Cleanup: spelling in comments

Also move notes about where noise functions come from
into the function body as it's not relavant to the public doc-string.

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/blenlib/intern/noise.cc b/source/blender/blenlib/intern/noise.cc
index 56ff4feb42e..a6ad18801fd 100644
--- a/source/blender/blenlib/intern/noise.cc
+++ b/source/blender/blenlib/intern/noise.cc
@@ -768,6 +768,8 @@ float musgrave_fBm(const float co,
                    const float lacunarity,
                    const float octaves_unclamped)
 {
+  /* From "Texturing and Modelling: A procedural approach". */
+
   float p = co;
   float value = 0.0f;
   float pwr = 1.0f;
@@ -917,6 +919,8 @@ float musgrave_fBm(const float2 co,
                    const float lacunarity,
                    const float octaves_unclamped)
 {
+  /* From "Texturing and Modelling: A procedural approach". */
+
   float2 p = co;
   float value = 0.0f;
   float pwr = 1.0f;
@@ -1067,6 +1071,8 @@ float musgrave_fBm(const float3 co,
                    const float lacunarity,
                    const float octaves_unclamped)
 {
+  /* From "Texturing and Modelling: A procedural approach". */
+
   float3 p = co;
   float value = 0.0f;
   float pwr = 1.0f;
@@ -1219,6 +1225,8 @@ float musgrave_fBm(const float4 co,
                    const float lacunarity,
                    const float octaves_unclamped)
 {
+  /* From "Texturing and Modelling: A procedural approach". */
+
   float4 p = co;
   float value = 0.0f;
   float pwr = 1.0f;