def _ChangeMotionMode_(self, drag, spin, auto ):
new_drag = drag
new_auto = auto if not new_drag else False
new_spin = spin if new_auto else False
change = self.__mouse_drag != new_drag or self.__auto_rotate != new_auto or self.__auto_spin != new_spin
if not change:
return
if new_drag and not self.__mouse_drag:
self.__dragStartTime = time()
self.__mouse_drag_angle = 0
self.__mouse_drag_time = 0
if new_auto and not self.__auto_rotate:
self.__rotateStartTime = time()
self.__mouse_drag = new_drag
self.__auto_rotate = new_auto
self.__auto_spin = new_spin
self.__orbit_mat = mat.Multiply(self.__current_orbit_mat, self.__orbit_mat)
self.__current_orbit_mat = mat.IdentityMat44()
self.__model_mat = mat.Multiply(self.__current_model_mat, self.__model_mat)
self.__current_model_mat = mat.IdentityMat44()
return
def OnDraw(self):
# set up projection matrix
prjMat = self.Perspective()
# set up view matrix
viewMat = self.LookAt()
# set up light source
lightSourceBuffer.BindDataFloat(
b'u_lightSource.dir',
mat.TransformVec4([-1.0, -1.0, -5.0, 0.0], viewMat))
# set up icosahedron model matrix
modelMat = mat.IdentityMat44()
modelMat = self.AutoModelMatrix()
#modelMat = mat.RotateX( modelMat, self.CalcAng( 13.0 ) )
#modelMat = mat.RotateY( modelMat, self.CalcAng( 17.0 ) )
# set up attributes and shader program
glEnable(GL_DEPTH_TEST)
glClearColor(1, 1, 1, 0)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
progTess.Use()
progTess.SetUniformM44(b"u_projectionMat44", prjMat)
lightSourceBuffer.BindToTarget()
# draw icosahedron
icoMaterialBuffer.BindToTarget()
modelViewMat = mat.Multiply(viewMat, modelMat)
progTess.SetUniformM44(b"u_modelViewMat44", modelViewMat)
progTess.SetUniformM33(b"u_normalMat33", mat.ToMat33(modelViewMat))
icoVAO.Draw()
def OnDraw(self):
# set up attributes and shader program
fbX.Bind()
glEnable(GL_DEPTH_TEST)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
progDraw.Use()
progDraw.SetUniform(b"u_projectionMat44", self.Perspective())
viewMat = self.LookAt()
modelMat = mat.IdentityMat44()
modelMat = self.AutoModelMatrix()
#modelMat = mat.RotateX( modelMat, self.CalcAng( 13.0 ) )
#modelMat = mat.RotateY( modelMat, self.CalcAng( 17.0 ) )
progDraw.SetUniform(b"u_modelViewMat44",
mat.Multiply(viewMat, modelMat))
progDraw.SetUniform(b"u_glow", 3.0)
objVAO.Draw()
sigma = 0.8
blurWidth = 20
# blur X
fbX.UnBind()
fbY.Bind()
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
texUnitAttach0 = 1
fbX.BindTextures([texUnitAttach0])
progBlurX.Use()
progBlurX.SetUniform(b"u_textureCol", texUnitAttach0)
progBlurX.SetUniform(b"u_textureSize", self.VPSize())
progBlurX.SetUniform(b"u_sigma", sigma)
progBlurX.SetUniform(b"u_width", blurWidth)
# TODO SetUniforms( { } )
# draw screen sapce
quadVAO.Draw()
# blur Y
fbY.UnBind()
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
texUnitAttach0 = 2
fbY.BindTextures([texUnitAttach0])
progBlurY.Use()
progBlurY.SetUniform(b"u_textureCol", texUnitAttach0)
progBlurY.SetUniform(b"u_textureSize", self.VPSize())
progBlurY.SetUniform(b"u_sigma", sigma)
progBlurY.SetUniform(b"u_width", blurWidth)
# draw screen sapce
quadVAO.Draw()
def AutoModelMatrix( self ):
if self.__auto_rotate:
return mat.Multiply(self.__current_model_mat, self.__model_mat)
return self.__model_mat
def OrbitMatrix( self ):
if self.__mouse_drag or (self.__auto_rotate and self.__auto_spin):
return mat.Multiply(self.__current_orbit_mat, self.__orbit_mat)
return self.__orbit_mat
def LookAt(self): return mat.Multiply(self._camera.LookAt(), self.OrbitMatrix())
