Objects: Eevee and workbench rendering of new Volume, Hair, PointCloud

Only the volume drawing part is really finished and exposed to the user. Hair
plugs into the existing hair rendering code and is fairly straightforward. The
pointcloud drawing is a hack using overlays rather than Eevee and workbench.

The most tricky part for volume rendering is the case where each volume grid
has a different transform, which requires an additional matrix in the shader
and non-trivial logic in Eevee volume drawing. In the common case were all the
transforms match we don't use the additional per-grid matrix in the shader.

Ref T73201, T68981

Differential Revision: https://developer.blender.org/D6955

1 files changed, 9 insertions, 1 deletions

diff --git a/source/blender/draw/intern/draw_common.c b/source/blender/draw/intern/draw_common.c
index b1ad1455d8c..87cd1cd8546 100644
--- a/source/blender/draw/intern/draw_common.c
+++ b/source/blender/draw/intern/draw_common.c
@@ -437,7 +437,15 @@ bool DRW_object_is_flat(Object *ob, int *r_axis)
 {
   float dim[3];
 
-  if (!ELEM(ob->type, OB_MESH, OB_CURVE, OB_SURF, OB_FONT, OB_MBALL)) {
+  if (!ELEM(ob->type,
+            OB_MESH,
+            OB_CURVE,
+            OB_SURF,
+            OB_FONT,
+            OB_MBALL,
+            OB_HAIR,
+            OB_POINTCLOUD,
+            OB_VOLUME)) {
     /* Non-meshes object cannot be considered as flat. */
     return false;
   }