fe731686fb
Basically the title says it all, volume stack initialization now is aware that camera might be inside of the volume. This gives quite noticeable render time regressions in cases camera is in the volume (didn't measure them yet) because this requires quite a few of ray-casting per camera ray in order to check which objects we're inside. Not quite sure if this might be optimized. But the good thing is that we can do quite a good job on detecting whether camera is outside of any of the volumes and in this case there should be no time penalty at all (apart from some extra checks during the sync state). For now we're only doing rather simple AABB checks between the viewplane and volume objects. This could give some false-positives, but this should be good starting point. Need to mention panoramic cameras here, for them it's only check for whether there are volumes in the scene, which would lead to speed regressions even if the camera is outside of the volumes. Would need to figure out proper check for such cameras. There are still quite a few of TODOs in the code, but the patch is good enough to start playing around with it checking whether there are some obvious mistakes somewhere. Currently the feature is only available in the Experimental feature sey, need to solve some of the TODOs and look into making things faster before considering the feature is ready for the official feature set. This would still likely happen in current release cycle. Reviewers: brecht, juicyfruit, dingto Differential Revision: https://developer.blender.org/D794
302 lines
7.8 KiB
C++
302 lines
7.8 KiB
C++
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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#include <stdlib.h>
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#include "background.h"
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#include "bake.h"
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#include "camera.h"
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#include "curves.h"
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#include "device.h"
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#include "film.h"
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#include "integrator.h"
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#include "light.h"
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#include "mesh.h"
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#include "object.h"
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#include "osl.h"
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#include "particles.h"
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#include "scene.h"
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#include "shader.h"
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#include "svm.h"
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#include "tables.h"
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#include "util_foreach.h"
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#include "util_progress.h"
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CCL_NAMESPACE_BEGIN
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Scene::Scene(const SceneParams& params_, const DeviceInfo& device_info_)
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: params(params_)
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{
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device = NULL;
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memset(&dscene.data, 0, sizeof(dscene.data));
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camera = new Camera();
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lookup_tables = new LookupTables();
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film = new Film();
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background = new Background();
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light_manager = new LightManager();
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mesh_manager = new MeshManager();
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object_manager = new ObjectManager();
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integrator = new Integrator();
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image_manager = new ImageManager();
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particle_system_manager = new ParticleSystemManager();
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curve_system_manager = new CurveSystemManager();
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bake_manager = new BakeManager();
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/* OSL only works on the CPU */
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if(device_info_.type == DEVICE_CPU)
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shader_manager = ShaderManager::create(this, params.shadingsystem);
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else
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shader_manager = ShaderManager::create(this, SHADINGSYSTEM_SVM);
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/* Extended image limits for CPU and GPUs */
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image_manager->set_extended_image_limits(device_info_);
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}
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Scene::~Scene()
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{
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free_memory(true);
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}
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void Scene::free_memory(bool final)
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{
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foreach(Shader *s, shaders)
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delete s;
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foreach(Mesh *m, meshes)
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delete m;
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foreach(Object *o, objects)
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delete o;
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foreach(Light *l, lights)
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delete l;
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foreach(ParticleSystem *p, particle_systems)
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delete p;
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shaders.clear();
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meshes.clear();
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objects.clear();
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lights.clear();
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particle_systems.clear();
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if(device) {
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camera->device_free(device, &dscene);
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film->device_free(device, &dscene, this);
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background->device_free(device, &dscene);
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integrator->device_free(device, &dscene);
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object_manager->device_free(device, &dscene);
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mesh_manager->device_free(device, &dscene);
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shader_manager->device_free(device, &dscene, this);
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light_manager->device_free(device, &dscene);
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particle_system_manager->device_free(device, &dscene);
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curve_system_manager->device_free(device, &dscene);
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bake_manager->device_free(device, &dscene);
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if(!params.persistent_data || final)
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image_manager->device_free(device, &dscene);
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else
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image_manager->device_free_builtin(device, &dscene);
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lookup_tables->device_free(device, &dscene);
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}
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if(final) {
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delete lookup_tables;
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delete camera;
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delete film;
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delete background;
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delete integrator;
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delete object_manager;
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delete mesh_manager;
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delete shader_manager;
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delete light_manager;
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delete particle_system_manager;
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delete curve_system_manager;
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delete image_manager;
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delete bake_manager;
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}
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}
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void Scene::device_update(Device *device_, Progress& progress)
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{
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if(!device)
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device = device_;
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/* The order of updates is important, because there's dependencies between
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* the different managers, using data computed by previous managers.
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*
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* - Image manager uploads images used by shaders.
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* - Camera may be used for adaptive subdivision.
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* - Displacement shader must have all shader data available.
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* - Light manager needs lookup tables and final mesh data to compute emission CDF.
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* - Film needs light manager to run for use_light_visibility
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* - Lookup tables are done a second time to handle film tables
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*/
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image_manager->set_pack_images(device->info.pack_images);
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progress.set_status("Updating Shaders");
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shader_manager->device_update(device, &dscene, this, progress);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Images");
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image_manager->device_update(device, &dscene, progress);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Background");
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background->device_update(device, &dscene, this);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Objects");
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object_manager->device_update(device, &dscene, this, progress);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Meshes");
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mesh_manager->device_update(device, &dscene, this, progress);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Hair Systems");
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curve_system_manager->device_update(device, &dscene, this, progress);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Lookup Tables");
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lookup_tables->device_update(device, &dscene);
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if(progress.get_cancel()) return;
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/* TODO(sergey): Make sure camera is not needed above. */
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progress.set_status("Updating Camera");
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camera->device_update(device, &dscene, this);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Lights");
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light_manager->device_update(device, &dscene, this, progress);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Particle Systems");
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particle_system_manager->device_update(device, &dscene, this, progress);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Film");
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film->device_update(device, &dscene, this);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Integrator");
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integrator->device_update(device, &dscene, this);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Lookup Tables");
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lookup_tables->device_update(device, &dscene);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Baking");
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bake_manager->device_update(device, &dscene, this, progress);
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if(progress.get_cancel()) return;
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progress.set_status("Updating Device", "Writing constant memory");
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device->const_copy_to("__data", &dscene.data, sizeof(dscene.data));
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}
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Scene::MotionType Scene::need_motion(bool advanced_shading)
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{
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if(integrator->motion_blur)
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return (advanced_shading)? MOTION_BLUR: MOTION_NONE;
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else if(Pass::contains(film->passes, PASS_MOTION))
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return MOTION_PASS;
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else
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return MOTION_NONE;
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}
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bool Scene::need_global_attribute(AttributeStandard std)
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{
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if(std == ATTR_STD_UV)
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return Pass::contains(film->passes, PASS_UV);
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else if(std == ATTR_STD_MOTION_VERTEX_POSITION)
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return need_motion() != MOTION_NONE;
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else if(std == ATTR_STD_MOTION_VERTEX_NORMAL)
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return need_motion() == MOTION_BLUR;
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return false;
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}
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void Scene::need_global_attributes(AttributeRequestSet& attributes)
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{
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for(int std = ATTR_STD_NONE; std < ATTR_STD_NUM; std++)
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if(need_global_attribute((AttributeStandard)std))
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attributes.add((AttributeStandard)std);
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}
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bool Scene::need_update()
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{
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return (need_reset() || film->need_update);
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}
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bool Scene::need_reset()
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{
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return (background->need_update
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|| image_manager->need_update
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|| camera->need_update
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|| object_manager->need_update
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|| mesh_manager->need_update
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|| light_manager->need_update
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|| lookup_tables->need_update
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|| integrator->need_update
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|| shader_manager->need_update
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|| particle_system_manager->need_update
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|| curve_system_manager->need_update
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|| bake_manager->need_update);
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}
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void Scene::reset()
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{
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shader_manager->reset(this);
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shader_manager->add_default(this);
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/* ensure all objects are updated */
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camera->tag_update();
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film->tag_update(this);
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background->tag_update(this);
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integrator->tag_update(this);
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object_manager->tag_update(this);
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mesh_manager->tag_update(this);
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light_manager->tag_update(this);
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particle_system_manager->tag_update(this);
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curve_system_manager->tag_update(this);
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}
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void Scene::device_free()
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{
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free_memory(false);
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}
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CCL_NAMESPACE_END
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