Viewport Rendering: Don't clamp when overlays are disabled.

During viewport rendering the color values were clamped in order to
apply the overlay on top of it. This clamping would show the scene
colors washed out.

This patch adds a work around to skip the clamping when the overlays are
turned off.

Parial fix for {T77909}

1 files changed, 4 insertions, 2 deletions

diff --git a/source/blender/gpu/GPU_viewport.h b/source/blender/gpu/GPU_viewport.h
index d8e4c5377b0..095e17f344e 100644
--- a/source/blender/gpu/GPU_viewport.h
+++ b/source/blender/gpu/GPU_viewport.h
@@ -114,7 +114,8 @@ void GPU_viewport_draw_to_screen(GPUViewport *viewport, int view, const rcti *re
 void GPU_viewport_draw_to_screen_ex(GPUViewport *viewport,
                                     int view,
                                     const rcti *rect,
-                                    bool display_colorspace);
+                                    bool display_colorspace,
+                                    bool do_overlay_merge);
 void GPU_viewport_free(GPUViewport *viewport);
 
 void GPU_viewport_colorspace_set(GPUViewport *viewport,
@@ -125,7 +126,8 @@ void GPU_viewport_colorspace_set(GPUViewport *viewport,
 void GPU_viewport_bind_from_offscreen(GPUViewport *viewport, struct GPUOffScreen *ofs);
 void GPU_viewport_unbind_from_offscreen(GPUViewport *viewport,
                                         struct GPUOffScreen *ofs,
-                                        bool display_colorspace);
+                                        bool display_colorspace,
+                                        bool do_overlay_merge);
 
 ViewportMemoryPool *GPU_viewport_mempool_get(GPUViewport *viewport);
 struct DRWInstanceDataList *GPU_viewport_instance_data_list_get(GPUViewport *viewport);