Yamyam: 1版をインポートしました

2018-06-28T21:08:39Z

1版をインポートしました

wiki>Klutz: /* Anamorphic Bokeh */ typo

2014-11-06T07:20:02Z

‎Anamorphic Bokeh: typo

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= Blender 2.72: Cycles =

[[File:Blender 272 cycles scatter visibility.jpg |400px|thumb|right|Light influences the Volume on and off.]]
== Volume Rendering ==
Volume sampling options can now be configured per world or material, and apply to both homogeneous and heterogeneous volumes. The sampling method can be "Multiple Importance", "Distance" or "Equiangular".

If you've got a pretty dense volume that's lit from far away then distance sampling is usually more efficient. If you've got a light inside or near the volume then equiangular sampling is better. If you have a combination of both, then the multiple importance sampling will be better.

[[File:Quick.smoke.nodes.png |400px|thumb|right|Node setup created by Quick Smoke operator.]]

Other changes:
* For branched path tracing, "Sample All Lights" options now apply to both surfaces and volumes.

* Initial support for Volume Scatter Ray Visibility, to e.g. exclude lamps from having an influence on the volume. ({{GitCommit|cdd1d5a93c43}})

* Several performance improvements for Heterogeneous Volumes. ({{GitCommit|5af00a3d12cb}}, {{GitCommit|32a5313b4170}})

* When render engine is set to Cycles, "Quick Smoke" now generates a basic node setup for smoke and fire in Cycles. ({{GitCommit|9460fe3fa055}}, {{GitCommit|7b12c569d496}}, {{GitCommit|2633d0fac592}})

{{clr}}

== GPU Rendering ==
* Basic '''Volume Rendering''' is now officially available on GPUs. Note that advanced features are not available yet, check the documentation [http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Materials/Volume#Limitations here] for details. ({{GitCommit|8d0b3e990254}})

* '''Subsurface Scattering''' and '''Correlated Multi Jitter''' sampling can now be used on GPU as well, but it's still considered experimental: [[Doc:2.6/Manual/Render/Cycles/Experimental_Features|Experimental feature]]. We also recommend a GPU with at least 2GB of VRAM for this one. ({{GitCommit|fb3f32760d68}})

{{clr}}

[[File:Blender272_cycles_ggx_sampling.jpg|450px|thumb|right|Old and New Glossy Sampling.]]

== Optimizations ==
* Importance sampling for Glossy and Anisotropic BSDFs has been improved, which results in less noise per sample. The gives increased render time as well, but it's generally more than compensated by the reduction in noise.

* Decreased memory usage during rendering. ({{GitCommit|49df707496e5}}, {{GitCommit|0ce3a755f83b}})

* CPUs with support for AVX2 (e.g. Intel Haswell) render a few percent faster. ({{GitCommit|866c7fb6e63d}})

{{clr}}

== Shading ==
* Anisotropic BSDFs now support three distributions: Beckmann, GGX and Ashikhmin-Shirley, the same as the Glossy BSDF. These distributions do not suffer from energy loss at grazing angles (edge darkening) as much as the previous distribution.

* Glossy BSDFs now support the Ashikhmin-Shirley distribution.

* Split the "No Caustics" option into two, so artists can only disable/enable refraction or reflection caustics. ({{GitCommit|8243c55f14ae}})
[[File:Blender 272 Cycles caustics.jpg|800px|thumb|center|All caustics on, only reflection, only refraction.]]

{{clr}}

== Anamorphic Bokeh ==
Anamorphic bokeh can now be simulated with the aperture ratio settings.

This affects the general look at the shot since even when the bokeh is not evident the depth of field shows a very particular vertical style. ({{GitCommit|146ed67d5591}})
[[File:Manual_cycles_camera_aperture_rate.gif|550px|thumb|center|Anamorphic Bokeh]]

{{clr}}

== Nodes ==
Add Separate/Combine XYZ nodes for vectors. ({{GitCommit|3de3987ea190}})

== Baking ==
* Baking progress updates the progress bar in the Blender interface. ({{GitCommit|fc55c41}})

* Render tiles influence baking memory usage, allowing for larger bakes in GPU. ({{GitCommit|983cbaf}})

== Open Shading Language ==
* OSL has been updated to version 1.5, which results in a better performance.

* Add support for generated and packed images along with video files to the OSL backend. ({{GitCommit|baa0f0ee1ace}})

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Yamyam: 1版 をインポートしました

wiki>Klutz: /* Anamorphic Bokeh */ typo

Yamyam: 1版をインポートしました