Subdiv: Initial implementation of CCG

Attempts to substitude CCGDM with an OpenSubdiv based structure
which has less abstraction levels. The missing part in this
substitude is a face pointers which old CCGDM/multires code was
using to stitch faces (averaging boundaries).

Another curial bit missing: "reshaping" of multires CD_MDISPS
to the state of new PBVH grids.

The new code is only available when OpenSubdiv modifier is
enabled (WITH_OPENSUBDIV_MODIFIER=ON) and with debug value of
128. This is so this WIP code is not interfering with current
production machines in the studio.

Reviewers: brecht

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D3685

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/subdiv_stats.c b/source/blender/blenkernel/intern/subdiv_stats.c
index f2219961ab7..a0cd1d909b7 100644
--- a/source/blender/blenkernel/intern/subdiv_stats.c
+++ b/source/blender/blenkernel/intern/subdiv_stats.c
@@ -40,6 +40,8 @@ void BKE_subdiv_stats_init(SubdivStats *stats)
 	stats->subdiv_to_mesh_geometry_time = 0.0;
 	stats->evaluator_creation_time = 0.0;
 	stats->evaluator_refine_time = 0.0;
+	stats->subdiv_to_ccg_time = 0.0;
+	stats->subdiv_to_ccg_elements_time = 0.0;
 }
 
 void BKE_subdiv_stats_begin(SubdivStats *stats, eSubdivStatsValue value)
@@ -79,6 +81,12 @@ void BKE_subdiv_stats_print(const SubdivStats *stats)
 	STATS_PRINT_TIME(stats,
 	                 evaluator_refine_time,
 	                 "Evaluator refine time");
+	STATS_PRINT_TIME(stats,
+	                 subdiv_to_ccg_time,
+	                 "Subdivision to CCG time");
+	STATS_PRINT_TIME(stats,
+	                 subdiv_to_ccg_elements_time,
+	                 "    Elements time");
 
 #undef STATS_PRINT_TIME
 }