DRW: Pointcloud: Refactor drawing to remove instancing

This change the attribute binding scheme to something similar to the
curves objects. Attributes are now buffer textures sampled per points.

The actual geometry is now rendered using an index buffer that avoid too
many vertex shader invocation.

Drawcall is wrapped in a DRW function to reduce complexity of future
changes.

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/draw/engines/workbench/workbench_private.h b/source/blender/draw/engines/workbench/workbench_private.h
index 492bce1e571..4aedaf443b9 100644
--- a/source/blender/draw/engines/workbench/workbench_private.h
+++ b/source/blender/draw/engines/workbench/workbench_private.h
@@ -511,6 +511,11 @@ DRWShadingGroup *workbench_image_setup_ex(WORKBENCH_PrivateData *wpd,
 #define workbench_image_hair_setup(wpd, ob, mat_nr, ima, iuser, interp) \
   workbench_image_setup_ex(wpd, ob, mat_nr, ima, iuser, interp, WORKBENCH_DATATYPE_HAIR)
 
+#define workbench_material_ptcloud_setup(wpd, ob, mat_nr, color_type) \
+  workbench_material_setup_ex(wpd, ob, mat_nr, color_type, WORKBENCH_DATATYPE_POINTCLOUD, 0)
+#define workbench_image_ptcloud_setup(wpd, ob, mat_nr, ima, iuser, interp) \
+  workbench_image_setup_ex(wpd, ob, mat_nr, ima, iuser, interp, WORKBENCH_DATATYPE_POINTCLOUD)
+
 /* workbench_data.c */
 
 void workbench_private_data_alloc(WORKBENCH_StorageList *stl);