diff options
Diffstat (limited to 'source/blender/draw/intern/shaders/common_math_lib.glsl')
| -rw-r--r-- | source/blender/draw/intern/shaders/common_math_lib.glsl | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/source/blender/draw/intern/shaders/common_math_lib.glsl b/source/blender/draw/intern/shaders/common_math_lib.glsl index 479f9cd1827..bc31649fd0f 100644 --- a/source/blender/draw/intern/shaders/common_math_lib.glsl +++ b/source/blender/draw/intern/shaders/common_math_lib.glsl @@ -6,6 +6,7 @@ #define M_PI 3.14159265358979323846 /* pi */ #define M_2PI 6.28318530717958647692 /* 2*pi */ #define M_PI_2 1.57079632679489661923 /* pi/2 */ +#define M_PI_4 0.78539816339744830962 /* pi/4 */ #define M_1_PI 0.318309886183790671538 /* 1/pi */ #define M_1_2PI 0.159154943091895335768 /* 1/(2*pi) */ #define M_1_PI2 0.101321183642337771443 /* 1/(pi^2) */ @@ -93,7 +94,7 @@ vec2 sqr(vec2 a) { return a * a; } vec3 sqr(vec3 a) { return a * a; } vec4 sqr(vec4 a) { return a * a; } -/* Use manual powers for fixed powers. pow() can have unpredicatble results on some implementations. +/* Use manual powers for fixed powers. pow() can have unpredictable results on some implementations. * (see T87369, T87541) */ float pow6(float x) { return sqr(sqr(x) * x); } float pow8(float x) { return sqr(sqr(sqr(x))); } |