Elsa Erazor II User Manual
All about graphics
ELSA ERAZOR II and ELSA VICTORY Erazor LT
13
All about graphics
This is the chapter where we really get stuck in. Anyone who wants to know more about
graphics–especially in connection with the ELSA ERAZOR II and ELSA
VICTORY Erazor LT–will find a whole load of technical stuff right here.
graphics–especially in connection with the ELSA ERAZOR II and ELSA
VICTORY Erazor LT–will find a whole load of technical stuff right here.
3D Graphics Representation
Today it is considered de rigeur to know all about 3D. Your curiosity will be aroused as
soon as you experience the first visual wizardry generated by your new graphics board.
Two features of the 3D display will leap out at you: it's both realistic and fast. The
amount of work required here is known only to the processor, but we will describe it in
detail to you below.
soon as you experience the first visual wizardry generated by your new graphics board.
Two features of the 3D display will leap out at you: it's both realistic and fast. The
amount of work required here is known only to the processor, but we will describe it in
detail to you below.
The 3D Pipeline
What actually happens when a monitor displays a 3D object? The data describing the 3D
object are passed through what is known as the 3D pipeline, in which the mathematical
calculations for its representation in space and perspective on the monitor are carried
out. What happens in detail?
object are passed through what is known as the 3D pipeline, in which the mathematical
calculations for its representation in space and perspective on the monitor are carried
out. What happens in detail?
Start: The object data
The pipeline starts at the object. The object description is made up of the data (points).
Tesselation
In the first step, the object is broken down into a number of polygons or triangles. The
vertices of the triangles are described by coordinate points (x, y and z) with the 'z' value
containing the depth information. Depending on the representation, these vertices also
contain information concerning the material and texture. The volume of data to be pro-
cessed increases enormously because of this conversion of the image information.
vertices of the triangles are described by coordinate points (x, y and z) with the 'z' value
containing the depth information. Depending on the representation, these vertices also
contain information concerning the material and texture. The volume of data to be pro-
cessed increases enormously because of this conversion of the image information.
Object data
Tesselation
Geometrical
transformation
Rendering
Display
on the monitor
3D Pipeline