Improvements to Blenders color balance (lift/gamma/gain).

Fairly closely match some mac application colin has called 'Looks', to give better results.
- lift is now applied non linear (was being added to the color)
- change the color wheel to preserve the luminance of the gamma and gain values, this stops the color from being set too dark (option for the color wheel template).
- sub-pixel precission for the color wheel since the white area at the center can make a lot of difference with a very small change.

This change will make existing node and sequencer setups lift render slighly differently however discussed this with Ton and he's ok with it.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_ui_api.c b/source/blender/makesrna/intern/rna_ui_api.c
index 16864985289..6cf0768b192 100644
--- a/source/blender/makesrna/intern/rna_ui_api.c
+++ b/source/blender/makesrna/intern/rna_ui_api.c
@@ -360,6 +360,7 @@ void RNA_api_ui_layout(StructRNA *srna)
 	api_ui_item_rna_common(func);
 	RNA_def_boolean(func, "value_slider", 0, "", "Display the value slider to the right of the color wheel");
 	RNA_def_boolean(func, "lock", 0, "", "Lock the color wheel display to value 1.0 regardless of actual color");
+	RNA_def_boolean(func, "lock_luminosity", 0, "", "Keep the color at its original vector length");
 	
 	func= RNA_def_function(srna, "template_triColorSet", "uiTemplateTriColorSet");
 	api_ui_item_rna_common(func);