why can't load big 3ds

[titandd]

i rewrite some codes to load 3ds model,
when the model at 3-4K,it run perfectly,
but it can't load 3-4M models.why?

i check variable types,they are correct.
i haven't find overflow either.

it is same to many example codes i have download.

[PeterP]

The 3ds format have a limit where each object can have a maximum of 2^16 (~65535) vertices.

Sorry, but the only way is to use another format or write your own exporter.

[titandd]

now,after adjusting some variable type,the data imported seems correct.
the new question comes on about display format ,i'm looking for the wrong place.
thanks anyway.