ANDREA wrote:Chris, IMHO it looks very promising, but exists the possibility to reduce the evidence of single particles, I mean making them very smaller?chris wrote:...Here's yet another version of Tvashtar's plume, this time with a particle system instead of a cmod file:
This work is experimental, and will not be ready for Celestia 1.6.0. In fact, there needs to be some discussion about whether particle systems belong in Celestia at all. The videos in this thread are demonstrations of what's possible. Used carefully, some phenomena can be simulated realistically with particle systems; abused, they can turn the Solar System into a disco --Chris
Or this would need a too big amount of memory and/or graphycal power?
Memory isn't a problem, because the particles are all generated dynamically during each frame. However, using a lot more particles will make the CPU work harder, so you should strive to get the effect you want with the lower possible particle count. In the case of the Cassini video, it should be possible to simply use a 'softer' texture to nearly eliminate all traces of individual particles.
In the videos, the Io volcano has 3000 particles, the Cassini main engine thrust uses 1000 particles (500 per engine), and the liftoff smoke is only 300 particles.