albee01 Posted February 11, 2006 Share Posted February 11, 2006 I'm working on a fire extinguisher model to put out some text I've set on fire. I'm at the spray part of it and am not sure how to handle it. I was thinking about using a particle system to generate the spray on the end of the nozzle. I want the fire extinguisher to be able to be "turned on" though so I need the spray to be off and later on. My other thought is to use a small circular model placed in the end of the hose to generate the spray from. I can put this in place or remove it any time I want. Is there a way I could group this with the end of the nozzle so I don't have to consantly position them individually? ie if I move the nozzle the spray model should follow along with it. Also, any thoughts on the particle settings that might work best would be appreciated. I'm leaning toward filling the whole screen with particle spray for a few moments and swapping around a few other models before the spray fades back out. Thanks! Quote Link to comment Share on other sites More sharing options...
ddustin Posted February 11, 2006 Share Posted February 11, 2006 Make an emitter shaped like half an egg, and place this inside the nozzle of your extinguisher with the open end facing out. Make sure it is assigned to the same bones as the nozzle will be using. You can make the emitter invisible if you want too, and make sure the normals are facing in to the cone. Apply your sprite emitter material to the cone. You can control the spray pattern by reducing the output size. David Quote Link to comment Share on other sites More sharing options...
albee01 Posted February 11, 2006 Author Share Posted February 11, 2006 Ok, so how do I disable the spray until I need it? I can't find an active setting to disable the particle emitter regardless of whether the group the emitter is attached to is visible. Using v12.0q Quote Link to comment Share on other sites More sharing options...
ddustin Posted February 11, 2006 Share Posted February 11, 2006 Ok, so how do I disable the spray until I need it? I can't find an active setting to disable the particle emitter regardless of whether the group the emitter is attached to is visible. Using v12.0q Albee, Once you apply your emitter material, you'll be able to see it in the chor portion of the project work space. (you will have to click the show more drivers thing that has a red X through it). Drill down through the items in the more drivers area properties thing and locate the (I'm assuming you would create a group in your model for the emitter) emitter group. You should see the material properties there. At the begining of the animation, turn the rate of emittion to zero (make sure the animate button is on). At the point you want the spray to start, set the emittion to %100 or whatever give you the desired results. Also make sure you have particles/hair enabled in the options for AM or you won't see anything. In dealing with particles you can scroll forward in the time line easy enough, but backwards takse a long time for each frame. Hope this helps. David Quote Link to comment Share on other sites More sharing options...
johnl3d Posted February 12, 2006 Share Posted February 12, 2006 there os a nice extinguisher here http://www.hash.com/forums/index.php?showtopic=11873&hl=fire and examples of spray http://www.hash.com/forums/index.php?showtopic=11901&hl= Quote Link to comment Share on other sites More sharing options...
johnl3d Posted February 12, 2006 Share Posted February 12, 2006 its a great model [attachmentid=14362] by the way there is some great 2d stuff at http://www.renderosity.com/ the background and butterfly were from there v13 works well with sprites exbut.mov Quote Link to comment Share on other sites More sharing options...
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