| BMP, JPG and TGA texture loader |
30 April 2002 |
|
| Description : |
This is the unit that I use to load BMP, JPG and TGA files. No extra DLL's
required.
Usage : Include the unit in your Uses clause.
- declare the texture in your main program (eg. MyTexture : glUint; )
- call the load function. LoadTexture('images/mytexture.jpg', myTexture,
FALSE);
and then you can bind the texture.
A texture can be loaded from a file or from the resource compiled with the
executable. The third parameter (LoadFromResource) determines where the file
should get loaded from. If LoadFromResource is TRUE, the function will try and
load the image the the resource file.
I have also got a "lite" version that loads BMP files only. The reason for that
is that EXE's created with this unit shouldnt be around 35KB.
|
| Complete : |
 BMP,
JPG and TGA loader with sample application (54 KB)
|
| Lite : |
BMP lite
with sample application (18 KB)
|
| Perma Link: |
BMP, JPG and TGA texture
loader |
|
A program that uses specular
highlighting as well as environment mapping. The spaceship had over 8000
polygons.
Programs demonstrating specular highlighting.
A small program that does some cool OpenGL effects. Its
basically a cylinder that turns anti-clockwise around the screen. The cyliner
also gets twisted along the central axis. The radius of the cylinder changes in
different places. The X position of the cylinder moves according to a complex
sin wave.
This is a tunnel effect where the texture coordinates keep
changing based on a sine wave. Obviously the real effect is a lot more "alive".
A very simple
program with two textures. Using your arrow keys you can speed up or change the
direction of rotation.
This program has a ball bouncing on the surface below and
squashing as it hits the bottom. The ball has Spherical Environment Mapping
applied to it and the entire thing is reflected onto the surface below. I still
get around 200fps on 
The idea here was to create an active moving background while
some more interesting things can happen in the foreground.
Initially I wanted to have the end titles for my demo coming
down a tunnel on a rail displaying the coders and graphics artist's names. A
week after I completed the effect I saw it in another demo. Now I guess it sits
here in "the hall of fame" :)
A little demo showing spherical environment mapping.