UIContext.doTextureView

UI method for drawing a texture view

Declaration

Source position: nvcontext.pas line 186

public procedure UIContext.doTextureView(

const aRect: Rect;

const texID: Integer;

zoomRect: Rect;

mipLevel: Integer = -1;

texelScale: Double = 1;

texelOffset: Double = 0;

red: Integer = 0;

green: Integer = 1;

blue: Integer = 2;

alpha: Integer = 3;

style: Integer = 0

);

`aRect`		provides a location and size for the texture view
`texID`		texture identifier (Graphics API specific)
`zoomRect`		rectangle area of the texture displayed
`mipLevel`		mip Level of the texture displayed
`texelScale`		scale applied to the texel fetch
`texelOffset`		offset applied to the texel after scale
`style`		optional style flag to modify the look

Several parameters control the equation used to display the texel

texel = texture2DFetch(...);
pixel = texelSwizzling( texel * texelScale + texelOffset );