Procedural tarmac

[tricky]

Anyone come across a procedural tarmac type material anywhere? We have a huge area to do from various heights. Bitmaps are very difficult to get to work over very large areas - even when they are made tileable, they still look tiled when you see a 20x20m area of them from above.

[YoyoBoy]

Use a bitmap for tarmac that is close to the camera and use a distance falloff to fade to your best attempt at doing it with something like the Bercon Noise map.

[tricky]

Interesting idea...

[jacksc02]

for large areas I use 2 bitmaps in a noise and that way you get really good control over the mapping.
If you want I will whip something up to show you what I mean