LIGHTS IN C4D

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SCHMUMS
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LIGHTS IN C4D

Post by SCHMUMS » Tue Nov 09, 2010 11:15 pm

Hello everyone,
I need help. I have a simple scene with a few lights + on a plan to lead the side in dark areas. once under Indigo impossible to manage the intensity of the lights, everything is frozen. I joint the c4d scene so you can see what is wrong. Thank you in advance.
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Re: LIGHTS IN C4D

Post by Zom-B » Wed Nov 10, 2010 12:00 am

Hey Schmums,

regarding our scenes there are a few points:

1) You only have a single Indigo material applied! Cindigo converts on the fly from C4D mats to Indigo,
but for advanced control and better understanding try using Indigo materials alone.

2)Indigo light system is material based. You define a material that emits light and put
it on a mesh to light the scene.

3) Don't use the Light Tag:)

4) your big plane on the right has normals facing wrong way. Indigo light get only emitted into normal direction!
Also try to keep your emitter lights as low poly as possible and make the size reasonable. In your case there are a lot of ray firing out in the ether, still using CPU power to do so!


I added a modified scene for you to see what I changed.
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SCHMUMS
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Re: LIGHTS IN C4D

Post by SCHMUMS » Wed Nov 10, 2010 12:23 am

Fused thank you for your reactivity!
Watching the scene you've changed, I better understand my mistake.
And now it works.

However, one last question ... why not be able to tag lights and do not add to the list in the parameters provided in c4d, which seemed logical at the outset.
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Re: LIGHTS IN C4D

Post by zeitmeister » Wed Nov 10, 2010 12:31 am

Zom-B,
now you should seriously ask Glare for salary for developing Cindigo! :mrgreen:
Cheers, David



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Indigo 4.4.15 | Indigo for C4D 4.4.13.1 | C4D R23 | Mac OS X 10.13.6 | Windows 10 Professional x64

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Re: LIGHTS IN C4D

Post by Zom-B » Wed Nov 10, 2010 12:39 am

Converting C4D light works at some basic points... but Cindigo converts the lights to meshlights and sets up a "physical plausible" light material on it. All the fancy and biased parameters for light C4D uses aren't possible in Indigo (and other unbiased render engines!).

So there is no point to use C4D lights for Indigo based lightning, because only a few things could be taken over... way to complicated... bad orientation what works, what not... etc.
Get known to material based lightning, its best to understand and master Indigo!

He he Zeitmeister, I just a smart-ass... more the type of "Captain Hindsight" then anything else ;)
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Re: LIGHTS IN C4D

Post by SCHMUMS » Wed Nov 10, 2010 12:49 am

ok!
but then what is the tag light, and the "light layers names" parameters in rendering c4d?
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Re: LIGHTS IN C4D

Post by fused » Wed Nov 10, 2010 1:00 am

Thanks for helping out Zom-B :)

[chitchat}
Zom-B wrote:more the type of "Captain Hindsight" then anything else ;)
lol!

I was quite surprised about who Mysterion is :O

[/chitchat}

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Re: LIGHTS IN C4D

Post by pixie » Wed Nov 10, 2010 1:29 am

Zom-B wrote:3) Don't use the Light Tag:)
I use the light tag with much fuss. it's great to get a first glance on the final image. When I add a light it have the default set so that indigo tag is applied, then i set the layer for each light and I'm set to go. Having no materials to search for in the material editor is another point in a cluttered scene.

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Re: LIGHTS IN C4D

Post by Zom-B » Wed Nov 10, 2010 1:56 am

SCHMUMS wrote:ok!
but then what is the tag light, and the "light layers names" parameters in rendering c4d?
It seems like the short Cindigo manual would be a great read for you :)
http://www.indigorenderer.com/sites/def ... Manual.pdf

With Light Layers you can divide each lightmaterial to be rendered in a different Layer (see in Indigo GUI > Light Layers")
By this you have control over light during rendering!
But be aware of higher RAM usage too...

P.S. just watched SP yesterday... really awesome.
The Mysterion situation was really creepy to see after all this years... wow!!
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Re: LIGHTS IN C4D And USE IES

Post by SCHMUMS » Tue Jul 26, 2011 12:08 am

I want to use data IES but I don't know what settings to change.
Should I use the tab "+ IES Lights Scalling" of scattering material? or use the scattering parameters of the material. If so what settings do I have to use (Use Emmis Scale, Value ...)
I did a test on the example, but I can not raise or lower the intensity of light IES.
Always in modifying materials is what I have to specify a spectrum type (RGB, ... Blackbody)
also some "one can tell me the difference between these different types?

merci d'avance
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Re: LIGHTS IN C4D And USE IES

Post by ahmad » Thu Aug 11, 2011 9:25 am

SCHMUMS wrote: Always in modifying materials is what I have to specify a spectrum type (RGB, ... Blackbody)
also some "one can tell me the difference between these different types?

merci d'avance
RGB: Light based on colour and brightness.
Uniform: A white light with intensity based on value given.
Blackbody: Light is based on the temperature. Measured in Kelvin.
Peak: Define the limits of the wavelength.
Real Tabulated: Allows nearly arbitrary spectra to be defined. The spectrum
value is given at regular wavelength intervals, and linear interpolation is used
to sample at intermediate wavelengths.

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Re: LIGHTS IN C4D And USE IES

Post by ahmad » Thu Aug 11, 2011 9:33 am

SCHMUMS wrote:I want to use data IES but I don't know what settings to change.
Should I use the tab "+ IES Lights Scalling" of scattering material? or use the scattering parameters of the material. If so what settings do I have to use (Use Emmis Scale, Value ...)
I did a test on the example, but I can not raise or lower the intensity of light IES.

merci d'avance
There is some hosted IES profiles available from:
http://www.indigorenderer.com/dist/ies-profiles.zip

btw , these from manual :)

thankees

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