Hello, I have this mesh:
and I was wondering how to draw a path so that the plane would look like this (with smooth borders):
What I have been able to do so far is this.
and as you can see, it's such a fail. I don't know what to do to make it smooth.
I've seen that by increasing the resolution of the alpha map, the path gets smoother, but I have to increase it a lot...
Turn on linear texture filtering (you appear to be using point/nearest filtering).
If you are using OpenGL that would be glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR). D3D has similar functionality.
Consider distance-field alpha maps. They give extreme resolution for the same footprint with no extra HW requirements. You'll have to compute them though.
