Constructive Solid Geometry. The practice of intersecting one volume with another and performing logical AND, NAND, OR, XOR operations to determine a resultant volume. It is used as an umbrella term also for CPG, Constructive Planar Geometry, which describes similar operations in 2D.

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1answer
98 views

good and free 3D modeling programs for implement into Unity [closed]

I'll make some objects that are not easy to make in Unity, but on my previous question Making holes in 3D objects (Unity) was there an answer that said that I can make it whit an other 3D modeling ...
1
vote
2answers
108 views

Section cut through (solid) geometry

I'm looking for image based (screen space) technique to render section cuts through arbitrary (solid) geometry. I found and studied image based CSG (Kirsch 05 / OpenCSG) but I found it to be perhaps a ...
0
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0answers
46 views

Cutting shapes out of the terrain

I am trying to use Farseer Physics to cut out shapes from my terrain: // contains all vertices of terrain List<Vertices> terrainVertices = new List<Vertices>(); // makes a crate into ...
6
votes
2answers
936 views

What are the time-efficiency characteristics of these voxel data structures?

Real-time, high-resolution voxel raycasters tend to use one of the following optimising data structures in order to achieve interactive frame rates. What are the pros and cons to these, and what other ...
48
votes
3answers
35k views

How are voxel terrain engines made?

A few days ago I found something called voxel terrains and I think that they're pretty cool. But I don't know anything generating them. Do you model it in your modeling software or use something like ...
7
votes
4answers
2k views

Implementing 2D CSG (for collision shapes)?

Are there any simple (or well documented) algorithms for basic CSG operations on 2D polygons? I'm looking for a way to 'add' a number of overlapping 2D collision shapes. These may be convex or ...