Author Topic: Dark areas in render scene  (Read 1917 times)

2021-02-11, 13:13:08

mngereso

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How do I get the dark areas highlighted in my render to be brighter?
Kindly help.

Corona for Cinema 4D user here
« Last Edit: 2021-02-11, 13:22:51 by mngereso »

2021-02-11, 14:31:37
Reply #1

Beanzvision

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Do these materials have any roughness enabled? They look extremely flat.
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2021-02-11, 14:40:42
Reply #2

mngereso

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Yes, there's a bump map on most of them, still tweaking values though to achieve my desired look.
But they're definitely there.

2021-02-11, 15:01:58
Reply #3

Beanzvision

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Hi, roughness is in regards to how much reflectivity a surface has. Hence why I asked if it has any. Bump is purely for breaking up a smooth surface.
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2021-02-11, 15:32:39
Reply #4

TomG

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Those just look like correct shadows to me. To be brighter - the materials themselves would need to be brighter; the ground would need to be brighter to bounce more light; you would need to fake it by adding an extra light that shines into the shadows; you'd adjust the position of the sun to be lower and at a different rotation so it shines more into that recessed area; you'd raise exposure (which would make the rest brighter, but this is just like real photography, if you exposed for recessed shadows, the exterior would become overblown); you could add some lighting in there that would match the real world (light bulbs, that the person living there turns on at night) and have them on. And so on.
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2021-02-11, 16:51:32
Reply #5

aler

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Those just look like correct shadows to me. To be brighter - the materials themselves would need to be brighter; the ground would need to be brighter to bounce more light; you would need to fake it by adding an extra light that shines into the shadows; you'd adjust the position of the sun to be lower and at a different rotation so it shines more into that recessed area; you'd raise exposure (which would make the rest brighter, but this is just like real photography, if you exposed for recessed shadows, the exterior would become overblown); you could add some lighting in there that would match the real world (light bulbs, that the person living there turns on at night) and have them on. And so on.
All this is very good, but when I switched from VRay to Corona, at first I was very surprised that the Secondary GI Engine does not have Multiplier / Intensity to make the dead areas brighter. TomG, yes, it looks like a real photo, but still the recommendations do not sound convincing, because for artistic reasons it may be necessary to adjust the dark. Therefore mngereso, will probably help either Photoshop > Camera RAW Filter, or Ray Switcher inside Corona ;-)

2021-02-11, 18:41:31
Reply #6

TomG

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If you want to adjust indirect lighting intensity, you could always render out the separate multipasses, and then you can adjust the Indirect multipass in post with raised Exposure just for that, etc. :)
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2021-02-11, 20:54:13
Reply #7

aler

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If you want to adjust indirect lighting intensity, you could always render out the separate multipasses, and then you can adjust the Indirect multipass in post with raised Exposure just for that, etc. :)
Thank, I'll keep that in mind :)

2021-02-11, 21:14:01
Reply #8

romullus

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@mngereso, what's your lighting setup? I think the shadows are too dark, maybe your enviroment light is underpowered compared to sunlight?
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2021-02-12, 23:09:46
Reply #9

BigAl3D

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Since Corona is trying to be physically accurate, what else is going on in that scene? If it's just a small plot of land with a house on it, that means there is nothing else to get additional light bounces to fill in some areas. Can't tell from the image.