Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: AntonCromas on 2022-08-06, 02:17:13

Title: Spot Lights
Post by: AntonCromas on 2022-08-06, 02:17:13
Hello,

Is there a spot light for corona? The directionality option in the lights doesn't do the trick, shadows lack sharpness.

Regards,
Anton
Title: Re: Spot Lights
Post by: burnin on 2022-08-06, 09:01:32
You can use native C4D spotlight.

More on "Chaos Help Center":
- What kind of lights are there? (https://support.chaos.com/hc/en-us/articles/4528304737553-What-kind-of-lights-are-there-)
- Do Cinema 4D lights work with Corona Renderer?  (https://support.chaos.com/hc/en-us/articles/4528321420945-Do-Cinema-4D-lights-work-with-Corona-Renderer-)
Title: Re: Spot Lights
Post by: AntonCromas on 2022-08-06, 17:05:06
Thanks for the reply.

I mean can you really say its supported when its a basic point light with no way to control softness of the shadow.

Seems like there is no way to get a basic photography spotlight like we use at the studio irl during the shoots, which is a huge downside since thats how our photographers add visual detail using gobos.

Only engine that doesnt have a spot light from what I have gathered =( Was just hoping there is a work around because we really like the material look and how softbox lights look.

Regards,
Anton
Title: Re: Spot Lights
Post by: burnin on 2022-08-07, 18:34:19
Using native lights, edge softness is controlled by Inner & Outer angle.  Falloff, Gradient Colored Edge, Rad. Decay, Clipping... all help in defining shadow sharpness like with AR/Physical...
Oh, I see now none of shadows really work.. ?


BTW
To get sharp shadow w/ Corona's Area light, make it really small (just like IRL)   
and for realism sake, best is to model casing/housing & put IES profile inside. This way you can get "perfectly correct" results.
Title: Re: Spot Lights
Post by: Sebastien on 2022-08-18, 11:05:38
Like Burnin said, do a tube and put a small area or object light in it with an IES and you'll get a perfect result
Title: Re: Spot Lights
Post by: Beanzvision on 2022-08-18, 12:38:32
Do you have a reference image you're going for?

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=37595.0;attach=170230;image)