1 files changed, 59 insertions, 1 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_map_value.cc b/source/blender/nodes/composite/nodes/node_composite_map_value.cc
index b069cce93fc..e30de39605d 100644
--- a/source/blender/nodes/composite/nodes/node_composite_map_value.cc
+++ b/source/blender/nodes/composite/nodes/node_composite_map_value.cc
@@ -5,20 +5,32 @@
  * \ingroup cmpnodes
  */
 
+#include "BKE_texture.h"
+
 #include "RNA_access.h"
 
 #include "UI_interface.h"
 #include "UI_resources.h"
 
+#include "GPU_material.h"
+
+#include "COM_shader_node.hh"
+
 #include "node_composite_util.hh"
 
 /* **************** MAP VALUE ******************** */
 
 namespace blender::nodes::node_composite_map_value_cc {
 
+NODE_STORAGE_FUNCS(TexMapping)
+
 static void cmp_node_map_value_declare(NodeDeclarationBuilder &b)
 {
-  b.add_input<decl::Float>(N_("Value")).default_value(1.0f).min(0.0f).max(1.0f);
+  b.add_input<decl::Float>(N_("Value"))
+      .default_value(1.0f)
+      .min(0.0f)
+      .max(1.0f)
+      .compositor_domain_priority(0);
   b.add_output<decl::Float>(N_("Value"));
 }
 
@@ -48,6 +60,51 @@ static void node_composit_buts_map_value(uiLayout *layout, bContext *UNUSED(C),
   uiItemR(sub, ptr, "max", UI_ITEM_R_SPLIT_EMPTY_NAME, "", ICON_NONE);
 }
 
+using namespace blender::realtime_compositor;
+
+class MapValueShaderNode : public ShaderNode {
+ public:
+  using ShaderNode::ShaderNode;
+
+  void compile(GPUMaterial *material) override
+  {
+    GPUNodeStack *inputs = get_inputs_array();
+    GPUNodeStack *outputs = get_outputs_array();
+
+    const TexMapping &texture_mapping = node_storage(bnode());
+
+    const float use_min = get_use_min();
+    const float use_max = get_use_max();
+
+    GPU_stack_link(material,
+                   &bnode(),
+                   "node_composite_map_value",
+                   inputs,
+                   outputs,
+                   GPU_uniform(texture_mapping.loc),
+                   GPU_uniform(texture_mapping.size),
+                   GPU_constant(&use_min),
+                   GPU_uniform(texture_mapping.min),
+                   GPU_constant(&use_max),
+                   GPU_uniform(texture_mapping.max));
+  }
+
+  bool get_use_min()
+  {
+    return node_storage(bnode()).flag & TEXMAP_CLIP_MIN;
+  }
+
+  bool get_use_max()
+  {
+    return node_storage(bnode()).flag & TEXMAP_CLIP_MAX;
+  }
+};
+
+static ShaderNode *get_compositor_shader_node(DNode node)
+{
+  return new MapValueShaderNode(node);
+}
+
 }  // namespace blender::nodes::node_composite_map_value_cc
 
 void register_node_type_cmp_map_value()
@@ -61,6 +118,7 @@ void register_node_type_cmp_map_value()
   ntype.draw_buttons = file_ns::node_composit_buts_map_value;
   node_type_init(&ntype, file_ns::node_composit_init_map_value);
   node_type_storage(&ntype, "TexMapping", node_free_standard_storage, node_copy_standard_storage);
+  ntype.get_compositor_shader_node = file_ns::get_compositor_shader_node;
 
   nodeRegisterType(&ntype);
 }