51 lines
1.3 KiB
GLSL
51 lines
1.3 KiB
GLSL
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#version 100
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// HMS MediaEngine - Generator (GLES, Raspberry Pi)
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// ES 2.0: texture2D, varying, gl_FragColor, Schleifen mit konstanter Höchstgrenze.
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precision mediump float;
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uniform sampler2D u_input_texture;
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uniform vec2 u_resolution;
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uniform float u_time_seconds;
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uniform float u_delta_seconds;
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uniform float u_frame_index;
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uniform float u_layer_opacity;
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uniform float u_audio_rms;
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uniform float u_audio_peak;
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uniform float u_audio_bass;
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uniform float u_audio_mid;
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uniform float u_audio_treble;
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uniform float u_audio_beat;
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uniform vec4 param_color_a;
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uniform vec4 param_color_b;
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uniform float param_type;
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uniform float param_angle;
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uniform float param_center_x;
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uniform float param_center_y;
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uniform float param_width;
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uniform float param_phase;
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uniform float param_speed;
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varying vec2 v_uv;
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void main()
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{
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vec2 p = v_uv - vec2(param_center_x, param_center_y);
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float ang = radians(param_angle);
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vec2 dir = vec2(cos(ang), sin(ang));
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float t;
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if (param_type < 0.5)
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{
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t = dot(p, dir) / max(param_width, 0.0001) + 0.5;
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}
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else
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{
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t = length(p) / max(param_width, 0.0001);
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}
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t += param_phase + u_time_seconds * param_speed;
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t = fract(t);
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vec4 col = mix(param_color_a, param_color_b, clamp(t, 0.0, 1.0));
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col.a *= u_layer_opacity;
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gl_FragColor = col;
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}
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