diff options
author | Lukas Stockner <lukas.stockner@freenet.de> | 2017-05-07 15:40:58 +0300 |
---|---|---|
committer | Lukas Stockner <lukas.stockner@freenet.de> | 2017-05-07 15:40:58 +0300 |
commit | 43b374e8c5430488a302298b1026faa1c3a231e9 (patch) | |
tree | 42e619a9fa08d02cef515b6315ce34dd7fd062b2 /intern/cycles/kernel/closure/bsdf_microfacet_multi.h | |
parent | bca697834728fd12c84941aa2a428abfe2090b27 (diff) |
Cycles: Implement denoising option for reducing noise in the rendered image
This commit contains the first part of the new Cycles denoising option,
which filters the resulting image using information gathered during rendering
to get rid of noise while preserving visual features as well as possible.
To use the option, enable it in the render layer options. The default settings
fit a wide range of scenes, but the user can tweak individual settings to
control the tradeoff between a noise-free image, image details, and calculation
time.
Note that the denoiser may still change in the future and that some features
are not implemented yet. The most important missing feature is animation
denoising, which uses information from multiple frames at once to produce a
flicker-free and smoother result. These features will be added in the future.
Finally, thanks to all the people who supported this project:
- Google (through the GSoC) and Theory Studios for sponsoring the development
- The authors of the papers I used for implementing the denoiser (more details
on them will be included in the technical docs)
- The other Cycles devs for feedback on the code, especially Sergey for
mentoring the GSoC project and Brecht for the code review!
- And of course the users who helped with testing, reported bugs and things
that could and/or should work better!
Diffstat (limited to 'intern/cycles/kernel/closure/bsdf_microfacet_multi.h')
-rw-r--r-- | intern/cycles/kernel/closure/bsdf_microfacet_multi.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/intern/cycles/kernel/closure/bsdf_microfacet_multi.h b/intern/cycles/kernel/closure/bsdf_microfacet_multi.h index 57f1e733ee7..30644946840 100644 --- a/intern/cycles/kernel/closure/bsdf_microfacet_multi.h +++ b/intern/cycles/kernel/closure/bsdf_microfacet_multi.h @@ -42,7 +42,7 @@ ccl_device_forceinline float D_ggx_aniso(const float3 wm, const float2 alpha) /* Sample slope distribution (based on page 14 of the supplemental implementation). */ ccl_device_forceinline float2 mf_sampleP22_11(const float cosI, const float2 randU) { - if(cosI > 0.9999f || cosI < 1e-6f) { + if(cosI > 0.9999f || fabsf(cosI) < 1e-6f) { const float r = sqrtf(randU.x / max(1.0f - randU.x, 1e-7f)); const float phi = M_2PI_F * randU.y; return make_float2(r*cosf(phi), r*sinf(phi)); |