Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: christofferthulin on 2015-03-03, 13:45:40

Title: Experiencing extremely slow render times with v 1.0
Post by: christofferthulin on 2015-03-03, 13:45:40
Hi guys

As the title says, compared to A7.

I am experiencing this with several scenes, all scenes I'm working with. Does not matter if it's simple or complex.

I attached a screenshot from a simple scene. A clay render only lit with an HDRI.

Five passes in one minute, 2500px wide. As I recall A7 would do at least fifty passes in the same amount of time.

Yesterday I tried to render a complex scene. The first pass would take hours. Not even vray would render the scene that slow.

I am a bit worried. Please help :)

/Christoffer
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: Image Box Studios on 2015-03-03, 14:08:36
Agree with Christoffer.....i am also facing same problem...A 7.2 was faster then V 1.0.
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: Alexp on 2015-03-03, 14:21:41
Me too, and more noisy in interior.
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: Kbexer on 2015-03-03, 14:22:50
Hey guys,

Did my first C1.0 render last night, i reached about 75 passes. With A7 i used to reach at least 200 passes and above depending on the scene.

Hope we can break this down,

/Karl

Title: Re: Experiencing extremely slow render times with v 1.0
Post by: FrostKiwi on 2015-03-03, 14:37:18
Just for misc reasons sake:
Check in the "devel/experimental" compartment, wether Embree is active, or if it falls back on legacy methods.
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: christofferthulin on 2015-03-03, 14:55:40
Here's my settings
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: 3dbybrunolopes on 2015-03-03, 14:56:10
Hi

Wheres is "devel/experimental" section in Corona? Are you using a daily?
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: Ondra on 2015-03-03, 17:38:41
you can enable the devel rollout in the performance rollout. But safer way to test this is to just use "Reset settings"
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: Image Box Studios on 2015-03-04, 08:18:02
Quote from: Ondra on 2015-03-03, 17:38:41
you can enable the devel rollout in the performance rollout. But safer way to test this is to just use "Reset settings"

Hi....i am not getting the devel rollout in the performance tab...from where i can enable. i am using demo version.

Also can you please define or explain what is the reason behind on slow renderings in V1.0.
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: maru on 2015-03-04, 09:15:59
Quote from: Image Box Studio on 2015-03-04, 08:18:02
Quote from: Ondra on 2015-03-03, 17:38:41
you can enable the devel rollout in the performance rollout. But safer way to test this is to just use "Reset settings"
Hi....i am not getting the devel rollout in the performance tab...from where i can enable. i am using demo version.

https://coronarenderer.freshdesk.com/support/solutions/articles/5000523916

Quote
Also can you please define or explain what is the reason behind on slow renderings in V1.0.
Hard to tell. Could be user error, some specific scene problem or a bug. We need more info.
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: christofferthulin on 2015-03-04, 09:25:02
Maru, what kind of info do you need?
Title: Re: Experiencing extremely slow render times with v 1.0
Post by: maru on 2015-03-04, 09:30:08
Quote from: christofferthulin on 2015-03-04, 09:25:02
Maru, what kind of info do you need?
For example:
-What does the scene look like? Is it very big or very small? Complex geometry? What kind of lights?
-Are there some specific features used like bump maps, normal maps, light mtl, ligts with directionality?
-Is it slow compared to A72 when using all uhd, hd or pt as secondary solver?
-Can you show screenshot of vfb > stats tab while rendering?