1 files changed, 4 insertions, 6 deletions
diff --git a/source/blender/gpu/shaders/gpu_shader_instance_variying_size_variying_id_vert.glsl b/source/blender/gpu/shaders/gpu_shader_instance_variying_size_variying_id_vert.glsl
index 130f46e1e33..32db8d17572 100644
--- a/source/blender/gpu/shaders/gpu_shader_instance_variying_size_variying_id_vert.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_instance_variying_size_variying_id_vert.glsl
@@ -1,8 +1,6 @@
 
 uniform mat4 ViewProjectionMatrix;
-#ifdef USE_WORLD_CLIP_PLANES
-uniform mat4 ModelMatrix;
-#endif
+
 uniform int baseId;
 
 /* ---- Instantiated Attrs ---- */
@@ -21,11 +19,11 @@ flat out uint finalId;
 
 void main()
 {
-  vec4 pos_4d = vec4(pos * size, 1.0);
-  gl_Position = ViewProjectionMatrix * InstanceModelMatrix * pos_4d;
+  vec4 wPos = InstanceModelMatrix * vec4(pos * size, 1.0);
+  gl_Position = ViewProjectionMatrix * wPos;
   finalId = uint(baseId + callId);
 
 #ifdef USE_WORLD_CLIP_PLANES
-  world_clip_planes_calc_clip_distance((ModelMatrix * InstanceModelMatrix * pos_4d).xyz);
+  world_clip_planes_calc_clip_distance(wPos.xyz);
 #endif
 }