diff options
| author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2013-12-29 02:00:51 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2013-12-29 02:20:53 +0400 |
| commit | fe222643b4a53fae38bc5ead86551b99abbdc583 (patch) | |
| tree | 382d10ebc69d9ac0003ec6451d9e56e88408b358 /intern/cycles/kernel/closure | |
| parent | 077fe03eaf29da93df94d9f3a38c3eb0180364cd (diff) | |
Cycles Volume Render: add volume emission support.
This is done using the existing Emission node and closure (we may add a volume
emission node, not clear yet if it will be needed).
Volume emission only supports indirect light sampling which means it's not very
efficient to make small or far away bright light sources. Using direct light
sampling and MIS would be tricky and probably won't be added anytime soon. Other
renderers don't support this either as far as I know, lamps and ray visibility
tricks may be used instead.
Diffstat (limited to 'intern/cycles/kernel/closure')
| -rw-r--r-- | intern/cycles/kernel/closure/volume.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/intern/cycles/kernel/closure/volume.h b/intern/cycles/kernel/closure/volume.h index dae24fb03fd..4cf918f32b8 100644 --- a/intern/cycles/kernel/closure/volume.h +++ b/intern/cycles/kernel/closure/volume.h @@ -39,7 +39,7 @@ ccl_device int volume_henyey_greenstein_setup(ShaderClosure *sc) /* clamp anisotropy to avoid delta function */ sc->data0 = signf(sc->data0) * min(fabsf(sc->data0), 1.0f - 1e-3f); - return SD_BSDF|SD_BSDF_HAS_EVAL; + return SD_BSDF|SD_BSDF_HAS_EVAL|SD_VOLUME; } ccl_device float3 volume_henyey_greenstein_eval_phase(const ShaderClosure *sc, const float3 I, float3 omega_in, float *pdf) |