Geometry Nodes: new Attribute Sample Texture node

This node allows sampling a texture for every vertex based on some
mapping attribute. Typical attribute names are the name of a uv map
(e.g. "UVMap") and "position". However, every attribute that can be
converted to a vector implicitly is supported.

It should be noted that as of right now, uv map attributes can only be
accessed after a Point Distribute node.

Ref T82584.

Differential Revision: https://developer.blender.org/D10121

1 files changed, 10 insertions, 0 deletions

diff --git a/source/blender/editors/space_node/drawnode.c b/source/blender/editors/space_node/drawnode.c
index 7b09f681dfa..130ea430ecd 100644
--- a/source/blender/editors/space_node/drawnode.c
+++ b/source/blender/editors/space_node/drawnode.c
@@ -3289,6 +3289,13 @@ static void node_geometry_buts_object_info(uiLayout *layout, bContext *UNUSED(C)
   uiItemR(layout, ptr, "transform_space", UI_ITEM_R_EXPAND, NULL, ICON_NONE);
 }
 
+static void node_geometry_buts_attribute_sample_texture(uiLayout *layout,
+                                                        bContext *C,
+                                                        PointerRNA *ptr)
+{
+  uiTemplateID(layout, C, ptr, "texture", "texture.new", NULL, NULL, 0, ICON_NONE, NULL);
+}
+
 static void node_geometry_set_butfunc(bNodeType *ntype)
 {
   switch (ntype->type) {
@@ -3343,6 +3350,9 @@ static void node_geometry_set_butfunc(bNodeType *ntype)
     case GEO_NODE_OBJECT_INFO:
       ntype->draw_buttons = node_geometry_buts_object_info;
       break;
+    case GEO_NODE_ATTRIBUTE_SAMPLE_TEXTURE:
+      ntype->draw_buttons = node_geometry_buts_attribute_sample_texture;
+      break;
   }
 }