raylib/shaders/gl330/blur.fs
raysan5 b1a90a7f91 Added some useful postprocessing shaders
Shaders come in two flavours:
- shaders/gl330: OpenGL 3.3+ (Windows, Linux, OSX)
- shaders/gles100:  OpenGL ES 2.0 (Android, RPI, HTML5)
2015-09-02 02:44:16 +02:00

29 lines
699 B
GLSL

#version 330
in vec2 fragTexCoord;
out vec4 fragColor;
uniform sampler2D texture0;
uniform vec4 tintColor;
// NOTE: Add here your custom variables
const float renderWidth = 1280;
const float renderHeight = 720;
float offset[3] = float[](0.0, 1.3846153846, 3.2307692308);
float weight[3] = float[](0.2270270270, 0.3162162162, 0.0702702703);
void main()
{
vec3 tc = texture2D(texture0, fragTexCoord).rgb*weight[0];
for (int i = 1; i < 3; i++)
{
tc += texture2D(texture0, fragTexCoord + vec2(offset[i])/renderWidth, 0.0).rgb*weight[i];
tc += texture2D(texture0, fragTexCoord - vec2(offset[i])/renderWidth, 0.0).rgb*weight[i];
}
fragColor = vec4(tc, 1.0);
}