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mostfa omar avatar image
mostfa omar asked ·

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 !

arnoldalembic
screenshot-1.png (376.5 KiB)
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Peter Horvath avatar image
Peter Horvath answered ·

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

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

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mostfa omar avatar image
mostfa omar answered ·
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Stephen Blair avatar image
Stephen Blair answered ·

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.

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mostfa omar avatar image
mostfa omar answered ·

screenshot-2.png is this what you want ?


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Stephen Blair avatar image
Stephen Blair answered ·

Post a detailed Arnold log for a frame.

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