Chaos Corona Forum
Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: garamouni on 2022-06-27, 16:39:35
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Hey guys, im trying to come up with a realistic TV texture (illuminated, decent colors, subtle reflection etc) any tutorial you guys can refer me to or an existing material to start with? would you go at it with just one texture or a light material with a texture and a glass in front etc?
Many thanks
G.
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Generally, it's always good to use a setup closely matching the real thing you're trying to reproduce. It'll certainly help if you use a glass object in front of the plane, this will add realism and take care of correct reflections. For the 'luminous' screen material, I'd go with LightMtl instead of self-illumination, it'll render faster (self-illumination is solved via GI calculations which are slower and noisier, LightMtl will use an optimized illumination model).
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Hi,
Butting in here a bit... Pokoy, you gave me the answer to a lot of LONG render times were I have useddark environments with shop signs lit using illuminated mats rather than light mats. Thank you for clarifying this :-) John
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Attempt to "paint virtual photography" using Corona v8.1.
Display material values adapted for HDRI used: Artist Workshop - Poly Haven (https://polyhaven.com/a/artist_workshop)
with Camera Simple EV @ -2
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Wait, I was referring to a CRT screen, only now realized it's a LCD screen that the OP was after. Sorry for the confusion! In that case, self illumination might be the way to go, still, if you want it to be faster and need it to illuminate the scene, Lightmtl would be faster.
@Johnny - glad I could help.
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The best suggestion will be to always try using a Corona Light material instead.
The rendering speed will be better, the introduced noise will be less, etc.
@pokoy already gave you the best suggestion:
...it's always good to use a setup closely matching the real thing you're trying to reproduce...
Kind regards.
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Thank you @pokoy (for both answers)!
Generally, it's always good to use a setup closely matching the real thing you're trying to reproduce. It'll certainly help if you use a glass object in front of the plane, this will add realism and take care of correct reflections. For the 'luminous' screen material, I'd go with LightMtl instead of self-illumination, it'll render faster (self-illumination is solved via GI calculations which are slower and noisier, LightMtl will use an optimized illumination model).
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Clear! will give it a go now, thanks!
The best suggestion will be to always try using a Corona Light material instead.
The rendering speed will be better, the introduced noise will be less, etc.
@pokoy already gave you the best suggestion:
...it's always good to use a setup closely matching the real thing you're trying to reproduce...
Kind regards.
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Wait, I was referring to a CRT screen
I think this clearly tells how old you are :] For me it's the same - whenever i see similar question, CRT screen always springs to my mind first, eventhough i didn't see such screen in the last decade.
Topic related question - if light material is used with "emit light" being turned off, is this still counts as light material, or as self-illumination in terms of GI calculation?
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:D first colored TV I watched, had colored glass (thin film filter) on front for colors
Also, I absolutely agree, be "predictive" & good luck doing it effortlessly using artistic rendering engine & values - it's a breeze :) (https://www.veed.io/view/040a4753-910a-4283-a423-c20e69ce70ec)& a pleasure, cruising w/ V8 ;) (https://www.veed.io/view/040a4753-910a-4283-a423-c20e69ce70ec)
PS
Had OLED/QLED in mind. That's the easiest now :)
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I'm going to suggest this one ;)
https://www.corona-materials.de/en/material-library/special-effects/crt-screen/246
(https://www.corona-materials.de/downloads/preview/46b6eb1abe9eded6efdeae3218ad1fde.jpg)
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I'm going to suggest this one ;)
https://www.corona-materials.de/en/material-library/special-effects/crt-screen/246
(https://www.corona-materials.de/downloads/preview/46b6eb1abe9eded6efdeae3218ad1fde.jpg)
Thats a really cool texture.
Whenever I have had to emulate a screen in the past I've used a similatr trick where I've just overlayed a simple RGB pattern over the top of the image and set it to 20% soft light.