EEVEE: Viewport Renderpasses

This patch will allow the user to select the EEVEE renderpass to be
shown in the viewport by default the combined pass will be shown.

Limitations:

* Viewport rendering stores the result in a `RenderResult`. RenderResult
  is not aware of the type of data it holds. In many places where RenderResult
  is used it is assumed that it stores a combined pass and the display+view
  transform are applied.

  I will propose to fix this in a future patch. But that is still being
  designed and discussed.

Reviewed By: fclem

Differential Revision: https://developer.blender.org/D6319

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_view3d_types.h b/source/blender/makesdna/DNA_view3d_types.h
index 7b832f1b646..a9a20980677 100644
--- a/source/blender/makesdna/DNA_view3d_types.h
+++ b/source/blender/makesdna/DNA_view3d_types.h
@@ -179,6 +179,10 @@ typedef struct View3DShading {
   float curvature_ridge_factor;
   float curvature_valley_factor;
 
+  /* Render pass displayed in the viewport. Is an `eScenePassType` where one bit is set */
+  int render_pass;
+  char _pad2[4];
+
   struct IDProperty *prop;
 } View3DShading;