more work on fog & c30

1 files changed, 4 insertions, 3 deletions

diff --git a/math.cginc b/math.cginc
index bb01823..f4e8f3a 100644
--- a/math.cginc
+++ b/math.cginc
@@ -8,6 +8,10 @@
 #define HALF_PI (PI * 0.5)

 #define PHI 1.618033989

 #define SQRT_2_RCP 0.707106781

+#define TWO_OVER_THREE  0.6666666666666666f

+#define SQRT_3_OVER_2   0.8660254037844386f

+#define EULERS_CONSTANT 2.718281828

+

 

 float pow5(float x)

 {

@@ -285,9 +289,6 @@ float3 cmykToRgb(float4 cmyk) {
 

 // Cartesian to cube hexagonal coordinates.

 // Based on this: https://backdrifting.net/post/064_hex_grids

-#define TWO_OVER_THREE  0.6666666666666666f

-#define SQRT_3_OVER_2   0.8660254037844386f

-

 float3 cart_to_hex(float2 cart) {

   float p = cart.x;

   float q = dot(cart, float2(0.5f, SQRT_3_OVER_2));