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Afterburn: An Introduction Added on: Thu Mar 01 2001 |
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The next element is called Particles Property. This section is some of the world generic settings such as particle life start, seed, and some other ones to control just the life of the particles, this overides the particles life controls, it's pretty useless unless you want to change something in afterburn instead of having to set it up within the particles. But most of these settings you can control within any particle system's control.
Part. Start: This when turned on allows you to tell afterburn when to really start showing, instead of whenever the particles are emitted.
Part. Lif: This allows the Afterburn volumetrics to die at a different time than the particles do, once again these are here just to override the particles incase you want to tell them to live and die differently.
Seed: Just a random fractal number which'll give the fractal algorythm a bit of difference between each particle.
Volume Rendering is a really helpful element, which controls a lot of the overall look of afterburns volumetrics.
Falloff: Falloff controls the overall look of the volumetrics, how the light hits them and the transaprency effects them. This is where you really control how dense, round or flat your particles will look. Essentially they become more washed out and flat on lower values, and the higher the value, the more 3d and sharp they are.
Step Size: Step size controls the quality of the volumetrics, how quickly they render ect. It's basically like fractal noise with iterations or levels in the fractal pattern, how refined and defined the actual pattern is. The higher the value the quicker the volumetrics will render, but they mightn't look nearly as good as they should. A good overall starting point is probably around 1.5 or 2.0 as the particle volumetrics step size value.
Limit: Limit effects the amount of ray tracing performed by the ray tracing engine on the volumetrics. Leaving it at it's default value is probably recommended.
Affect Z-Buffer button: This by default is on, and allows afterburn to share the zbuffer of it's volumetrics with the rest of max.
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