PointCloud: Initial rendering support for Workbench

Also includes outline overlays. Removes the temp overlay drawing

We make the geometry follow camera like billboards this uses less
geometry. Currently we use half octahedron for now. Goal would be
to use icospheres.

This patch also optimize the case when pointcloud has uniform radius.
However we should premultiply the radius prop by the default radius
beforehand to avoid a multiplication on CPU.

Using geometry instead of pseudo raytraced spheres is more scalable as
we can render as low as 1 or 2 triangle to a full half sphere and can
integrate easily in the render pipeline using a low amount of code.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D8301

1 files changed, 2 insertions, 5 deletions

diff --git a/source/blender/draw/engines/overlay/overlay_private.h b/source/blender/draw/engines/overlay/overlay_private.h
index 59fa58c0c03..027478c3e3c 100644
--- a/source/blender/draw/engines/overlay/overlay_private.h
+++ b/source/blender/draw/engines/overlay/overlay_private.h
@@ -243,6 +243,7 @@ typedef struct OVERLAY_PrivateData {
   DRWShadingGroup *motion_path_lines_grp;
   DRWShadingGroup *motion_path_points_grp;
   DRWShadingGroup *outlines_grp;
+  DRWShadingGroup *outlines_ptcloud_grp;
   DRWShadingGroup *outlines_gpencil_grp;
   DRWShadingGroup *paint_depth_grp;
   DRWShadingGroup *paint_surf_grp;
@@ -550,10 +551,6 @@ void OVERLAY_particle_cache_init(OVERLAY_Data *vedata);
 void OVERLAY_particle_cache_populate(OVERLAY_Data *vedata, Object *ob);
 void OVERLAY_particle_draw(OVERLAY_Data *vedata);
 
-void OVERLAY_pointcloud_cache_init(OVERLAY_Data *vedata);
-void OVERLAY_pointcloud_cache_populate(OVERLAY_Data *vedata, Object *ob);
-void OVERLAY_pointcloud_draw(OVERLAY_Data *vedata);
-
 void OVERLAY_sculpt_cache_init(OVERLAY_Data *vedata);
 void OVERLAY_sculpt_cache_populate(OVERLAY_Data *vedata, Object *ob);
 void OVERLAY_sculpt_draw(OVERLAY_Data *vedata);
@@ -610,6 +607,7 @@ GPUShader *OVERLAY_shader_motion_path_vert(void);
 GPUShader *OVERLAY_shader_uniform_color(void);
 GPUShader *OVERLAY_shader_outline_prepass(bool use_wire);
 GPUShader *OVERLAY_shader_outline_prepass_gpencil(void);
+GPUShader *OVERLAY_shader_outline_prepass_pointcloud(void);
 GPUShader *OVERLAY_shader_extra_grid(void);
 GPUShader *OVERLAY_shader_outline_detect(void);
 GPUShader *OVERLAY_shader_paint_face(void);
@@ -620,7 +618,6 @@ GPUShader *OVERLAY_shader_paint_weight(void);
 GPUShader *OVERLAY_shader_paint_wire(void);
 GPUShader *OVERLAY_shader_particle_dot(void);
 GPUShader *OVERLAY_shader_particle_shape(void);
-GPUShader *OVERLAY_shader_pointcloud_dot(void);
 GPUShader *OVERLAY_shader_sculpt_mask(void);
 GPUShader *OVERLAY_shader_volume_velocity(bool use_needle);
 GPUShader *OVERLAY_shader_wireframe(bool custom_bias);