diff options
| author | Lukas Stockner <lukas.stockner@freenet.de> | 2016-11-06 21:12:45 +0300 |
|---|---|---|
| committer | Lukas Stockner <lukas.stockner@freenet.de> | 2016-11-06 22:34:50 +0300 |
| commit | f89fbf580eae6202cef9da08756fd415ca34a8f3 (patch) | |
| tree | 19dcb783a61b32f016829e466b86d20a9e441b19 /intern/cycles/render/light.cpp | |
| parent | 818af9c3315cb883436a3d75d634f449133cd3d9 (diff) | |
Cycles: Fix T49952: Bad MIS sampling of backgrounds with single bright pixels
With this fix, using a MIS map resolution equal to the image size for closest imterpolation or twice the size for linear interpolation gets rid of all fireflies.
Previously, a much higher resolution was needed to get acceptable noise levels.
Diffstat (limited to 'intern/cycles/render/light.cpp')
| -rw-r--r-- | intern/cycles/render/light.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/intern/cycles/render/light.cpp b/intern/cycles/render/light.cpp index 777f3229ce6..c43d646f515 100644 --- a/intern/cycles/render/light.cpp +++ b/intern/cycles/render/light.cpp @@ -43,8 +43,8 @@ static void shade_background_pixels(Device *device, DeviceScene *dscene, int res for(int y = 0; y < height; y++) { for(int x = 0; x < width; x++) { - float u = x/(float)width; - float v = y/(float)height; + float u = (x + 0.5f)/width; + float v = (y + 0.5f)/height; uint4 in = make_uint4(__float_as_int(u), __float_as_int(v), 0, 0); d_input_data[x + y*width] = in; |