def __init__(self, shaderGlobals):
"""
@param shaderGlobals: the instance of class ShaderGlobals
we will be associated with.
"""
super(GLCylinderBuffer, self).__init__(shaderGlobals)
# Per-vertex attribute hunk VBOs that are specific to the cylinder
# shader. Combine endpoints and radii into two vec4's. It would be
# nicer to use a twice-4-element mat2x4 attribute VBO, but it would have
# to be sent as two attribute slots anyway, because OpenGL only allows
# "size" to be 1 to 4 in glVertexAttribPointer.
shader = self.shader
self.endptRad0Hunks = HunkBuffer(shader, "endpt_rad_0", self.nVertices,
4)
self.endptRad1Hunks = HunkBuffer(shader, "endpt_rad_1", self.nVertices,
4)
self.hunkBuffers += [self.endptRad0Hunks, self.endptRad1Hunks]
return
def __init__(self, shaderGlobals):
"""
@param shaderGlobals: the instance of class ShaderGlobals
we will be associated with.
"""
super(GLSphereBuffer, self).__init__(shaderGlobals)
# Per-vertex attribute hunk VBOs that are specific to the sphere shader.
# Combine centers and radii into a 4-element vec4 attribute VBO. (Each
# attribute slot takes 4 floats, no matter how many of them are used.)
shader = self.shader
self.ctrRadHunks = HunkBuffer(shader, "center_rad", self.nVertices, 4)
self.hunkBuffers += [self.ctrRadHunks]
return
