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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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Colorjitter controls c4d's own particle colour issues.

10 REPLIES 10
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Message 1 of 11
66175545
198 Views, 10 Replies

Colorjitter controls c4d's own particle colour issues.

Can you please tell me if Colorjitter can control the particles that come with c4d and influence it to produce random colours?01.jpg

10 REPLIES 10
Message 2 of 11
lee_griggs
in reply to: 66175545

The utility shader might work better.

Lee Griggs
Arnold rendering specialist
AUTODESK
Message 3 of 11
66175545
in reply to: lee_griggs

Thank you for your reply, which is very timely and effective. I would like to continue to ask a question: while using the utility node to achieve random particle colours, I would like to continue to further fine-tune, for example: to adjust the hue, saturation and intensity of the random particle colours, how can I further optimize at this time?01.jpg02.jpg

Message 4 of 11
lee_griggs
in reply to: 66175545

You can add a color_correct shader before the utility shader. This tutorial might also help.

Lee Griggs
Arnold rendering specialist
AUTODESK
Message 5 of 11
66175545
in reply to: lee_griggs

Thanks for replying, but I'd also like more flexible control, such as a jitter node like Redshift's that has the flexibility to read and control particle colours. I hope Arnold has considered this aspect as well.

Message 6 of 11
lee_griggs
in reply to: 66175545

I did a test with color_jitter here that seems to work.

 

lee_griggs_0-1715596228049.png

 

Lee Griggs
Arnold rendering specialist
AUTODESK
Message 7 of 11
peter_horvath
in reply to: 66175545

I believe the color jitter should work fine on particles. How to use it, depends on the instancing mode. If you generate the default spheres or quads, you need to set the parameters under the Face group (as particles exported as points within a single object). If you generate custom shape instances, then you have to set the parameters under the object group (as each instance is a separate object).


// Peter Horvath
// C4DtoA developer
Message 8 of 11
66175545
in reply to: peter_horvath

How can I set the default particle emitter in c4d and get the desired result? I am a beginner in Arnold and need your help.01.jpg

Message 9 of 11
66175545
in reply to: lee_griggs

Ok, thanks. 

Message 10 of 11
peter_horvath
in reply to: 66175545


@66175545 wrote:

How can I set the default particle emitter in c4d and get the desired result? I am a beginner in Arnold and need your help.


Set the Gain/Hue/Saturation under the Object group in color jitter, like this:

peter_horvath_0-1715688762699.png

 


// Peter Horvath
// C4DtoA developer
Message 11 of 11
66175545
in reply to: peter_horvath

Thank you very much for your careful response.

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