crackberg6

Usage

Overview

Flies through height maps, optionally animating the instantiation and destruction of generated tiles; by default, tiles 'grow' into place (height gradually increased up to correct value). In windowed mode the following key controls are available:

Options

crackberg accepts the following options:

--root

Draw on the root window.

--window-id number

Draw on the specified window.

--window

Draw on a newly-created window. This is the default.

--install

Install a private colormap for the window.

--visual visual

Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.

--delay microseconds

Delay between frames; default 20000 (1/50th of a second).

--fps

Display the current frame rate, CPU load, and polygon count.

--crack

Use all possible methods to animate tile instantiation.

--boring

Do not animate instatiation at all; use this to get standard landscape generator behavior.

--letterbox

Drawable window region has a 16:9 aspect ratio, regardless of actual window size.

--lit

Enable lighting.

--flat

Flat shading (OpenGL will use one color per primitive, rather than interpolating betwixt vertices).

--wire

Wireframe.

--nowater

Do not display 'water' (forces negative values to zero, and selects a different coloring method).

--visibility float

Value in range [0.2,1.0] (default 0.6) specifying proportion of viewable XY plane which is to be drawn upon.

--color string

Selects color scheme. Use with no or bogus argument for current list.

--nsubdivs integer

Number of times to recursively subdivide each triangular tile. Each increment increases total triangles by a factor of 4; for instance the default setting 4 results in 256 triangles per tile.

Environment

DISPLAY

to get the default host and display number.

XENVIRONMENT

to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

XSCREENSAVER_WINDOW

The window ID to use with --root.