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https://interpolation-shaders.googlecode.com/files/GTUv050_CG.zip
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==Download==
https://github.com/libretro/common-shaders/tree/master/crt
==Types==
===CRT Geom===
{{Main|CRT Geom}}
[https://github.com/libretro/common-shaders/blob/master/crt/crt-geom-flat.cg crt-geom-flat.cg]
Simulates an apperture grille. Very versatile and modable. One of the more popular CRT shaders. Visit the main article.
===GTU===
*[https://interpolation-shaders.googlecode.com/files/GTUv050_CG.zip GTUv050]
*[https://interpolation-shaders.googlecode.com/files/GTUv050test.tar.gz Test program]
A CRT shader that focuses more on simulating blur and blending effects and color levels of CRT screens rather than the physical attributes like phosphors and curvature. Highly configurable, can be really sharp, or really blurry or anywhere in between, with optional scanlines and contrast and gamma settings. Settings are stored in a separate "config.h" file for easy editing.
The test program is a program that can adjust various attributes, such as horizontal and vertical blur, scanlines, etc. It is useful for testing settings to use with the shader, and also to understand how CRT shaders work in general.
==Future==
