I have seen many cases where parts of the HeightField are transformed into mesh(for example: https://www.sidefx.com/forum/topic/68147/), but how is this done?
The Convert HeightField node does not support access mask and can only convert the entire HeightField to a mesh.
How to convert HeightField to mesh by mask?
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- misakacirno
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- DavideMiozzi
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You can use a HF Cutout by Object node (https://www.sidefx.com/docs/houdini/nodes/sop/heightfield_cutoutbyobject.html), which will convert the Height Field into a VDB, then convert it to polygons with a VDB convert node.
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- misakacirno
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大卫·米奥齐Thanks for your reply, but this way can only get regular areas, and I want to get some specific areas by Mask By Feature, this way doesn't seem to work.
You can use a HF Cutout by Object node (https://www.sidefx.com/docs/houdini/nodes/sop/heightfield_cutoutbyobject.html), which will convert the Height Field into a VDB, then convert it to polygons with a VDB convert node.
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- DavideMiozzi
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- gorrod
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- jsmack
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misakacirno大卫·米奥齐Thanks for your reply, but this way can only get regular areas, and I want to get some specific areas by Mask By Feature, this way doesn't seem to work.
You can use a HF Cutout by Object node (https://www.sidefx.com/docs/houdini/nodes/sop/heightfield_cutoutbyobject.html), which will convert the Height Field into a VDB, then convert it to polygons with a VDB convert node.
The channel used for cutout is Alpha, although getting houdini to understand that the layer called 'alpha' is for cutout is another problem entirely.
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- misakacirno
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- misakacirno
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- misakacirno
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jsmackI've made a few attempts, but haven't managed to use mask as alpha.misakacirno大卫·米奥齐Thanks for your reply, but this way can only get regular areas, and I want to get some specific areas by Mask By Feature, this way doesn't seem to work.
You can use a HF Cutout by Object node (https://www.sidefx.com/docs/houdini/nodes/sop/heightfield_cutoutbyobject.html), which will convert the Height Field into a VDB, then convert it to polygons with a VDB convert node.
The channel used for cutout is Alpha, although getting houdini to understand that the layer called 'alpha' is for cutout is another problem entirely.
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