[ HOU-2339 ] Vray Proxy Crashes Houdini 18.5.351

[qassim_ali]

Hello,

I am having a problem with Vray Proxy node. Houdini crashes every time I am running the node and getting below message. I made sure that Vray proxy ROP is also available.

vrayProxyExport __int64 __cdecl OP_Parameters::evalIntT(const class UT_StringRef &,int,double,int) const: Invalid parameter name use_global_no_bitmap
vrayProxyExport __int64 __cdecl OP_Parameters::evalIntT(const class UT_StringRef &,int,double,int) const: Invalid parameter name use_global_no_bitmap
vrayProxyExport void __cdecl OP_Parameters::evalStringT(class UT_String &,const class UT_StringRef &,int,double,int) const: Invalid parameter name no_bitmap_texture
10632: Fatal error: Segmentation fault

Any ideas will be appreciated.

[chakarov]

Hello qassim_ali , I've reproduced and reported the problem.

[qassim_ali]

chakarov i was able to create the proxy, it can only be created if you have no other geo nodes in the hip file. Beside even after importing it, the material will disply as per the proxy mesh not as the orginal mesh ?

[Gosho.Genchev]

Hey qassim_ali ,

could you please go to the main menu -> V-Ray -> About V-Ray and hit the "Copy to Clipboard" button then paste the information here ?

Creating the V-Ray Proxy SOP should not cause a crash. There's a marginal slowdown when using the default "Simplify Combined" option which you can bypass by using the faster "Face Sampling" option from the "Simplification Type" dropdown instead.

Best regards!

[qassim_ali]

Hi Gosho.Genchev ,

Thanks for the reply. I switched to Face Sampling, but still it crashes Houdini. Please see attached pic.

V-Ray for Houdini hash:faf8cf1 from 16 Dec 2020 18:11
V-Ray Core 5.00.50 [c3af6122] from 15 Dec 2020

[Gosho.Genchev]

Hey qassim_ali ,

I understand. In that case, could you please share the scene so we can figure out what is causing the crash? Feel free to email it directly to gosho.genchev@chaosgroup.com in case you'd rather not share it on the forums.

As a side note - we've put a lot of development effort into improving our Alembic support so unless using proxies is absolutely a requirement, I would suggest using the ROP Alembic Output instead.

Best regards!