bugfix: c31 would break build when disabled

1 files changed, 2 insertions, 0 deletions

diff --git a/custom31.cginc b/custom31.cginc
index 67ecb78..fa6b469 100644
--- a/custom31.cginc
+++ b/custom31.cginc
@@ -6,6 +6,7 @@
 #include "math.cginc"
 #include "quilez.cginc"
 
+#if defined(_CUSTOM31_WORLD)
 float c31_map(float3 p, float3 p_quant) {
   float2 hex_dim = float2(_Custom31_World_Hexagons_Tile_Radius, _Custom31_World_Hexagons_Tile_Thickness);
 
@@ -26,6 +27,7 @@ float3 c31_normal(float3 p, float3 p_quant) {
       c31_map(p + xstep.yxy, p_quant) - d0,
       c31_map(p + xstep.yyx, p_quant) - d0));
 }
+#endif  // _CUSTOM31_WORLD
 
 void apply_custom31_world(v2f i, inout Pbr pbr, inout float3 normal_tangent) {
 #if defined(_CUSTOM31_WORLD)