diff options
Diffstat (limited to 'examples/opengl/qopenglwindow/background.frag')
-rw-r--r-- | examples/opengl/qopenglwindow/background.frag | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/examples/opengl/qopenglwindow/background.frag b/examples/opengl/qopenglwindow/background.frag deleted file mode 100644 index 4af85aae8e..0000000000 --- a/examples/opengl/qopenglwindow/background.frag +++ /dev/null @@ -1,30 +0,0 @@ -#define M_PI 3.14159265358979323846 -#define SPEED 10000.0 - -uniform int currentTime; -uniform highp vec2 windowSize; - -highp float noise(highp vec2 co) -{ - return 0.5 * fract(sin(dot(co.xy, vec2(12.9898,78.233))) * 43758.5453); -} - -highp float curvSpeed() -{ - return (mod(float(currentTime), SPEED) / SPEED) * (2.0 * M_PI); -} - -highp float curv(int curvCount) -{ - highp float curv_y = 0.1 *(cos((gl_FragCoord.x / windowSize.x) * (float(curvCount * 2) * M_PI) - curvSpeed())) + 0.5; - highp float frag_y = gl_FragCoord.y / windowSize.y; - return 1.0 - abs(curv_y - frag_y); -} - -void main() -{ - highp float coordNoise = noise(gl_FragCoord.xy); - highp float proximity = smoothstep(0.85, 1.0, (curv(6) + 1.0) * (coordNoise )); - highp vec3 color = vec3(coordNoise) * proximity; - gl_FragColor = vec4(color, 1.0); -} |