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(Used as technical notes for my own troubleshooting and others running into the same problem) (scene #170.05, testing LowFlyingCamera, Object strokeDeadWillow1Freaky2_TTH20093))

The issue: When the paint effects are drawn, they look fine from one frame to next with a still camera, but when a moving camera goes by the texture/shading, slides up the tree.

Environment and Assumptions:

• Maya 2009 64Bit
• Rendering in Maya Software
• Production Level Rendering and Anti-Aliasing

Steps and Results:

• Removed shadows - is this a shadow effect (didn’t solve problem)
• Removed texture applied (didn’t solve problem)
• Made Shading> Color 1 and Tube Shading>Color2 same color  (didn’t solve problem)
• Conver t to polygons - While this may work and is not a viable workaround for me, it is good to know (problem does not exist on polys)
• Turned Translucence from 0.2 to 0 (didn’t solve problem)
• Set Twist>ForwardTwist=off (didn’t solve problem)
• Twist =.446 –> 0 (didn’t solve problem)
• Twist Rate =0.289 –> 0 (didn’t solve problem)
• Twist Rand =0.421 –> 0.078 (didn’t solve problem)
• Tip Fade = 0.100 –> 0 (didn’t solve problem)
• Shading>Transparency 1= 0  –> about 10% (didn’t solve problem)
• Tube Shading> Tube Transparency 2= 0  –> abuot 20% (didn’t solve problem)
• Tube Shading>Tip Fade=0.1 –> 0 (didn’t solve problem)
• Map Opacity=0 –> 1 (didn’t solve problem)
• Map Method=Full View   –> Tube2D (with additional new settings) (SOLVED IT!) A little Blur Mult and Smear is needed as well.

Apparently the full view texture mapping was causing the shader/texture to slide as the camera moved. The full view texturing is used to map the texture to the paint effect from the view of the camera, as paint effects don’t have UV’s to elegantly attach a texture. So, when the camera moves, the texture is re-sized to fit again. 2d and 3d map methods work well for my fly through animation.