87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
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/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "device.h"
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#include "integrator.h"
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#include "scene.h"
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#include "sobol.h"
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CCL_NAMESPACE_BEGIN
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Integrator::Integrator()
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{
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minbounce = 2;
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maxbounce = 7;
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no_caustics = false;
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blur_caustics = 0.0f;
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need_update = true;
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}
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Integrator::~Integrator()
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{
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}
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void Integrator::device_update(Device *device, DeviceScene *dscene)
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{
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if(!need_update)
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return;
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device_free(device, dscene);
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KernelIntegrator *kintegrator = &dscene->data.integrator;
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/* integrator parameters */
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kintegrator->minbounce = minbounce + 1;
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kintegrator->maxbounce = maxbounce + 1;
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kintegrator->no_caustics = no_caustics;
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kintegrator->blur_caustics = blur_caustics;
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/* sobol directions table */
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int dimensions = PRNG_BASE_NUM + (maxbounce + 2)*PRNG_BOUNCE_NUM;
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uint *directions = dscene->sobol_directions.resize(SOBOL_BITS*dimensions);
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sobol_generate_direction_vectors((uint(*)[SOBOL_BITS])directions, dimensions);
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device->tex_alloc("__sobol_directions", dscene->sobol_directions);
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need_update = false;
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}
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void Integrator::device_free(Device *device, DeviceScene *dscene)
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{
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device->tex_free(dscene->sobol_directions);
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dscene->sobol_directions.clear();
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}
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bool Integrator::modified(const Integrator& integrator)
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{
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return !(minbounce == integrator.minbounce &&
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maxbounce == integrator.maxbounce &&
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no_caustics == integrator.no_caustics &&
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blur_caustics == integrator.blur_caustics);
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}
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void Integrator::tag_update(Scene *scene)
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{
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need_update = true;
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}
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CCL_NAMESPACE_END
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