Chaos Corona Forum
Chaos Corona for 3ds Max => [Max] Bug Reporting => Topic started by: WAcky on 2018-08-21, 10:46:42
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Hello there,
I always use a daylight system to make sure I'm rendering with plausible sun angles for a given site's location.
I noticed (mid-way through a project) that the CoronaSun now has a target. Interesting... Thankfully I tried moving the target to see what happened, and oh dear, it completely changed the angle of the sun, even though I'm using a daylight system... It should all be locked down, shouldn't it? (unless in manual mode).
I've been switching over to a vraysun to see if the CoronaSun matches vraysun and nope, it doesn't seem to care where I put the target or the Daylight compass, it's completely different from the vraysun result.
Whats the deal here? This seems like a remarkably dangerous bug if it is indeed a bug.
Edit: well no other sun but the coronaSun produces direct light it seems in Corona, so in fact I have no way to be sure the coronaSun is in the right position...
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What Corona version do you use?
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2.0
Upon further investigation, it seems that if the CoronaSun's target isn't perfectly aligned with the Daylight's compass then the sun angle is incorrect. Now that I know it's fine, but this could land someone in a lot of trouble if they don't realise it...
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Hi. This is a known bug in v2 that is quite serious, and I sure hope they'll fix it soon.
So far there's 2 workarounds:
1 - create (move) the sun at 0,0,0
or
2
- create a Corona sun, uncheck "targeted", delete the sun
- create a daylight system as you're used to. The sun will now "remember" the untargeted setting
Hope it helps until this get fixed
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I can't remember this being reported, so i'm moving this topic to bug reporting board.
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Sounds like it's related to this:
https://forum.corona-renderer.com/index.php?topic=20780.msg128954#msg128954