Creating fire..with problems (Updated)

Hey guys,

I’m trying to make fire in UE4 but the colours seem to be really blown out when I add the colour over life in cascade. Any suggestions on how to lower it’s intensity so I can bring out more details from my SubUvs. Provided my material, texture below.

You may either need to lower your overall value in Cascade, or adjust the default post process. With one of Unreal’s updates, they changed how emissive works, and anything over 1.0 just blows everything out now :confused: we had to adjust a ton of our particle systems to account for that.

Alternatively, you could adjust the values of your texture, and then control its contrast in your material instance or in Cascade

Thanks for your speedy response Travis., i’ll take a look. Cheers :slight_smile:

No prob! If that doesn’t get the results you’re looking for, just let me know and we’ll figure something out :slight_smile:

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Manged to tone it down a little by diving the particle colour by a constant. Got rid of the overbearing brightness for now.

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I’m currently having an issue with regards to the particle light now. When applying it in cascade it is not visible in the main viewport. However when I go to render an image sequence through the sequencer it will suddenly appear. Possibly there is a check box I have left unchecked but i’ve been unable to find a solution to this. Does anyone have any suggestions?

Thanks :slight_smile:

Do you have ‘Inverse Square Falloff’ checked in your light?

Yeah, everything seems to be in order there.

The inverse square falloff will drastically decrease the brightness of your light. Your Brightness Over Life will probably be in the thousands, and you may need to boost your Color Scale Over Life as well, since I’m pretty sure you had to tone that down in your particle color to get rid of the nasty blown-out emissive.

Inverse Square Falloff gives a very nice fade from the edge of your light to its core, but it does it exponentially (I believe) so you get a huge reduction in the area it affects, and the overall brightness of the light

I moved the project file over to another machine and it started working. Both machines are running the same version of UE4. I’m wondering if it’s a technical limitation of my main PC. It is 7 years old and second hand so it’s really lacking in the graphics and RAM department.