Fragment shader to convert YUV420SP (a.k.a NV12 or NV21) to RGB

fragment.glsl

#version 330 core
out vec4 FragColor;
in vec2 texCoord;
uniform sampler2D textureY;
uniform sampler2D textureVU;
void main() 
{
    vec3 yuv, rgb;
    vec3 yuv2r = vec3(1.164, 0.0, 1.596);
    vec3 yuv2g = vec3(1.164, -0.391, -0.813);
    vec3 yuv2b = vec3(1.164, 2.018, 0.0);

    yuv.x = texture(textureY, texCoord).r - 0.0625;
    yuv.y = texture(textureVU, texCoord).g - 0.5;
    yuv.z = texture(textureVU, texCoord).r - 0.5;

    rgb.x = dot(yuv, yuv2r);
    rgb.y = dot(yuv, yuv2g);
    rgb.z = dot(yuv, yuv2b);

    FragColor = vec4(rgb, 1.0);
}

@AhmedX6 https://gist.github.com/tsangz189/1b58f2df84024cf780add1f9fd6f6aaa

Appreciate it!!