3Delight Rendering

pkappetein

I have about 500 frames that I want to render for a movie,  and when I was doing that it took about 90 minutes. (All the Dream Home items in my scene)

Then I noticed i forgot to buy the Roofs (stupid me)  so  I bought those and added those in,  and added a Storm Dome to it.  so it has the lights and whatever in it.

I renderered 200 frames, and took  4 hours.   about 1-2 minute per frame  (and was 20-25 seconds before)

That's a huge difference,  so I decided what caused the problem,  so I removed the Dome, started Rendering, and still didn't make a difference..

Then I removed the Roofs,  and still no difference...??

I decided to close the project and open it back up, and then the speed was fast again, until i added those items back in,

I noticed that in the beginning it was optimizing all the items before doing the rendering,   and I don't see that after I removed  the roofs and dome.

Could that be the problem?   or is there another way to improve the speed ?

I have the 3Delight selected and everything is default

 

Richard Haseltine

Optimising is converting the textures to the multi-resolution.tdl format (3delight uses the smalles size that will fit the scene to save memory). It needs to be done only once per session for any image file, assuming the gamma settings aren't changed.

pkappetein

Aah Thank you.

Are there some tricks to increase the speed?

 

Richard Haseltine

It depends on what you are doing now, and where the slow-down is occurring. SOmetimes adjusting render Settings or shader settings, or using one of the AoA Advanced lights, will help with render spped in 3Delight. More light generally helps with render speed in Iray.

pkappetein

In the other Thread, I had posted a video where i had a double room, where it was messing up the texture.

Since then I am doing that same video,  but then with a Roof and added a  Storm Dome  into it.

That's when  it became so slow..

If I just remove the storm Dome, that's not making a difference..(since that was including all the lights in that one..)

Unless you can set all of that for the Dome properties.

But since I had removed that,  it didn't make any difference.

btw.   Are All the Render Settings also saved within the DUF file of your scene?

 

 

Richard Haseltine

So just adding the roof alone causes a slow down? is this 3Delight or Iray?

Yes, by default render settings save and load with the scene - you can adjust that in Edit>Preferences. Scene subsets and presets don't however save the render settings.

pkappetein

In 3Delight.

it went from 15-25 seconds per frame to  1-2 minutes per frame

That's why I am so puzzled.

Disabling / hiding the items,  doesn't make a difference.

 

I tried Iray,  but after 20 minutes for 1 frame,  I gave up on that part..  

Richard Haseltine

I'm surprise one element makes that much difference, but I don't know why it would do so.

pkappetein

I really don't know..

Continued rendering and it did 90 images in 2 hrs and 20 min.

It used to be 30 min only :(

Got 300 images left,  so total time is 13-15 hrs  vs.  1 Hr

20 Seconds of movie

pkappetein

OK, 

I started over and got everything in place, Except  the Dome.

Now I have the speed back again..  (No clue what happened before)

....BUT... When I add the Dome,  then it's becoming real slow again.   

Is there a way to improve that ( It's a Thunder Dome from some other scene, that has all the lights in it)

 

Richard Haseltine

Ah, if the dome has a lot of lights that wills low 3Delight down - espeically if they are casting shadows.

pkappetein

Aah ok..  I will check into that then..

Odd when i removed it from my other project, it didn't made a diference...  I checked the settings for rendering and couldn't find anything wrong.

 

pkappetein

ok, played with the dome,

and it's caused by "Image Based Light (Soft Shadows)" that in the Dome

If I turn that one off, then things are going fast again..   

So need to see if there are settings I can mess with to increase the speed.

Richard Haseltine

That's uberEnvironment (1 or 2), there are various quality/speed settings for that with which you can experiment though it will always be slower than simpler lights. It's probably worth checking your 3Delight render settings have Progressive on (which tends to be faster but can make noise issues worse).