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| Rain; What is the most efficent way? | |
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| Tweet Topic Started: Sep 30 2007, 11:40 AM (574 Views) | |
| Linkin | Sep 30 2007, 11:40 AM Post #1 |
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Forum God
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Yea.. what would be the most efficent way to do rain in a game? i could do it with a partical emmiter, ive also heard it could be done with a shader? My game is set in the vietnamise jungle so there will be lots of rain. Thanks -DS |
![]() Want something done in Photoshop, make a request Here Formerly known as DS-Development. | |
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| Despellanion | Sep 30 2007, 11:56 AM Post #2 |
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Forum God
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The most efficient way would be to create a object with a couple of hundred particle rain drops and make the object follow the player so that the rain is at the player's location all the time without the need of filling the whole room with rain particles which would be pretty performance costly. |
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| $pecter | Sep 30 2007, 12:16 PM Post #3 |
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Elite Member
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I don't think you understand how a shader works, you could just draw raindrops in front of the view, but I don't think this is what you want. However, the particle method is much more doable. I was just working on rain the other day and came up with this CREATE
STEP
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| LaserLemon | Sep 30 2007, 12:59 PM Post #4 |
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Sir
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Okay, I see someone alse has already replied, but here's the code I compiled, you can pick ur favourite
CREATE
STEP
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| harkathmaker | Oct 1 2007, 01:18 AM Post #5 |
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Persistent Enquirer
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Can't particles only be rectangular in shape? Raindrops are usually kinda like streaks... is there a way to achieve this?
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| skarik | Oct 1 2007, 01:22 AM Post #6 |
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kitten eating scum
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![]() ^RECTANGULAR!
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| harkathmaker | Oct 1 2007, 01:23 AM Post #7 |
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Persistent Enquirer
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?!?!?!?!
Particle? |
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| harkathmaker | Oct 1 2007, 01:29 AM Post #8 |
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Persistent Enquirer
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Gah! I meant square... was that picture a particle though? |
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| $pecter | Oct 1 2007, 02:42 AM Post #9 |
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Elite Member
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png with alpha
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| zelda4evr | Oct 1 2007, 05:44 AM Post #10 |
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Forum God
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how do you make pngs have alpha? |
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| Zedman3d | Oct 1 2007, 06:36 AM Post #11 |
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Forum God
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This topic is funny. |
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| $pecter | Oct 1 2007, 07:18 AM Post #12 |
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Elite Member
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So are jokes, but on topic... zelda4evr, to make an png with alpha you need Photoshop, The GIMP or some similar program. A simple method to make these transparent pngs is to: 1. Make your image with white areas where you want to be transparent (the whiter the more transparent, black is solid) 2. Duplicate the image into a new channel for the first layer and invert it 3. Make all areas you don't want to be transparent black (in the mask) 3. Save as png with transparency |
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| Linkin | Oct 1 2007, 08:36 AM Post #13 |
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Forum God
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Ok thanks guys, ill go with the partical emmiter |
![]() Want something done in Photoshop, make a request Here Formerly known as DS-Development. | |
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| Linkin | Oct 1 2007, 08:51 AM Post #14 |
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Forum God
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Is there any way to make the particals only rotate around there Y axis? |
![]() Want something done in Photoshop, make a request Here Formerly known as DS-Development. | |
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| $pecter | Oct 1 2007, 10:19 AM Post #15 |
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Elite Member
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I don't think particles can rotate, from what I can see they're just a billboard that always faces you. |
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