Eevee: DOF: Optimization: Move some operations out of the shader

1 files changed, 4 insertions, 5 deletions

diff --git a/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl b/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl
index 6aa771bcbd5..91a4ca99f7e 100644
--- a/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl
+++ b/source/blender/draw/engines/eevee/shaders/effect_dof_frag.glsl
@@ -4,11 +4,10 @@ uniform mat4 ProjectionMatrix;
 uniform sampler2D colorBuffer;
 uniform sampler2D depthBuffer;
 
-uniform vec3 dofParams;
+uniform vec2 dofParams;
 
-#define dof_aperturesize    dofParams.x
-#define dof_distance        dofParams.y
-#define dof_invsensorsize   dofParams.z
+#define dof_mul    dofParams.x /* distance * aperturesize * invsensorsize */
+#define dof_bias   dofParams.y /* aperturesize * invsensorsize */
 
 uniform vec4 bokehParams[2];
 
@@ -25,7 +24,7 @@ uniform vec2 nearFar; /* Near & far view depths values */
 /* -------------- Utils ------------- */
 
 /* divide by sensor size to get the normalized size */
-#define calculate_coc(zdepth) (dof_aperturesize * (dof_distance / zdepth - 1.0) * dof_invsensorsize)
+#define calculate_coc(zdepth) (dof_mul / zdepth - dof_bias)
 
 #define linear_depth(z) ((ProjectionMatrix[3][3] == 0.0) \
 		? (nearFar.x  * nearFar.y) / (z * (nearFar.x - nearFar.y) + nearFar.y) \