LuxCoreRender Forums

Just have a problem with a scene when PGI is enable :
same with CPU or OPENCL or AMD or NVIDIA.I'm trying to reproduce the problem on a simpler and uploadable file.

Are you using a persistent cache file ? That is an IO error like if there was an error writing/reading the file.

Yes i was using one but when the Problem happen i decide to compute a new one in another folder. So i just change the original folder emplacement and check compute and save . And it happen again so i decide to uncheck compute/save and it work again.

As it work i decide to check compute/save again and then ___________ ios_base::failbit ******** error happen again.

Sharlybg wrote: ↑Tue May 28, 2019 9:23 am Yes i was using one but when the Problem happen i decide to compute a new one in another folder. So i just change the original folder emplacement and check compute and save . And it happen again so i decide to uncheck compute/save and it work again.

As it work i decide to check compute/save again and then ___________ ios_base::failbit ******** error happen again.

It sounds like you get an error overwriting/deleting the old file. Try to delete the file by hand. Do you get an error ?

Are you suing some special character in the file name ?

Isn't this permission issue? Try runing blender as administrator or if you already are, then as non administrator...

It sounds like you get an error overwriting/deleting the old file. Try to delete the file by hand. Do you get an error ?

Are you suing some special character in the file name ?

if you're talking about .pgi file name no ( i never worried about giving it a special name as this was automatic and work very well before). the Blend file name is Simply MAKEY.

Isn't this permission issue? Try runing blender as administrator or if you already are, then as non administrator...

Same as before

Can you try saving the file to another harddrive?
Do you have enough free disk space?

B.Y.O.B. wrote: ↑Tue May 28, 2019 11:23 am Can you try saving the file to another harddrive?
Do you have enough free disk space?

i've 70GB free SSD disk space. also other file work very well saving .pgi file on same disk or other one.

Finally find something to kill this problem.

I just compute a cache frome another project and copy/rename it for my problematic project. and then check compute/save to overwrite the fake cache. It work now

But i ve to admit that i encounter to much crash on this scene when PGI is enable. And it become worse with PGI+Opencl. Luxcore crash blender without print error.
And sometime luxcore tell me that render can't continue because image blablabla located in appdata/temp folder is mixing : but this is too strange because i don't use this image in my project. And when i create an image with same name in the appdata/temp folder luxcore tell me another one is missing.
Then i decide to copy the blend file (since the beginning all textures are packed in the blend file) on my desktop. Then i relaunch blender with the copied file on the desktop and decide to do first render on cpu no pgi. It work. Then switch to cpu + pgi . It work. Then switch to cpu + compute/save pgi . Then missing images i don't use on my project error start again. And the project start to crash for everything.

So i decide to append all blend mesh into a new fresh blend file. Crash stop until i check pgi or opencl or compute save.


Edit : it seem that my hanging plants particles system is problematic. So go to check why