1 files changed, 40 insertions, 2 deletions

diff --git a/source/blender/nodes/composite/nodes/node_composite_setalpha.cc b/source/blender/nodes/composite/nodes/node_composite_setalpha.cc
index 8aeaafbbf67..df3aca2c665 100644
--- a/source/blender/nodes/composite/nodes/node_composite_setalpha.cc
+++ b/source/blender/nodes/composite/nodes/node_composite_setalpha.cc
@@ -8,16 +8,28 @@
 #include "UI_interface.h"
 #include "UI_resources.h"
 
+#include "GPU_material.h"
+
+#include "COM_shader_node.hh"
+
 #include "node_composite_util.hh"
 
 /* **************** SET ALPHA ******************** */
 
 namespace blender::nodes::node_composite_setalpha_cc {
 
+NODE_STORAGE_FUNCS(NodeSetAlpha)
+
 static void cmp_node_setalpha_declare(NodeDeclarationBuilder &b)
 {
-  b.add_input<decl::Color>(N_("Image")).default_value({1.0f, 1.0f, 1.0f, 1.0f});
-  b.add_input<decl::Float>(N_("Alpha")).default_value(1.0f).min(0.0f).max(1.0f);
+  b.add_input<decl::Color>(N_("Image"))
+      .default_value({1.0f, 1.0f, 1.0f, 1.0f})
+      .compositor_domain_priority(0);
+  b.add_input<decl::Float>(N_("Alpha"))
+      .default_value(1.0f)
+      .min(0.0f)
+      .max(1.0f)
+      .compositor_domain_priority(1);
   b.add_output<decl::Color>(N_("Image"));
 }
 
@@ -33,6 +45,31 @@ static void node_composit_buts_set_alpha(uiLayout *layout, bContext *UNUSED(C),
   uiItemR(layout, ptr, "mode", UI_ITEM_R_SPLIT_EMPTY_NAME, nullptr, ICON_NONE);
 }
 
+using namespace blender::realtime_compositor;
+
+class SetAlphaShaderNode : public ShaderNode {
+ public:
+  using ShaderNode::ShaderNode;
+
+  void compile(GPUMaterial *material) override
+  {
+    GPUNodeStack *inputs = get_inputs_array();
+    GPUNodeStack *outputs = get_outputs_array();
+
+    if (node_storage(bnode()).mode == CMP_NODE_SETALPHA_MODE_APPLY) {
+      GPU_stack_link(material, &bnode(), "node_composite_set_alpha_apply", inputs, outputs);
+      return;
+    }
+
+    GPU_stack_link(material, &bnode(), "node_composite_set_alpha_replace", inputs, outputs);
+  }
+};
+
+static ShaderNode *get_compositor_shader_node(DNode node)
+{
+  return new SetAlphaShaderNode(node);
+}
+
 }  // namespace blender::nodes::node_composite_setalpha_cc
 
 void register_node_type_cmp_setalpha()
@@ -47,6 +84,7 @@ void register_node_type_cmp_setalpha()
   node_type_init(&ntype, file_ns::node_composit_init_setalpha);
   node_type_storage(
       &ntype, "NodeSetAlpha", node_free_standard_storage, node_copy_standard_storage);
+  ntype.get_compositor_shader_node = file_ns::get_compositor_shader_node;
 
   nodeRegisterType(&ntype);
 }