I'm doing a 3D map with a single material only using masks to change between terrain types, but once I add more than 5 mix/principled shaders the material turns pink, this issue just happens in the material preview window, not in the rendered preview.

Like so: Like so

And as you can see it is not a missing texture issue either since it previews just fine if done separately. And as you can see it is not a missing texture issue either And as you can see it is not a missing texture issue either

I need to fix this otherwise I can't paint on the masks, so if anyone can shed light on the situation I would be grateful, thanks!

I couldn't make the file size lower than 30mb since there are a lot of textures, I hope a google drive link is acceptable? File

  • $\begingroup$ What are your system specs? Are you using CPU or GPU for render? $\endgroup$ – Craig D Jones Mar 19 '20 at 14:48
  • $\begingroup$ I'm using a GPU for rendering. My specs are: CPU: Ryzen 7 1700 GPU: GTX 1070 RAM: 2x8gb 3000Mhz OS: Windows 10 64bit $\endgroup$ – Kobera Mar 19 '20 at 17:12
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    $\begingroup$ Are there any Principled BSDF shaders that are not needed and can be replaced with Diffuse BSDF? $\endgroup$ – Craig D Jones Mar 19 '20 at 18:32
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    $\begingroup$ Yeah, actually they can all be replaced with Diffuse shaders, however, I replaced a couple of them but the issue still persists, I'm gonna replace all of them and see if that changes anything. $\endgroup$ – Kobera Mar 19 '20 at 19:31

So I changed all the Principled BSDF shaders to simple Diffuse BSDF shaders, like Craig suggested and it worked! Don't know the exact reason why it worked but I guess the Principled BSDF is too complex for putting a bunch of them in a single material. Anyway thanks for the help again.


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