Hello everyone, I work with Houdini and Maya, I am having a problem figuring out how to uv and add textures to a rigid simulation. Here's the problem:

I have a brick wall which when acted upon by a geo which is sphere will shatter upon impact. Unlike other sims I have worked on, I don't want the wall to shatter as different voronoi pieces but as bricks. That's, every rectangular brick will be a piece. Now, I have a wallpaper which I want to be on front side of the wall as a texture. Furthermore, as the brick wall shatters, I want the other 5 sides of each brick to have a different texture (say a checkerboard). I have done rigid sims and i know how to add texture, but since this is a brickwall, it is a problem thinking how to go about it. My problem is how do I create the UV and how do I assign the textures bearing in mind that the wallpaper must sit and align on the front side of the wall? I can't imagine myself texturing 100 bricks one by one. Thanks in advance.

First UV a single brick and make sure it renders fine with the materials/textures you want for all but the front face, which you will project as a whole. Select the front face of a single brick and group it, (you will probably want to group every face of the brick if they are all getting a different texture/material).

Now, go to the first frame, and add new UVs only to the group you just made (the front face).

In the material SOP after the sim, you will assign your materials to the various groups, and it should “just work.”

mrCatfish
First UV a single brick and make sure it renders fine with the materials/textures you want for all but the front face, which you will project as a whole. Select the front face of a single brick and group it, (you will probably want to group every face of the brick if they are all getting a different texture/material).

Now, go to the first frame, and add new UVs only to the group you just made (the front face).

In the material SOP after the sim, you will assign your materials to the various groups, and it should “just work.”

Thanks man.