How to add smoke to a projectile?

[Duke John]

I added smoke to a projectile with version 1.1. But with 1.2 I can no longer use the same edits. I did add smoke to artillery by adding an effect (note not a end_effect) in descr_projectile_new.txt:

projectile boulder

effect		boulder_explosion_set
end_effect		boulder_explosion_set
damage			70
damage_to_troops 8
radius			0.3
mass			0.1
area			2.0
accuracy_vs_units		0.09
accuracy_vs_buildings	0.0625
min_angle		0
max_angle		70
velocity		60
bounce			0.5 0.6 0.5 0.4
display			aimed
effect_only

In descr_arrow_trail_effect I changed the boulder_explosion_set so that it contained only 1 effect:

effect_set boulder_explosion_set
{
	lod 1000
	{
		;boulder_explosion_01
		;boulder_explosion_02
		;boulder_dust_explosion
		boulder_dust_explosion2
	}
}

Then the effect itself. I edited so it only contained one debris model. And the parameters are changed so that the effect does not last long.

effect boulder_dust_explosion2
{
	type explosion
	{
	; dust explode
		model 				models_effects/explosion_dust2.cas
		anim_time			0.5
		max_scale   			0.1
		max_particle_scale 		4
		scale_time_bias			.9
		alpha_time_bias			0.6

		; debris
        debris_model                             models_effects/explosion_dust2.cas
        debris_num_particles     1
        debris_lifetime_range    2.2, 15
        debris_emit_angle        80               ; degrees
        debris_time_bias         0.9
        debris_velocity_range    1.01, 1.05
        debris_scale_range       6.4, 7.6
	}
}

The above works for artillery, but when applied to infantry it shows the smoke for a fraction of a second before the game CTDs. This wasn't the case in 1.1, so I guess the code was changed concerning projectiles (something to do with the flaming arrows?).

So does anyone know how to add smoke to infantry, or could someone from CA shed a light on this?

It would be perfect if we could add a smoke that stays floating in the air around the model before disappearing. But the first part of the effect (dust explode) is attached to the projectile so it moves forward very fast, while the second effect is affected by gravity so it comes down, while it should slowly drift upwards. Jerome?

Thanks,
Rob