Chaos Corona Forum
Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: cecofuli on 2016-11-30, 22:27:20
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As in the title:
if we use a CoronaMtl or CoronaLightMtl with 5500K selected with the Color picker we will have a different render than the CoronaLight 5500K numeric value: why?
(http://www.francescolegrenzi.com/Temp/Corona/0118_Kelvin.jpg)
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Hi. Have you tried unchecking the sRGB?
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Yes.
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probably because self illumination and light emission is a different thing. try it both in coronalight
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(*) If I use inside the CoronaLightMtl a CoronaColor map with a numerical 5500K input, everything is ok: Shader and CoronaLight have the same color.
(*) In the CoronaLight: if I use the "Direct input" with 5500K selected with the Color picker and "Kelvin Temp" 5500K input, I have the same problem
In attachment the files.
I think that there is a problem inside the Color Picker slider.
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I can confirm:
-5500 in the color picker is 255 229 194 (when I checked it once it was 255 230 194 - wtf?)
-5500 in light or CoronaColor is 255 237 224 (I also got +-1 deviation here for G and B)
Attaching another scene demonstrating this.
Update: I think the problem is rather with the Kelvin temp spinners, since 6500K is slightly blueish there, while it's perfectly neutral when using the picker.
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I noticed this too from the very begining...
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As in the title:
if we use a CoronaMtl or CoronaLightMtl with 5500K selected with the Color picker we will have a different render than the CoronaLight 5500K numeric value: why?
(http://www.francescolegrenzi.com/Temp/Corona/118_Kelvin.jpg)
hi, do you still have the image? can you reupload it?
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fixed