Implementing a 32-bit heightmap vertex shader in threejs

Question

I am attempting to repurpose the heightmap shader example found here into one that will work with 32-bits of precision instead of 8. The work-in-progress code is on github: htt

Answer 1

If you encode a wide integer into the components of a RGBA vector it's essential that you turn off filtering so that no interpolation happens between the values. Also OpenGL may internally convert to a different format, but that should only reduce your sample depth.