Light cache suddenly SLOW urgent help needed (settings included)

[joshhodgson]

I have a simple scene in 3DS it has a few proxies using forest pro (See images) it worked fine then all of a sudden the light cache WILL NOT RENDER (it takes about 3 hours before any pixels appear at all) Iv'e tried hiding objects and trying again to no avail the problem began after I added grass on the flat plane adjacent to the building. However deleting this grass and plane does not solve the problem! Im getting really P!ssed off now any help is really appreciated.

 

only a small amount of displacement in the scene and deleting these objects made no difference deleting all proxies makes no difference either

Edited March 13, 2016 by joshhodgson

[simonm]

try merging into a new scene.

 

I have a simple scene in 3DS it has a few proxies using forest pro (See images) it worked fine then all of a sudden the light cache WILL NOT RENDER (it takes about 3 hours before any pixels appear at all) Iv'e tried hiding objects and trying again to no avail the problem began after I added grass on the flat plane adjacent to the building. However deleting this grass and plane does not solve the problem! Im getting really P!ssed off now any help is really appreciated.

 

only a small amount of displacement in the scene and deleting these objects made no difference deleting all proxies makes no difference either

[Bruce Hart]

Hey Josh

Unless you are doing some kind of really detailed interior, there's no need to use a LC subdiv value of 3000. Try turning it down to the default of 1000 and increasing the Dynamic Mem Limit to 8000. (Assuming you have 16GB RAM or higher)

[mattijsdebruin1]

any double sided materials on the plants? Check those, see if thats the problems. Might be a good idea to check your materials.

[joshhodgson]

Thanks for the help guys Il try increasing the Dynamic memory The plants are using forest pro using default models not sure about the materials Il see what happens with the LC subdiv.

[Larissa Holderness]

This is happening to me as well. Using a matoverride on everything except glass. LC is taking FOREVER on a scene that was rendering fine yesterday. Nothing has changed other than the day.....

[Msamir]

Merging to a new scene like Pixel man suggested would probably solve it.

[rogue3d]

try moving the camera an inch. sounds stupid. but it's worked in the past I have no idea why.......

Here's a link to a Dynamic Memory Calculator based on RAM and OS.

http://zdesigninfo.blogspot.com/2012/10/vray-dynamic-memory-limit-calculation.html