biipadmin/Burn-My-Windows
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

🚚 Move shader code to GLSL files

Browse Source
This commit is contained in:
Simon Schneegans
2022-05-13 08:27:09 +02:00
parent 77d5de7b8e
commit 46cc997e2a
43 changed files with 1303 additions and 1334 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/EnergizeB.js
+4 -112
View File
@@ -132,7 +132,6 @@ var EnergizeB = class EnergizeB {
if (utils.isInShellProcess()) {
const {Clutter, Shell} = imports.gi;
const shaderSnippets = Me.imports.src.shaderSnippets;
ShaderClass = GObject.registerClass({}, class ShaderClass extends Shell.GLSLEffect {
// This is called when the effect is used for the first time. This can be used to
@@ -164,118 +163,11 @@ if (utils.isInShellProcess()) {
// This is called by the constructor. This means, it's only called when the effect
// is used for the first time.
vfunc_build_pipeline() {
const declarations = `
// Inject some common shader snippets.
${shaderSnippets.standardUniforms()}
${shaderSnippets.noise()}
${shaderSnippets.edgeMask()}
const decl =
utils.loadGLSLResource(`/shaders/${EnergizeB.getNick()}-declarations.glsl`);
const code = utils.loadGLSLResource(`/shaders/${EnergizeB.getNick()}.glsl`);
uniform vec3 uColor;
uniform float uScale;
const float SHOWER_TIME = 0.3;
const float SHOWER_WIDTH = 0.3;
const float STREAK_TIME = 0.6;
const float EDGE_FADE = 50;
// This method returns four values:
// result.x: A mask for the particles which lead the shower.
// result.y: A mask for the streaks which follow the shower particles.
// result.z: A mask for the final "atom" particles.
// result.w: The opacity of the fading window.
vec4 getMasks() {
float showerProgress = uProgress/SHOWER_TIME;
float streakProgress = clamp((uProgress-SHOWER_TIME)/STREAK_TIME, 0, 1);
float fadeProgress = clamp((uProgress-SHOWER_TIME)/(1.0 - SHOWER_TIME), 0, 1);
// Gradient from top to bottom.
float t = cogl_tex_coord_in[0].t;
// A smooth gradient which moves to the bottom within the showerProgress.
float showerMask = smoothstep(1, 0, abs(showerProgress - t - SHOWER_WIDTH) / SHOWER_WIDTH);
// This is 1 above the streak mask.
float streakMask = (showerProgress - t - SHOWER_WIDTH) > 0 ? 1 : 0;
// Compute mask for the "atom" particles.
float atomMask = getRelativeEdgeMask(0.2);
atomMask = max(0, atomMask - showerMask);
atomMask *= streakMask;
atomMask *= sqrt(1-fadeProgress*fadeProgress);
// Make some particles visible in the streaks.
showerMask += 0.05 * streakMask;
// Add shower mask to streak mask.
streakMask = max(streakMask, showerMask);
// Fade-out the masks at the window edges.
float edgeFade = getAbsoluteEdgeMask(EDGE_FADE);
streakMask *= edgeFade;
showerMask *= edgeFade;
// Fade-out the masks from top to bottom.
float fade = smoothstep(0.0, 1.0, 1.0 + t - 2.0 * streakProgress);
streakMask *= fade;
showerMask *= fade;
// Compute fading window opacity.
float windowMask = pow(1.0 - fadeProgress, 2.0);
if (uForOpening) {
windowMask = 1.0 - windowMask;
}
return vec4(showerMask, streakMask, atomMask, windowMask);
}
`;
const code = `
vec4 masks = getMasks();
vec4 windowColor = texture2D(uTexture, cogl_tex_coord_in[0].st);
// Shell.GLSLEffect uses straight alpha. So we have to convert from premultiplied.
if (windowColor.a > 0) {
windowColor.rgb /= windowColor.a;
}
// Dissolve window to effect color / transparency.
cogl_color_out.rgb = mix(uColor, windowColor.rgb, 0.5 * masks.w + 0.5);
cogl_color_out.a = windowColor.a * masks.w;
// Add leading shower particles.
vec2 showerUV = cogl_tex_coord_in[0].st + vec2(0, -0.7*uProgress/SHOWER_TIME);
showerUV *= 0.02 * uSize / uScale;
float shower = pow(simplex2D(showerUV), 10.0);
cogl_color_out.rgb += uColor * shower * masks.x;
cogl_color_out.a += shower * masks.x;
// Add trailing streak lines.
vec2 streakUV = cogl_tex_coord_in[0].st + vec2(0, -uProgress/SHOWER_TIME);
streakUV *= vec2(0.05 * uSize.x, 0.001 * uSize.y) / uScale;
float streaks = simplex2DFractal(streakUV) * 0.5;
cogl_color_out.rgb += uColor * streaks * masks.y;
cogl_color_out.a += streaks * masks.y;
// Add glimmering atoms.
vec2 atomUV = cogl_tex_coord_in[0].st + vec2(0, -0.025*uProgress/SHOWER_TIME);
atomUV *= 0.2 * uSize / uScale;
float atoms = pow((simplex3D(vec3(atomUV, uTime))), 5.0);
cogl_color_out.rgb += uColor * atoms * masks.z;
cogl_color_out.a += atoms * masks.z;
// These are pretty useful for understanding how this works.
// cogl_color_out = vec4(masks.rgb, 1.0);
// cogl_color_out = vec4(vec3(masks.x), 1.0);
// cogl_color_out = vec4(vec3(masks.y), 1.0);
// cogl_color_out = vec4(vec3(masks.z), 1.0);
// cogl_color_out = vec4(vec3(masks.w), 1.0);
// cogl_color_out = vec4(vec3(shower), 1.0);
// cogl_color_out = vec4(vec3(streaks), 1.0);
// cogl_color_out = vec4(vec3(atoms), 1.0);
`;
this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT, declarations, code, true);
this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT, decl, code, true);
}
});
}