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2012-02-13T14:32:20Z

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== Blender 2.62: Cycles ==

==== Multi GPU Rendering ====

[[File:Cycles_262_compute_device.png|right]]
The [[Doc:2.6/Manual/Render/Cycles/GPU_Rendering|GPU devices used for rendering]] can now be selected in the User Preferences, in the System section. There is a choice between CUDA and OpenCL, and one GPU or all GPU's. Once this is configured, for each scene it's then still possible to select CPU or GPU rendering (usually depending if the scene is expected to fit in GPU memory). - {{Commit|43238}}

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==== Render Layers and Passes ====

[[File:Cycles_passes_combine.png|right|300px]]
Support for [[Doc:2.6/Manual/Render/Cycles/Passes|Render Layers and Passes]] has been added. - {{Commit|42807}}, {{Commit|43693}}

Layers can be used to split objects in the scene into multiple layers that can then be individually tweaked and composited together.

Passes can be used to split rendered images into colors, direct and indirect light to edit them individually, and also to extract data such as depth or normals.

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==== Environment Map Sampling ====

Rendering of more complex environment maps is much less noisy when enabling the new [[Doc:2.6/Manual/Render/Cycles/Integrator|Sample as Lamp]] option in the World properties. This option will analyze the environment lighting and allocate more samples to directions where more light is expected to come from.

In a preprocessing steps, the environment lighting is 'baked' into an importance map, and the resolution of this map can be configured. A higher resolution will better detect small features in the map and give more accurate sampling, but conversely also take up more time in preprocessing. - {{Commit|43567}}

[[File:Cycles_262_env_sample_post.png|thumb|center|300px|Default, 100 samples]] [[File:Cycles_262_env_sample_pre.png|thumb|center|300px|Sample as Lamp, 100 samples]]

==== BVH Caching ====

For renders where only the camera or materials are changing, while meshes stay fixed, it is now possible to skip the sometimes slow BVH step, by enabling BVH Cache in the Performance panel. This will store the BVH on disk for subsequent (animation) renders of the same scene. Note that if the scene does change in the animation, enabling this option will make rendering somewhat slower. - {{Commit|43422}}

For a render, it will save bvh files to the cache user directory, and remove all cache files from other renders. The files are named using a MD5 hash based on the mesh, to verify if the meshes are still the same.

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==== Nodes ====

[[File:Cycles_262_checker_texture.png‎|right|300px]]
The Normal, Gamma and Brightness/Contrast nodes as already existed for Blender Internal shaders and compositing are now available for Cycles too. - {{Commit|42669}}, {{Commit|42671}}, {{Commit|43666}}

A Checker texture nodes can be used to easily generate checkerboards. - {{Commit|43223}}

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==== Other Changes ====

* Border rendering is now supported - {{Commit|42765}}
* Various small UI improvements were done in the node and material editor - {{Commit|43193}}, {{Commit|43195}}, {{Commit|43624}}, {{Commit|43625}}, {{Commit|43677}}

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Yamyam: 1版 をインポートしました

2012年2月13日 (月) 14:32にwiki>Brechtによる

Yamyam: 1版をインポートしました