mirror of
https://github.com/comfyanonymous/ComfyUI.git
synced 2026-05-10 17:22:36 +08:00
cc3e622d9f
Sets the 'description' field on every subgraph blueprint node, which will show on the node preview and tooltip. Covers all 51 blueprint files under blueprints/.
440 lines
11 KiB
JSON
440 lines
11 KiB
JSON
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"value"
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"widgets_values": [],
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"title": "Brightness and Contrast"
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}
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"label": "u_float2",
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{
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"localized_name": "size_mode",
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"name": "size_mode",
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"name": "size_mode"
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"outputs": [
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{
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"localized_name": "IMAGE0",
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"name": "IMAGE0",
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"type": "IMAGE",
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},
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{
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"name": "IMAGE1",
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},
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],
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"properties": {
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},
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"widgets_values": [
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"#version 300 es\nprecision highp float;\n\nuniform sampler2D u_image0;\nuniform float u_float0; // Brightness slider -100..100\nuniform float u_float1; // Contrast slider -100..100\n\nin vec2 v_texCoord;\nout vec4 fragColor;\n\nconst float MID_GRAY = 0.18; // 18% reflectance\n\n// sRGB gamma 2.2 approximation\nvec3 srgbToLinear(vec3 c) {\n return pow(max(c, 0.0), vec3(2.2));\n}\n\nvec3 linearToSrgb(vec3 c) {\n return pow(max(c, 0.0), vec3(1.0/2.2));\n}\n\nfloat mapBrightness(float b) {\n return clamp(b / 100.0, -1.0, 1.0);\n}\n\nfloat mapContrast(float c) {\n return clamp(c / 100.0 + 1.0, 0.0, 2.0);\n}\n\nvoid main() {\n vec4 orig = texture(u_image0, v_texCoord);\n\n float brightness = mapBrightness(u_float0);\n float contrast = mapContrast(u_float1);\n\n vec3 lin = srgbToLinear(orig.rgb);\n\n lin = (lin - MID_GRAY) * contrast + brightness + MID_GRAY;\n\n // Convert back to sRGB\n vec3 result = linearToSrgb(clamp(lin, 0.0, 1.0));\n\n fragColor = vec4(result, orig.a);\n}\n",
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"from_input"
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]
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}
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"extra": {
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"workflowRendererVersion": "LG"
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},
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"category": "Image Tools/Color adjust",
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"description": "Adjusts image brightness and contrast levels."
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}
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]
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},
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"extra": {}
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} |