/AuroraDocs/AAFunctions/aaSetCloudDensity.lsl

 1default
 2{
 3    state_entry()
 4    {
 5        //Set the cloud density to 1
 6        aaSetCloudDensity(1.0);
 7    } 
 8    touch_start(integer number)
 9    {
10        //Set the cloud density to half
11        aaSetCloudDensity(0.5); 
12    }
13}