Re: [cgkit-user] Using textures with alpha in OBJMaterial

[Maik R. <mai...@ar...>]

On 05.04.2012 22:51, Matthias Baas wrote:
> In an obj material, the transparency is specified using the "d"
> (=dissolve) parameter which is also what's implemented in the
> corresponding RenderMan shader in cgkit. So you have to store your alpha
> channel as a separate image and set that image as the map_d parameter.
> Alternatively, you could grab the generated shader, tweak it and use the
> modified version instead of the default one (using a RMMaterial object).
Works perfectly, thanks! :) Using a separate alpha map increases 
rendering time for me from 6s to 8s. But I guess a separate map is the 
only way here.

Maik