Scintillator/Classes (extension)
| Quarks > Scintillator > VGens > Intrinsics
VTexPos
Extension
ExtensionVGen providing geometry-specific texture coordinates for image sampling.
Description
VTexPos provides a texture coordinate representing the position on the underlying rendered geometry (currently only a full-screen rectangle). Unlike vertex coordinates such as those provided by VNormPos, texture coordinates vary from [0, 1] with 0, 0 in the upper-left hand corner. When rendering the full-screen rectangle they can be thought of as VFragCoord scaled to resolution-independent units. TexPos is most commonly seen as in input to the VSampler for rendering images.
Supported Rates: shape, pixel
Class Methods
.sr
.pr
Make a VTexPos VGen at requested rate.
dimensions
| input | output |
| none | 2 |
Returns:
A texture coordinate usable in a ScinSampler.
Examples
helpfile source: /tmp/tmpjbuo4r8ibaryon_Scintillator/Scintillator/Classes/VTexPos.schelp
link::Scintillator/Classes/VTexPos::
link::Scintillator/Classes/VTexPos::