Good morning everyone,

I'm literally ready to pay who will be able to solve my problem.

here is the original file of the explosion. https://drive.google.com/file/d/1UBb2ctIG_OQ5qh7bpMSTUFcNI_E1LTCq/view?usp=sharing

Blender 2.8 Cycles

**In the screenshot here you can see, literally too many fireflies**


Everytime I use fire / explosion I cant get those fireflies away in the rendering. Already followed all tutorials/discussions/youtubevideos about deleting fireflies in rendering. Already tried everything without finding a solution (clamp, light size, hundreds of samples, caustics, filter glossy, glossy bounces, multiple importance).

The denoiser helps but it really makes a lot of damage to my scene, so I would want to try avoid it for now, and for sure this scene can get a lot better before I will put the denoiser as a last touch. But for sure for now there is still too much fireflies/dots!

Please open the original file and help me find a solution !! It does that everytime I work with fire/explosions. With smokes I can fix the problem, but when it comes to fire here they appear without solutions!

Thank you very much for helping


2 Answers 2


The only way to do this without denoising is increasing the number of samples up to about 2500. It takes a long time to render, but your image stays crisp.

  • $\begingroup$ please try to do it using my .blend file? Because I really have the suspect that those fireflies are not the ones that goes away when you use crazy amount of samples, but I dont know .. Thanks for your reply in any case !! - [Ah, I dont have modern GTX graphic cards or similar that allows me to use 2500 samples in an explosion scene, would take 14 days for 1 frame, this is the reason why I ask you to try that please! xD ] $\endgroup$ Commented Apr 20, 2020 at 19:07

Use embergen to create flip book, composite in later. Fake the lighting from explosion in composite as well.


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