42 lines
1.1 KiB
Plaintext
42 lines
1.1 KiB
Plaintext
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shader_type canvas_item;
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uniform sampler2D texture;
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uniform float time;
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uniform vec2 resolution;
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uniform vec4 dissolveColor; // Controllo del colore e della trasparenza dell'effetto di dissolvenza
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uniform float circleSize; // Controllo sulla grandezza del cerchio
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uniform sampler2D hologramTexture;
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uniform float maxR = .5;
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uniform float smoothness = .5;
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uniform float displayRatio =1.7;
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void fragment() {
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// normalized configurable factors
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// float maxR = .5;
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float minR = maxR * (1.0 - smoothness);
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vec2 centerUv = vec2(0.5, 0.5);
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// just to play animation
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// Normalized pixel coordinates (from 0 to 1)
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vec2 uv = UV;
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vec2 duv = uv;
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duv.x *= displayRatio;
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centerUv.x *= displayRatio;
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vec3 col = texture(texture, uv).rgb;
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float dist = length(centerUv - duv);
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COLOR.a = 0.;
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if (dist > maxR) {
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COLOR = vec4(0.0, 0.0, 0.0, 1.0);
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}
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if (maxR > dist && dist > minR) {
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col = mix(col, vec3(0.0, 0.0, 0.0), smoothstep(minR/maxR,1.0,dist/maxR));
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}
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// COLOR = vec4(col,1.0);
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}
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