Fix T82385 EEVEE: Alpha Clip shadows actually using Alpha Hashed shadows

The shadow path was not using the alpha threshold.

1 files changed, 17 insertions, 6 deletions

diff --git a/source/blender/nodes/shader/nodes/node_shader_output_material.c b/source/blender/nodes/shader/nodes/node_shader_output_material.c
index 578262e9f17..fb0b6e7b263 100644
--- a/source/blender/nodes/shader/nodes/node_shader_output_material.c
+++ b/source/blender/nodes/shader/nodes/node_shader_output_material.c
@@ -45,18 +45,29 @@ static int node_shader_gpu_output_material(GPUMaterial *mat,
                                            GPUNodeStack *in,
                                            GPUNodeStack *out)
 {
-  GPUNodeLink *outlink, *alpha_threshold_link;
-
+  GPUNodeLink *outlink, *alpha_threshold_link, *shadow_threshold_link;
   Material *ma = GPU_material_get_material(mat);
-  if (ma && ma->blend_method == MA_BM_CLIP) {
-    alpha_threshold_link = GPU_uniform(&ma->alpha_threshold);
+
+  static float no_alpha_threshold = -1.0f;
+  if (ma) {
+    alpha_threshold_link = GPU_uniform((ma->blend_method == MA_BM_CLIP) ? &ma->alpha_threshold :
+                                                                          &no_alpha_threshold);
+    shadow_threshold_link = GPU_uniform((ma->blend_shadow == MA_BS_CLIP) ? &ma->alpha_threshold :
+                                                                           &no_alpha_threshold);
   }
   else {
-    static float no_alpha_threshold = -1.0f;
     alpha_threshold_link = GPU_uniform(&no_alpha_threshold);
+    shadow_threshold_link = GPU_uniform(&no_alpha_threshold);
   }
 
-  GPU_stack_link(mat, node, "node_output_material", in, out, alpha_threshold_link, &outlink);
+  GPU_stack_link(mat,
+                 node,
+                 "node_output_material",
+                 in,
+                 out,
+                 alpha_threshold_link,
+                 shadow_threshold_link,
+                 &outlink);
   GPU_material_output_link(mat, outlink);
 
   return true;