So i added a prerender callback to maya using this
cbid = OpenMayaUI.MUiMessage.add3dViewPreRenderMsgCallback ("modelPanel1",
ViewportCallback, self)
and inside i am trying to draw some points.
it works fine except for one thing
i obtain my matrices using this:
projection = OpenMaya.MMatrix()
modelView = OpenMaya.MMatrix()
view.projectionMatrix(projection)
view.modelViewMatrix(modelView)
and i do indeed get the matrices that i want but the problem occurs when i
rotate my viewport. the modelview matrix doesn't seem to get updated properly.
if i try to move an object in the scene, the matrix receives the update
what's going on here? is there a way to force the update? or should i be
querying the matrices from somewhere else?
i tried to obtain them directly from opengl and i just received an identity
matrix so i'm guessing that's no good either.
any info would be appreciated
cheers
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