User`s guide

Keyframe Interpolation

This feature is also known as “morphing.” In an animation, a start and end

point are picked as the key frames. In a 3D rendering, the start point could

have a character with a neutral expression, and the end point could have that

same character smiling. Additional frames are interpolated (inserted) between

the two keyframes in order that “morphs” (transforms) the image so that there

is a smooth transition between the key frames.

KTX Buffer Region Extension

This OpenGL

programming term refers to a feature that rapidly updates

portions of the display of 3D modelling applications that change very quickly,

or have been moved or occluded. It does this by optimizing the storage of

buffer regions in the graphics card’s memory buffer. Other applications are

typically not adversely affected when this is enabled.

Lighting

In 3D computer graphics, refers to aspects and quality of the virtual light

source being used to make an object visible. Lighting can strongly affect the

“mood” of a scene. For example, a “harsh” light could be a bare lightbulb that

is glaringly bright on the objects closest to it while casting strong shadows in

the background. A “softer” light would be more diffuse and not cast shadows,

such as you would get outdoors on a typical overcast day.

Mipmapping

The most memory-intensive aspect of 3D graphics are the textures that give

an object its realism (like wood, marble, leather, and cloth). Because objects

in real life become less detailed as they move farther away from the viewer,

3D programmers simulate this by using less detailed, lower resolution texture

maps on distant objects. These texture maps are merely scaled down versions

of the main texture map used when the object is up close, and they use less

memory.

hightech_maib -- HIGHTECH -- 202.82.32.137

-- Monday, October 30, 2006