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| [[Category: Developer Issues and Workarounds]]
| | I have a problem. I searched all over the net without result:( |
| | | When u open hammer u got 4 screens. 1 in 3D and 3 in 2D. First it was normal but now it looks like this.[[http://users.telenet.be/downloadarea/hammer.jpg]] plz help |
| A [[func_precipitation]] can be very effective for your map's atmosphere. However, there are some glitches that can cause your map to lock up and crash, or at the least run slowly.
| | send reply here or to vancaeneghempieter@hotmail.com |
| | | thx |
| ==Major Glitches==
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| First, if you have rain and water in the same map, make sure they are positioned so that the rain does not go into the water. This has not been verified as a crash-causing glitch, but by preventing this, you can avoid more serious glitches.
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| Second, make sure your rain stays within your map. Rain and snow fall some ways below the end of your [[func_precipitation]], and as such could fall out of your map. This has been noted as causing a map lock-up, and does not create a compile glitch. So, it is worth checking if you have precipitation in your map.
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| Thirdly, if the precipitation is too dense, causing more then 32000 vertices visible at once, it will cause a fatal crash. Dense precipitation is possible, but in sparsely populated areas.
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| ==Minor Glitches==
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| Sometimes, when a [[func_precipitation]] is next to a thin enough wall, the rain or snow will fall through the wall and into your building. Since [[func_precipitation]] is a cosmetic entity, this has no effect in gameplay.
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| The density keyvalue is based on the volume of the individual [[func_precipitation]]. Because of this, having several [[func_precipitation]]s of varying sizes with the same densities can create a varying rain intensity. This is not a glitch, but can be difficult to alter exactly. In this case, a good guess will have to do. You can, of course, calculate the volumes of the individual [[func_precipitation]]s, by multiplying length, height and depth of each and compare the results.
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| :Tip: You can also put multiple func_precipirarion brushes in the same area.
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| ''A third party tutorial on creating/controlling these, with example vmf's can be found here'': [http://www.akilling.org/akg/tutorials/wisePrecip.asp]
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![[1]](http://users.telenet.be/downloadarea/hammer.jpg){kind=link}