diff options
Diffstat (limited to 'intern/cycles/kernel/split/kernel_adaptive_adjust_samples.h')
| -rw-r--r-- | intern/cycles/kernel/split/kernel_adaptive_adjust_samples.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/intern/cycles/kernel/split/kernel_adaptive_adjust_samples.h b/intern/cycles/kernel/split/kernel_adaptive_adjust_samples.h new file mode 100644 index 00000000000..60ebf415970 --- /dev/null +++ b/intern/cycles/kernel/split/kernel_adaptive_adjust_samples.h @@ -0,0 +1,44 @@ +/* + * Copyright 2019 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. + */ + +CCL_NAMESPACE_BEGIN + +ccl_device void kernel_adaptive_adjust_samples(KernelGlobals *kg) +{ + int pixel_index = ccl_global_id(1) * ccl_global_size(0) + ccl_global_id(0); + if (pixel_index < kernel_split_params.tile.w * kernel_split_params.tile.h) { + int x = kernel_split_params.tile.x + pixel_index % kernel_split_params.tile.w; + int y = kernel_split_params.tile.y + pixel_index / kernel_split_params.tile.w; + int buffer_offset = (kernel_split_params.tile.offset + x + + y * kernel_split_params.tile.stride) * + kernel_data.film.pass_stride; + ccl_global float *buffer = kernel_split_params.tile.buffer + buffer_offset; + int sample = kernel_split_params.tile.start_sample + kernel_split_params.tile.num_samples; + if (buffer[kernel_data.film.pass_sample_count] < 0.0f) { + buffer[kernel_data.film.pass_sample_count] = -buffer[kernel_data.film.pass_sample_count]; + float sample_multiplier = sample / max((float)kernel_split_params.tile.start_sample + 1.0f, + buffer[kernel_data.film.pass_sample_count]); + if (sample_multiplier != 1.0f) { + kernel_adaptive_post_adjust(kg, buffer, sample_multiplier); + } + } + else { + kernel_adaptive_post_adjust(kg, buffer, sample / (sample - 1.0f)); + } + } +} + +CCL_NAMESPACE_END |