Sci fi scene

[Dune]

Neither am I, but just curious. In post you can also blur objects, you can't do that directly.

[Hannes]

Yes. Object motion blur for example.

[WAS]

Would there even be atmosphere to have any heat effect? It should just be glowing ions really visible I'd think? Similar to watching rocket engines in space. I always thought the heat effect was caused by rapidly expanding/contracting atmosphere due to heat and gasses consumed by fire.

[Hannes]

I think, the glowing ions are something different. The mentioned heat blur is as far as I know a similar effect (or the same?) like the flickering air you can see in a hot desert close to the horizon. Hot air. Which is of course not existing outside of the atmosphere. So, not realistic in my case, but cool.

[DocCharly65]

Cool project, Hannes!

The heat effect in the last version looks great.
In the last months I often checked how exhausts look in Sifi movies. Very often they just use a flickering light(-source) for space views. But I like that detail of heat effect.

[Dune]

Well, the air/spacecraft could easily fly in an atmosphere. I like it very much anyway!

Here's a rude experiment with a smoothing filter (and a local cloud for exhaust). I agree, post blur is better

[Hannes]

Not bad at all. But I guess I'd rather go for a slightly smooth distortion, than for just smoothing. But I like the idea.

[WAS]

Too bad we could set the texture space for any shader. Something like this could work from a distance: https://planetside.co.uk/forums/index.php/topic,29588.msg289948.html#msg289948