[Taera]

ok guess i'll write something short about CGSs.

There are four types of CSGs:
Union, Difference,Intersection and Merge.

Union is simply a group that allows you to control and copy and whatever all objects put into it as one object. useful when you have to copy that single turret 20 times. Displays all objects in group.

Difference. You better study this CSG the best you can because it is the most commonly used one. It acts very simple - it removes all the parts of the first object added to it whenever it intersects with the other objects. Try this:
Create a sphere. create a cube. move the cube to (-1.0, 0.0, 0.0). create CSG group. add the sphere and then the cube (in this particular order). Change the "operation" of CSG to difference. press the "evaluate" button aviable when CSG is chosen. Displays only the first object, with parts of it cut off regarding to the rest of the objects.

Intersection is the opposite of Difference. It shows only those parts of the first object in the list that are intersecting with other objects down the list. Displays only the first object, intersected.

Merge is the more advanced one, you wont use it much. What it does is removes all places where all objects added to the group intersect, making it "one object". Displays all objects in group.

Hope this helps.

EDIT: Three things.
First - the Merge is useful when you use transparent textures because then the various objects put together look like one if transparent.
Second thing is that i've once been looking through the Moray/Povray tutorials and found them rather good.
Third there are things i've found useful in moray, and here's the list: super Qs, beziers, and good textures. Super Qs are everything between a sphere and a square, and between a double pyramid and double cone and more; Beziers are extremly powerful, you can create virtually anything if you master these. Textures are extremly important in Moray as they're one of the best textures in whole modelling world, i'd suggest you study these.

[ October 27, 2002, 22:46: Message edited by: Taera ]