fix

1 files changed, 9 insertions, 0 deletions

diff --git a/source/blender/nodes/shader/nodes/node_shader_mixRgb.cc b/source/blender/nodes/shader/nodes/node_shader_mixRgb.cc
index 9770ae11c08..ade35a40366 100644
--- a/source/blender/nodes/shader/nodes/node_shader_mixRgb.cc
+++ b/source/blender/nodes/shader/nodes/node_shader_mixRgb.cc
@@ -174,6 +174,14 @@ class MixRGBFunction : public blender::fn::MultiFunction {
   }
 };
 
+static void sh_node_mix_rgb_build_multi_function(blender::nodes::NodeMultiFunctionBuilder &builder)
+{
+  bNode &node = builder.node();
+  bool clamp = node.custom2 & SHD_MIXRGB_CLAMP;
+  int mix_type = node.custom1;
+  builder.construct_and_set_matching_fn<MixRGBFunction>(clamp, mix_type);
+}
+
 void register_node_type_sh_mix_rgb(void)
 {
   static bNodeType ntype;
@@ -183,6 +191,7 @@ void register_node_type_sh_mix_rgb(void)
   node_type_label(&ntype, node_blend_label);
   node_type_exec(&ntype, nullptr, nullptr, node_shader_exec_mix_rgb);
   node_type_gpu(&ntype, gpu_shader_mix_rgb);
+  ntype.build_multi_function = sh_node_mix_rgb_build_multi_function;
 
   nodeRegisterType(&ntype);
 }