diff options
| author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-01-10 01:09:20 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2013-01-10 01:09:20 +0400 |
| commit | ad10cbf04aed17c69ccd4e15921669d18ed987e1 (patch) | |
| tree | 9a73793ecd3932a5e9a603bc13027078752f6700 /intern/cycles/kernel/kernel_camera.h | |
| parent | 97d1abfe95281de3e42fb9a8d13226c621fdede5 (diff) | |
Cycles: multiple importance sampling for lamps, which helps reduce noise for
big lamps and sharp glossy reflections. This was already supported for mesh
lights and the background, so lamps should do it too.
This is not for free and it's a bit slower than I hoped even though there is
no extra BVH ray intersection. I'll try to optimize it more later.
* Area lights look a bit different now, they had the wrong shape before.
* Also fixes a sampling issue in the non-progressive integrator.
* Only enabled for the CPU, will test on the GPU later.
* An option to disable this will be added for situations where it does not help.
Same time comparison before/after:
http://www.pasteall.org/pic/show.php?id=43313
http://www.pasteall.org/pic/show.php?id=43314
Diffstat (limited to 'intern/cycles/kernel/kernel_camera.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_camera.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/intern/cycles/kernel/kernel_camera.h b/intern/cycles/kernel/kernel_camera.h index 97d37a8b3f4..cd896ffe133 100644 --- a/intern/cycles/kernel/kernel_camera.h +++ b/intern/cycles/kernel/kernel_camera.h @@ -199,7 +199,6 @@ __device void camera_sample_panorama(KernelGlobals *kg, float raster_x, float ra Pcamera = transform_perspective(&rastertocamera, make_float3(raster_x, raster_y + 1.0f, 0.0f)); ray->dD.dy = normalize(transform_direction(&cameratoworld, panorama_to_direction(kg, Pcamera.x, Pcamera.y))) - ray->D; - #endif } |