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5 4/24/98 - Clean up initialization sequence and eliminate
6 interdependencies between lighting and position.
8 4/21/98 - Tweak lighting parameter interpolation tables to better fit
11 4/21/98 - Make sure all .hxx files have #ifndef cplusplus #error
12 Make sure all #ifdef _FILE_H or _FILE_HXX
14 4/14/98 - Convert gl__() calls in Cockpit/ to xgl__() calls
16 3/18/98 - Use win32 specific calls to get daylight savings time on windoze
18 12/29/97 - View frustum culling
20 1/5/98 - Create a development "roadmap"
22 12/30/97 - fix winding problem with tri-strips in obj.c (wait for next
25 12/29/97 - Add a mechanism to parse command line options
26 * A simple clear-screen sky.
29 * Less detailed terrain.
30 * Texture - but no MIP-mapping.
31 * Texture - but no bilinear blending.
34 12/29/97 - sky tweaking
36 So, by building the sky in the flattened shape, we can have it be
37 very foggy at the horizon and clear blue overhead.
39 The other important feature of this model is the colours. We
40 colour each vertex of the dish individually to allow for cute
41 sunsets, a darker blue overhead than at the horizon in daylight, a
42 gradual darkening of the sky as a function of altitude for very
43 high altitude flight - into space. Also we tint the horizon more
44 in the direction of the sun so that sunset starts where the sun
45 goes down - and the sky remains blue on the opposite side of the
46 sky - then as the sun gets lower, the colour spreads outwards all
47 around the sky and the black of night creeps in slowly from the
48 opposite side of the sky from the sunset.
50 We also like to tint the bottom edge of the sky with white - even
51 in broad daylight - so it looks fuzzy - even when there is very
52 little fog to achieve that effect.
54 We use a text file that contains a lookup table relating the sun
55 angle relative to the horizon to:
57 * The colour at the top of the sky dome,
58 * The colour of the horizon nearest to the sun
59 * The colour of the horizon farthest from the sun
60 * The colour of the texture environment blend for the clouds.
63 We can then tweak that file to set up all the conditions. The
64 realtime system interpolates the horizon colours all around the edge
67 12/29/97 - Ground collision detection
69 12/29/97 - glut windows or something for panel area - consider 3d
70 panels, careful of texture memory problems.
72 1/5/98 - bzflag sound code might be able to work for us.