14532a2e69
- inScatteringSize actually cannot be set to zero because it produces a 0^0 in the shader. So with this change, in-scattering must be strictly > 0 to enable. - inScatteringSize on the java side had an incorrect default value of zero (which of course, now doesn't matter anymore). - also clamp the fog altitude to 1mm which simplifies the shader quite a bit for the same result. Fixes #3069