We have our classes ready, time to start writing the actual code. Point pri mitives are not much different from the other pr imitive types available (triangle strips, lists, etc.). . We can still choose what we vertex shader use. A vertex shader tells DirectX about what ty pe of vertices it can expect- such as whether the y are already transformed. if they have a diffuse color, and so on. Since I m mainly aiming this tutorial a t 2D gaming, I m going to use slightly customized TL vertices . This stands for Transformed and Lit. which means the vertices are already transform ed and that the lighting color has already been c omputed. So an X of 300 will be 300 on the screen. and the vertex color will be the final color.

Source
......\GameDev_net -- A Simple Point Sprite Based Particle Engine.htm
......\GameDev_net -- A Simple Point Sprite Based Particle Engine_files
......\................................................................\clear.gif
......\................................................................\discuss.gif
......\................................................................\dotsm.gif
......\................................................................\download.gif

......\................................................................\firetex2.jpeg
......\................................................................\gdlogo2.gif
......\................................................................\global.html
......\................................................................\global.js
......\................................................................\imgFireFX.jpeg
......\................................................................\imgParticle.jpeg
......\................................................................\line.gif
......\................................................................\pointsprite.png
......\................................................................\print.gif
......\................................................................\total.jpeg
......\source
......\......\colAnimatedSign.cls
......\......\colAtomic.cls
......\......\colBlueExplosion.cls
......\......\colBlueThrust.cls
......\......\colBlueTwirl.cls
......\......\colFireFX.cls
......\......\colFireyHeart.cls
......\......\colGalaxy.cls
......\......\colGreenPlasma.cls
......\......\colRedFlower.cls
......\......\colRedTwirl.cls
......\......\colSmokeFX.cls
......\......\colWormhole.cls
......\......\d3dinit.bas
......\......\d3dutil.bas
......\......\frmMain.frm
......\......\mdlDeclarations.bas
......\......\mdlDirectX.bas
......\......\MSSCCPRJ.SCC

......\......\Particle.cls

......\......\Particles.exe
......\......\Particles.vbp
......\......\Particles.vbw

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