GameMaker [primitives] How to avoid color mixture?

[Dupletor]

I have a model that would be much more efficiently drawn through the concept of trianglestrips. However, colors get mixed around when I use trianglestrips... (ignore the weird shape, I literally took the model for trianglelist and put it in trianglestrip, but we can see the continuous mixture in some areas)



While I want them to be constant for each triangle: (model applied in trianglelists)



How am I supposed to make colors differ by triangle in a trianglestrip, if the colour is set for each dot in the primitive?

 

[Binsk]

Have all of them the same color or don't use triangle strips.

Triangle strips by definition share vertices between triangles. This also means they will be sharing the color data. If you have different color data between vertices then they will be linearly interpolated.