Cycles: Initial implementation of detailed statistics

Gathers information about object geometry and textures. Very basic at
this moment, but need to start somewhere.

Things which needs to be included still:

- "Runtime" information, like BVH. While it is not directly controllable
  by artists, it's still important to know.

- Device array sizes. Again, not under artists control, but is added to
  the overall size.

- Memory peak at different synchronization stages.

At this point it simply prints info to the stdout after F12 is done,
need better control over that too.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D3566

1 files changed, 10 insertions, 0 deletions

diff --git a/intern/cycles/render/mesh.cpp b/intern/cycles/render/mesh.cpp
index df408b478b2..ade575a52d6 100644
--- a/intern/cycles/render/mesh.cpp
+++ b/intern/cycles/render/mesh.cpp
@@ -27,6 +27,7 @@
 #include "render/nodes.h"
 #include "render/object.h"
 #include "render/scene.h"
+#include "render/stats.h"
 
 #include "kernel/osl/osl_globals.h"
 
@@ -2276,6 +2277,15 @@ void MeshManager::tag_update(Scene *scene)
 	scene->object_manager->need_update = true;
 }
 
+void MeshManager::collect_statistics(const Scene *scene, RenderStats *stats)
+{
+	foreach(Mesh *mesh, scene->meshes) {
+		stats->mesh.geometry.add_entry(
+		        NamedSizeEntry(string(mesh->name.c_str()),
+		                       mesh->get_total_size_in_bytes()));
+	}
+}
+
 bool Mesh::need_attribute(Scene *scene, AttributeStandard std)
 {
 	if(std == ATTR_STD_NONE)