Cycles: add voronoi features and distance settings from Blender.

Features to get the 2nd, 3rd, 4th closest point instead of the closest, and
various distance metrics. No viewport/Eevee support yet.

Patch by Michel Anders, Charlie Jolly and Brecht Van Lommel.

Differential Revision: https://developer.blender.org/D3503

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl b/source/blender/gpu/shaders/gpu_shader_material.glsl
index 2cb92fd1cbc..ab044fff100 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -3660,7 +3660,7 @@ void node_tex_sky(vec3 co, out vec4 color)
 	color = vec4(1.0);
 }
 
-void node_tex_voronoi(vec3 co, float scale, float coloring, out vec4 color, out float fac)
+void node_tex_voronoi(vec3 co, float scale, float exponent, float coloring, out vec4 color, out float fac)
 {
 #ifdef BIT_OPERATIONS
 	vec3 p = co * scale;