Cycles: support for motion vector and UV passes.

Most of the changes are related to adding support for motion data throughout
the code. There's some code for actual camera/object motion blur raytracing
but it's unfinished (it badly slows down the raytracing kernel even when the
option is turned off), so that code it disabled still.

Motion vector export from Blender tries to avoid computing derived meshes
when the mesh does not have a deforming modifier, and it also won't store
motion vectors for every vertex if only the object or camera is moving.

1 files changed, 7 insertions, 4 deletions

diff --git a/intern/cycles/blender/blender_session.cpp b/intern/cycles/blender/blender_session.cpp
index 5ece7aa26e2..f79b9995165 100644
--- a/intern/cycles/blender/blender_session.cpp
+++ b/intern/cycles/blender/blender_session.cpp
@@ -91,7 +91,7 @@ void BlenderSession::create_session()
 
 	/* create sync */
 	sync = new BlenderSync(b_data, b_scene, scene, !background);
-	sync->sync_data(b_v3d);
+	sync->sync_data(b_v3d, b_engine.camera_override());
 
 	if(b_rv3d)
 		sync->sync_view(b_v3d, b_rv3d, width, height);
@@ -130,6 +130,8 @@ static PassType get_pass_type(BL::RenderPass b_pass)
 			return PASS_OBJECT_ID;
 		case BL::RenderPass::type_UV:
 			return PASS_UV;
+		case BL::RenderPass::type_VECTOR:
+			return PASS_MOTION;
 		case BL::RenderPass::type_MATERIAL_INDEX:
 			return PASS_MATERIAL_ID;
 
@@ -168,7 +170,6 @@ static PassType get_pass_type(BL::RenderPass b_pass)
 		case BL::RenderPass::type_REFRACTION:
 		case BL::RenderPass::type_SPECULAR:
 		case BL::RenderPass::type_REFLECTION:
-		case BL::RenderPass::type_VECTOR:
 		case BL::RenderPass::type_MIST:
 			return PASS_NONE;
 	}
@@ -209,6 +210,8 @@ void BlenderSession::render()
 				BL::RenderPass b_pass(*b_pass_iter);
 				PassType pass_type = get_pass_type(b_pass);
 
+				if(pass_type == PASS_MOTION && scene->integrator->motion_blur)
+					continue;
 				if(pass_type != PASS_NONE)
 					Pass::add(pass_type, passes);
 			}
@@ -219,7 +222,7 @@ void BlenderSession::render()
 		scene->film->tag_update(scene);
 
 		/* update scene */
-		sync->sync_data(b_v3d, b_iter->name().c_str());
+		sync->sync_data(b_v3d, b_engine.camera_override(), b_iter->name().c_str());
 
 		/* update session */
 		int samples = sync->get_layer_samples();
@@ -310,7 +313,7 @@ void BlenderSession::synchronize()
 	}
 
 	/* data and camera synchronize */
-	sync->sync_data(b_v3d);
+	sync->sync_data(b_v3d, b_engine.camera_override());
 
 	if(b_rv3d)
 		sync->sync_view(b_v3d, b_rv3d, width, height);