EEVEE: Fix missing function implementation for volumetric materials

This was leading to linking errors.

Fixes T97779 Regression: World volume noise stopped working

2 files changed, 21 insertions, 1 deletions

diff --git a/source/blender/draw/engines/eevee/shaders/closure_type_lib.glsl b/source/blender/draw/engines/eevee/shaders/closure_type_lib.glsl
index 492b78a20b6..9698b5ea6f5 100644
--- a/source/blender/draw/engines/eevee/shaders/closure_type_lib.glsl
+++ b/source/blender/draw/engines/eevee/shaders/closure_type_lib.glsl
@@ -49,7 +49,7 @@ struct Closure {
 #ifndef GPU_METAL
 /* Prototype */
 Closure nodetree_exec();
-vec4 closure_to_rgba(Closure);
+vec4 closure_to_rgba(Closure cl);
 void output_aov(vec4 color, float value, uint hash);
 vec3 coordinate_camera(vec3 P);
 vec3 coordinate_screen(vec3 P);
diff --git a/source/blender/draw/engines/eevee/shaders/volumetric_vert.glsl b/source/blender/draw/engines/eevee/shaders/volumetric_vert.glsl
index b574e8cdb4c..ce863bdf660 100644
--- a/source/blender/draw/engines/eevee/shaders/volumetric_vert.glsl
+++ b/source/blender/draw/engines/eevee/shaders/volumetric_vert.glsl
@@ -57,3 +57,23 @@ float F_eta(float a, float b)
 {
   return 0.0;
 }
+
+vec3 coordinate_camera(vec3 P)
+{
+  return vec3(0.0);
+}
+
+vec3 coordinate_screen(vec3 P)
+{
+  return vec3(0.0);
+}
+
+vec3 coordinate_reflect(vec3 P, vec3 N)
+{
+  return vec3(0.0);
+}
+
+vec3 coordinate_incoming(vec3 P)
+{
+  return vec3(0.0);
+}
\ No newline at end of file