Week 15 Vocab & Terminology
Class hours: 9:40am – 2:05pm
Mr. Cronin
Mr. Herr
Quizzes will be first thing Thursday morning – 10 questions. Quizzes are 15% of your CAWD grade. The other 35% is your class work, and final 50% worker traits.
- Final Gather is a Mental Ray algorithm used in 3D computer graphics rendering, that simulates indirect illumination by light-energy bouncing in a given world.
- Final Gather collects information from all of the textures and lights in any given room and calculates how the light would bounce around the room and absorb color energy from certain objects.
- To use Final Gather in 3d Studio Max you have to turn on the Mental Ray Renderer. You can do this in the bottom of the “Render Scene” Window in the “Common” tab (Shortcut: F10), under the assign renderer tab.
- mr Area Spot stands for mental ray Area Spot, and acts like a normal spot for the mental ray renderer. It is different from a normal spot light in that it allows you to use indirect illumination.
- When using mr Area Spot, turn on the manual settings for “mental ray Indirect Illumination“. This allows to manually adjust how much energy a light releases and how many photons it adds to global illumination.
- When using Final Gather it is good habit to use the “Arch & Design” material presets. These presets contain settings for Final Gather and allow for light to absorb colors and/or be reflected by the material.
- Global Illumination is just a general amount of light in a scene. It helps to fill out and blend the lighting in the scene, the same way a dim omni light would in traditional lighting.
- In Final Gather, 3ds Max places a bunch of imaginary points (FG Point Density) around a scene on objects. Then Max calculates how a number of light beams (Rays per FG Point) would bounce around each imaginary point. Finally you can smooth out the light beams (Interpolate Over Num FG Points) so rather than having a bunch of light points all over the scene, you will have smooth transitions between light sources.
- Once Final Gather calculates all of the lighting in a scene, more often than not, your scene will be far to dark in places. To fill out the lighting in a scene you may add Global Illumination. This is similar to a fill light.
- Exposure control (8 on keyboard) is just like using a Camera or Photoshop settings in Max before you render your full size image. It allows you to adjust brightness, contrast, mid tones, and physical scale.
