How to scale a texture to fit the full mesh?

Development Rendering
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1

I’m trying to figure out a way to dynamically scale my textures to fit the mesh. In other words, the bounds of the texture should be the Min and Max pixels that have a non-zero alpha. I need to do this without editing the source texture and it needs to work automatically on any texture I pass in. In other words, anything that requires manual adjustment of UVs or scale will not work here.

Is that possible to do with the material system?

2

maybe you can multiply the u and v with a parameter

4

Yeah, that’s what I ended up doing, although I was hoping for something that would scale the UVs automatically based on the alpha.