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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| import Shell from 'gi://Shell' | ||
| import GObject from 'gi://GObject' | ||
|
|
||
| const VIGNETTE_DECLARATIONS = ' \ | ||
| uniform float brightness; \n\ | ||
| uniform float vignette_sharpness; \n\ | ||
| float rand(vec2 p) { \n\ | ||
| return fract(sin(dot(p, vec2(12.9898, 78.233))) * 43758.5453123); \n\ | ||
| } \n'; | ||
|
|
||
| const VIGNETTE_CODE = ' \ | ||
| cogl_color_out.a = cogl_color_in.a; \n\ | ||
| cogl_color_out.rgb = vec3(0.0, 0.0, 0.0); \n\ | ||
| vec2 position = cogl_tex_coord_in[0].xy - 0.5; \n\ | ||
| float t = clamp(length(1.41421 * position), 0.0, 1.0); \n\ | ||
| float pixel_brightness = mix(1.0, 1.0 - vignette_sharpness, t); \n\ | ||
| cogl_color_out.a *= 1.0 - pixel_brightness * brightness; \n\ | ||
| cogl_color_out.a += (rand(position) - 0.5) / 100.0; \n'; | ||
|
|
||
| export const MyRadialShaderEffect = GObject.registerClass({ | ||
| Properties: { | ||
| 'brightness': GObject.ParamSpec.float( | ||
| 'brightness', 'brightness', 'brightness', | ||
| GObject.ParamFlags.READWRITE, | ||
| 0, 1, 1), | ||
| 'sharpness': GObject.ParamSpec.float( | ||
| 'sharpness', 'sharpness', 'sharpness', | ||
| GObject.ParamFlags.READWRITE, | ||
| 0, 1, 0), | ||
| }, | ||
| }, class MyRadialShaderEffect extends Shell.GLSLEffect { | ||
| constructor(params) { | ||
| super(params); | ||
| this._brightness = undefined; | ||
| this._sharpness = undefined; | ||
|
|
||
| this._brightnessLocation = this.get_uniform_location('brightness'); | ||
| this._sharpnessLocation = this.get_uniform_location('vignette_sharpness'); | ||
|
|
||
| this.brightness = 1.0; | ||
| this.sharpness = 0.0; | ||
| } | ||
|
|
||
| vfunc_build_pipeline() { | ||
| this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT, | ||
| VIGNETTE_DECLARATIONS, VIGNETTE_CODE, true); | ||
| } | ||
|
|
||
| get brightness() { | ||
| return this._brightness; | ||
| } | ||
|
|
||
| set brightness(v) { | ||
| if (this._brightness === v) | ||
| return; | ||
| this._brightness = v; | ||
| this.set_uniform_float(this._brightnessLocation, | ||
| 1, [this._brightness]); | ||
| this.notify('brightness'); | ||
| } | ||
|
|
||
| get sharpness() { | ||
| return this._sharpness; | ||
| } | ||
|
|
||
| set sharpness(v) { | ||
| if (this._sharpness === v) | ||
| return; | ||
| this._sharpness = v; | ||
| this.set_uniform_float(this._sharpnessLocation, | ||
| 1, [this._sharpness]); | ||
| this.notify('sharpness'); | ||
| } | ||
| }); |
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