source/blender/nodes/shader/CMakeLists.txt

@@ -160,6 +160,7 @@ if(WITH_MATERIALX)
     materialx/nodes/bsdf_translucent.cc
     materialx/nodes/bsdf_transparent.cc
     materialx/nodes/clamp.cc
+    materialx/nodes/color_ramp.cc
     materialx/nodes/curves.cc
     materialx/nodes/gamma.cc
     materialx/nodes/emission.cc

source/blender/nodes/shader/materialx/nodes/color_ramp.cc

@@ -0,0 +1,15 @@
+/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include "node_parser.h"
+
+namespace blender::nodes::materialx {
+
+NodeItem ColorRampNodeParser::compute()
+{
+  /* TODO: implement */
+  return empty();
+}
+
+}  // namespace blender::nodes::materialx

source/blender/nodes/shader/materialx/nodes/node_parser.cc

@@ -152,6 +152,7 @@ NodeItem NodeParser::get_input_link(const bNodeSocket &socket, NodeItem::Type to
     CASE_NODE_TYPE(SH_NODE_BLACKBODY, BlackbodyNodeParser)
     CASE_NODE_TYPE(SH_NODE_BRIGHTCONTRAST, BrightContrastNodeParser)
     CASE_NODE_TYPE(SH_NODE_CLAMP, ClampNodeParser)
+    CASE_NODE_TYPE(SH_NODE_VALTORGB, ColorRampNodeParser)
     CASE_NODE_TYPE(SH_NODE_CURVE_FLOAT, CurvesFloatNodeParser)
     CASE_NODE_TYPE(SH_NODE_CURVE_RGB, CurvesRGBNodeParser)
     CASE_NODE_TYPE(SH_NODE_GAMMA, GammaNodeParser)

source/blender/nodes/shader/materialx/nodes/node_parser.h

@@ -94,6 +94,7 @@ template<class T> NodeItem NodeParser::val(const T &data) const
 DECLARE_NODE_PARSER(BlackbodyNodeParser)
 DECLARE_NODE_PARSER(BrightContrastNodeParser)
 DECLARE_NODE_PARSER(ClampNodeParser)
+DECLARE_NODE_PARSER(ColorRampNodeParser)
 DECLARE_NODE_PARSER(CurvesFloatNodeParser)
 DECLARE_NODE_PARSER(CurvesRGBNodeParser)
 DECLARE_NODE_PARSER(CombineColorNodeParser)