1 files changed, 37 insertions, 44 deletions

diff --git a/source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc b/source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
index 4c378d9bc09..e49a39b5a4a 100644
--- a/source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
+++ b/source/blender/nodes/shader/nodes/node_shader_bsdf_principled.cc
@@ -144,8 +144,6 @@ static int node_shader_gpu_bsdf_principled(GPUMaterial *mat,
                                            GPUNodeStack *in,
                                            GPUNodeStack *out)
 {
-  GPUNodeLink *sss_scale;
-
   /* Normals */
   if (!in[22].link) {
     GPU_link(mat, "world_normals_get", &in[22].link);
@@ -161,36 +159,17 @@ static int node_shader_gpu_bsdf_principled(GPUMaterial *mat,
   if (!in[24].link) {
     GPUNodeLink *orco = GPU_attribute(CD_ORCO, "");
     GPU_link(mat, "tangent_orco_z", orco, &in[24].link);
-    GPU_link(mat,
-             "node_tangent",
-             GPU_builtin(GPU_WORLD_NORMAL),
-             in[24].link,
-             GPU_builtin(GPU_OBJECT_MATRIX),
-             &in[24].link);
+    GPU_link(mat, "node_tangent", in[24].link, &in[24].link);
   }
 #endif
 
   bool use_diffuse = socket_not_one(6) && socket_not_one(17);
-  bool use_subsurf = socket_not_zero(1) && use_diffuse && node->sss_id > 0;
+  bool use_subsurf = socket_not_zero(1) && use_diffuse;
   bool use_refract = socket_not_one(6) && socket_not_zero(17);
-  bool use_clear = socket_not_zero(14);
+  bool use_transparency = socket_not_one(21);
+  // bool use_clear = socket_not_zero(14);
 
-  /* SSS Profile */
-  if (use_subsurf) {
-    bNodeSocket *socket = (bNodeSocket *)BLI_findlink(&node->original->inputs, 2);
-    bNodeSocketValueRGBA *socket_data = (bNodeSocketValueRGBA *)socket->default_value;
-    /* For some reason it seems that the socket value is in ARGB format. */
-    GPU_material_sss_profile_create(mat, &socket_data->value[1]);
-  }
-
-  if (in[2].link) {
-    sss_scale = in[2].link;
-  }
-  else {
-    GPU_link(mat, "set_rgb_one", &sss_scale);
-  }
-
-  uint flag = GPU_MATFLAG_GLOSSY;
+  eGPUMaterialFlag flag = GPU_MATFLAG_GLOSSY;
   if (use_diffuse) {
     flag |= GPU_MATFLAG_DIFFUSE;
   }
@@ -198,28 +177,42 @@ static int node_shader_gpu_bsdf_principled(GPUMaterial *mat,
     flag |= GPU_MATFLAG_REFRACT;
   }
   if (use_subsurf) {
-    flag |= GPU_MATFLAG_SSS;
+    flag |= GPU_MATFLAG_SUBSURFACE;
+  }
+  if (use_transparency) {
+    flag |= GPU_MATFLAG_TRANSPARENT;
   }
 
-  float f_use_diffuse = use_diffuse ? 1.0f : 0.0f;
-  float f_use_clearcoat = use_clear ? 1.0f : 0.0f;
-  float f_use_refraction = use_refract ? 1.0f : 0.0f;
   float use_multi_scatter = (node->custom1 == SHD_GLOSSY_MULTI_GGX) ? 1.0f : 0.0f;
 
-  GPU_material_flag_set(mat, (eGPUMatFlag)flag);
-
-  return GPU_stack_link(mat,
-                        node,
-                        "node_bsdf_principled",
-                        in,
-                        out,
-                        GPU_constant(&f_use_diffuse),
-                        GPU_constant(&f_use_clearcoat),
-                        GPU_constant(&f_use_refraction),
-                        GPU_constant(&use_multi_scatter),
-                        GPU_constant(&node->ssr_id),
-                        GPU_constant(&node->sss_id),
-                        sss_scale);
+  GPU_material_flag_set(mat, flag);
+
+  GPUNodeLink *diffuse_weight, *specular_weight, *glass_reflection_weight,
+      *glass_transmission_weight, *clearcoat_weight;
+
+  GPU_stack_link(mat,
+                 node,
+                 "node_bsdf_principled",
+                 in,
+                 out,
+                 GPU_constant(&use_multi_scatter),
+                 &diffuse_weight,
+                 &specular_weight,
+                 &glass_reflection_weight,
+                 &glass_transmission_weight,
+                 &clearcoat_weight);
+
+  return GPU_stack_eval_link(mat,
+                             node,
+                             "node_bsdf_principled_eval",
+                             in,
+                             out,
+                             GPU_constant(&use_multi_scatter),
+                             diffuse_weight,
+                             specular_weight,
+                             glass_reflection_weight,
+                             glass_transmission_weight,
+                             clearcoat_weight);
 }
 
 static void node_shader_update_principled(bNodeTree *ntree, bNode *node)