EEVEE-Next: Add back background opacity toggle

1 files changed, 7 insertions, 1 deletions

diff --git a/source/blender/draw/engines/eevee_next/eevee_film.cc b/source/blender/draw/engines/eevee_next/eevee_film.cc
index ae84ea249b7..cdd753b988d 100644
--- a/source/blender/draw/engines/eevee_next/eevee_film.cc
+++ b/source/blender/draw/engines/eevee_next/eevee_film.cc
@@ -147,7 +147,8 @@ void Film::sync_mist()
 inline bool operator==(const FilmData &a, const FilmData &b)
 {
   return (a.extent == b.extent) && (a.offset == b.offset) &&
-         (a.filter_radius == b.filter_radius) && (a.scaling_factor == b.scaling_factor);
+         (a.filter_radius == b.filter_radius) && (a.scaling_factor == b.scaling_factor) &&
+         (a.background_opacity == b.background_opacity);
 }
 
 inline bool operator!=(const FilmData &a, const FilmData &b)
@@ -238,6 +239,11 @@ void Film::init(const int2 &extent, const rcti *output_rect)
      * We need to figure out LOD bias first in order to preserve texture crispiness. */
     data.scaling_factor = 1;
 
+    data.background_opacity = (scene.r.alphamode == R_ALPHAPREMUL) ? 0.0f : 1.0f;
+    if (inst_.is_viewport() && false /* TODO(fclem): StudioLight */) {
+      data.background_opacity = inst_.v3d->shading.studiolight_background;
+    }
+
     FilmData &data_prev_ = data_;
     if (assign_if_different(data_prev_, data)) {
       sampling.reset();