Join George Maestri for an in-depth discussion in this video Understanding light decay, part of Maya 2013 Essential Training: 6 Lights and Rendering.
In the real world, the laws of physics determine how a light falls off, and that…would be with the square of the distance.…So that means the further you are away from a light, the less light you get…in any specific area.…So obviously the headlights on your car only illuminate so far out before…they're too dim to see anything.…Now in Maya, lights are actually constant.…So for example, this light here, if I were to render this scene you'll see that…the front cylinder is pretty much as bright as the last cylinder.…
So this light is not decaying.…We can however add in a more realistic light decay.…We can do that in the Attribute Editor.…So I select my spot light and go into the Spotlight Attributes, and under Decay…Rate you will see right now it has no decay.…So in other words, this light will illuminate something 10 feet away just as…much as it will illuminate something that's 1000 feet away.…
But we can change that by changing how this light decays.…Now we have three options here.…We have Linear, which falls off in a Linear fashion, Quadratic, which falls…
- Adjusting the Render Settings menu
- Adding depth map and raytrace shadows
- Understanding the principle of light decay
- Creating cameras
- Using Motion Blur in Maya and mental ray
- Using Final Gather for natural illumination
- Rendering transparent materials with caustics
- Batching rendering
Skill Level Beginner
1. Maya Rendering
2. Lights and Lighting Types in Maya
3. Understanding Cameras
4. Advanced Rendering with mental ray
5. Final Output
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