Hey guys!

I am trying to render a triangle using UProceduralMeshComponent. Even though I setup vertex colors, the triangle is rendered as gray. I have rebuilt lighting.

int32 SectionIndex = 0;
TArray<FVector> Vertices = { FVector(0.0f, 0.0f, 0.0f), FVector(0.0f, 0.0f, 40.0f), FVector(0.0f, 40.0f, 0.0f) };
TArray<int32> Triangles = { 0, 2, 1 };
TArray<FVector> Normals;
TArray<FVector2D> UV0;
TArray<FColor> VertexColors = { FColor(255, 0, 0, 255), FColor(255, 0, 0, 255), FColor(255, 0, 0, 255) };
TArray<FProcMeshTangent> Tangents;
bool bCreateCollision = true;

ProceduralMeshComponent->CreateMeshSection(SectionIndex, Vertices, Triangles, Normals, UV0, VertexColors, Tangents, bCreateCollision);

What could I be wrong? Do I need to set a material for the vertex color? I am not able to find one in the documentation.

Thanks!

Are you using correct shading material that utilize vertex colors display? Vertex colors are not usualy used for actual color, but often it is textures blending etc.