Orange: and now for the real exr fun: float buffer support in Image window!

Image as loaded in Blender (from openexr.com):
http://www.blender.org/bf/exrcurve1.jpg

Image with different white point:
http://www.blender.org/bf/exrcurve2.jpg

Image with white and black point and a curve:
http://www.blender.org/bf/exrcurve3.jpg

Use SHIFT+click to set the black point, and CTRL+click for white point.
The buttons in the panel work too, of course.

The curves work after the black/white range was corrected, so you can
stick to curves with a normal 0-1 range.
There's also now a general color curve, marked with 'C' button.

Note; this currently only maps the float colors to a visible 8 bits per
channel rect. You can save it, but when the blender file loads the curve
or mapping is not executed until you click in the curves... have to look
at that still.
Speed for this is also quite unoptimized... still WIP, but fun!

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_color_types.h b/source/blender/makesdna/DNA_color_types.h
index af83b162bdf..1829398e4e8 100644
--- a/source/blender/makesdna/DNA_color_types.h
+++ b/source/blender/makesdna/DNA_color_types.h
@@ -64,6 +64,8 @@ typedef struct CurveMapping {
 	rctf curr, clipr;				/* current rect, clip rect (is default rect too) */
 	
 	CurveMap cm[4];					/* max 4 builtin curves per mapping struct now */
+	float black[3], white[3];		/* black/white point */
+	float bwmul[3], padf;			/* black/white point multiply value, for speed */
 } CurveMapping;
 
 /* cuma->flag */