[santobr]

Hello, friends.
Thanks to all for your nice words and help.

The IL-2's engine is an old engine and the original project doesn't have an exclusive function for big explosions.
So we need to make some choices.
There are limitations in the number of particles, the color, the velocity and so on.
Every smoke particle starts where the bomb hits the ground and we need imagination to simulate as a real explosion.
With a bigger circle of ground smoke, the smokes tend to be more sparce and unreal.
The fireball is very real as the pictures posted.
We have only two colors, the start and the end, and only two sizes for each particles system.
I did try to simulate wind effect, but we need to simulate more than ten minutes in 135 seconds and I think it looks good.
I'm trying to reduce the number of sprites and change to a color more gray, as you guys suggested.
The big particles, increases the lags, and the small ones, increases the number of particles to avoid sparce blobs.

I can't answer more quick because I have difficulty with English language.
Sorry for that. :wink:

Take a look at this videos:
1955 Nevada test. Wind effect at the final minutes.
http://www.youtube.com/watch?v=94ZWE8qx ... re=related

Fat Man:
http://www.youtube.com/watch?v=gQqBgbxtR-g

1945 - 1951 Vintage Atomic Bomb Film:
http://www.youtube.com/watch?v=MWIJVM9kdek&feature=fvsr

Thanks to all. :wink: