Geometry Nodes: Add Color input node

Adds a color input node with picker.

Differential Revision: https://developer.blender.org/D12793

8 files changed, 87 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_node.h b/source/blender/blenkernel/BKE_node.h
index e0aeb6e875f..81cf1ed180f 100644
--- a/source/blender/blenkernel/BKE_node.h
+++ b/source/blender/blenkernel/BKE_node.h
@@ -1550,6 +1550,7 @@ int ntreeTexExecTree(struct bNodeTree *ntree,
 #define FN_NODE_RANDOM_VALUE 1214
 #define FN_NODE_ROTATE_EULER 1215
 #define FN_NODE_ALIGN_EULER_TO_VECTOR 1216
+#define FN_NODE_INPUT_COLOR 1217
 
 /** \} */
 
diff --git a/source/blender/blenkernel/intern/node.cc b/source/blender/blenkernel/intern/node.cc
index 41f9bf46b81..3e577bc29a3 100644
--- a/source/blender/blenkernel/intern/node.cc
+++ b/source/blender/blenkernel/intern/node.cc
@@ -5841,6 +5841,7 @@ static void registerFunctionNodes()
   register_node_type_fn_input_special_characters();
   register_node_type_fn_input_string();
   register_node_type_fn_input_vector();
+  register_node_type_fn_input_color();
   register_node_type_fn_random_value();
   register_node_type_fn_rotate_euler();
   register_node_type_fn_string_length();
diff --git a/source/blender/makesdna/DNA_node_types.h b/source/blender/makesdna/DNA_node_types.h
index 74465c4bbe0..affe017feed 100644
--- a/source/blender/makesdna/DNA_node_types.h
+++ b/source/blender/makesdna/DNA_node_types.h
@@ -1295,6 +1295,10 @@ typedef struct NodeInputVector {
   float vector[3];
 } NodeInputVector;
 
+typedef struct NodeInputColor {
+  float color[4];
+} NodeInputColor;
+
 typedef struct NodeInputString {
   char *string;
 } NodeInputString;
diff --git a/source/blender/makesrna/intern/rna_nodetree.c b/source/blender/makesrna/intern/rna_nodetree.c
index 79fae204e34..f52173b45d4 100644
--- a/source/blender/makesrna/intern/rna_nodetree.c
+++ b/source/blender/makesrna/intern/rna_nodetree.c
@@ -4988,6 +4988,19 @@ static void def_texture(StructRNA *srna)
   RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
 }
 
+static void def_fn_input_color(StructRNA *srna)
+{
+  PropertyRNA *prop;
+
+  RNA_def_struct_sdna_from(srna, "NodeInputColor", "storage");
+
+  prop = RNA_def_property(srna, "color", PROP_FLOAT, PROP_COLOR);
+  RNA_def_property_array(prop, 4);
+  RNA_def_property_float_sdna(prop, NULL, "color");
+  RNA_def_property_ui_text(prop, "Color", "");
+  RNA_def_property_update(prop, NC_NODE | NA_EDITED, "rna_Node_update");
+}
+
 static void def_fn_input_vector(StructRNA *srna)
 {
   PropertyRNA *prop;
diff --git a/source/blender/nodes/CMakeLists.txt b/source/blender/nodes/CMakeLists.txt
index a4e8df3164c..f22b890b243 100644
--- a/source/blender/nodes/CMakeLists.txt
+++ b/source/blender/nodes/CMakeLists.txt
@@ -142,6 +142,7 @@ set(SRC
   function/nodes/node_fn_input_special_characters.cc
   function/nodes/node_fn_input_string.cc
   function/nodes/node_fn_input_vector.cc
+  function/nodes/node_fn_input_color.cc
   function/nodes/node_fn_random_value.cc
   function/nodes/node_fn_rotate_euler.cc
   function/nodes/node_fn_string_length.cc
diff --git a/source/blender/nodes/NOD_function.h b/source/blender/nodes/NOD_function.h
index 395a2d68b53..999162b1803 100644
--- a/source/blender/nodes/NOD_function.h
+++ b/source/blender/nodes/NOD_function.h
@@ -29,6 +29,7 @@ void register_node_type_fn_float_to_int(void);
 void register_node_type_fn_input_special_characters(void);
 void register_node_type_fn_input_string(void);
 void register_node_type_fn_input_vector(void);
+void register_node_type_fn_input_color(void);
 void register_node_type_fn_random_value(void);
 void register_node_type_fn_rotate_euler(void);
 void register_node_type_fn_string_length(void);
diff --git a/source/blender/nodes/NOD_static_types.h b/source/blender/nodes/NOD_static_types.h
index e43f471d1e3..d4cc7b42292 100644
--- a/source/blender/nodes/NOD_static_types.h
+++ b/source/blender/nodes/NOD_static_types.h
@@ -269,6 +269,7 @@ DefNode(FunctionNode, FN_NODE_ALIGN_EULER_TO_VECTOR, def_fn_align_euler_to_vecto
 DefNode(FunctionNode, FN_NODE_BOOLEAN_MATH,  def_boolean_math,  "BOOLEAN_MATH",  BooleanMath,  "Boolean Math", "")
 DefNode(FunctionNode, FN_NODE_FLOAT_COMPARE, def_float_compare, "FLOAT_COMPARE", FloatCompare, "Compare Floats", "")
 DefNode(FunctionNode, FN_NODE_FLOAT_TO_INT, def_float_to_int, "FLOAT_TO_INT", FloatToInt, "Float to Integer", "")
+DefNode(FunctionNode, FN_NODE_INPUT_COLOR, def_fn_input_color, "INPUT_COLOR", InputColor, "Color", "")
 DefNode(FunctionNode, FN_NODE_INPUT_SPECIAL_CHARACTERS, 0, "INPUT_SPECIAL_CHARACTERS", InputSpecialCharacters, "Special Characters", "")
 DefNode(FunctionNode, FN_NODE_INPUT_STRING, def_fn_input_string, "INPUT_STRING", InputString, "String", "")
 DefNode(FunctionNode, FN_NODE_INPUT_VECTOR, def_fn_input_vector, "INPUT_VECTOR", InputVector, "Vector", "")
diff --git a/source/blender/nodes/function/nodes/node_fn_input_color.cc b/source/blender/nodes/function/nodes/node_fn_input_color.cc
new file mode 100644
index 00000000000..5dc211da1b2
--- /dev/null
+++ b/source/blender/nodes/function/nodes/node_fn_input_color.cc
@@ -0,0 +1,65 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "node_function_util.hh"
+
+#include "UI_interface.h"
+#include "UI_resources.h"
+
+namespace blender::nodes {
+
+static void fn_node_input_color_declare(NodeDeclarationBuilder &b)
+{
+  b.add_output<decl::Color>("Color");
+};
+
+static void fn_node_input_color_layout(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
+{
+  uiTemplateColorPicker(layout, ptr, "color", true, false, false, true);
+  uiItemR(layout, ptr, "color", UI_ITEM_R_SPLIT_EMPTY_NAME, "", ICON_NONE);
+}
+
+static void fn_node_color_input_build_multi_function(
+    blender::nodes::NodeMultiFunctionBuilder &builder)
+{
+  bNode &bnode = builder.node();
+  NodeInputColor *node_storage = static_cast<NodeInputColor *>(bnode.storage);
+  blender::ColorGeometry4f color = (ColorGeometry4f)node_storage->color;
+  builder.construct_and_set_matching_fn<blender::fn::CustomMF_Constant<ColorGeometry4f>>(color);
+}
+
+static void fn_node_input_color_init(bNodeTree *UNUSED(ntree), bNode *node)
+{
+  NodeInputColor *data = (NodeInputColor *)MEM_callocN(sizeof(NodeInputColor), __func__);
+  copy_v4_fl4(data->color, 0.5f, 0.5f, 0.5f, 1.0f);
+  node->storage = data;
+}
+
+}  // namespace blender::nodes
+
+void register_node_type_fn_input_color()
+{
+  static bNodeType ntype;
+
+  fn_node_type_base(&ntype, FN_NODE_INPUT_COLOR, "Color", NODE_CLASS_INPUT, 0);
+  ntype.declare = blender::nodes::fn_node_input_color_declare;
+  node_type_init(&ntype, blender::nodes::fn_node_input_color_init);
+  node_type_storage(
+      &ntype, "NodeInputColor", node_free_standard_storage, node_copy_standard_storage);
+  ntype.build_multi_function = blender::nodes::fn_node_color_input_build_multi_function;
+  ntype.draw_buttons = blender::nodes::fn_node_input_color_layout;
+  nodeRegisterType(&ntype);
+}