[Bf-cycles] serious bug with Curves BVH build

[Sergey Sharybin]

Hi,

In such case you're most likely hitting numeric overflow
in PRIMITIVE_UNPACK_SEGMENT/PRIMITIVE_PACK_SEGMENT.

On Thu, Nov 10, 2016 at 8:45 PM, Mohamed Sakr <3dsakr at gmail.com> wrote:

> more info:
> this happens when Curve got more than 32k keys (Int16), 1<<15 key points
> in 1 Curve.
> any idea? it builds bad BVH for this case.
>
> On Wed, Nov 9, 2016 at 3:01 AM, Mohamed Sakr <3dsakr at gmail.com> wrote:
>
>> Hi,
>>
>> there is a perma crash in BVH build for curves.
>> leaf got #DEN values.
>>
>> we got the build of 12th October, my CPU is I7 3930k.
>>
>> anybody else encountered such crashes? (all BVH types crashes, aligned or
>> not aligned, static/dynamic, QBVH, ..)
>>
>> this happens only with curves.
>>
>> cheers,
>> Mohamed Sakr
>>
>
>
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>
>


-- 
With best regards, Sergey Sharybin
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