class Renderer(Widget):
texture = ObjectProperty(None, allownone=True)
def __init__(self, **kwargs):
#self.canvas = RenderContext(compute_normal_mat=True)
#self.canvas.shader.source = resource_find('simple.glsl')
self.canvas = Canvas()
self.scene = ObjFileLoader(resource_find("testnurbs.obj"))
self.meshes = []
with self.canvas:
self.fbo = Fbo(size=self.size, with_depthbuffer=True, compute_normal_mat=True, clear_color=(0., 0., 0., 0.))
self.viewport = Rectangle(size=self.size, pos=self.pos)
self.fbo.shader.source = resource_find('simple.glsl')
#self.texture = self.fbo.texture
super(Renderer, self).__init__(**kwargs)
with self.fbo:
#ClearBuffers(clear_depth=True)
self.cb = Callback(self.setup_gl_context)
PushMatrix()
self.setup_scene()
PopMatrix()
self.cb = Callback(self.reset_gl_context)
Clock.schedule_interval(self.update_scene, 1 / 60.)
self._touches = []
def on_size(self, instance, value):
self.fbo.size = value
self.viewport.texture = self.fbo.texture
self.viewport.size = value
self.update_glsl()
def on_pos(self, instance, value):
self.viewport.pos = value
def on_texture(self, instance, value):
self.viewport.texture = value
def setup_gl_context(self, *args):
#clear_buffer
glEnable(GL_DEPTH_TEST)
self.fbo.clear_buffer()
#glDepthMask(GL_FALSE);
def reset_gl_context(self, *args):
glDisable(GL_DEPTH_TEST)
def update_glsl(self, *largs):
asp = self.width / float(self.height)
proj = Matrix().view_clip(-asp, asp, -1, 1, 1, 100, 1)
self.fbo['projection_mat'] = proj
def setup_scene(self):
Color(1, 1, 1, 0)
PushMatrix()
Translate(0, 0, -5)
# This Kivy native Rotation is used just for
# enabling rotation scene like trackball
self.rotx = Rotate(0, 1, 0, 0)
self.roty = Rotate(-120, 0, 1, 0) # here just rotate scene for best view
self.scale = Scale(1)
UpdateNormalMatrix()
self.draw_elements()
PopMatrix()
def draw_elements(self):
""" Draw separately all objects on the scene
to setup separate rotation for each object
"""
def _draw_element(m):
Mesh(
vertices=m.vertices,
indices=m.indices,
fmt=m.vertex_format,
mode='triangles',
)
def _set_color(*color, **kw):
id_color = kw.pop('id_color', (0, 0, 0))
return ChangeState(
Kd=color,
Ka=color,
Ks=(.3, .3, .3),
Tr=1., Ns=1.,
intensity=1.,
id_color=[i / 255. for i in id_color],
)
# Draw sphere in the center
sphere = self.scene.objects['Sphere']
_set_color(0.7, 0.7, 0., id_color=(255, 255, 0))
_draw_element(sphere)
# Then draw other elements and totate it in different axis
pyramid = self.scene.objects['Pyramid']
PushMatrix()
self.pyramid_rot = Rotate(0, 0, 0, 1)
_set_color(0., 0., .7, id_color=(0., 0., 255))
_draw_element(pyramid)
PopMatrix()
box = self.scene.objects['Box']
PushMatrix()
self.box_rot = Rotate(0, 0, 1, 0)
_set_color(.7, 0., 0., id_color=(255, 0., 0))
_draw_element(box)
PopMatrix()
cylinder = self.scene.objects['Cylinder']
PushMatrix()
self.cylinder_rot = Rotate(0, 1, 0, 0)
_set_color(0.0, .7, 0., id_color=(0., 255, 0))
_draw_element(cylinder)
PopMatrix()
def update_scene(self, *largs):
self.pyramid_rot.angle += 0.5
self.box_rot.angle += 0.5
self.cylinder_rot.angle += 0.5
# =============== All stuff after is for trackball implementation =============
def define_rotate_angle(self, touch):
x_angle = (touch.dx/self.width)*360
y_angle = -1*(touch.dy/self.height)*360
return x_angle, y_angle
def on_touch_down(self, touch):
self._touch = touch
touch.grab(self)
self._touches.append(touch)
def on_touch_up(self, touch):
touch.ungrab(self)
self._touches.remove(touch)
self.fbo.shader.source = 'select_mode.glsl'
self.fbo.ask_update()
self.fbo.draw()
print(self.fbo.get_pixel_color(touch.x, touch.y))
self.fbo.shader.source = 'simple.glsl'
self.fbo.ask_update()
self.fbo.draw()
def on_touch_move(self, touch):
self.update_glsl()
if touch in self._touches and touch.grab_current == self:
if len(self._touches) == 1:
# here do just rotation
ax, ay = self.define_rotate_angle(touch)
self.roty.angle += ax
self.rotx.angle += ay
elif len(self._touches) == 2: # scaling here
#use two touches to determine do we need scal
touch1, touch2 = self._touches
old_pos1 = (touch1.x - touch1.dx, touch1.y - touch1.dy)
old_pos2 = (touch2.x - touch2.dx, touch2.y - touch2.dy)
old_dx = old_pos1[0] - old_pos2[0]
old_dy = old_pos1[1] - old_pos2[1]
old_distance = (old_dx*old_dx + old_dy*old_dy)
Logger.debug('Old distance: %s' % old_distance)
new_dx = touch1.x - touch2.x
new_dy = touch1.y - touch2.y
new_distance = (new_dx*new_dx + new_dy*new_dy)
Logger.debug('New distance: %s' % new_distance)
SCALE_FACTOR = 0.01
if new_distance > old_distance:
scale = SCALE_FACTOR
Logger.debug('Scale up')
elif new_distance == old_distance:
scale = 0
else:
scale = -1*SCALE_FACTOR
Logger.debug('Scale down')
xyz = self.scale.xyz
if scale:
self.scale.xyz = tuple(p + scale for p in xyz)
class Renderer(Widget):
texture = ObjectProperty(None, allownone=True)
def __init__(self, **kwargs):
#self.canvas = RenderContext(compute_normal_mat=True)
#self.canvas.shader.source = resource_find('simple.glsl')
self.canvas = Canvas()
self.scene = ObjFileLoader(resource_find("testnurbs.obj"))
self.meshes = []
with self.canvas:
self.fbo = Fbo(size=self.size, with_depthbuffer=True, compute_normal_mat=True, clear_color=(0., 0., 0., 0.))
self.viewport = Rectangle(size=self.size, pos=self.pos)
self.fbo.shader.source = resource_find('simple.glsl')
#self.texture = self.fbo.texture
super(Renderer, self).__init__(**kwargs)
with self.fbo:
#ClearBuffers(clear_depth=True)
self.cb = Callback(self.setup_gl_context)
PushMatrix()
self.setup_scene()
PopMatrix()
self.cb = Callback(self.reset_gl_context)
Clock.schedule_interval(self.update_scene, 1 / 60.)
self._touches = []
def on_size(self, instance, value):
self.fbo.size = value
self.viewport.texture = self.fbo.texture
self.viewport.size = value
self.update_glsl()
def on_pos(self, instance, value):
self.viewport.pos = value
def on_texture(self, instance, value):
self.viewport.texture = value
def setup_gl_context(self, *args):
#clear_buffer
glEnable(GL_DEPTH_TEST)
self.fbo.clear_buffer()
#glDepthMask(GL_FALSE);
def reset_gl_context(self, *args):
glDisable(GL_DEPTH_TEST)
def update_glsl(self, *largs):
asp = self.width / float(self.height)
proj = Matrix().view_clip(-asp, asp, -1, 1, 1, 100, 1)
self.fbo['projection_mat'] = proj
def setup_scene(self):
Color(1, 1, 1, 0)
PushMatrix()
Translate(0, 0, -5)
# This Kivy native Rotation is used just for
# enabling rotation scene like trackball
self.rotx = Rotate(0, 1, 0, 0)
self.roty = Rotate(-120, 0, 1, 0) # here just rotate scene for best view
self.scale = Scale(1)
UpdateNormalMatrix()
self.draw_elements()
PopMatrix()
def draw_elements(self):
""" Draw separately all objects on the scene
to setup separate rotation for each object
"""
def _draw_element(m):
Mesh(
vertices=m.vertices,
indices=m.indices,
fmt=m.vertex_format,
mode='triangles',
)
def _set_color(*color, **kw):
id_color = kw.pop('id_color', (0, 0, 0))
return ChangeState(
Kd=color,
Ka=color,
Ks=(.3, .3, .3),
Tr=1., Ns=1.,
intensity=1.,
id_color=[i / 255. for i in id_color],
)
# Draw sphere in the center
sphere = self.scene.objects['Sphere']
_set_color(0.7, 0.7, 0., id_color=(255, 255, 0))
_draw_element(sphere)
# Then draw other elements and totate it in different axis
pyramid = self.scene.objects['Pyramid']
PushMatrix()
self.pyramid_rot = Rotate(0, 0, 0, 1)
_set_color(0., 0., .7, id_color=(0., 0., 255))
_draw_element(pyramid)
PopMatrix()
box = self.scene.objects['Box']
PushMatrix()
self.box_rot = Rotate(0, 0, 1, 0)
_set_color(.7, 0., 0., id_color=(255, 0., 0))
_draw_element(box)
PopMatrix()
cylinder = self.scene.objects['Cylinder']
PushMatrix()
self.cylinder_rot = Rotate(0, 1, 0, 0)
_set_color(0.0, .7, 0., id_color=(0., 255, 0))
_draw_element(cylinder)
PopMatrix()
def update_scene(self, *largs):
self.pyramid_rot.angle += 0.5
self.box_rot.angle += 0.5
self.cylinder_rot.angle += 0.5
# =============== All stuff after is for trackball implementation =============
def define_rotate_angle(self, touch):
x_angle = (touch.dx/self.width)*360
y_angle = -1*(touch.dy/self.height)*360
return x_angle, y_angle
def on_touch_down(self, touch):
self._touch = touch
touch.grab(self)
self._touches.append(touch)
def on_touch_up(self, touch):
touch.ungrab(self)
self._touches.remove(touch)
self.fbo.shader.source = 'select_mode.glsl'
self.fbo.ask_update()
self.fbo.draw()
print self.fbo.get_pixel_color(touch.x, touch.y)
self.fbo.shader.source = 'simple.glsl'
self.fbo.ask_update()
self.fbo.draw()
def on_touch_move(self, touch):
self.update_glsl()
if touch in self._touches and touch.grab_current == self:
if len(self._touches) == 1:
# here do just rotation
ax, ay = self.define_rotate_angle(touch)
self.roty.angle += ax
self.rotx.angle += ay
elif len(self._touches) == 2: # scaling here
#use two touches to determine do we need scal
touch1, touch2 = self._touches
old_pos1 = (touch1.x - touch1.dx, touch1.y - touch1.dy)
old_pos2 = (touch2.x - touch2.dx, touch2.y - touch2.dy)
old_dx = old_pos1[0] - old_pos2[0]
old_dy = old_pos1[1] - old_pos2[1]
old_distance = (old_dx*old_dx + old_dy*old_dy)
Logger.debug('Old distance: %s' % old_distance)
new_dx = touch1.x - touch2.x
new_dy = touch1.y - touch2.y
new_distance = (new_dx*new_dx + new_dy*new_dy)
Logger.debug('New distance: %s' % new_distance)
SCALE_FACTOR = 0.01
if new_distance > old_distance:
scale = SCALE_FACTOR
Logger.debug('Scale up')
elif new_distance == old_distance:
scale = 0
else:
scale = -1*SCALE_FACTOR
Logger.debug('Scale down')
xyz = self.scale.xyz
if scale:
self.scale.xyz = tuple(p + scale for p in xyz)
class NSpect(Widget):
texture = ObjectProperty(None, allownone=True)
def __init__(self, **kwargs):
LOP, dm = initFiles()
#self.canvas = RenderContext(compute_normal_mat=True)
#self.canvas.shader.source = resource_find('simple.glsl')
self.canvas = Canvas()
self.scene = ObjFileLoader(resource_find("testnurbs.obj"))
self.LOP = LOP
self.dm = dm
self.meshes = []
self.panCamera = False # KEITH EDIT
self.pause = True # KEITH EDIT
with self.canvas:
self.fbo = Fbo(size=self.size, with_depthbuffer=True, compute_normal_mat=True, clear_color=(0., 0., 0., 0.))
self.viewport = Rectangle(size=self.size, pos=self.pos)
self.fbo.shader.source = resource_find('simple.glsl')
#self.texture = self.fbo.texture
# *&Y*&Y*&YH*&Y*&Y*&Y*Y&*
# Keith: This allows keyboard interaction
# http://stackoverflow.com/questions/22137786/
self._keyboard = Window.request_keyboard(None, self)
if not self._keyboard:
return
self._keyboard.bind(on_key_down=self.on_keyboard_down)
# *&Y*&Y*&YH*&Y*&Y*&Y*Y&*
super(NSpect, self).__init__(**kwargs)
with self.fbo:
#ClearBuffers(clear_depth=True)
self.cb = Callback(self.setup_gl_context)
PushMatrix()
self.setup_scene(self.LOP, dm)
PopMatrix()
self.cb = Callback(self.reset_gl_context)
Clock.schedule_interval(self.update_scene, 1 / 60.)
self._touches = []
def on_size(self, instance, value):
self.fbo.size = value
self.viewport.texture = self.fbo.texture
self.viewport.size = value
self.update_glsl()
def on_pos(self, instance, value):
self.viewport.pos = value
def on_texture(self, instance, value):
self.viewport.texture = value
def setup_gl_context(self, *args):
#clear_buffer
glEnable(GL_DEPTH_TEST)
self.fbo.clear_buffer()
#glDepthMask(GL_FALSE);
def reset_gl_context(self, *args):
glDisable(GL_DEPTH_TEST)
def update_glsl(self, *largs):
asp = self.width / float(self.height)
proj = Matrix().view_clip(-asp, asp, -1, 1, 1, 100, 1)
self.fbo['projection_mat'] = proj
def setup_scene(self, LOP, dm):
Color(1, 1, 1, 0)
PushMatrix()
Translate(0, 0, -5)
# This Kivy native Rotation is used just for
# enabling rotation scene like trackball
self.rotx = Rotate(0, 1, 0, 0)
self.roty = Rotate(-120, 0, 1, 0) # here just rotate scene for best view
self.scale = Scale(1)
UpdateNormalMatrix()
self.draw_elements(LOP, dm)
PopMatrix()
def draw_elements(self, LOP, dm):
""" Draw separately all objects on the scene
to setup separate rotation for each object
"""
def _draw_element(m):
Mesh(
vertices=m.vertices,
indices=m.indices,
fmt=m.vertex_format,
mode='triangles',
)
def _set_color(*color, **kw):
id_color = kw.pop('id_color', (0, 0, 0))
return ChangeState(
Kd=color,
Ka=color,
Ks=(.3, .3, .3),
Tr=1., Ns=1.,
intensity=1.,
id_color=[i / 255. for i in id_color],
)
def drawPoints():
print self.scene.objects
for i in range(len(self.LOP)):
PushMatrix()
point = self.LOP[i]
point.shape = self.scene.objects['Sphere']
point.color = _set_color(i/10., (i+1)/10., 0., id_color=(int(255/(1+i)), int(255/(1+i)), 255))
point.shape.scale = Scale((i+1)/10.0,(i+1)/10.0,(i+1)/10.0)
self.LOP[i] = point
print point.shape
_draw_element(point.shape)
point.shape.scale.origin = (point.loc[0],point.loc[1],point.loc[2])
PopMatrix()
drawPoints()
def update_scene(self, *largs):
def randLoc(point):
newLoc = (0.1*random.random(),0.1*random.random(),0.1*random.random())
oldLoc = point.shape.scale.origin
newLoc = ( newLoc[0]-0.05+oldLoc[0], newLoc[1]-0.05+oldLoc[1], newLoc[2]-0.05+oldLoc[2] )
return newLoc
def updateLocs(self):
for i in range(len(self.LOP)):
point = self.LOP[i]
point.shape.scale.origin = randLoc(point)
if not self.pause:
updateLocs(self)
pass
# =============== All stuff after is for trackball implementation =============
def moveA(self):
pass
def moveB(self):
pass
def define_rotate_angle(self, touch):
x_angle = (touch.dx/self.width)*360
y_angle = -1*(touch.dy/self.height)*360
return x_angle, y_angle
def on_touch_down(self, touch):
self._touch = touch
touch.grab(self)
self._touches.append(touch)
def on_touch_up(self, touch):
touch.ungrab(self)
self._touches.remove(touch)
self.fbo.shader.source = 'select_mode.glsl'
self.fbo.ask_update()
self.fbo.draw()
print self.fbo.get_pixel_color(touch.x, touch.y)
self.fbo.shader.source = 'simple.glsl'
self.fbo.ask_update()
self.fbo.draw()
# *O(U(U())(*U(*(******************
# Keith: This allows keyboard interaction
def on_keyboard_down(self, keyboard, keycode, text, modifiers):
if keycode[1] == 'left':
if self.panCamera == True:
self.x -= 10
else:
self.roty.angle += 10
elif keycode[1] == 'right':
if self.panCamera == True:
self.x += 10
else:
self.roty.angle -= 10
if keycode[1] == 'up':
if self.panCamera == True:
self.y += 10
else:
self.rotx.angle += 10
elif keycode[1] == 'down':
if self.panCamera == True:
self.y -= 10
else:
self.rotx.angle -= 10
elif keycode[1] == 'i':
self.update_glsl()
SCALE_FACTOR = 0.01
scale = SCALE_FACTOR
Logger.debug('Scale up')
xyz = self.scale.xyz
if scale:
self.scale.xyz = tuple(p + scale for p in xyz)
elif keycode[1] == 'o':
self.update_glsl()
SCALE_FACTOR = 0.01
scale = SCALE_FACTOR
Logger.debug('Scale up')
xyz = self.scale.xyz
if scale:
temp = tuple(p - scale for p in xyz)
# Prevent the collection from having a negative size
if temp[0] > 0:
self.scale.xyz = temp
elif keycode[1] == 't':
self.panCamera = not self.panCamera
elif keycode[1] == 'p':
self.pause = not self.pause
if not self.pause:
print "Playing"
else:
print "Paused"
def on_touch_move(self, touch):
self.update_glsl()
if touch in self._touches and touch.grab_current == self:
if len(self._touches) == 1:
# here do just rotation
ax, ay = self.define_rotate_angle(touch)
self.roty.angle += ax
self.rotx.angle += ay
elif len(self._touches) == 2: # scaling here
#use two touches to determine do we need scal
touch1, touch2 = self._touches
old_pos1 = (touch1.x - touch1.dx, touch1.y - touch1.dy)
old_pos2 = (touch2.x - touch2.dx, touch2.y - touch2.dy)
old_dx = old_pos1[0] - old_pos2[0]
old_dy = old_pos1[1] - old_pos2[1]
old_distance = (old_dx*old_dx + old_dy*old_dy)
Logger.debug('Old distance: %s' % old_distance)
new_dx = touch1.x - touch2.x
new_dy = touch1.y - touch2.y
new_distance = (new_dx*new_dx + new_dy*new_dy)
Logger.debug('New distance: %s' % new_distance)
SCALE_FACTOR = 0.01
if new_distance > old_distance:
scale = SCALE_FACTOR
Logger.debug('Scale up')
elif new_distance == old_distance:
scale = 0
else:
scale = -1*SCALE_FACTOR
Logger.debug('Scale down')
xyz = self.scale.xyz
if scale:
self.scale.xyz = tuple(p + scale for p in xyz)
