From the course: NUKE NUGGETS

Unlock this course with a free trial

Join today to access over 22,500 courses taught by industry experts.

090 FillMat, MergeMat, and BlendMat Demystified

090 FillMat, MergeMat, and BlendMat Demystified - Nuke Tutorial

From the course: NUKE NUGGETS

090 FillMat, MergeMat, and BlendMat Demystified

- [Steve] Hi, this is Steve Wright, welcoming you to this week's Nuke Nugget. Nuke has three materials blending nodes for texture mapping 3D objects. Here we'll see what each one does and when to use them. We'll start with the FillMat. Now, the purpose of the FillMat is to actually replace channels of your texture map with a solid color. So we have this checkerboard here which goes to a sphere here. If I open up the FillMat node, you can see it's set for rgba 000, so it's going to overwrite this texture with zero black all the way around like this. Now if we take a look at the rendered output, take a render here, switch to the RGB. We've punched a nice black hold in the RGB and the alpha channels with this. Now, some people think you can do that with a constant node, but watch what happens when I try. If I hook up this constant node, oops, I lost my RGB holdout. Well, that's because the constant node has got 000 in all four channels, so if I want to hold this out, I better have a…

Contents