85 lines
2.3 KiB
Text
85 lines
2.3 KiB
Text
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shader_type canvas_item;
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uniform int transition_type = 0;
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uniform vec4 color : hint_color = vec4(1, 1, 1, 1);
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uniform float diamond_size: hint_range(0, 1) = 0;
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uniform float blur_intensity: hint_range(0, 32) = 4.0;
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uniform float process_value: hint_range(0, 1) = 0;
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vec2 get_pixel_uv(vec2 uv, float x)
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{
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uv = floor(uv * x + 0.5) / x;
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return uv;
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}
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vec4 fade_transition(vec4 txt, vec4 fade_color, float v)
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{
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txt.rgb = mix(txt.rgb, fade_color.rgb, v);
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return txt;
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}
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vec4 diamond_transition(vec4 txt, vec4 fade_color, vec2 uv, vec2 fragcoord, float size, float v) {
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float diamondPixelSize = size;
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float xFraction = fract(fragcoord.x / diamondPixelSize);
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float yFraction = fract(fragcoord.y / diamondPixelSize);
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float xDistance = abs(xFraction - 0.5);
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float yDistance = abs(yFraction - 0.5);
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if (xDistance + yDistance + uv.y > v * 3f) {
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return txt;
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}
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return fade_color;
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}
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vec4 blur(vec2 uv, sampler2D source, float intensity)
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{
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float s = 0.004f * intensity;
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vec4 result = vec4 (0);
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result += texture(source, uv + vec2(-s, -s));
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result += 2.0 * texture(source, uv + vec2(-s, 0));
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result += texture(source, uv + vec2(-s, s));
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result += 2.0 * texture(source, uv + vec2(0, -s));
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result += 4.0 * texture(source, uv);
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result += 2.0 * texture(source, uv + vec2(0, s));
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result += texture(source, uv + vec2(s, -s));
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result += 2.0 * texture(source, uv + vec2(s, 0));
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result += texture(source, uv + vec2(s, -s));
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result = result * 0.0625;
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return result;
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}
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void fragment()
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{
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vec4 txt = texture(TEXTURE, UV);
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vec4 output_color = txt;
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if (transition_type == 1) // FADE
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{
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output_color = fade_transition(txt, color, process_value);
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}
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else if (transition_type == 2) // DIAMOND
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{
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output_color = diamond_transition(txt, color, UV, FRAGCOORD.xy, diamond_size, process_value);
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}
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else if (transition_type == 3) // BLUR
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{
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output_color = blur(UV, TEXTURE, process_value * blur_intensity);
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}
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else if (transition_type == 4) // BLUR AND FADE
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{
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output_color = blur(UV, TEXTURE, process_value * blur_intensity);
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output_color = fade_transition(output_color, color, process_value);
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}
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else if (transition_type == 5) // PIXEL
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{
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float size = mix(1.0, 128.0, 1.0 - process_value);
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vec2 pixel_uv = get_pixel_uv(UV, size);
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pixel_uv = mix(UV, pixel_uv, vec2(process_value));
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output_color = texture(TEXTURE, pixel_uv);
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}
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COLOR = output_color;
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}
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