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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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hello guys i have an alembic file that contains 250 frames , the object are only shown in arnold in 1-90 frames then it disappears !

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Message 1 of 6
hdk15778
383 Views, 5 Replies

hello guys i have an alembic file that contains 250 frames , the object are only shown in arnold in 1-90 frames then it disappears !

screenshot-1.pnghello guys i have an alembic file that contains 250 frames , the object are only shown in arnold in 1-90 frames then it disappears !

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Message 2 of 6
Stephen.Blair
in reply to: hdk15778

Post a detailed Arnold log for a frame.



// Stephen Blair
// Arnold Renderer Support
Message 3 of 6
hdk15778
in reply to: hdk15778

screenshot-2.png is this what you want ?

Message 4 of 6
Stephen.Blair
in reply to: hdk15778

The geometry is invalid:

WARNING| resetting parameter vlist on X (found: nans or infs)			

vlist is the list of vertices. Some vertex coordinates are not a number or infinite values, so Arnold resets the list of vertices, and then there are no vertices.



// Stephen Blair
// Arnold Renderer Support
Message 5 of 6
hdk15778
in reply to: hdk15778

Message 6 of 6

Here's a similar issue: https://answers.arnoldrenderer.com/questions/18550/degenerate-polygon-objects-found-in-frame-x-error...

The user had to add a clean node in Houdini to delete the invalid values and reexport the alembic file.

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