How does fog work?

[Kevin]

I was checking out the AlphaCentury zscript the last couple of days, and I haven't been able to get good results with the fog contols. Certainly nothing like what I saw in the script. So what's the trick?

And when you paint a terrain like this - in color - how do you do it? Do you just paint dark colors for the low areas and light colors for the higher areas?

Thanks

Kevin

[Ron Harris]

I dont know if you have tried this or not

fog tips (http://www.pixolator.com/zbc-bin/ultimatebb.cgi?ubb=get_topic&f=1&t=001377)

[Muvlo]

And about painting it in color, yes, just make it darker or lighter. Keep in mind that you can also make it more or less saturated (more or less color) or use the hue. Depending on which one you want ZBrush to use, click "Int", "Hue", or "Sat" when you get to the masking part. Good luck! :)

[aurick]

When it comes to actually painting the terrain, you can use any colors that you want to. The MRGBZGrabber will make two separate captures. The depth grab will go into the Alpha palette. It's black and white, regardless of the colors that you've used for your work so far, because it is an alpha channel based on the depths of the objects on the canvas. This is what you apply to the plane to control the deformations.

The second grab is of the colors from the canvas, and it lands in the Texture palette. You can apply this to the terrain tool and it will not affect the deformations at all.

So the colors that you paint your terrain with should be based on the look that you are trying to create for your image. They can be natural, polka-dot, or anything in between!

[WingedOne]

As far as fog goes, when selecting the depth values it's usually best for "depth 1" to click and drag in that value box and drag out to the canvas which has your closest object/point in the scene and for "depth 2" to do the same thing except for the farthest object/point in the scene.

Of course, other interesting effects can be done using the fog alpha and fog texture buttons.

[Kevin]

Thanks for the help. I never thought of dragging depth1 and 2 out over the image and dropping it over an area. I've done this when setting the color, etc. All I can say is WOW!

I think maybe that was my problem. I didn't know how to tell it where to start and end the fog in the image.

With the colors I tried, I didn't get enough depth. Maybe I need to use a higher off set.
Kevin