fp32 (32-bit Floating Point)
Provides "improved" 32-bit math support to GPU shaders on certain platforms, mainly compensating for non-IEEE compliant "fast-math" functions that GPU vendors use to trade accuracy for speed.
Function | Description |
---|---|
vec2 tan_fp32 (vec2 a) | Improved accuracy tan - falls back to tan on non-Intel platforms |
Performance Implications
Since 32-bit floating point trigonometric is using more accurate Taylor approximations, they cost more GPU cycles than built-in versions. If you need the precision, it is typically worth the cost.