diff options
author | Lukas Stockner <lukas.stockner@freenet.de> | 2019-05-31 23:38:50 +0300 |
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committer | Lukas Stockner <lukas.stockner@freenet.de> | 2019-06-01 01:45:03 +0300 |
commit | cc600de6695a241dd9b0de275656b5a7459552dc (patch) | |
tree | 6111f7469b75ae24a4a93a8109af3c3d233db722 /intern/cycles/render/denoising.cpp | |
parent | d5b813301a81a7ec13996dfcb3a9bc88f56e4018 (diff) |
Cycles Denoising: Get rid of halos around bright edges
Previously, bright edges (e.g. caused by rim lighting) would sometimes get
halos around them after denoising.
This change introduces a log(1+x) highlight compression step that is performed
before denoising and reversed afterwards. That way, the denoising algorithm
itself operates in the compressed space and therefore bright edges cause less
numerical issues.
Diffstat (limited to 'intern/cycles/render/denoising.cpp')
-rw-r--r-- | intern/cycles/render/denoising.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/intern/cycles/render/denoising.cpp b/intern/cycles/render/denoising.cpp index 82bbfa5f823..39bd8ce00c2 100644 --- a/intern/cycles/render/denoising.cpp +++ b/intern/cycles/render/denoising.cpp @@ -491,6 +491,19 @@ bool DenoiseTask::load_input_pixels(int layer) } } + /* Highlight compression */ + data = buffer_data + 8; + for (int y = 0; y < h; y++) { + for (int x = 0; x < w; x++) { + int idx = INPUT_NUM_CHANNELS * (y * w + x); + float3 color = make_float3(data[idx], data[idx + 1], data[idx + 2]); + color = color_highlight_compress(color, NULL); + data[idx] = color.x; + data[idx + 1] = color.y; + data[idx + 2] = color.z; + } + } + buffer_data += frame_stride; } |