Hey All
Is there any Methods you can use to get a sand effect, So you could have a bit of sand, say next to a lake?
Thanks
Zionner
If you mean to have the grainy sand texture you can use fake rocks with very very small scale. It also sometimes helps to increase the stone tallness. The attached image, for example, used fake stones to get the sandy, grainy look.
Yes!, Thats it, Thanks :D
Could you give me the settings, as i dont seem to be getting it right
Here is the clip file. You will probably have to alter some settings to make it work with you camera angle and resolution.
Thanks :) I Wasnt Getting it Right, But its fine now :D
Thanks again for your Help!
Zionner
Ok, Theres one thing i dont Get..I've used your settings in a test render.. (just a plain with these fake rocks)..but they come out nothing like your ones.....They have all been configured exactly like your ones, but still aint working correctly??
In what way do they not work (i.e. displacement)? To get the rocks to look right you will need GI surface detail turned on and render quality of probably 0.9 to 1. You may have already done this. Also you might need to move the camera closer to or farther away from the ground so the scale looks correct -- either that or decrease/increase the stone scale to fit your scene's specific needs.
If it requires GI Surface Detail you're going to be looking at some veeery long render times.
It's actually fairly easy to create a sand-like texture just using very small displacement in a surface layer. Create a new Surface Layer, go to the Node Network view and plug your Fractal Breakup into the Displacement Function input of your surface layer (so it is connected to both this and the Breakup Shader input). Now get down close to the surface - you should already see fairly small scale and rough displacement going on.
The default scale is set to 1 meter for the Fractal Breakup shader, so you'll want to bring that down for "sand". Try setting Feature Scale to 0.1, Lead-in scale to 10, and smallest scale to 0.01. You will also want to reduce displacement height so turn down the Displacement Multiplier in the Displacement tab of your Surface Layer to 0.1 or 0.05. With those settings you will get a fairly decent rough-looking small-scale surface, but you'll probably need to experiment more to get a better "sandy" look. I would disable the warping in the noise shader, for example, and I might reduce variation and clumping as well.
My final settings for scale and displacement were:
Displacement Multiplier: 0.025
Feature Scale: 0.02
Lead-in Scale: 10
Smallest Scale: 0.005 (reducing smallest scale much more will trigger an error in the renderer where the surface renders black)
This produced pretty good sand-like texturing from an average human standing height above the terrain (2m), however it won't be very distinct from greater distances. It's realistic, since you can't really see the roughness of sand from far away anyway, but if you want to force the rough look of sand grains from a greater distance you can just adjust the scales and displacement.
There's a clip file attached.
- Oshyan
Thanks for The Info Oshyan, I Started Rendering the Sand though your way nvseal but it was taking too long, Im just trying out your settings now Oshyan and i'll come back soon with the result
Thanks both of you for the info
Zionner
This was a quick Default Setting render to test your settings...Any way you think i can improve on it?
(http://img525.imageshack.us/img525/6615/sandna9.png)
zionner - a different color would be nice...browner.
I'll change it in a while, im just rendering one where that colour should fit in well...Its Next to a large lake...Should be nice (Quite Low Detail though)
I think it needs a higher render quality for us to really see the grain.
Increase the displacement multiplier to give a stronger visibility to the "sand". It will be exaggerated, but it should be closer to the look you want.
- Oshyan
Changed..This Next Picture will look Great!!
the sand didnt turn out quite right (i think i over done the displacement), but heres the render
(http://img217.imageshack.us/img217/8302/sandtestqk1.png)
I like this pretty well overall.
Some critiques - the sand seems too orange to me. Is it my monitor? Another thing - while I'm certain you did not do any "cheating" (by using other programs to touch this up), the shoreline looks fake. I don't know why, but it needs...oh, I know. It needs some foam.
Hope you know I'm only being extra picky, since I think this is on its way to something very cool.
Here is a quick sand demo I made quickly. The camera is 2 meters above but it looks pretty good from 1 meter as well.
Thanks, Im Updating My Sand Now...+ No i didnt touch it up as i dont have photoshop or anything like that...
I'll Post the Render on here once its done..(it will be rendered in default settings, as i always do until i have finished the picture off
Ok, Still isnt quite there...but an improvement :)
(http://www.imagehosting.com/out.php/t792981_SandTest.bmp.jpg) (http://www.imagehosting.com/out.php/i792981_SandTest.bmp)