Fix T86660 EEVEE: Undefined behaviour in specular_occlusion

Define visibility error to be 1 by default to avoid undefined behaviour.
2021-03-20 21:58:04 +01:00
parent 057292e75a
commit 9ca67c47a1
1 changed files with 3 additions and 0 deletions
--- a/source/blender/draw/engines/eevee/shaders/ambient_occlusion_lib.glsl
+++ b/source/blender/draw/engines/eevee/shaders/ambient_occlusion_lib.glsl
@@ -198,6 +198,9 @@ void occlusion_eval(OcclusionData data,
                    out float visibility_error,
                    out vec3 bent_normal)
 {
+  /* No error by default. */
+  visibility_error = 1.0;
+
  if ((int(aoSettings) & USE_AO) == 0) {
    visibility = data.custom_occlusion;
    bent_normal = N;