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I want to make a plane look like its been decaying with rust holes in the jungle for decades like this picture.WW2 Japanese Mitsubishi Betty

I think I remember seeing an add-on that could do this, I could be wrong, but any help is greatly appreciated.

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Final:

final

Overview:

Basically you can use the same method as for creating any other rust material with one exception at the end - mix your rust material with Transparent shader trough "rust mask", created beforehand. This will create hard holes in your mesh. I've used Greater Than math node to harden texture.

nodes

There is downside to this method. You can't add thickness to the mesh. If you add Solidify modifier, the edges will be empty. You can try to work around this with Volume texture but it could be an overkill.

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  • $\begingroup$ Any way to work around the musgrave texture it causes blender to crash every time I use it $\endgroup$ – Ben Smith Aug 2 '18 at 18:48
  • $\begingroup$ @BenSmith that's strange... What version of blender are you using? And what OS? I'll try something different. $\endgroup$ – cgslav Aug 2 '18 at 18:50
  • $\begingroup$ 2.79 I'm running off CPU I don't have a graphics card in this computer that could be the reason. I even just tried the materials on a cube and it was running really slow. $\endgroup$ – Ben Smith Aug 2 '18 at 18:53
  • $\begingroup$ @BenSmith I'm trying to make something without Musgrave. Hold on. $\endgroup$ – cgslav Aug 2 '18 at 18:54
  • $\begingroup$ @BenSmith No luck. Only Musgrave gives this nice rim effect. Other textures are just hole/rust, without metal. Do you have 2.79b? Try maybe making it in experimental 2.8. How much RAM memory do you have? This setup is taking something around 60MB RAM with the cube from image. $\endgroup$ – cgslav Aug 2 '18 at 19:09

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