Messages

1

Graphics / Re: Interpolating color over multiple nodes

« on: May 17, 2020, 10:03:32 pm »

You could manually interpolate the colours between the ones you wish to interpolate for each of the vertices between those two. Looks like it might be a simple task. Depends on what you mean specifically and if I've fully understood what you meant.

This is an example of what I am trying to accomplish.

https://i.imgur.com/KUfK76H.png

The difference here is that he is using rectangular elements and I am using triangles but that's irrelevant.
On second thought, I think color interpolation for every triangle on its own might do job but if it didn't and I want to implement it myself, I would have to use shaders as eXpl0it3r suggested?

2

Graphics / Interpolating color over multiple nodes

« on: May 16, 2020, 04:05:28 pm »

I have a mesh or a drawing with multiple connected triangles and every node or vertex of these triangles in the mesh has a certain value (stress, strain etc.) and I want to draw a heat map for these values over my mesh.

In SFML tutorial, it was demonstrated that you could assign a color to every vertex in triangle native type, then color of triangle would be interpolated over color of the 3 nodes.

Is there's a way to get color interpolation to use specified 'neighboring nodes' and not just nodes in its own set of shape?