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preview doesn't match render?
Posted: Wed Mar 28, 2012 5:08 am
by JPMays
Anyone know why my render is not matching my preview?
Enlarged preview:
You can see that the preview window shows nice shadows and sun coming in through the glass, but the actual render does not match. What gives?
Re: preview doesn't match render?
Posted: Wed Mar 28, 2012 5:19 am
by JDHill
It's because the preview shows where you will be after more SLs; looks like the render is only at SL8.3 or so, at this point in time.
Re: preview doesn't match render?
Posted: Wed Mar 28, 2012 5:26 am
by JPMays
Yeah, but there is nothing that remotely looks like the shadows there - shouldn't I see something like what's in the preview?
Re: preview doesn't match render?
Posted: Wed Mar 28, 2012 6:11 am
by JDHill
Well, there are two ways to make that happen: speed up the renderer, or slow down the preview. Since we can't arbitrarily elect to speed up the renderer, that leaves only one option.
Re: preview doesn't match render?
Posted: Wed Mar 28, 2012 6:14 am
by JPMays
Ok, I'll just accept that eventually it will look that way.
Thanks.
Re: preview doesn't match render?
Posted: Wed Mar 28, 2012 1:04 pm
by polynurb
you need high SL or try AGS in the windows or some other glass with a hint of a ghost layer to reveal the sun more quickly.
it's because of caustic light, and it is extrapolated in the preview hence much earlier visible.