assimp/test/models/invalid/readme.txt

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GENERAL
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The files in this directory are invalid ... some of them are empty,
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others have invalid vertices or faces, others are prepared to make
assimp allocate a few hundreds gigs of memory ... most are
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actually regression tests, i.e. there was once a bugfix that
fixed the respective loaders.
This test case is successful if the library (and the viewer) don't
crash.
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FILES
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box_nested_animation_4286.dae - This was reported as GH#4286.
The "count" parameter in "Cube-mesh-positions-array" is too small.
OutOfMemory.off - the number of faces is invalid. There won't be
enough memory so std::vector::reserve() will most likely fail.
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The exception should be caught in Importer.cpp.
empty.<x> - These files are completely empty. The corresponding
loaders should not crash.
malformed.obj - out-of-range vertex indices
malformed2.obj - non-existent material referenced