On Fri, 4 Apr 2008 09:13:52 -0700 (PDT), x_kelvin <x_kelvin@[EMAIL PROTECTED]
> wrote:
>I creat a maya scene and want to render the OCC layer. I create the
>occlusion layer from the presets. I find that the scene render
>correctly if the scene is open entironment or outdoor, but it isn't
>correct if the scene is close entironment. For example, the scene is
>inside of pCube as a house. I have already reversed the normal and
>setup two lights for this pCube, but the rendering result is the
>whole dark image.
>How can I solve the problem?
>
Hi Kelvin...
Glad to hear your toon rendering is working...
For indoor occlusion to work properly you have to play with the shader
parameters: max distance and spread (higher samples will get rid of a
grainy
texture). For occlusion lighting I just use ambient lighting (a skydome
for
outdoor shots) to get a even shading effect, you could try (?) turning off
your
lights and turning on the pCube's shader incandescence to create ambient
lighting (the cube should have no bottom or a separate non incandescent
plane).
I've only used mental ray occlusion layers for single frame renderings.
Once I get the layer basically working I take it to Photoshop and tune it
up,
before multiplying or overlaying it with the other p*****. You can spend a
lot of time trying for the best Maya rendering, but I found that getting a
basically correct rendering and then tweaking it inside Photoshop is much
faster
(saturation control is a problem in Maya).
For an animation al compositor I'm using PhotoShop CS3 Extended,
you can rendering your animation while directly use Photoshops effects to
a
specific layer for the entire animation. It works OK, but there is no
sound
channel.
hth's aen...
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