Material sloping not working on UProceduralMeshComponent

Development World Creation
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1

Hi Guys,

I have spent the past week re-inventing (mostly for fun) the wheel and creating voxel worlds.

Currently i have just finished marching cubes :slight_smile: quite fun, however
the material is killing me, i am trying to blend materials, more specifically on a slope so its rock on the sides

the below image I have tried to reduce it to just the world aligned blend which on the left the preview is fine

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image1140×584 84.7 KB

but the render itself it refuses to blend anything on the sides

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image1083×776 96.6 KB

I have tried about 6 different methods and all the same. I have tried ommiting normals/tangents from the create CreateMeshSection_LinearColor and tried about 6 different ways to generate normals and tangents

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image629×252 30.4 KB

Am I barking up the wrong tree, is there something obvious I am missing?

2

well sorted it, clearly what i was doing with normals and tangents wasnt correct

ended up using

UKismetProceduralMeshLibrary::CalculateTangentsForMesh(_verts, _tris, _uv, _normals, _tangents);

before i called the create mesh section just and that fixed it instantly, material needs some work now but at least it functions

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image1075×835 95.7 KB

leaving this here for anyone else :slight_smile:

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