Get color information from textures ?

[webgrid]

Is it possible to get color information from a texture by using "TexCoord" ? (SharpGLTF.Geometry.VertexTypes.VertexColor1Texture1.TexCoord)

Thank you.

[vpenades]

SharpGLTF.Geometry.VertexTypes.VertexColor1Texture1.TexCoord just gives you the UV coordinates within the texture associated to the material used by the mesh primitive.

so if you want to know the color of the pixel of the texture at that coordinate you would need to:

• Decode the bitmap of the image using an imaging library (System.Drawing.Common, ImageSharp, etc)
• Find de pixel coordinates by multiplying the UV coordinates by the bitmap size.
• Get the pixel color at the given coordinates.

Notice that this is usually done by a vertex/pixel shader in a graphics engine.

[webgrid]

Thanks Vicente Penades!

I used MemoryImage to create a bitmap image, I get the color by GetPixel as you suggested, and I replaced the texture material by solid color material.

The result are generated files is reduced by around 80-90% in file size for my models.