Topic: Restart the rendering of an amination.

[stephenhughes99]

Hey guys,

does anyone know if it's possible to restart the rendering of an animation from a certain frame ie. the last one that was rendered.

Basically i have a flythrough to render so when i finish work i set it up to render overnight. but when i come in the next day it is only 2/3 done. So i have to cancel it to use the computer to work for the day. If the last frame rendered was, say, frame 2467, is there another way i can start the render again from that point and render out only frames 2468 onwards??

Any help on this would be great. Cheers.

[Gaieus]

Unfortunately (to my best knowledge), this is not possible. It would be best to make your fly-through from several clips (you can still make it smoothly transitioning from one to the next) so that when you need to re-render something, you only have to render those clips.

I do not know if it is possible to batch render clips (selecting several ones but not all) in v.2 - in v.1 that is not possible either.

[byzantium1200]

does anyone know if it's possible to restart the rendering of an animation from a certain frame ie. the last one that was rendered.

Even if it were it would not be of much use. The movement of plants, animated objects (clouds?) would be discontinuous. However you can render clips individually.

Isn'it it the idea of RT rendering, you would not mind restarting much.

[stephenhughes99]

Isn'it it the idea of RT rendering, you would not mind restarting much.

That would be correct if it was ACTUAL realtime rendering, but it isn't. Until we get down to 30 frames per second rendering time as opposed to 4-5 seconds per frame, for a finished animation then i can't really call it realtime rendering. Realtime creation and viewing yes, but not final production rendering. The beauty of this software is getting up-to-date feedback for setting up the camera path etc and leaving out about 97% of the guesswork, and while 4-5 second frame rendering is great for a movie compared to other 3d packages, it's still a bit strange that a short movie (5 mins) takes almost a full day to render up.

For now i think i'm just going to record a video screencapture of the flythrough playing on theatre mode. To have to wait 17-odd hours for the small difference in quality between the viewport and the rendered frames is not worth it for me.

I suppose it shows how close it is to being so good that the viewport screencapture will satisfy most clients. Its just that the final 3% takes so long!!!

[byzantium1200]

Actual RT would need a card 180 times faster than a GTX-580 which takes about 5-6 secs per frame on the average with 3 stars at Full HD. It gets to about 0.7 secs with two stars which is still better than screen capturing. Did you try that?

[Morten]

Even if it were it would not be of much use. The movement of plants, animated objects (clouds?) would be discontinuous. However you can render clips individually.

Ferry is aware of this issue, and mentioned that he would like to try to synchronize the animated content, so that if you render a movie twice it will look identical. As you can imagine, this is a prerequisite for being able to render a selected frame sequence within a clip.

[byzantium1200]

so that if you render a movie twice it will look identical.

Are the birds, leaves at the same point for every render of the same clip?

[cpercer]

That would be correct if it was ACTUAL realtime rendering, but it isn't. Until we get down to 30 frames per second rendering time as opposed to 4-5 seconds per frame, for a finished animation then i can't really call it realtime rendering. Realtime creation and viewing yes, but not final production rendering. The beauty of this software is getting up-to-date feedback for setting up the camera path etc and leaving out about 97% of the guesswork, and while 4-5 second frame rendering is great for a movie compared to other 3d packages, it's still a bit strange that a short movie (5 mins) takes almost a full day to render up.

For now i think i'm just going to record a video screencapture of the flythrough playing on theatre mode. To have to wait 17-odd hours for the small difference in quality between the viewport and the rendered frames is not worth it for me.

I suppose it shows how close it is to being so good that the viewport screencapture will satisfy most clients. Its just that the final 3% takes so long!!!

Don't forget that effects can only be applied in movie creation mode.  I don't know what I'd do without DOF.

[peterm]

To have to wait 17-odd hours for the small difference in quality between the viewport and the rendered frames is not worth it for me.

I suppose it shows how close it is to being so good that the viewport screencapture will satisfy most clients. Its just that the final 3% takes so long!!!

If you are only needing a small difference in quality then to reduce the render times perhaps you can use one of the lower render Star settings.  Star 2 could be ideal for what you need and is definitely much faster to render.

Render times also depend on how many video effects are applied as either main movie effects or clip effects, so finding a balance in the use of those with speed of output is I guess part of the skill in using Lumion.

[Morten]

Are the birds, leaves at the same point for every render of the same clip?

No, hence the need to synchronize all animated content and effects in the future, if it should be possible to render movies twice and ensuring that they are identical.