Eevee: Update matrices operations to not use combined matrices

1 files changed, 5 insertions, 7 deletions

diff --git a/source/blender/draw/engines/eevee/shaders/prepass_vert.glsl b/source/blender/draw/engines/eevee/shaders/prepass_vert.glsl
index 9196253478a..883862855f3 100644
--- a/source/blender/draw/engines/eevee/shaders/prepass_vert.glsl
+++ b/source/blender/draw/engines/eevee/shaders/prepass_vert.glsl
@@ -19,25 +19,23 @@ void main()
 {
 #ifdef HAIR_SHADER
   float time, thick_time, thickness;
-  vec3 pos, tan, binor;
+  vec3 worldPosition, tan, binor;
   hair_get_pos_tan_binor_time((ProjectionMatrix[3][3] == 0.0),
                               ModelMatrixInverse,
                               ViewMatrixInverse[3].xyz,
                               ViewMatrixInverse[2].xyz,
-                              pos,
+                              worldPosition,
                               tan,
                               binor,
                               time,
                               thickness,
                               thick_time);
-
-  gl_Position = ViewProjectionMatrix * vec4(pos, 1.0);
-  vec4 worldPosition = vec4(pos, 1.0);
 #else
-  gl_Position = ModelViewProjectionMatrix * vec4(pos, 1.0);
-  vec4 worldPosition = (ModelMatrix * vec4(pos, 1.0));
+  vec3 worldPosition = point_object_to_world(pos);
 #endif
 
+  gl_Position = point_world_to_ndc(worldPosition);
+
 #ifdef CLIP_PLANES
   gl_ClipDistance[0] = dot(vec4(worldPosition.xyz, 1.0), ClipPlanes[0]);
 #endif