Ambient Occlusion split up into:

Ambient occlusion: multiplied with direct lighting by default, add
is also still available and more blending methods might be added if
they are useful. This is fundamentally a non physical effect.

Environment lighting: always added as you would expect (though you can
subtract by specifying negative energy). This can be just white or take
colors or textures from the world.

Indirect lighting: only supported for AAO at the moment (and is still
too approximate), and also is always added. A factor is available to
specify how much is added, though value 1.0 is correct.

Also:
* Material ambient value now defaults to 1.0.
* Added Environment, Indirect and Emit pass.
* "Both" blending method is no longer available.
* Attenuation, sampling parameters are still shared, some could be split
  up, though if they are different this would affect performance.

1 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/render/extern/include/RE_shader_ext.h b/source/blender/render/extern/include/RE_shader_ext.h
index 28d88e1f8b4..a7c0f9511a5 100644
--- a/source/blender/render/extern/include/RE_shader_ext.h
+++ b/source/blender/render/extern/include/RE_shader_ext.h
@@ -49,10 +49,13 @@ typedef struct ShadeResult
 	float combined[4];
 	float col[4];
 	float alpha, mist, z;
+	float emit[3];
 	float diff[3];		/* no ramps, shadow, etc */
 	float spec[3];
 	float shad[3];
 	float ao[3];
+	float env[3];
+	float indirect[3];
 	float refl[3];
 	float refr[3];
 	float nor[3];
@@ -153,7 +156,7 @@ typedef struct ShadeInput
 	float dxstrand, dystrand;
 	
 	/* AO is a pre-process now */
-	float ao[3], indirect[3];
+	float ao[3], indirect[3], env[3];
 	
 	int xs, ys;				/* pixel to be rendered */
 	int mask;				/* subsample mask */