[panikajo]

The name of the object (env_smokestack)
At me now such parameters but, the smoke not dense turns out.
And if you go into the smoke and look at the floor then the floor will be clearly visible.

DispatchKeyValue(entity, "BaseSpread", "30"); 
    DispatchKeyValue(entity, "SpreadSpeed", "10");
    DispatchKeyValue(entity, "Speed", "50");
    DispatchKeyValue(entity, "StartSize", "160");
    DispatchKeyValue(entity, "EndSize", "160");
    DispatchKeyValue(entity, "Rate", "80");
    DispatchKeyValue(entity, "JetLength", "150");
    DispatchKeyValue(entity, "Twist", "1");
    char buffer[12];
    Format(buffer, sizeof(buffer), "%i %i %i", GetRandomInt(0, 255), GetRandomInt(0, 255), GetRandomInt(0, 255));
    DispatchKeyValue(entity, "RenderColor", buffer);
    DispatchKeyValue(entity, "RenderAmt", "255");
    DispatchKeyValue(entity, "SmokeMaterial", "particle/particle_smokegrenade1.vmt");