Hi
I am trying to render a scene with about 1.3million polys in 1280x720. I get a clear render in 4 passes but it takes about 2 hours to finish those passes. I am geting 700K I was wondering if there was a way to improve this. I suspect its mostly to do with my slow computer but if I can improve on that it would be great.
Thanks
Can you show screenshot of material setting?
your Rays per sample are way to high.
Thats why it takes so long for 4 passes.
maybe you find help here.
https://coronarenderer.freshdesk.com/support/solutions/articles/5000501982-rays-per-sample-too-high
greetz
Lucutus
Why “Light Samples Multiplier” 5? Try to change 2, which is about 2 times faster.
Hi I was increasing the samples because I thought it was taking more time as it didn’t have enough samples to solve. I have now reverted to the default settings which are much faster but its hard to get rid of the noise. It seems to be something to do with being in a tunnel and light placements. I have two corona disc lights facing down the tunnel at either end. If I have them facing down then i get a much cleaner result quicker. I tried with a cylinder and basic material.
What is this material? o_o
Its a standard corona material with those settings I am trying to do a SSS material I saw similar setups in the help doc. with the default setting its takes 10-15 minutes do to a single pass thats what i was trying to improve.
But this material is applied to the tunnel object? Is this tunnel a solid object?
I would suggest reverting GI and LSM values to defaults. It renders slow probably because of SSS effects covering a big area. Does it also render so slowly if you use another material (for example use a basic grey material)? This could help identifying whether it’s caused by displacement or material. If it’s material, you could try using translucency instead of SSS.
Hi
thanks for looking into this.
I have reverted back to the default and now it takes 10-15 mins to do one pass, If i could improve that it would be great. As I will probably send this to a farm to render.
With a standard material its much faster but it does take a while to clear the noise, and I noticed this even when I have a simple geo around it like a cylinder. Is there an issue being in a small enclosed space.
I will try a translucent material as well.
I think the whole thing in the processor, amd processors run much slower with intel. if have is another comptr, check how it will speed.
Using single bounce and the default settings have helped a lot. Thanks for the tips.
I have sent it to be checked on another machine I am pretty sure that this is the main cause as the machine is old. but in general I have been getting good results with this machine thats why I was trying to see if I can make it a bit better
