Eesho's patch for new noise textures!

Basically this provides three new things:

1. Choice of a list of noise-base functions, which can be used by the
   current Clouds, Marble, Wood textures as well.
2. Three new texture types: Musgrave, Voronoi and DistortedNoise
3. Python access to noise functions (not for render!)

All of this together makes Blender's builtin procedural textures a LOT
more powerful. Here again, a full webpage should be made to show off all
possibilities, and explain some of the more scientific names for settings.

A good read on Musgrave textures can be found here:
http://www.ypoart.com/Downloads/Musgrave.htm
About Voronoi:
http://www.ypoart.com/Downloads/Worley.htm
I can't find official DistortedNoise docs easily... maybe its something
Eeshlo created himself.

I've spent some time to change the patch Eeshlo provided. Worth noting:
- created main texture "Musgrave" with 5 sub choices (instead of 5 new
  main textures)
- added for all new textures the option to scale (zoom in out)
- added patch in do_versions to initialize variables

I hope the Python team will check on the Noise.c API. And include in docs!

1 files changed, 16 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_blenlib.h b/source/blender/blenlib/BLI_blenlib.h
index e56b44902d7..fc4c85ad681 100644
--- a/source/blender/blenlib/BLI_blenlib.h
+++ b/source/blender/blenlib/BLI_blenlib.h
@@ -273,6 +273,22 @@ float BLI_hnoise(float noisesize, float x, float y, float z);
 float BLI_hnoisep(float noisesize, float x, float y, float z);
 float BLI_turbulence(float noisesize, float x, float y, float z, int nr);
 float BLI_turbulence1(float noisesize, float x, float y, float z, int nr);
+/* newnoise: generic noise & turbulence functions to replace the above BLI_hnoise/p & BLI_turbulence/1.
+ * This is done so different noise basis functions can be used */
+float BLI_gNoise(float noisesize, float x, float y, float z, int hard, int noisebasis);
+float BLI_gTurbulence(float noisesize, float x, float y, float z, int oct, int hard, int noisebasis);
+/* newnoise: musgrave functions */
+float mg_fBm(float x, float y, float z, float H, float lacunarity, float octaves, int noisebasis);
+float mg_MultiFractal(float x, float y, float z, float H, float lacunarity, float octaves, int noisebasis);
+float mg_VLNoise(float x, float y, float z, float distortion, int nbas1, int nbas2);
+float mg_HeteroTerrain(float x, float y, float z, float H, float lacunarity, float octaves, float offset, int noisebasis);
+float mg_HybridMultiFractal(float x, float y, float z, float H, float lacunarity, float octaves, float offset, float gain, int noisebasis);
+float mg_RidgedMultiFractal(float x, float y, float z, float H, float lacunarity, float octaves, float offset, float gain, int noisebasis);
+/* newnoise: voronoi */
+void voronoi(float x, float y, float z, float* da, float* pa, float me, int dtype);
+/* newnoise: cellNoise & cellNoiseV (for vector/point/color) */
+float cellNoise(float x, float y, float z);
+void cellNoiseV(float x, float y, float z, float *ca);
 
 /* These callbacks are needed to make the lib finction properly */