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🚚 Move shader code to GLSL files

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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
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src/EnergizeA.js
+4 -88
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@@ -132,7 +132,6 @@ var EnergizeA = class EnergizeA {
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
@@ -164,94 +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()}
${shaderSnippets.edgeMask()}
const decl =
utils.loadGLSLResource(`/shaders/${EnergizeA.getNick()}-declarations.glsl`);
const code = utils.loadGLSLResource(`/shaders/${EnergizeA.getNick()}.glsl`);
uniform vec3 uColor;
uniform float uScale;
const float FADE_IN_TIME = 0.3;
const float FADE_OUT_TIME = 0.6;
const float HEART_FADE_TIME = 0.3;
const float EDGE_FADE_WIDTH = 50;
// This method returns two values:
// result.x: A mask for the particles.
// result.y: The opacity of the fading window.
vec2 getMasks() {
float fadeInProgress = clamp(uProgress/FADE_IN_TIME, 0, 1);
float fadeOutProgress = clamp((uProgress-FADE_IN_TIME)/FADE_OUT_TIME, 0, 1);
float heartProgress = clamp((uProgress-(1.0-HEART_FADE_TIME))/HEART_FADE_TIME, 0, 1);
// Compute mask for the "atom" particles.
float dist = length(cogl_tex_coord_in[0].st - 0.5) * 4.0;
float atomMask = smoothstep(0.0, 1.0, (fadeInProgress * 2.0 - dist + 1.0));
atomMask *= fadeInProgress;
atomMask *= smoothstep(1.0, 0.0, fadeOutProgress);
// Fade-out the masks at the window edges.
float edgeFade = getAbsoluteEdgeMask(EDGE_FADE_WIDTH);
atomMask *= edgeFade;
float heartMask = getRelativeEdgeMask(0.5);
heartMask = 3.0 * pow(heartMask, 5);
heartMask *= fadeOutProgress;
heartMask *= 1.0 - heartProgress;
atomMask = clamp(heartMask+atomMask, 0, 1);
// Compute fading window opacity.
float windowMask = pow(1.0 - fadeOutProgress, 2.0);
if (uForOpening) {
windowMask = 1.0 - windowMask;
}
return vec2(atomMask, windowMask);
}
`;
const code = `
vec2 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, 0.2 * masks.y + 0.8);
cogl_color_out.a = windowColor.a * masks.y;
vec2 scaledUV = (cogl_tex_coord_in[0].st-0.5) * (1.0 + 0.1*uProgress);
scaledUV /= uScale;
// Add molecule particles.
vec2 uv = scaledUV + vec2(0, 0.1*uTime);
uv *= 0.010598 * vec2(0.5*uSize.x, uSize.y);
float particles = 0.2 * pow((simplex3D(vec3(uv, 0.0*uTime))), 3.0);
// Add more molecule particles.
for (int i=1; i<=3;++i) {
vec2 uv = scaledUV * 0.12154 / pow(1.5, i) * uSize;
float atoms = simplex3D(vec3(uv, 2.0*uTime/i));
particles += 0.5 * pow(0.2 * (1.0 / (1.0 - atoms)-1.0), 2);
}
cogl_color_out.rgb += uColor * particles * masks.x;
cogl_color_out.a += particles * masks.x;
// These are pretty useful for understanding how this works.
// cogl_color_out = vec4(masks, 0.0, 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(particles), 1.0);
`;
this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT, declarations, code, true);
this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT, decl, code, true);
}
});
}