Express Video 2 - Wedge node
Sun, 05/31/2009 - 14:06 — takerz81
Wedge nod의 Help 문서를 번역했는데 허접합니다 걍 참고 하시라고 ^^
Wedge render node
같은 ROP를 다른 세팅값으로 여러번 랜더링
Wedge ROP는 지정된 ROP를 여러번 렌더하는 기능이다
Parameters
Render
render control setting을 렌더한다
render control
렌더링전에 렌더 파라미터를 조정하기 위한 control dialog를 오픈
render with take
렌더링하는 동안 특정한 take에 사용된 세팅을 사용
Prefix
Wedge variable 앞에 추가되는 String. 다른 값의 Wedge를 분류하기위해 사용됨
Wedge Range
모든 범위의 WEDGE를 렌더하거나 특정한 WEDGE만 렌더링 하고자 할때
Ouput Driver
Wait for render to complete
렌더링이 완료되기전까지 다른 사용을 막는다
Wedge Method
scene의 변화를 어떻게 컨트롤 할 것인가
by channels
Wedge 파라미터는 지정된 채널의 Step과 Range 값에 따른다
by Take
Parent Take
Random Samples
정해진 값을 대신해 무작위로 값을 뽑아낼 때 사용함
Number of Samples
Random Sampling mode에서 얼마나 많은 Wedge를 사용할지 결정한다
Random Seed
다른 종류의 Random Sample을 만든다.
Wedge Parameters
By Channel에 사용될 파라미터의 갯수
각각의 파라미터는 float 값
name
채널의 영어 이름. 빈칸일 경우 channel name 사용
channel
변화값을 줄 channel의 path.
range
변화를 줄 최소 / 최대 값
steps
random sampling 일경우 사용되지 않는다.
[Help 문서]
Wedge render node
Re-renders the same ROP multiple times with different settings
The Wedge ROP will render the specified ROP multiple times. Each time it will vary some parameters in the .hip file. This is useful for exploring how changing parameters will change the look for expensive functions.
The WEDGE variable will be set to a string that describes the current set of parameters. Using this in filenames output can ensure each wedge doesn’t conflict with the other wedges. Alternatively, if one is wedging to mplay, the individual wedges will render together. The output file could be set to filename_$WEDGE_$F.pic to ensure each wedge gets its own image sequence.
If wedging images, you can also use the hwatermark program to stamp the images with the wedge name. Setting the Post Frame Script to
unix hwatermark -x 4 10 -m "$WEDGE" `chs("vm_picture")` `chs("vm_picture")` $HFS/houdini/fonts_texture/Fixed-Bold.24
Parameters
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Render |
Begins the render with the last render control settings. |
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Render Control |
Opens the render control dialog to allow adjustments of the render parameters before rendering. |
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Render with Take |
Uses the settings in a particular take while rendering. Choose “Current” to use the current take when rendering. |
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Prefix |
This prefix is added at the front of the WEDGE variable. This can be used to separate different sets of wedges. |
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Wedge Range |
All Wedges will cause every computed wedge to be rendered at once. Alternatively, one specific wedge can be rendered. The latter is useful if manually splitting up the wedges across machines, which may be necessary for simulations. |
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Output Driver |
Which ROP will be run for each wedge. The ROP should have a parameter called “take” for take based wedging to work. If it outputs to a file, the filename should have $WEDGE in it to avoid writing the same file twice. |
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Wait for Render to Complete |
Sets the Block Until Render Completes temporarily on the Output Driver. This avoids all the wedges being started simultaneously, which can inconvenience a single-user machine. However, by not blocking, you can return control to Houdini quickly while waiting for the renders to run in background. |
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Wedge Method |
Controls how the scene is varied.
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Parent Take |
In By Take wedging, this is the name of the parent take. Only immediate children of this take are used for wedges. |
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Random Samples |
Instead of uniformally sampling each range, a random value will be picked inside the range for each sample. |
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Number of Samples |
Determines how many wedges will be run when in random sampling mode. |
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Random Seed |
The seed used for generating the random samples. Changing this will create a different set of random samples. |
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Wedge Parameters |
The number of parameters to use in By Channel wedging. Each paramater is a single float value which is divided uniformally across a given interval. |
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Name |
The english name of the channel. This is added to the WEDGE variable. If blank, the channel name is used. |
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Channel |
The channel path to vary. This is a full channel path, a path to a node followed by the name of a channel. Note that it is not a parameter path: /obj/geo1/tx is legal but /obj/geo1/t is not. |
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Range |
The minimum and maximum values that the channel will vary over. |
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Steps |
The number of steps that the range will be broken into. Ignored if random sampling is performed. |
Usages in other examples
