diff options
Diffstat (limited to 'intern/cycles/render/integrator.cpp')
| -rw-r--r-- | intern/cycles/render/integrator.cpp | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/intern/cycles/render/integrator.cpp b/intern/cycles/render/integrator.cpp new file mode 100644 index 00000000000..9d129d8e8db --- /dev/null +++ b/intern/cycles/render/integrator.cpp @@ -0,0 +1,128 @@ +/* + * Copyright 2011, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "device.h" +#include "integrator.h" +#include "scene.h" +#include "sobol.h" + +#include "util_hash.h" + +CCL_NAMESPACE_BEGIN + +Integrator::Integrator() +{ + min_bounce = 2; + max_bounce = 7; + + max_diffuse_bounce = max_bounce; + max_glossy_bounce = max_bounce; + max_transmission_bounce = max_bounce; + probalistic_termination = true; + + transparent_min_bounce = min_bounce; + transparent_max_bounce = max_bounce; + transparent_probalistic = true; + transparent_shadows = false; + + no_caustics = false; + blur_caustics = 0.0f; + + seed = 0; + + need_update = true; +} + +Integrator::~Integrator() +{ +} + +void Integrator::device_update(Device *device, DeviceScene *dscene) +{ + if(!need_update) + return; + + device_free(device, dscene); + + KernelIntegrator *kintegrator = &dscene->data.integrator; + + /* integrator parameters */ + kintegrator->max_bounce = max_bounce + 1; + if(probalistic_termination) + kintegrator->min_bounce = min_bounce + 1; + else + kintegrator->min_bounce = kintegrator->max_bounce; + + kintegrator->max_diffuse_bounce = max_diffuse_bounce + 1; + kintegrator->max_glossy_bounce = max_glossy_bounce + 1; + kintegrator->max_transmission_bounce = max_transmission_bounce + 1; + + kintegrator->transparent_max_bounce = transparent_max_bounce + 1; + if(transparent_probalistic) + kintegrator->transparent_min_bounce = transparent_min_bounce + 1; + else + kintegrator->transparent_min_bounce = kintegrator->transparent_max_bounce; + + kintegrator->transparent_shadows = transparent_shadows; + + kintegrator->no_caustics = no_caustics; + kintegrator->blur_caustics = blur_caustics; + + kintegrator->seed = hash_int(seed); + + /* sobol directions table */ + int dimensions = PRNG_BASE_NUM + (max_bounce + transparent_max_bounce + 2)*PRNG_BOUNCE_NUM; + uint *directions = dscene->sobol_directions.resize(SOBOL_BITS*dimensions); + + sobol_generate_direction_vectors((uint(*)[SOBOL_BITS])directions, dimensions); + + device->tex_alloc("__sobol_directions", dscene->sobol_directions); + + need_update = false; +} + +void Integrator::device_free(Device *device, DeviceScene *dscene) +{ + device->tex_free(dscene->sobol_directions); + dscene->sobol_directions.clear(); +} + +bool Integrator::modified(const Integrator& integrator) +{ + return !(min_bounce == integrator.min_bounce && + max_bounce == integrator.max_bounce && + max_diffuse_bounce == integrator.max_diffuse_bounce && + max_glossy_bounce == integrator.max_glossy_bounce && + max_transmission_bounce == integrator.max_transmission_bounce && + probalistic_termination == integrator.probalistic_termination && + transparent_min_bounce == integrator.transparent_min_bounce && + transparent_max_bounce == integrator.transparent_max_bounce && + transparent_probalistic == integrator.transparent_probalistic && + transparent_shadows == integrator.transparent_shadows && + no_caustics == integrator.no_caustics && + blur_caustics == integrator.blur_caustics && + seed == integrator.seed); +} + +void Integrator::tag_update(Scene *scene) +{ + need_update = true; +} + +CCL_NAMESPACE_END + |