Modelling Practise II

Currently still working on the car as well as some traditional digital art.
Something that I've always been keen on trying is a motorbike and I'm going to be modelling one (not this tutorial one) for my showreel (for motionmatching).

So far here is the frame I've done;

Just did a quick render with some blinns and FG using a similar lighting rig to my old FYP setup. Basically using grids with lamberts on and FG instead of using lights then having image based lighting on (without actually using it for lighting, just reflections).

I came across a big problem after trying out the Approximation editor (Window>Rendering Editors>Mental Ray> Approximation Editor). Basically used to show your geometry as smoothed out (as if you are pressing 3) without the need to convert to a subd or smooth deformer.

DBN 0.4 error 561001: invalid topology, object will not be tessellated
GAPM 0.4 warn 092001: tessellation empty for object "polySurfaceShape5"

This made the selected geometry (in this case the frame itself) invisible to any Mental Ray renders (but not with Maya Software)

After trying everything franticly (thinking I had not set up my materials correctly or Mental Ray itself) I had a search on some forums and found a fix that worked for me.

Mesh>Cleanup> Select Nonmanifold Geometry

This solved the issue and work resumed as normal. Before I finish my bike I'm going to check the geometry of each piece and make sure this doesn't happen for future renders. I'm glad I found the error now instead of when the end product even though it was quite frustrating and I hope if anyone has this issue themselves it will help them.

This entry was posted on Thursday, 17 September 2009 and is filed under ,,,,,. You can follow any responses to this entry through the RSS 2.0. You can leave a response.

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