
if shny is not None:
self.unib[1] = shny
self._select()
opengles.glVertexAttribPointer(shader.attr_vertex, GLint(3), GL_FLOAT, GLboolean(0), self.N_BYTES, 0)
opengles.glEnableVertexAttribArray(shader.attr_vertex)
if self.N_BYTES > 12:
opengles.glVertexAttribPointer(shader.attr_normal, GLint(3), GL_FLOAT, GLboolean(0), self.N_BYTES, 12)
opengles.glEnableVertexAttribArray(shader.attr_normal)
if self.N_BYTES > 24:
opengles.glVertexAttribPointer(shader.attr_texcoord, GLint(2), GL_FLOAT, GLboolean(0), self.N_BYTES, 24)
opengles.glEnableVertexAttribArray(shader.attr_texcoord)
opengles.glDisable(GL_BLEND)
self.unib[2] = 0.6
for t, texture in enumerate(textures):
if (self.disp.last_textures[t] != texture or self.disp.last_shader != shader or
self.disp.offscreen_tex): # very slight speed increase for sprites
opengles.glActiveTexture(GL_TEXTURE0 + t)
assert texture.tex(), 'There was an empty texture in your Buffer.'
opengles.glBindTexture(GL_TEXTURE_2D, texture.tex())
opengles.glUniform1i(shader.unif_tex[t], GLint(t))
self.disp.last_textures[t] = texture
if texture.blend:
# i.e. if any of the textures set to blend then all will for this shader.
self.unib[2] = 0.05
if self.unib[2] != 0.6 or shape.unif[13] < 1.0 or shape.unif[14] < 1.0:
#use unib[2] as flag to indicate if any Textures to be blended
#needs to be done outside for..textures so materials can be transparent
opengles.glEnable(GL_BLEND)
self.unib[2] = 0.05
self.disp.last_shader = shader
opengles.glUniform3fv(shader.unif_unib, GLsizei(5), self.unib)
opengles.glEnable(GL_DEPTH_TEST) # TODO find somewhere more efficient to do this
opengles.glDrawElements(self.draw_method, GLsizei(self.ntris * 3), GL_UNSIGNED_SHORT, 0)
def draw(self, shape=None, M=None, unif=None, shader=None,
textures=None, ntl=None, shny=None, fullset=True):
"""Draw this Buffer, called by the parent Shape.draw()
Keyword arguments:
*shape*
Shape object this Buffer belongs to, has to be passed at draw to avoid
circular reference
*shader*
Shader object
*textures*
array of Texture objects
*ntl*
multiple for tiling normal map which can be less than or greater
than 1.0. 0.0 disables the normal mapping, float
*shiny*
how strong to make the reflection 0.0 to 1.0, float
"""
self.load_opengl()
shader = shader or self.shader or shape.shader or Shader.instance()
shader.use()
opengles.glUniformMatrix4fv(shader.unif_modelviewmatrix, 3,
ctypes.c_ubyte(0), M.ctypes.data)
opengles.glUniform3fv(shader.unif_unif, 20, unif)
textures = textures or self.textures
if ntl is not None:
self.unib[0] = ntl
if shny is not None:
self.unib[1] = shny
self._select()
opengles.glVertexAttribPointer(shader.attr_vertex, 3, GL_FLOAT, 0, self.N_BYTES, 0)
opengles.glEnableVertexAttribArray(shader.attr_vertex)
if self.N_BYTES > 12:
opengles.glVertexAttribPointer(shader.attr_normal, 3, GL_FLOAT, 0, self.N_BYTES, 12)
opengles.glEnableVertexAttribArray(shader.attr_normal)
if self.N_BYTES > 24:
opengles.glVertexAttribPointer(shader.attr_texcoord, 2, GL_FLOAT, 0, self.N_BYTES, 24)
opengles.glEnableVertexAttribArray(shader.attr_texcoord)
opengles.glDisable(GL_BLEND)
self.unib[2] = 0.6
for t, texture in enumerate(textures):
if (self.disp.last_textures[t] != texture or self.disp.last_shader != shader or
self.disp.offscreen_tex): # very slight speed increase for sprites
opengles.glActiveTexture(GL_TEXTURE0 + t)
assert texture.tex(), 'There was an empty texture in your Buffer.'
opengles.glBindTexture(GL_TEXTURE_2D, texture.tex())
opengles.glUniform1i(shader.unif_tex[t], t)
self.disp.last_textures[t] = texture
if texture.blend:
# i.e. if any of the textures set to blend then all will for this shader.
self.unib[2] = 0.05
if self.unib[2] != 0.6 or shape.unif[13] < 1.0 or shape.unif[14] < 1.0:
#use unib[2] as flag to indicate if any Textures to be blended
#needs to be done outside for..textures so materials can be transparent
opengles.glEnable(GL_BLEND)
self.unib[2] = 0.05
self.disp.last_shader = shader
opengles.glUniform3fv(shader.unif_unib, 5, self.unib)
opengles.glEnable(GL_DEPTH_TEST) # TODO find somewhere more efficient to do this
opengles.glDrawElements(self.draw_method, self.ntris * 3, GL_UNSIGNED_SHORT, 0)
