Commit: 8cca1abcb1fef6213d694cada5ad7f5fb650b62c
Author: Jeroen Bakker
Date:   Tue Jun 12 11:50:07 2018 +0200
Branches: blender2.8
https://developer.blender.org/rB8cca1abcb1fef6213d694cada5ad7f5fb650b62c

Studiolight: Bumped the radiance buffer to RGBA16F

Fixes issue reported at
https://devtalk.blender.org/t/lookdev-ibl-result/890/3

===================================================================

M       source/blender/blenkernel/intern/studiolight.c

===================================================================

diff --git a/source/blender/blenkernel/intern/studiolight.c 
b/source/blender/blenkernel/intern/studiolight.c
index 4dfafdccc47..3d7777e43d5 100644
--- a/source/blender/blenkernel/intern/studiolight.c
+++ b/source/blender/blenkernel/intern/studiolight.c
@@ -182,7 +182,7 @@ static void 
studiolight_create_equierectangular_radiance_gputexture(StudioLight
                char error[256];
                BKE_studiolight_ensure_flag(sl, 
STUDIOLIGHT_EXTERNAL_IMAGE_LOADED);
                ImBuf *ibuf = sl->equirectangular_radiance_buffer;
-               sl->equirectangular_radiance_gputexture = 
GPU_texture_create_2D(ibuf->x, ibuf->y, GPU_RGBA8, ibuf->rect_float, error);
+               sl->equirectangular_radiance_gputexture = 
GPU_texture_create_2D(ibuf->x, ibuf->y, GPU_RGBA16F, ibuf->rect_float, error);
                GPUTexture *tex = sl->equirectangular_radiance_gputexture;
                GPU_texture_bind(tex, 0);
                GPU_texture_filter_mode(tex, true);

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