# The graphics/opencsg port

## opencsg-1.3.1p0 – Constructive Solid Geometry rendering library

## Description

    OpenCSG is a library that does image-based CSG rendering using OpenGL.
    OpenCSG is written in C++ and supports most modern graphics hardware.

    CSG is short for Constructive Solid Geometry and denotes an approach
    to model complex 3D-shapes using simpler ones. I.e., two shapes can be
    combined by taking the union of them, by intersecting them, or by
    subtracting one shape of the other. The most basic shapes, which are
    not result of such a CSG operation, are called primitives. Primitives
    must be solid, i.e., they must have a clearly defined interior and
    exterior. By construction, a CSG shape is also solid then.

    Image-based CSG rendering (also z-buffer CSG rendering) is a term that
    denotes algorithms for rendering CSG shapes without an explicit
    calculation of the geometric boundary of a CSG shape. Such algorithms
    use frame-buffer settings of the graphics hardware, e.g., the depth
    and stencil buffer, to compose CSG shapes. OpenCSG implements a
    variety of those algorithms, namely the Goldfeather algorithm and the
    SCS algorithm, both of them in several variants.

WWW: http://www.opencsg.org/

Categories:
  graphics

## Library dependencies

- graphics/glew
- x11/qt4

## Build dependencies

## Run dependencies