texture saturation option.

we'll need a do-version bump soon or this will convert 0.0 saturation to 1.0 on load.

5 files changed, 23 insertions, 3 deletions

diff --git a/source/blender/blenkernel/intern/texture.c b/source/blender/blenkernel/intern/texture.c
index 8178ef75a91..57816b7e470 100644
--- a/source/blender/blenkernel/intern/texture.c
+++ b/source/blender/blenkernel/intern/texture.c
@@ -451,6 +451,7 @@ void default_tex(Tex *tex)
 	tex->nabla= 0.025;	// also in do_versions
 	tex->bright= 1.0;
 	tex->contrast= 1.0;
+	tex->saturation= 1.0;
 	tex->filtersize= 1.0;
 	tex->rfac= 1.0;
 	tex->gfac= 1.0;
diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index def7b0cdcce..d078b83c653 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -10855,6 +10855,7 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
 		Object *ob;
 		Scene *scene;
 		bScreen *sc;
+		Tex *tex;
 
 		for (sc= main->screen.first; sc; sc= sc->id.next) {
 			ScrArea *sa;
@@ -10945,6 +10946,13 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
 			}
 		}
 
+		for(tex= main->tex.first; tex; tex= tex->id.next) {
+			/* if youre picky, this isn't correct until we do a version bump
+			 * since you could set saturation to be 0.0*/
+			if(tex->saturation==0.0f)
+				tex->saturation= 1.0f;
+		}
+
 	}
 
 	/* WATCH IT!!!: pointers from libdata have not been converted yet here! */
diff --git a/source/blender/makesdna/DNA_texture_types.h b/source/blender/makesdna/DNA_texture_types.h
index b6f72875c29..e7a5a6e5f56 100644
--- a/source/blender/makesdna/DNA_texture_types.h
+++ b/source/blender/makesdna/DNA_texture_types.h
@@ -203,8 +203,8 @@ typedef struct Tex {
 	struct AnimData *adt;	/* animation data (must be immediately after id for utilities to use it) */ 
 	
 	float noisesize, turbul;
-	float bright, contrast, rfac, gfac, bfac;
-	float filtersize;
+	float bright, contrast, saturation, rfac, gfac, bfac;
+	float filtersize, pad2;
 
 	/* newnoise: musgrave parameters */
 	float mg_H, mg_lacunarity, mg_octaves, mg_offset, mg_gain;
diff --git a/source/blender/makesrna/intern/rna_texture.c b/source/blender/makesrna/intern/rna_texture.c
index a12b8c55552..84fd217e64e 100644
--- a/source/blender/makesrna/intern/rna_texture.c
+++ b/source/blender/makesrna/intern/rna_texture.c
@@ -1706,6 +1706,11 @@ static void rna_def_texture(BlenderRNA *brna)
 	RNA_def_property_range(prop, 0.01, 5);
 	RNA_def_property_ui_text(prop, "Contrast", "");
 	RNA_def_property_update(prop, 0, "rna_Texture_update");
+
+	prop= RNA_def_property(srna, "saturation", PROP_FLOAT, PROP_NONE);
+	RNA_def_property_range(prop, 0, 2);
+	RNA_def_property_ui_text(prop, "Saturation", "");
+	RNA_def_property_update(prop, 0, "rna_Texture_update");
 	
 	/* RGB Factor */
 	prop= RNA_def_property(srna, "factor_red", PROP_FLOAT, PROP_NONE);
diff --git a/source/blender/render/intern/include/texture.h b/source/blender/render/intern/include/texture.h
index 3e6fc8c5677..436b365b352 100644
--- a/source/blender/render/intern/include/texture.h
+++ b/source/blender/render/intern/include/texture.h
@@ -40,7 +40,13 @@ if(texres->tr<0.0) texres->tr= 0.0; \
 texres->tg= tex->gfac*((texres->tg-0.5)*tex->contrast+tex->bright-0.5); \
 if(texres->tg<0.0) texres->tg= 0.0; \
 texres->tb= tex->bfac*((texres->tb-0.5)*tex->contrast+tex->bright-0.5); \
-if(texres->tb<0.0) texres->tb= 0.0; 
+if(texres->tb<0.0) texres->tb= 0.0; \
+if(tex->saturation != 1.0f) { \
+	float _hsv[3]; \
+	rgb_to_hsv(texres->tr, texres->tg, texres->tb, _hsv, _hsv+1, _hsv+2); \
+	_hsv[1] *= tex->saturation; \
+	hsv_to_rgb(_hsv[0], _hsv[1], _hsv[2], &texres->tr, &texres->tg, &texres->tb); \
+} \
 
 
 struct HaloRen;