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Sully
09-29-2009, 06:20 PM
Hi im making an environment and am trying to add simple planes with trees which are .tiff with alpha. The problem is when I render the scene the alphas seem to be doing there job but they are not completely removing the parts of the texture that they should! I have got the textures applied to a surface shader which is mapped to Out colour and out transparency. Im also using mr sun and sky withoug FG for now. Any ideas why this is happening?
tostao_wayne
09-29-2009, 06:29 PM
use a mia_material_x, set the difuse color to black, map the alpha to the cutoutopacity slot and the color to the aditional color slot.
Sully
09-29-2009, 07:49 PM
Unfortunatly I have to use maya 8.5 for this project I have just tried this out on the standard mia mateirial and im getting a similar result
Lehnard
09-30-2009, 11:41 AM
Could you upload a Picture of it?
Is Specular turned of or masked as well?

If you are using transparent maya shaders in MentalRay itīs also importand to turn on "Export with Shading Engine" in the shadingEngine of the Shader, otherwise you might get a lot of problems with all those objects behind.
djx
09-30-2009, 02:27 PM
Sully: I think the easiest solution is to use maya's layeredShader, instead of the surface shader. Set the layeredShader "compositing flag" to "layer texture". Then drag and drop your fileTexture on both "color" and "transparency".

-- David
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