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[Request] Dispersion on translucent materials

It would be nice if we could have a dispersion effect on translucent materials as seen in Knack on PS4. alt text

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asked Mar 11 '14 at 05:28 AM in Everything Else

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ue4-archive ♦♦ STAFF
49.9k 3666 1994 9120

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2 answers: sort voted first

Hi Christian,

Thank you for your request. This would be an excellent feature for cinematics. I have created a feature request for light dispersion and entered it into our database.

Cheers!

Alexander

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answered Mar 11 '14 at 05:28 AM

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ue4-archive ♦♦ STAFF
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Dear Christian,

Refraction

I don't know if you've tried this already,

but for me, Refraction produces the effect you are demoing in the picture

You might want to set your refraction smaller than I do though hee hee

EDIT: if refraction is not what helps you then I dont know what your picture is demonstrating and a video might be required

alt text

Rama

refraction.jpg (279.4 kB)
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answered Mar 11 '14 at 05:28 AM

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ue4-archive ♦♦ STAFF
49.9k 3666 1994 9120

avatar image ue4-archive ♦♦ STAFF Mar 11 '14 at 05:28 AM

Type "glass dispersion" into google and you'll understand what I mean ;]

avatar image ue4-archive ♦♦ STAFF Mar 11 '14 at 05:28 AM

I'm not finding much that is that specific,

You've tried Refraction?

At very high amounts it does what I am seeing in your picture example :)

Rama

avatar image ue4-archive ♦♦ STAFF Mar 11 '14 at 05:28 AM

Yeah I use refraction a lot, but I mean dispersion :]

http://en.wikipedia.org/wiki/Dispersion_%28optics%29

avatar image ue4-archive ♦♦ STAFF Mar 11 '14 at 05:28 AM

The image you posted in you question looks more like combination of refraction and chromatic aberration.

It doesn't have any visible caustic effects, or anything special on it.

avatar image ue4-archive ♦♦ STAFF Mar 11 '14 at 05:28 AM

alt text

refract.jpg (285.1 kB)
avatar image ue4-archive ♦♦ STAFF Mar 11 '14 at 05:28 AM

Please note my refraction amount in this pic is positively huge, and see how it is distorting the mountain skyline.

avatar image ue4-archive ♦♦ STAFF Mar 11 '14 at 05:28 AM +

I tried a refraction value of 100 on a little test glass table piece and it doesn't give me the desired effect but thanks for the effort.

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