Creating Craters with image maps

[Henry Blewer]

I am going to see how to make the craters of a planet using images maps. I'll post what I can figure out here.

[Henry Blewer]

Here is a planet with the image of Europa mapped onto the surface. The image is available here.
http://www.nasa.gov/multimedia/3d_resources/assets/jup2vss2.html
The tgd file is made using a second planet to map the image onto. I deleted the atmosphere. I used the Europa image for color and displacement. This is about as far as I can go with this. The crater image map has to be seamless. Map the image onto the second planet using spherical mapping. I used a default shader for the image.

[aymenk2003]

thanks for sharing...

N.KAID

[Henry Blewer]

I tried out using fake stones with negative scale. I used surface layers with voronoi cell shaders for input and displacement. The result is not rounded craters, but close. Here is the tgd file.

[TheBlackHole]

Exploring image map craters? Too easy!!! Just find a height map of some craters (Map-A-Planet is a good place to start) and slap it on the terrain with displacement!

[Henry Blewer]

That's one way. I am trying to make the image map small, and the rest procedural. This will allow complex variation, but uses small amount of RAM.

[Jack]

another easy way is to just use a simple paint shader and paint the craters on to the terrain then ad a displacement shader