Fix T67832: Camera Background Images View Transform

This patch will apply the view transform when a movie clip is used as
camera background image. It does this by rendering the image in the
color buffer when it needs the view transform. For other images it uses
the overlay buffer.

Reviewed By: Clément Foucault

Differential Revision: https://developer.blender.org/D7067

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/draw/engines/overlay/overlay_engine.c b/source/blender/draw/engines/overlay/overlay_engine.c
index 30b39e5d5e1..e49b2e45580 100644
--- a/source/blender/draw/engines/overlay/overlay_engine.c
+++ b/source/blender/draw/engines/overlay/overlay_engine.c
@@ -509,6 +509,11 @@ static void OVERLAY_draw_scene(void *vedata)
   OVERLAY_FramebufferList *fbl = data->fbl;
   DefaultFramebufferList *dfbl = DRW_viewport_framebuffer_list_get();
 
+  /* Needs to be done first as it modifies the scene color and depth buffer. */
+  if (!pd->is_image_editor) {
+    OVERLAY_image_scene_background_draw(vedata);
+  }
+
   if (DRW_state_is_fbo()) {
     const float clear_col[4] = {0.0f, 0.0f, 0.0f, 0.0f};
     GPU_framebuffer_bind(dfbl->overlay_only_fb);