Geometry Nodes: Generalized Compare Node

Replace compare floats node with a generalized compare node. The node
allows for the comparison of float, int, string, color, and vector.

The datatypes support the following operators:
Float, Int: <, >, <=, >=, ==, !=
String: ==, !=
Color: ==, !=, lighter, darker
    (using rgb_to_grayscale value as the brightness value)

Vector Supports 5 comparison modes for: ==, !=, <, >, <=, >=
Average: The average of the components of the vectors are compared.
Dot Product: The dot product of the vectors are compared.
Direction: The angle between the vectors is compared to an angle
Element-wise: The individual components of the vectors are compared.
Length: The lengths of the vectors are compared.

Differential Revision: https://developer.blender.org/D13228

1 files changed, 29 insertions, 8 deletions

diff --git a/source/blender/makesdna/DNA_node_types.h b/source/blender/makesdna/DNA_node_types.h
index 59cf4da26f6..b49635de5ef 100644
--- a/source/blender/makesdna/DNA_node_types.h
+++ b/source/blender/makesdna/DNA_node_types.h
@@ -1606,6 +1606,16 @@ typedef struct NodeGeometryViewer {
   int8_t data_type;
 } NodeGeometryViewer;
 
+typedef struct NodeFunctionCompare {
+  /* NodeCompareOperation */
+  int8_t operation;
+  /* eNodeSocketDatatype */
+  int8_t data_type;
+  /* NodeCompareMode */
+  int8_t mode;
+  char _pad[1];
+} NodeFunctionCompare;
+
 /* script node mode */
 #define NODE_SCRIPT_INTERNAL 0
 #define NODE_SCRIPT_EXTERNAL 1
@@ -1886,14 +1896,25 @@ enum {
 };
 
 /* Float compare node operations. */
-typedef enum FloatCompareOperation {
-  NODE_FLOAT_COMPARE_LESS_THAN = 0,
-  NODE_FLOAT_COMPARE_LESS_EQUAL = 1,
-  NODE_FLOAT_COMPARE_GREATER_THAN = 2,
-  NODE_FLOAT_COMPARE_GREATER_EQUAL = 3,
-  NODE_FLOAT_COMPARE_EQUAL = 4,
-  NODE_FLOAT_COMPARE_NOT_EQUAL = 5,
-} FloatCompareOperation;
+typedef enum NodeCompareMode {
+  NODE_COMPARE_MODE_ELEMENT = 0,
+  NODE_COMPARE_MODE_LENGTH = 1,
+  NODE_COMPARE_MODE_AVERAGE = 2,
+  NODE_COMPARE_MODE_DOT_PRODUCT = 3,
+  NODE_COMPARE_MODE_DIRECTION = 4
+} NodeCompareMode;
+
+typedef enum NodeCompareOperation {
+  NODE_COMPARE_LESS_THAN = 0,
+  NODE_COMPARE_LESS_EQUAL = 1,
+  NODE_COMPARE_GREATER_THAN = 2,
+  NODE_COMPARE_GREATER_EQUAL = 3,
+  NODE_COMPARE_EQUAL = 4,
+  NODE_COMPARE_NOT_EQUAL = 5,
+  NODE_COMPARE_COLOR_BRIGHTER = 6,
+  NODE_COMPARE_COLOR_DARKER = 7,
+
+} NodeCompareOperation;
 
 /* Float to Int node operations. */
 typedef enum FloatToIntRoundingMode {