Brightness/Contrast Node for Cycles

Contrast helps to adjust IBL (HDR images used for background lighting).
Note: In the UI we are caling it Bright instead of Brightness. This copy what Blender composite is doing.
Note2: the algorithm we are using produces pure black when contrast is 100. I'm not a fan of that, but it's a division by zero. I would like to look at other algorithms (what gimp does for example). But that would be only after 2.62.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/nodes/NOD_shader.h b/source/blender/nodes/NOD_shader.h
index 907efd76786..63fc0f4232c 100644
--- a/source/blender/nodes/NOD_shader.h
+++ b/source/blender/nodes/NOD_shader.h
@@ -55,6 +55,7 @@ void register_node_type_sh_rgbtobw(struct bNodeTreeType *ttype);
 void register_node_type_sh_texture(struct bNodeTreeType *ttype);
 void register_node_type_sh_normal(struct bNodeTreeType *ttype);
 void register_node_type_sh_gamma(struct bNodeTreeType *ttype);
+void register_node_type_sh_brightcontrast(struct bNodeTreeType *ttype);
 void register_node_type_sh_geom(struct bNodeTreeType *ttype);
 void register_node_type_sh_mapping(struct bNodeTreeType *ttype);
 void register_node_type_sh_curve_vec(struct bNodeTreeType *ttype);