TexCoord2 support for [DrawMesh] & [SetMaterial]

[newemka]

Since I've updated the PBR struct for [DisplaceMeshVAT], a mesh can have a second set of texture coordinates.

TexCoord2-v01.mp4

Todo :

• support for shared Blend-function.hlsl
• TexCoord switches for the different textures
• trying to not over bloat [SetMaterial]

[pixtur]

Hi @newemka,

I would have thought that many more than 14 files would require to be updated for that.
Shouldn't this affect all mesh operators?

[newemka]

You're right, since the PBR struct update , all mesh operators have their stride updated as well. (#479)
Right now the state of this PR is just what I needed for a project I'm working on. It allows me to make some experiments and see how to implement the use of the TexCoord2 for more operators.
I will update more mesh opertors soon.

[pixtur]

Okay. No worries. But it would probably be good to pull this over to main