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#version 330
/*
//if ((pix % 3) == 2)
//black pixel
//else
//get color of floor(pix / 3)
//end
//uniform vec2 resolution;
//uniform sampler2D backbuffer;
//
//void main( void ) {
// vec2 position = ( gl_FragCoord.xy / resolution.xy );
// vec4 color = texture2D(backbuffer, position);
// // ... do something with it ...
//}
// Input vertex attributes (from vertex shader)
in vec2 fragTexCoord;
in vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// Output fragment color
out vec4 finalColor;
// NOTE: Add here your custom variables
// NOTE: Render size values should be passed from code
uniform float renderWidth = 800;
uniform float renderHeight = 450;
float radius = 250.0;
float angle = 0.8;
uniform vec2 center = vec2(200.0, 200.0);
void main()
{
//vec2 newcoord = vec2(fragTexCoord.x + 10, fragTexCoord.y + 10);
//vec2 position = ( mod(gl_FragCoord.x,3), mod(gl_FragCoord.y, 3) );
//if ( position.x == 2 ) || ( position.y == 2 )
//{
// gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
//}
//else
//{
// vec2 position_new = (floor(gl_FragCoord.xy));
// gl_FragColor = texture2D(texture0, position_new);
//}
//gl_FragColor = vec4(0.5, 0.5, 0.5, 1.0);
vec2 p = fragTexCoord;
p.x = fragTexCoord.x + 100000;
gl_FragColor = texture(texture0, p);
}
*/
// Input vertex attributes (from vertex shader)
in vec2 fragTexCoord;
in vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// Output fragment color
out vec4 finalColor;
// NOTE: Add here your custom variables
vec2 textureResolution = vec2(64.0*3.0, 32.0*3.0);
vec2 onePixel = vec2(1.0, 1.0) / textureResolution;
vec2 pixelCoor = fragTexCoord * textureResolution;
void main()
{
vec4 texelColor = vec4(0.0, 0.0, 0.0, 0.0);
// Texel color fetching from texture sampler
if ((mod(floor(pixelCoor.x), 3) == 2.0) || (mod(floor(pixelCoor.y), 3) == 2.0))
{
texelColor = vec4(0.0, 0.0, 0.0, 1.0);
}
else {
pixelCoor.y = -pixelCoor.y;
pixelCoor = pixelCoor / 3.0;
texelColor = texture(texture0, (pixelCoor /textureResolution));
}
//if ((pix % 3) == 2)
//black pixel
//else
//get color of floor(pix / 3)
//end
// NOTE: Implement here your fragment shader code
finalColor = texelColor*colDiffuse;
}
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