1 files changed, 94 insertions, 0 deletions
diff --git a/intern/cycles/blender/particles.cpp b/intern/cycles/blender/particles.cpp
new file mode 100644
index 00000000000..3a2c1b0ecf9
--- /dev/null
+++ b/intern/cycles/blender/particles.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2011-2013 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "scene/particles.h"
+#include "scene/mesh.h"
+#include "scene/object.h"
+
+#include "blender/sync.h"
+#include "blender/util.h"
+
+#include "util/foreach.h"
+
+CCL_NAMESPACE_BEGIN
+
+/* Utilities */
+
+bool BlenderSync::sync_dupli_particle(BL::Object &b_ob,
+                                      BL::DepsgraphObjectInstance &b_instance,
+                                      Object *object)
+{
+  /* Test if this dupli was generated from a particle system. */
+  BL::ParticleSystem b_psys = b_instance.particle_system();
+  if (!b_psys)
+    return false;
+
+  object->set_hide_on_missing_motion(true);
+
+  /* test if we need particle data */
+  if (!object->get_geometry()->need_attribute(scene, ATTR_STD_PARTICLE))
+    return false;
+
+  /* don't handle child particles yet */
+  BL::Array<int, OBJECT_PERSISTENT_ID_SIZE> persistent_id = b_instance.persistent_id();
+
+  if (persistent_id[0] >= b_psys.particles.length())
+    return false;
+
+  /* find particle system */
+  ParticleSystemKey key(b_ob, persistent_id);
+  ParticleSystem *psys;
+
+  bool first_use = !particle_system_map.is_used(key);
+  bool need_update = particle_system_map.add_or_update(&psys, b_ob, b_instance.object(), key);
+
+  /* no update needed? */
+  if (!need_update && !object->get_geometry()->is_modified() &&
+      !scene->object_manager->need_update())
+    return true;
+
+  /* first time used in this sync loop? clear and tag update */
+  if (first_use) {
+    psys->particles.clear();
+    psys->tag_update(scene);
+  }
+
+  /* add particle */
+  BL::Particle b_pa = b_psys.particles[persistent_id[0]];
+  Particle pa;
+
+  pa.index = persistent_id[0];
+  pa.age = b_scene.frame_current_final() - b_pa.birth_time();
+  pa.lifetime = b_pa.lifetime();
+  pa.location = get_float3(b_pa.location());
+  pa.rotation = get_float4(b_pa.rotation());
+  pa.size = b_pa.size();
+  pa.velocity = get_float3(b_pa.velocity());
+  pa.angular_velocity = get_float3(b_pa.angular_velocity());
+
+  psys->particles.push_back_slow(pa);
+
+  object->set_particle_system(psys);
+  object->set_particle_index(psys->particles.size() - 1);
+
+  if (object->particle_index_is_modified())
+    scene->object_manager->tag_update(scene, ObjectManager::PARTICLE_MODIFIED);
+
+  /* return that this object has particle data */
+  return true;
+}
+
+CCL_NAMESPACE_END