231 lines
6.6 KiB
Plaintext
231 lines
6.6 KiB
Plaintext
|
INTRODUCTION
|
||
|
|
------------
|
||
|
|
|
||
|
|
This directory is usually included in the Mesa demos distribution or
|
||
|
|
in the GLUT distribution.
|
||
|
|
|
||
|
|
I have written the demos included in this directory mainly for showing
|
||
|
|
the capabilities of the Mesa library when using the Voodoo driver.
|
||
|
|
However all the demos are written using the GLUT and OpenGL so they
|
||
|
|
work with any GLUT/OpenGL platform (tested: Linux+Mesa+Voodoo driver,
|
||
|
|
Linux+Mesa+X11 driver, Win95+Mesa+Voodoo driver and SGI Onyx IR thanks
|
||
|
|
to Mark Kilgard).
|
||
|
|
|
||
|
|
All the demos make an heavy use of texture mapping, blending, etc. so
|
||
|
|
you _need_ some kind of hardware support for the OpenGL otherwise they
|
||
|
|
will run at ~1fps. You need also a OpenGL 1.1 compliant library.
|
||
|
|
|
||
|
|
You can find some screenshot of these demos at
|
||
|
|
http://www-hmw.caribel.pisa.it/fxmesa/fxdemos.hmtl
|
||
|
|
|
||
|
|
Write me if you find some bug in the demos.
|
||
|
|
|
||
|
|
David Bucciarelli (tech.hmw@plus.it)
|
||
|
|
|
||
|
|
Humanware s.r.l.
|
||
|
|
Via XXIV Maggio 62
|
||
|
|
Pisa, Italy
|
||
|
|
Tel./Fax +39-50-554108
|
||
|
|
email: info.hmw@plus.it
|
||
|
|
www: www-hmw.caribel.pisa.it
|
||
|
|
|
||
|
|
|
||
|
|
A BRIEF DESCRIPTION OF THE DEMOS
|
||
|
|
--------------------------------
|
||
|
|
|
||
|
|
|
||
|
|
IPERS
|
||
|
|
-----
|
||
|
|
|
||
|
|
Sources: ipers.c image.c
|
||
|
|
|
||
|
|
A nice spinning fractal object.
|
||
|
|
|
||
|
|
|
||
|
|
RAY
|
||
|
|
---
|
||
|
|
|
||
|
|
Sources: ray.c
|
||
|
|
|
||
|
|
I'm using ray tracing to dynamically generate texture maps with
|
||
|
|
specular, diffuse, shadows, and mirror colors. Each frame the texture
|
||
|
|
maps of the plane and of the sphere are partially updated. With this
|
||
|
|
technique you can obtain true mirrors, shadows, specular highlights,
|
||
|
|
bump mapping, etc. in realtime. This demo is really CPU intensive
|
||
|
|
(~25fps on a PentiumII@300MHz with a Pure3D). Support on-the-fly
|
||
|
|
switching between fullscreen and in-window rendering under Linux/Mesa
|
||
|
|
(start your X server in 16 bpp mode and press the spacebar).
|
||
|
|
|
||
|
|
|
||
|
|
TUNNEL
|
||
|
|
------
|
||
|
|
|
||
|
|
Sources: tunnel.c image.c sources.c
|
||
|
|
Data: bw.rgb tile.rgb
|
||
|
|
|
||
|
|
The model was designed and prelighted with Alias|Wavefront
|
||
|
|
PowerAnimator V8. Triangle strips were built with a tool written by me
|
||
|
|
and then statically included in the sources. This demo doesn't
|
||
|
|
require the ZBuffer and use antialiased polygons. Support on-the-fly
|
||
|
|
switching between fullscreen and in-window rendering under Linux/Mesa
|
||
|
|
(start your X server in 16 bpp mode and press the spacebar).
|
||
|
|
|
||
|
|
|
||
|
|
TUNNEL2
|
||
|
|
------
|
||
|
|
|
||
|
|
Sources: tunnel2.c image.c sources.c
|
||
|
|
Data: bw.rgb tile.rgb
|
||
|
|
|
||
|
|
The some tunnel demo but with two output channels. A nice
|
||
|
|
example of the Mesa/Voodoo support for multiple boards in
|
||
|
|
the some PC.
|
||
|
|
|
||
|
|
|
||
|
|
TEAPOT
|
||
|
|
------
|
||
|
|
|
||
|
|
Sources: teapot.c image.c dteapot.c shadow.c
|
||
|
|
Data: bw.rgb tile.rgb
|
||
|
|
|
||
|
|
The shadow is drawn projecting the teapot geometry over the plane. All
|
||
|
|
other light effects are drawn using the standard OpenGL capabilities.
|
||
|
|
Support on-the-fly switching between fullscreen and in-window
|
||
|
|
rendering under Linux/Mesa (start your X server in 16 bpp mode and
|
||
|
|
press the spacebar).
|
||
|
|
|
||
|
|
|
||
|
|
FIRE
|
||
|
|
----
|
||
|
|
|
||
|
|
Sources: fire.c image.c
|
||
|
|
Data: s128.rgb tree2.rgb
|
||
|
|
|
||
|
|
The demo use a small particle system to draw some nice visual effect.
|
||
|
|
You can interactively change many parameters of the particle system
|
||
|
|
and you can choose the number of particles at the startup ('fire
|
||
|
|
4000'). This demo should be called fountain. Support on-the-fly
|
||
|
|
switching between fullscreen and in-window rendering under Linux/Mesa
|
||
|
|
(start your X server in 16 bpp mode and press the spacebar).
|
||
|
|
|
||
|
|
|
||
|
|
TERRAIN
|
||
|
|
-------
|
||
|
|
|
||
|
|
Sources: mesaland.c
|
||
|
|
|
||
|
|
This demo is base on another demo written by Mikael SkiZoWalker. I
|
||
|
|
have added the capabilities to freely fly around, view culling and
|
||
|
|
some nice color. Support on-the-fly switching between fullscreen and
|
||
|
|
in-window rendering under Linux/Mesa (start your X server in 16 bpp
|
||
|
|
mode and press the spacebar).
|
||
|
|
|
||
|
|
|
||
|
|
GLTEST
|
||
|
|
------
|
||
|
|
|
||
|
|
Sources: gltest.c
|
||
|
|
|
||
|
|
This is a simple benchmark suite that I'm using in the development of
|
||
|
|
the Mesa/Voodoo driver. Type 'gltest >my.res' and you will get some
|
||
|
|
data about the performances of your OpenGL. Follow the results with my
|
||
|
|
PC (Linux+Mesa-2.6+PentiumII@300MHz+Pure3D):
|
||
|
|
|
||
|
|
Simple Points
|
||
|
|
587900.080674 Pnts/sec
|
||
|
|
|
||
|
|
Smooth Lines
|
||
|
|
SIZE=480 => 39007.426183 Lins/sec
|
||
|
|
SIZE=250 => 74575.016485 Lins/sec
|
||
|
|
SIZE=100 => 179734.882409 Lins/sec
|
||
|
|
SIZE=050 => 183987.795297 Lins/sec
|
||
|
|
SIZE=025 => 183820.086309 Lins/sec
|
||
|
|
|
||
|
|
|
||
|
|
ZSmooth Triangles
|
||
|
|
SIZE=480 => 784.954997 Tris/sec
|
||
|
|
SIZE=250 => 2862.325889 Tris/sec
|
||
|
|
SIZE=100 => 17779.492938 Tris/sec
|
||
|
|
SIZE=050 => 159339.829844 Tris/sec
|
||
|
|
SIZE=025 => 428602.984008 Tris/sec
|
||
|
|
|
||
|
|
|
||
|
|
ZSmooth Tex Blend Triangles
|
||
|
|
SIZE=480 => 784.473931 Tris/sec
|
||
|
|
SIZE=250 => 2853.781513 Tris/sec
|
||
|
|
SIZE=100 => 17598.252146 Tris/sec
|
||
|
|
SIZE=050 => 152632.578337 Tris/sec
|
||
|
|
SIZE=025 => 377584.760048 Tris/sec
|
||
|
|
|
||
|
|
|
||
|
|
ZSmooth Tex Blend TMesh Triangles
|
||
|
|
SIZE=400 => 563.900695 Tris/sec, MPixel Fill/sec: 45.112056
|
||
|
|
SIZE=250 => 1449.777225 Tris/sec, MPixel Fill/sec: 45.305538
|
||
|
|
SIZE=100 => 8702.869121 Tris/sec, MPixel Fill/sec: 43.514346
|
||
|
|
SIZE=050 => 31896.867466 Tris/sec, MPixel Fill/sec: 39.871084
|
||
|
|
SIZE=025 => 114037.262894 Tris/sec, MPixel Fill/sec: 35.636645
|
||
|
|
SIZE=010 => 220494.235839 Tris/sec, MPixel Fill/sec: 11.024712
|
||
|
|
SIZE=005 => 225615.506651 Tris/sec, MPixel Fill/sec: 2.820194
|
||
|
|
SIZE=002 => 225607.681439 Tris/sec, MPixel Fill/sec: 0.451215
|
||
|
|
|
||
|
|
|
||
|
|
Color/Depth Buffer Clears
|
||
|
|
295.042474 Clrs/sec, MPixel Fill/sec: 90.553256
|
||
|
|
|
||
|
|
|
||
|
|
Follow the results with my
|
||
|
|
PC (Linux+Mesa-3.0beta5+PentiumII@300MHz+Voodoo2):
|
||
|
|
|
||
|
|
|
||
|
|
Simple Points
|
||
|
|
1620113.525130 Pnts/sec
|
||
|
|
|
||
|
|
Smooth Lines
|
||
|
|
SIZE=480 => 73841.166065 Lins/sec
|
||
|
|
SIZE=250 => 140794.035316 Lins/sec
|
||
|
|
SIZE=100 => 344185.242157 Lins/sec
|
||
|
|
SIZE=050 => 420399.008289 Lins/sec
|
||
|
|
SIZE=025 => 420261.389773 Lins/sec
|
||
|
|
|
||
|
|
|
||
|
|
ZSmooth Triangles
|
||
|
|
SIZE=480 => 1434.668506 Tris/sec
|
||
|
|
SIZE=250 => 5228.449614 Tris/sec
|
||
|
|
SIZE=100 => 46603.815842 Tris/sec
|
||
|
|
SIZE=050 => 325757.045961 Tris/sec
|
||
|
|
SIZE=025 => 589022.403336 Tris/sec
|
||
|
|
|
||
|
|
|
||
|
|
ZSmooth Tex Blend Triangles
|
||
|
|
SIZE=480 => 1414.900041 Tris/sec
|
||
|
|
SIZE=250 => 5006.055235 Tris/sec
|
||
|
|
SIZE=100 => 43602.252031 Tris/sec
|
||
|
|
SIZE=050 => 303497.092692 Tris/sec
|
||
|
|
SIZE=025 => 517087.428669 Tris/sec
|
||
|
|
|
||
|
|
|
||
|
|
ZSmooth Tex Blend TMesh Triangles
|
||
|
|
SIZE=400 => 1023.273112 Tris/sec, MPixel Fill/sec: 81.861849
|
||
|
|
SIZE=250 => 2595.692121 Tris/sec, MPixel Fill/sec: 81.115379
|
||
|
|
SIZE=100 => 15788.198912 Tris/sec, MPixel Fill/sec: 78.940995
|
||
|
|
SIZE=050 => 58784.121300 Tris/sec, MPixel Fill/sec: 73.480152
|
||
|
|
SIZE=025 => 244233.873481 Tris/sec, MPixel Fill/sec: 76.323085
|
||
|
|
SIZE=010 => 474995.004191 Tris/sec, MPixel Fill/sec: 23.749750
|
||
|
|
SIZE=005 => 475124.354163 Tris/sec, MPixel Fill/sec: 5.939054
|
||
|
|
SIZE=002 => 474959.089503 Tris/sec, MPixel Fill/sec: 0.949918
|
||
|
|
|
||
|
|
|
||
|
|
Color/Depth Buffer Clears
|
||
|
|
478.654830 Clrs/sec, MPixel Fill/sec: 146.906826
|
||
|
|
|
||
|
|
|
||
|
|
PALTEX and GLBPALTX
|
||
|
|
-------------------
|
||
|
|
|
||
|
|
Sources: paltex.c and glbpaltx.c
|
||
|
|
|
||
|
|
The PALTEX example was written by Brian Paul and it shows the
|
||
|
|
capabilities of the GL_EXT_paletted_texture extension. I have written
|
||
|
|
the other example in order to show the capabilities of the
|
||
|
|
gl3DfxSetPaletteEXT() (it used only by GLQuake and Quake2).
|