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View Full Version : Multiple Shaders/Transparency Maps in one Material


PureMoxi
12-08-2008, 02:34 AM
Hello all. I am trying to render a product with packaging that has different material properties on different elements of the package. For example, the logo has more of a plastic feel to it while some of the type as a metallic feel to it. As such, I want to isolate these elements and apply different shaders to them. I figured I could use transparencies maps or even simply mix/combine multiple shaders with the respective alphas/mattes used to isolate them. However, I am having a bit of a tough time making it work. The Mix8 node just doesn't seem right...Here is the render tree as it stands.

http://www.ryanmcdougal.com/CGTalk/Render_Tree_001.jpg

Here is an example of how I use a texture map and a alpha/matte to isolate the specific piece of the packaging I want to affect. I want to just have them add to each other to create one image, using different shaders on each. Is this possible?

http://www.ryanmcdougal.com/CGTalk/Multiple_Textures.jpg

I realize that I could use a render pass setup to isolate everything but wondered if anyone knew the missing pieces that I can't seem to put together to make this work and would like to learn an alternate way that relying on my comping and pass setup skills.

Any thoughts would be helpful.

greyface
12-09-2008, 06:21 PM
You could try using the Texture Layer Editor, also setting the blend mode to 'decal' in the mix8 might help.. Hard to tell though because I don't know what it's supposed to look like.. Is the problem that it's fully transparent?

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12-09-2008, 06:22 PM
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