3D Graphics Programming with QuickDraw 3D 1.5.4

Interpolation Styles

Labels

ASCII: InterpolationStyle
Binary: intp ( = 0x696E7470 )

Interpolation Styles



 
None                0x00000000

Vertex              0x00000001

Pixel               0x00000002

Constant descriptions

None: No interpolation is to occur. The renderer is to apply each effect uniformly across a surface.
Vertex: The renderer is to interpolate values linearly across a verticed surface, using the values at the vertices.
Pixel: The renderer is to calculate a value of each effect for every pixel in the image.

Data Format



 
InterpolationStyleEnum              interpolationStyle

interpolationStyle: The value in this field must be one of these constants: None , Vertex , or Pixel .

Data Size

Description

A scene's interpolation style determines the method of interpolation a renderer uses when applying lighting or other shading effects to a surface. A value of None causes the surfaces of a model to have a faceted appearance; the other two values cause its surfaces to be rendered smoothly.

Parent Hierarchy

Shared, shape, style.

Parent Objects

None.

Child Objects

None.

Example



 
BeginGroup ( DisplayGroup ( ) )

    InterpolationStyle ( Vertex )

    Container (

        Triangle ( ... )

        VertexAttributeSetList ( ... )

        .

        .

        .

    )

EndGroup ( )