animation twice as slow as single image

[muoto]

Hello,

i am working on an animation (irr map + lightcache maps saved every 20 frames). Everything works well, around 4' per frame, no moving objets, no flickering

But when i render just a single image by calculating the single irrmap and lightcache, i have 2' per frame.

So my question is, is this normal ?

Thanks !

edit: vray 1.5sp4a
edit2: saw another thread that had the same problem, alpha contribution is set to 1,0 everywhere

[Neilg]

That 2 minutes difference is probably static though - if your frame time was an hour with one it might be 1:02 with the other. I've noticed this before but assumed it was a combination of loading the maps and interpolating them.

Raise and lower your interp samples on both and see if it changes the time much, if so thats it.

[muoto]

I have used the low settings for the irr map and have only 100 samples for the lightcache, so that is quite low and shouldn't be to heavy to load...

[vlado]

It is somewhat normal, as V-Ray must do more work to clean up the flickering. You can reduce the render times by decreasing the "Interp. samples" value for the irradiance map.

Best regards,
Vlado

[muoto]

would it be better if i did an irrmap every 10 frames ?

[vlado]

No, this will not work; there must be one irradiance map for each frame.

Best regards,
Vlado