acually i going to seperate in into 3 layers too.
I guess your right about the brushes. I should include like a sin wave brush type or rethink the brush all together to have the user
have a more custom feel. I just not sure how to rethink it. I guess i need to explore some math functions to get better brushes.
The first layer suppose to contain the hightmap.
The secound layer contains the color of the hightmap. this will be a transparent color.
the third layer contains the contour lines that can be turned on and off.
Once I get that done I learn how to add grass or x file in the 3d view and have a brush for that and add a gui too it. The brush will load a grass
Go through yourself at a wall.