I would like to be able to set UV's directly in the MyBillboard class. I have currently added it like this to custom DLLs:

In MyBillboard: public Vector2? UV0; public Vector2? UV1; public Vector2? UV2; public Vector2? UV3;

In MyBillboardRenderer -> GatherInternal: ... myBillboardVertexData.V3.Position = (Vector3)vector3D4; if (myBillboard.UV0 != null) { myBillboardVertexData.V0.Texcoord = new HalfVector2(myBillboard.UV0.Value); myBillboardVertexData.V1.Texcoord = new HalfVector2(myBillboard.UV1.Value); myBillboardVertexData.V2.Texcoord = new HalfVector2(myBillboard.UV2.Value); myBillboardVertexData.V3.Texcoord = new HalfVector2(myBillboard.UV3.Value); } else { .... } MyBillboardRenderer.m_arrayDataBillboards.Data[i] = myBillboardData; ...

Also this code ( MyTransparentMaterials.GetMaterial(myBillboard.Material) ) is used a lot of times and not very performance friendly. Being able to set a material reference directly rather than a string would be good