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♻️ Simplify transition tweaking

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This commit is contained in:
Simon Schneegans
2022-05-12 05:48:14 +02:00
parent a42e2736db
commit 9d7d912261
14 changed files with 136 additions and 231 deletions
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src/TRexAttack.js
+12 -17
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@@ -103,23 +103,13 @@ var TRexAttack = class TRexAttack {
return shader;
}
// The tweakTransition() is called from extension.js to tweak a window's open / close
// transitions - usually windows are faded in / out and scaled up / down by GNOME Shell.
// The parameter 'forOpening' is set to true if this is called for a window-open
// transition, for a window-close transition it is set to false. The modes can be set to
// any value from here: https://gjs-docs.gnome.org/clutter8~8_api/clutter.animationmode.
// The only required property is 'opacity', even if it transitions from 1.0 to 1.0. The
// current value of the opacity transition is passed as uProgress to the shader.
// Tweaking the actor's scale during the transition only works properly for GNOME 3.38+.
// For this effect, we slightly increase the window's scale as part of the warp effect.
static tweakTransition(actor, settings, forOpening) {
const warp = 1.0 + 0.5 * settings.get_double('claw-scratch-warp');
return {
'opacity': {from: 255, to: 255, mode: 3},
'scale-x': {from: forOpening ? warp : 1.0, to: forOpening ? 1.0 : warp, mode: 3},
'scale-y': {from: forOpening ? warp : 1.0, to: forOpening ? 1.0 : warp, mode: 3}
};
// The getActorScale() is called from extension.js to adjust the actor's size during the
// animation. This is useful if the effect requires drawing something beyond the usual
// bounds of the actor. This only works for GNOME 3.38+.
static getActorScale(settings) {
const scale = 1.0 + 0.5 * settings.get_double('claw-scratch-warp');
return {x: scale, y: scale};
}
// This is called from extension.js if the extension is disabled. This should free all
@@ -195,6 +185,7 @@ if (utils.isInShellProcess()) {
${shaderSnippets.standardUniforms()}
${shaderSnippets.noise()}
${shaderSnippets.compositing()}
${shaderSnippets.easing()}
// See assets/README.md for how this texture was created.
uniform sampler2D uClawTexture;
@@ -247,7 +238,7 @@ if (utils.isInShellProcess()) {
`;
const code = `
float progress = uForOpening ? 1.0-uProgress : uProgress;
float progress = uForOpening ? 1.0-easeOutQuad(uProgress) : easeOutQuad(uProgress);
// Warp the texture coordinates to create a blow-up effect.
vec2 coords = cogl_tex_coord_in[0].st * 2.0 - 1.0;
@@ -255,6 +246,10 @@ if (utils.isInShellProcess()) {
coords = (coords/dist * pow(dist, 1.0 + uWarpIntensity)) * 0.5 + 0.5;
coords = mix(cogl_tex_coord_in[0].st, coords, progress);
// Scale down the window according to the warp.
float scale = 0.5 * uWarpIntensity * (1.0 - progress);
coords = coords * (scale + 1.0) - scale * 0.5;
// Accumulate several random scratches. The color in the scratch map refers to the
// relative time when the respective part will become invisible. Therefore we can
// add a value to make the scratch appear later.