View Full Version : Rain tips

05-03-2005, 05:44 AM
Finishing up my first attempt at a painting and considering adding rain as a final touch. Given though that it would be animated (and presumably done either in 3d or compositing) in production, is it a pointless exercise to add some to my painting?

If anyone thinks there is any value in adding some, can you offer any tips to make it look realistic? There are some pretty quick ways to get results in photoshop but how to get away from the uniform look across the whole thing and have a little bit of variation - particularly in depth?

06-27-2005, 12:34 PM
I probably would add rain, if it were my picture. However, if you want to add rain for a still shot, and you're looking for that extra depth, you can try following this link (http://gallery.artofgregmartin.com/tuts_arts/making_a_star_field.html#tut), and stopping when you have created the "basic starfield". This way you get the starfield with more depth, but without the color tint, lens flares, etc. Then motio blur that so that it streaks down, and you have rain with some depth to it.

I just thought of this, haven't tried it, so I can't vouch for how well it works, but you can try if you want. Hope it helps. :)

06-27-2005, 09:36 PM
try using noise and vertical motion blur on a screen layer in your compositing app for the background rain.

as for the foreground... particles unless you can get practial rain elements maybe a shower head in front of a black background?
particles are hard to get the bounce spashing and ripple stuff to look right. Its fun to experiment though.


06-27-2005, 09:39 PM
Oh Animated texture maps on 2d cards might look good too if you layer em' up. hmmmm now I kinda wanna try it.


06-28-2005, 05:37 AM
i think the most commonly used approach is some kind of noise with motion blur on it - but i also think it's a very bad approach that looks very little like the thing you're trying to achieve.

i haven't really done much rain in any of my paintings, but tbh i think it's a lot more about the environment - wet surfaces, overcast lighting, water dripping off of stuff, drops hitting the watery ground creating concentric circles - all that kinda stuff.

a few googled examples of rain:
http://www.valemount.com/trailsandattra ... valley.jpg (http://www.valemount.com/trailsandattractions/images/rain%20in%20valley.jpg)
http://www.retstak.org/images/anderson% ... 20rain.jpg (http://www.retstak.org/images/anderson%20exit%20in%20the%20rain.jpg)
http://www.arrakeen.ch/thai4/196%20%20r ... i%20Et.JPG (http://www.arrakeen.ch/thai4/196%20%20rain%20over%20Roi%20Et.JPG)
http://www.ontarioweather.com/specials/ ... 20rain.jpg (http://www.ontarioweather.com/specials/stormchasing/1999/video/intense%20rain.jpg)