diff options
Diffstat (limited to 'intern/cycles/render/coverage.cpp')
| -rw-r--r-- | intern/cycles/render/coverage.cpp | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/intern/cycles/render/coverage.cpp b/intern/cycles/render/coverage.cpp new file mode 100644 index 00000000000..72ef4cda3ff --- /dev/null +++ b/intern/cycles/render/coverage.cpp @@ -0,0 +1,143 @@ +/* + * Copyright 2018 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 "render/coverage.h" +#include "kernel/kernel_compat_cpu.h" +#include "kernel/split/kernel_split_data.h" +#include "kernel/kernel_globals.h" +#include "kernel/kernel_id_passes.h" +#include "kernel/kernel_types.h" +#include "util/util_map.h" +#include "util/util_vector.h" + +CCL_NAMESPACE_BEGIN + +static bool crypomatte_comp(const pair<float, float>& i, const pair<float, float> j) { return i.first > j.first; } + +void Coverage::finalize() +{ + int pass_offset = 0; + if(kernel_data.film.cryptomatte_passes & CRYPT_OBJECT) { + finalize_buffer(coverage_object, pass_offset); + pass_offset += kernel_data.film.cryptomatte_depth * 4; + } + if(kernel_data.film.cryptomatte_passes & CRYPT_MATERIAL) { + finalize_buffer(coverage_material, pass_offset); + pass_offset += kernel_data.film.cryptomatte_depth * 4; + } + if(kernel_data.film.cryptomatte_passes & CRYPT_ASSET) { + finalize_buffer(coverage_asset, pass_offset); + } +} + +void Coverage::init_path_trace() +{ + kg->coverage_object = kg->coverage_material = kg->coverage_asset = NULL; + + if(kernel_data.film.cryptomatte_passes & CRYPT_ACCURATE) { + if(kernel_data.film.cryptomatte_passes & CRYPT_OBJECT) { + coverage_object.clear(); + coverage_object.resize(tile.w * tile.h); + } + if(kernel_data.film.cryptomatte_passes & CRYPT_MATERIAL) { + coverage_material.clear(); + coverage_material.resize(tile.w * tile.h); + } + if(kernel_data.film.cryptomatte_passes & CRYPT_ASSET) { + coverage_asset.clear(); + coverage_asset.resize(tile.w * tile.h); + } + } +} + +void Coverage::init_pixel(int x, int y) +{ + if(kernel_data.film.cryptomatte_passes & CRYPT_ACCURATE) { + const int pixel_index = tile.w * (y - tile.y) + x - tile.x; + if(kernel_data.film.cryptomatte_passes & CRYPT_OBJECT) { + kg->coverage_object = &coverage_object[pixel_index]; + } + if(kernel_data.film.cryptomatte_passes & CRYPT_MATERIAL) { + kg->coverage_material = &coverage_material[pixel_index]; + } + if(kernel_data.film.cryptomatte_passes & CRYPT_ASSET) { + kg->coverage_asset = &coverage_asset[pixel_index]; + } + } +} + +void Coverage::finalize_buffer(vector<CoverageMap> & coverage, const int pass_offset) +{ + if(kernel_data.film.cryptomatte_passes & CRYPT_ACCURATE) { + flatten_buffer(coverage, pass_offset); + } + else { + sort_buffer(pass_offset); + } +} + +void Coverage::flatten_buffer(vector<CoverageMap> &coverage, const int pass_offset) +{ + /* Sort the coverage map and write it to the output */ + int pixel_index = 0; + int pass_stride = tile.buffers->params.get_passes_size(); + for(int y = 0; y < tile.h; ++y) { + for(int x = 0; x < tile.w; ++x) { + const CoverageMap& pixel = coverage[pixel_index]; + if(!pixel.empty()) { + /* buffer offset */ + int index = x + y * tile.stride; + float *buffer = (float*)tile.buffer + index*pass_stride; + + /* sort the cryptomatte pixel */ + vector<pair<float, float> > sorted_pixel; + for(CoverageMap::const_iterator it = pixel.begin(); it != pixel.end(); ++it) { + sorted_pixel.push_back(std::make_pair(it->second, it->first)); + } + sort(sorted_pixel.begin(), sorted_pixel.end(), crypomatte_comp); + int num_slots = 2 * (kernel_data.film.cryptomatte_depth); + if(sorted_pixel.size() > num_slots) { + float leftover = 0.0f; + for(vector<pair<float, float> >::iterator it = sorted_pixel.begin()+num_slots; it != sorted_pixel.end(); ++it) { + leftover += it->first; + } + sorted_pixel[num_slots-1].first += leftover; + } + int limit = min(num_slots, sorted_pixel.size()); + for(int i = 0; i < limit; ++i) { + kernel_write_id_slots(buffer + kernel_data.film.pass_cryptomatte + pass_offset, 2 * (kernel_data.film.cryptomatte_depth), sorted_pixel[i].second, sorted_pixel[i].first); + } + } + ++pixel_index; + } + } +} + +void Coverage::sort_buffer(const int pass_offset) +{ + /* Sort the coverage map and write it to the output */ + int pass_stride = tile.buffers->params.get_passes_size(); + for(int y = 0; y < tile.h; ++y) { + for(int x = 0; x < tile.w; ++x) { + /* buffer offset */ + int index = x + y*tile.stride; + float *buffer = (float*)tile.buffer + index*pass_stride; + kernel_sort_id_slots(buffer + kernel_data.film.pass_cryptomatte + pass_offset, 2 * (kernel_data.film.cryptomatte_depth)); + } + } +} + +CCL_NAMESPACE_END |