74 lines
2.1 KiB
HTML
74 lines
2.1 KiB
HTML
<html>
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<head>
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<title>Particle Manual: Introduction</title>
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<link rel = "stylesheet" type = "text/css" href = "../styles/design.css">
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</head>
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<body>
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<h1 class = "MsoTitle">Particle Manual</h1>
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<hr>
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<h1><a name = "intro">1 Introduction</a></h1>
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The particle system defined in the engine encompasses more than just flying
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sprites.
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<br>
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The particle system is a pipeline through which models, beams and
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trail effects can be defined and utilized by the game-logic without having to
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know how to program a single line of code.
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<p>In this document we'll go over the conventions and commands you need to look
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at if you want to create particle effects.
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<h2><a name = "what">1.1 What is a particle config?</a></h2>
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Particle configs short text scripts that define the properties of a particle
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effect as it appears and interacts in a game world.
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<br>
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For example, it defines which textures and shapes are used and if they emit
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sound, light or collide with the geometry around them.
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<p>Particle configs are located in the particles/ directory, using the '.cfg'
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file extension.
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<p>Contained within a particle config we can define multiple effects of similar
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nature. Let's look at the particle config: 'particles/volume.cfg' which as of
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this writing only contains one entry:
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<p><pre class = "type">
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r_part dustmote
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{
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texture ball
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type normal
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count 1
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blend add
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rgbf 0 0 0
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alpha 0
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rampmode lerp
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ramp 0 0 0 0 0.5
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ramp 0 0 0 0 0.5
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ramp 0 0 0 0 0.5
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ramp 255 255 190 0.5 0.5
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ramp 0 0 0 0 0.5
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die 10 5
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gravity 1
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scalefactor 0
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}
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</pre>
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<p>This is a more complex material, dealing with pre-programmed color and alpha
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changes over time to create the effect of dust traveling inside a volume.
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<h2><a name = "conventions">1.2 Particle Name & File Conventions</a></h2>
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The first line tells the engine that we're defining a new particle effect with
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the name 'dustmote'.
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<br>
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As this effect is defined in the file 'volume.cfg', the
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name by which this specific effect will be accessible is 'volume.dustmote'.
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<p align = "center">Back | <a href = "../index.html">Home</a> | <a href = "../ch02/pg2_1.htm">Next</a>
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</body>
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</html>
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