Making it easier to work with shaders https://git.yummers.dev/slang.git/atom?h=master 2020-05-11T21:57:05+00:00 2020-05-11T21:57:05+00:00 Tim Foley tfoleyNV@users.noreply.github.com 2020-05-11T21:57:05+00:00 urn:sha1:f5dfa1ed6a51809e8593f5f2abc292ab39f35dcb The existing code was assuming `fmod()` was available as a builtin in GLSL, which isn't true. It also isn't possible to translate the HLSL `fmod()` to the GLSL `mod()` since the two have slightly different semantics. This change introduces a definition for `fmod(x,y)` that amounts to `x - y*trunc(x/y)` which should agree with the HLSL version except in corner cases (e.g., there are some cases where the HLSL version returns `-0` and this one will return `0`).