366262bef5
Cycles:Distance Scrambling for Cycles Sobol Sampler This option implements micro jittering an is based on the INRIA research paper [[ https://hal.inria.fr/hal-01325702/document | on micro jittering ]] and work by Lukas Stockner for implementing the scrambling distance. It works by controlling the correlation between pixels by either using a user supplied value or an adaptive algorithm to limit the maximum deviation of the sample values between pixels. This is a follow up of https://developer.blender.org/D12316 The PMJ version can be found here: https://developer.blender.org/D12511 Reviewed By: leesonw Differential Revision: https://developer.blender.org/D12318
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/*
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* Copyright 2011-2021 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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#pragma once
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#include <ostream>
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#include "util/types.h"
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CCL_NAMESPACE_BEGIN
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struct TileSize {
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TileSize() = default;
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inline TileSize(int width, int height, int num_samples)
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: width(width), height(height), num_samples(num_samples)
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{
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}
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inline bool operator==(const TileSize &other) const
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{
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return width == other.width && height == other.height && num_samples == other.num_samples;
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}
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inline bool operator!=(const TileSize &other) const
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{
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return !(*this == other);
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}
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int width = 0, height = 0;
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int num_samples = 0;
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};
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std::ostream &operator<<(std::ostream &os, const TileSize &tile_size);
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/* Calculate tile size which is best suitable for rendering image of a given size with given number
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* of active path states.
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* Will attempt to provide best guess to keep path tracing threads of a device as localized as
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* possible, and have as many threads active for every tile as possible. */
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TileSize tile_calculate_best_size(const int2 &image_size,
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const int num_samples,
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const int max_num_path_states,
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const float scrambling_distance);
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CCL_NAMESPACE_END
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