diff options
Diffstat (limited to 'intern/cycles/blender/blender_particles.cpp')
| -rw-r--r-- | intern/cycles/blender/blender_particles.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/intern/cycles/blender/blender_particles.cpp b/intern/cycles/blender/blender_particles.cpp new file mode 100644 index 00000000000..dd2900a8d5b --- /dev/null +++ b/intern/cycles/blender/blender_particles.cpp @@ -0,0 +1,92 @@ +/* + * 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 "mesh.h" +#include "object.h" +#include "particles.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::DupliObject& b_dup, + Object *object) +{ + /* test if this dupli was generated from a particle sytem */ + BL::ParticleSystem b_psys = b_dup.particle_system(); + if(!b_psys) + return false; + + object->hide_on_missing_motion = true; + + /* test if we need particle data */ + if(!object->mesh->need_attribute(scene, ATTR_STD_PARTICLE)) + return false; + + /* don't handle child particles yet */ + BL::Array<int, OBJECT_PERSISTENT_ID_SIZE> persistent_id = b_dup.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.sync(&psys, b_ob, b_dup.object(), key); + + /* no update needed? */ + if(!need_update && !object->mesh->need_update && !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() - 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); + + if(object->particle_index != psys->particles.size() - 1) + scene->object_manager->tag_update(scene); + object->particle_system = psys; + object->particle_index = psys->particles.size() - 1; + + /* return that this object has particle data */ + return true; +} + +CCL_NAMESPACE_END |