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Houdini渲染运动模糊分层Houdini Motion Vector AOVs ( render pass )

Houdini渲染运动模糊分层Houdini Motion Vector AOVs ( render pass )

learn how to render Motion Vector AOVs ( render pass ) in Houdini using a simple technique…

*also off “allow image motion blur” option while rendering*

Scene Explanation 00:00:00
Velocity Visualisation 00:01:26
Motion Vector AOVs 00:03:29

Code:
float speed = length(@v); ( length of velocity )
speed = fit(speed, ch(“min_speed”), ch(“max_speed”), 0, 1); ( remap values using fit function )
@Cd = chramp(“speed_color”, speed); ( assign color to fit value )

Pyro Motion Vector:
for pyro, There is a slightly different process check this image
https://drive.google.com/file/d/1Hcof_fj-yqcch8V5lr0BMRezdpmvs8yO/view?usp=sharing

Render Me node:
https://www.youtube.com/watch?v=4TBflyK19UY&list=PL-848CWAp0A5DOBIlB4sn1sCNubmPrndG

Set Houdini Hotkeys:
https://www.youtube.com/watch?v=sO4z3zUy2rc&list=PL-848CWAp0A5DOBIlB4sn1sCNubmPrndG&index=2

Sources:
https://www.sidefx.com/forum/topic/20217/?page=1#post-94767
https://www.sidefx.com/docs/houdini/vex/functions/fit.html
https://www.sidefx.com/docs/houdini/nodes/vop/getblurP.html
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SideFx Houdini: https://www.sidefx.com/

#houdini #motionvector #animation #vfx #magic
谷歌翻译：
了解如何使用简单的技术在Houdini中渲染运动矢量AOV（渲染过程）…

*渲染时也关闭“允许图像运动模糊”选项*

场景说明00:00:00
速度可视化00:01:26
运动向量AOVs 00:03:29

码：
浮子速度=长度（@v）; （速度的长度）
速度= fit（速度，ch（“ min_speed”），ch（“ max_speed”），0，1）; （使用拟合函数重新映射值）
@Cd = chramp（“ speed_color”，speed）; （将颜色分配为合适的值）

火焰兵运动向量：
对于pyro，有一个稍微不同的过程检查此图像
https://drive.google.com/file/d/1Hcof_fj-yqcch8V5lr0BMRezdpmvs8yO/view?usp=sharing

渲染我节点：
https://www.youtube.com/watch?v=4TBflyK19UY&list=PL-848CWAp0A5DOBIlB4sn1sCNubmPrndG

设置Houdini热键：
https://www.youtube.com/watch?v=sO4z3zUy2rc&list=PL-848CWAp0A5DOBIlB4sn1sCNubmPrndG&index=2

资料来源：
https://www.sidefx.com/forum/topic/20217/?page=1#post-94767
https://www.sidefx.com/docs/houdini/vex/functions/fit.html
https://www.sidefx.com/docs/houdini/nodes/vop/getblurP.html
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。
。
Get in Touch: contact@vfxmagics.com
Facebook: https://www.facebook.com/vfxmagics
Instagram: https://www.instagram.com/vfxmagics
Youtube: https://www.youtube.com/vfxmagics
Gumroad: https://gumroad.com/vfxmagic
Telegram: https://t.me/vfxmagic
SideFx Houdini: https://www.sidefx.com/

#houdini＃运动矢量＃动画#vfx＃魔术

（提取码：vfxf）
（提取码：vfxf）