Add glitter and more masked stencil channels

1 files changed, 8 insertions, 0 deletions

diff --git a/quilez.cginc b/quilez.cginc
index e478db1..c9ac477 100644
--- a/quilez.cginc
+++ b/quilez.cginc
@@ -147,6 +147,14 @@ float distance_from_capsule(float3 p, float3 a, float3 b, float r)
   return length( pa - ba*h ) - r;

 }

 

+// https://iquilezles.org/articles/ellipsoids/

+float distance_from_ellipsoid(float3 p, float3 r)

+{

+    float k1 = length(p/r);

+    float k2 = length(p/(r*r));

+    return k1*(k1-1.0)/k2;

+}

+

 /*

 float sdHexPrism( vec3 p, vec2 h )

 {