Colour Management

- 1st stage: Linear Workflow

This implements automatic linear workflow in Blender's renderer. With the 
new Colour Management option on in the Render buttons, all inputs to the 
renderer and compositor are converted to linear colour space before 
rendering, and gamma corrected afterwards. In essence, this makes all 
manual gamma correction with nodes, etc unnecessary, since it's done 
automatically through the pipeline.

It's all explained much better in the notes/doc here, so please have a look:
http://wiki.blender.org/index.php/Dev:Source/Blender/Architecture/Colour_Management

And an example of the sort of difference it makes:
http://mke3.net/blender/devel/rendering/b25_colormanagement_test01.jpg

This also enables Colour Management in the default B.blend, and changes the 
default lamp falloff to inverse square, which is more correct, and much 
easier to use now it's all gamma corrected properly.

Next step is to look into profiles/soft proofing for the compositor.

Thanks to brecht for reviewing and fixing some oversights!

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/render/intern/include/shading.h b/source/blender/render/intern/include/shading.h
index 54311d2515a..d195f32d5ef 100644
--- a/source/blender/render/intern/include/shading.h
+++ b/source/blender/render/intern/include/shading.h
@@ -66,6 +66,7 @@ void shade_input_set_strand(struct ShadeInput *shi, struct StrandRen *strand, st
 void shade_input_set_strand_texco(struct ShadeInput *shi, struct StrandRen *strand, struct StrandVert *svert, struct StrandPoint *spoint);
 void shade_input_do_shade(struct ShadeInput *shi, struct ShadeResult *shr);
 
+void shade_input_init_material(struct ShadeInput *shi);
 void shade_input_initialize(struct ShadeInput *shi, struct RenderPart *pa, struct RenderLayer *rl, int sample);
 
 void shade_sample_initialize(struct ShadeSample *ssamp, struct RenderPart *pa, struct RenderLayer *rl);