Did anyone got this to work?
The colors did import as colorSet1 from Maya.
Exporting this colorSet1 and importing back into Maya didn't work.
A bit unexpected as I was more afraid that material bindings wouldn't work but that did work.
Using the abcecho line command the alembic file does look different to the one exported from Maya.
Maya export:
CompoundProperty name=.arbGeomParams;schema=
CompoundProperty name=colorSet1;schema=
ArrayProperty name=.vals;interpretation=rgba;datatype=float32_t;arraysize=1560;numsamps=1
ArrayProperty name=.indices;interpretation=;datatype=uint32_t;arraysize=1560;numsamps=1
Houdini Export:
CompoundProperty name=.arbGeomParams;schema=
ArrayProperty name=colorSet1;interpretation=rgba;datatype=float32_t;arraysize=1560;numsamps=1
Normals and uv's are imported simular though and do work.
Using red, green, blue, alpha didn't work either.
Neither did Cd or Cd
So anyone got any good news for me?
cheers,
benS
SOLVED: Alembic vertex colors export for Maya
26936 9 5- ben5ch
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- Sadjad Rabiee
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- ben5ch
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Oke thanks yes I read about this SOuP thing in another post but odforce is offline.
Someone here pointed me to the -rcs flag for the AbcImport MEL command in Maya:
AbcImport -mode import -rcs “houdini_sphere.abc”;
This actually worked when the incoming colorSet1 attribute is exported again!!!
Seems the name is not critical. Any attribute that is type “float” with size 4 and has the type qualifier set to “color” will work.
cheers,
benS
Someone here pointed me to the -rcs flag for the AbcImport MEL command in Maya:
AbcImport -mode import -rcs “houdini_sphere.abc”;
This actually worked when the incoming colorSet1 attribute is exported again!!!
Seems the name is not critical. Any attribute that is type “float” with size 4 and has the type qualifier set to “color” will work.
cheers,
benS
- northupfox
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***EDIT*** I was writing this while you were replying…glad you got it.
This is one of the secret gems of Alembic that is woefully under documented.
Any vertex vector attribute on your geometry thats listed by Houdini as name.r,name.b,name.g on Alembic export can import and connect directly in Maya by simply adding -rcs to your import string.
The color set will be named the same as the attribute name in Houdini.
Unfortunately the Maya Alembic Import GUI doesn't have this option, but the script is super easy.
AbcImport -rcs “/path/to/myColorFile.abc”
Vector attributes listed as name.x,name.y,name.z OR name.0,name.1,name.2 will not work, so you need to double check the type on creation and editing.
The workflow suggested by Joker386 is the way to go for other arbitrary attributes, but fortunately multiple color attributes can be used to store most data that you may need.
Hopefully that helps.
This is one of the secret gems of Alembic that is woefully under documented.
Any vertex vector attribute on your geometry thats listed by Houdini as name.r,name.b,name.g on Alembic export can import and connect directly in Maya by simply adding -rcs to your import string.
The color set will be named the same as the attribute name in Houdini.
Unfortunately the Maya Alembic Import GUI doesn't have this option, but the script is super easy.
AbcImport -rcs “/path/to/myColorFile.abc”
Vector attributes listed as name.x,name.y,name.z OR name.0,name.1,name.2 will not work, so you need to double check the type on creation and editing.
The workflow suggested by Joker386 is the way to go for other arbitrary attributes, but fortunately multiple color attributes can be used to store most data that you may need.
Hopefully that helps.
- ben5ch
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- Sadjad Rabiee
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- awong
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This is an old post, but just a quick update on this. We've made a minor change in our Alembic export so that Maya should recognize the Houdini colors by default. This means users shouldn't need to manually add the “-rcs/-recreateAllColorSets” flag in the AbcImport command.
The attribute still needs to have the color qualifier (i.e. 3fc or 4fc). And, as before, the attribute needs to be a vertex attributes.
The change should be in the next daily build (14.0.394).
The attribute still needs to have the color qualifier (i.e. 3fc or 4fc). And, as before, the attribute needs to be a vertex attributes.
The change should be in the next daily build (14.0.394).
Andrew / アンドリュー
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