✨ Fix formatting
This commit is contained in:
Simon Schneegans
+107
-126
@@ -185,53 +185,52 @@ vec3 darken(vec3 color, float fac) { return color * (1.0 - fac); }
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// color will be white.
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vec3 lighten(vec3 color, float fac) { return color + (vec3(1.0) - color) * fac; }
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//change the color based on an offset amount
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// change the color based on an offset amount
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vec3 offsetHue(vec3 color, float hueOffset) {
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// Convert RGB to HSV
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float maxC = max(max(color.r, color.g), color.b);
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float minC = min(min(color.r, color.g), color.b);
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float delta = maxC - minC;
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// Convert RGB to HSV
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float maxC = max(max(color.r, color.g), color.b);
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float minC = min(min(color.r, color.g), color.b);
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float delta = maxC - minC;
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float hue = 0.0;
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if (delta > 0.0) {
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if (maxC == color.r) {
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hue = mod((color.g - color.b) / delta, 6.0);
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} else if (maxC == color.g) {
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hue = (color.b - color.r) / delta + 2.0;
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} else {
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hue = (color.r - color.g) / delta + 4.0;
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}
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}
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hue /= 6.0;
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float saturation = (maxC > 0.0) ? (delta / maxC) : 0.0;
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float value = maxC;
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// Offset the hue
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hue = mod(hue + hueOffset, 1.0);
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// Convert HSV back to RGB
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float c = value * saturation;
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float x = c * (1.0 - abs(mod(hue * 6.0, 2.0) - 1.0));
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float m = value - c;
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vec3 rgb;
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if (hue < 1.0 / 6.0) {
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rgb = vec3(c, x, 0.0);
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} else if (hue < 2.0 / 6.0) {
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rgb = vec3(x, c, 0.0);
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} else if (hue < 3.0 / 6.0) {
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rgb = vec3(0.0, c, x);
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} else if (hue < 4.0 / 6.0) {
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rgb = vec3(0.0, x, c);
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} else if (hue < 5.0 / 6.0) {
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rgb = vec3(x, 0.0, c);
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float hue = 0.0;
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if (delta > 0.0) {
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if (maxC == color.r) {
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hue = mod((color.g - color.b) / delta, 6.0);
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} else if (maxC == color.g) {
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hue = (color.b - color.r) / delta + 2.0;
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} else {
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rgb = vec3(c, 0.0, x);
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hue = (color.r - color.g) / delta + 4.0;
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}
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}
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hue /= 6.0;
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return rgb + m;
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float saturation = (maxC > 0.0) ? (delta / maxC) : 0.0;
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float value = maxC;
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// Offset the hue
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hue = mod(hue + hueOffset, 1.0);
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// Convert HSV back to RGB
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float c = value * saturation;
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float x = c * (1.0 - abs(mod(hue * 6.0, 2.0) - 1.0));
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float m = value - c;
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vec3 rgb;
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if (hue < 1.0 / 6.0) {
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rgb = vec3(c, x, 0.0);
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} else if (hue < 2.0 / 6.0) {
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rgb = vec3(x, c, 0.0);
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} else if (hue < 3.0 / 6.0) {
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rgb = vec3(0.0, c, x);
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} else if (hue < 4.0 / 6.0) {
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rgb = vec3(0.0, x, c);
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} else if (hue < 5.0 / 6.0) {
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rgb = vec3(x, 0.0, c);
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} else {
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rgb = vec3(c, 0.0, x);
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}
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return rgb + m;
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}
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// ---------------------------------------------------------------------- easing functions
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@@ -251,119 +250,121 @@ float easeOutBack(float x, float e) {
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return p * p * ((e + 1.0) * p + e) + 1.0;
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}
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// https://easings.net/
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/*
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Easing functions define the rate of change of a parameter over time, commonly used in animations, UI transitions, and game development. They provide a way to make movements more natural or visually appealing rather than linear and mechanical. Popular categories of easing functions include:
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Easing functions define the rate of change of a parameter over time, commonly used in
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animations, UI transitions, and game development. They provide a way to make movements
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more natural or visually appealing rather than linear and mechanical. Popular categories
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of easing functions include:
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Linear: Constant speed from start to finish.
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Quadratic (Ease In, Ease Out, Ease In Out): Changes at varying rates, with smoother starts or stops.
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Cubic: Similar to quadratic but allows for even more nuanced transitions.
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Quadratic (Ease In, Ease Out, Ease In Out): Changes at varying rates, with smoother starts
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or stops. Cubic: Similar to quadratic but allows for even more nuanced transitions.
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Exponential: Drastic changes at the start or end, often used for dramatic effects.
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Bounce: Mimics a bouncing object with oscillations.
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Elastic: Simulates the behavior of a spring, with overshooting and oscillations.
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Below are text-based "graphs" of some easing functions, where the horizontal axis represents time and the vertical axis represents progress.
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Below are text-based "graphs" of some easing functions, where the horizontal axis
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represents time and the vertical axis represents progress.
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*/
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// Quadratic Easing
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// Smooth acceleration and deceleration using quadratic (t^2) curves.
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float easeInOutQuad(float t) {
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// Accelerates for the first half, decelerates for the second half.
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return t < 0.5 ? 2.0 * t * t : -1.0 + (4.0 - 2.0 * t) * t;
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// Accelerates for the first half, decelerates for the second half.
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return t < 0.5 ? 2.0 * t * t : -1.0 + (4.0 - 2.0 * t) * t;
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}
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// Cubic Easing
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// Smoother transitions compared to quadratic easing using cubic (t^3) curves.
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float easeInCubic(float t) {
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// Starts slow and accelerates as t increases.
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return t * t * t;
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// Starts slow and accelerates as t increases.
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return t * t * t;
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}
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float easeOutCubic(float t) {
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// Starts fast and decelerates as t approaches 1.0.
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float f = t - 1.0;
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return f * f * f + 1.0;
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// Starts fast and decelerates as t approaches 1.0.
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float f = t - 1.0;
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return f * f * f + 1.0;
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}
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float easeInOutCubic(float t) {
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// Combines easeIn and easeOut cubic behavior for smooth transitions.
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return t < 0.5 ? 4.0 * t * t * t : (t - 1.0) * (2.0 * t - 2.0) * (2.0 * t - 2.0) + 1.0;
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// Combines easeIn and easeOut cubic behavior for smooth transitions.
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return t < 0.5 ? 4.0 * t * t * t : (t - 1.0) * (2.0 * t - 2.0) * (2.0 * t - 2.0) + 1.0;
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}
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// Quartic Easing
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// Even smoother transitions than cubic, using quartic (t^4) curves.
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float easeInQuart(float t) {
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// Starts very slow and accelerates steeply.
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return t * t * t * t;
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// Starts very slow and accelerates steeply.
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return t * t * t * t;
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}
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float easeOutQuart(float t) {
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// Starts steeply and slows down dramatically.
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float f = t - 1.0;
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return 1.0 - f * f * f * f;
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// Starts steeply and slows down dramatically.
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float f = t - 1.0;
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return 1.0 - f * f * f * f;
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}
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float easeInOutQuart(float t) {
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// Combines easeIn and easeOut quartic behavior for very smooth transitions.
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return t < 0.5 ? 8.0 * t * t * t * t : 1.0 - 8.0 * (t - 1.0) * (t - 1.0) * (t - 1.0) * (t - 1.0);
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// Combines easeIn and easeOut quartic behavior for very smooth transitions.
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return t < 0.5 ? 8.0 * t * t * t * t
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: 1.0 - 8.0 * (t - 1.0) * (t - 1.0) * (t - 1.0) * (t - 1.0);
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}
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// Sine Easing
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// Smooth, wave-like acceleration and deceleration using sine curves.
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float easeInSine(float t) {
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// Starts very slow, following a sine wave curve.
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return 1.0 - cos((t * 3.141592653589793) / 2.0);
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// Starts very slow, following a sine wave curve.
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return 1.0 - cos((t * 3.141592653589793) / 2.0);
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}
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float easeOutSine(float t) {
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// Starts fast and slows down following a sine wave curve.
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return sin((t * 3.141592653589793) / 2.0);
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// Starts fast and slows down following a sine wave curve.
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return sin((t * 3.141592653589793) / 2.0);
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}
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float easeInOutSine(float t) {
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// Smooth start and end, mimicking half a sine wave.
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return -0.5 * (cos(3.141592653589793 * t) - 1.0);
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// Smooth start and end, mimicking half a sine wave.
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return -0.5 * (cos(3.141592653589793 * t) - 1.0);
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}
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// Exponential Easing
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// Sharp transitions with rapid acceleration and deceleration.
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float easeInExpo(float t) {
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// Very slow start, accelerates exponentially.
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return t == 0.0 ? 0.0 : pow(2.0, 10.0 * (t - 1.0));
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// Very slow start, accelerates exponentially.
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return t == 0.0 ? 0.0 : pow(2.0, 10.0 * (t - 1.0));
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}
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float easeOutExpo(float t) {
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// Starts fast and slows down exponentially.
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return t == 1.0 ? 1.0 : 1.0 - pow(2.0, -10.0 * t);
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// Starts fast and slows down exponentially.
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return t == 1.0 ? 1.0 : 1.0 - pow(2.0, -10.0 * t);
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}
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float easeInOutExpo(float t) {
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// Combines easeIn and easeOut exponential for sharp transitions.
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if (t == 0.0) return 0.0;
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if (t == 1.0) return 1.0;
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return t < 0.5 ? 0.5 * pow(2.0, 20.0 * t - 10.0) : 1.0 - 0.5 * pow(2.0, -20.0 * t + 10.0);
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// Combines easeIn and easeOut exponential for sharp transitions.
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if (t == 0.0) return 0.0;
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if (t == 1.0) return 1.0;
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return t < 0.5 ? 0.5 * pow(2.0, 20.0 * t - 10.0)
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: 1.0 - 0.5 * pow(2.0, -20.0 * t + 10.0);
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}
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// Back Easing
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// Creates an overshooting effect for more dynamic animations.
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float easeInOutBack(float t) {
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// Uses constants to define the overshooting magnitude.
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const float c1 = 1.70158;
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const float c2 = c1 * 1.525;
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return t < 0.5
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? (pow(2.0 * t, 2.0) * ((c2 + 1.0) * 2.0 * t - c2)) / 2.0
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: (pow(2.0 * t - 2.0, 2.0) * ((c2 + 1.0) * (t * 2.0 - 2.0) + c2) + 2.0) / 2.0;
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// Uses constants to define the overshooting magnitude.
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const float c1 = 1.70158;
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const float c2 = c1 * 1.525;
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return t < 0.5
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? (pow(2.0 * t, 2.0) * ((c2 + 1.0) * 2.0 * t - c2)) / 2.0
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: (pow(2.0 * t - 2.0, 2.0) * ((c2 + 1.0) * (t * 2.0 - 2.0) + c2) + 2.0) / 2.0;
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}
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// --------------------------------------------------------------------- edge mask helpers
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// This method returns a mask which smoothly transitions towards zero when approaching
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@@ -387,7 +388,7 @@ float getEdgeMask(vec2 uv, vec2 maxUV, float fadeWidth) {
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// the fade zone is given in pixels. This uses the standard uniforms uSize and uPadding.
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// This means that the fading zone is not actually at the actors boundaries but at the
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// position of the window border in the texture.
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// The offset paramter controls whether the fading is placed inside the window borders
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// The offset parameter controls whether the fading is placed inside the window borders
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// (offset = 0), ontop the window borders (offset = 0.5) or outside the window borders
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// (offset = 1).
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float getAbsoluteEdgeMask(float fadePixels, float offset) {
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@@ -428,19 +429,13 @@ float getWinding(vec2 a, vec2 b) { return cross(vec3(a, 0.0), vec3(b, 0.0)).z; }
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// Rotates the given 2D vector a clockwise by the angle alpha (given in radians).
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vec2 rotate(vec2 a, float angle) {
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return vec2(
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a.x * cos(angle) - a.y * sin(angle),
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a.x * sin(angle) + a.y * cos(angle)
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);
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return vec2(a.x * cos(angle) - a.y * sin(angle), a.x * sin(angle) + a.y * cos(angle));
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}
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//rotates a given 2d vector, around a given center (angle is in radians)
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vec2 rotate(vec2 a, float angle, vec2 center)
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{
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return vec2(
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cos(angle) * (a.x - center.x) + sin(angle) * (a.y - center.y) + center.x,
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cos(angle) * (a.y - center.y) - sin(angle) * (a.x - center.x) + center.y
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);
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// rotates a given 2d vector, around a given center (angle is in radians)
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vec2 rotate(vec2 a, float angle, vec2 center) {
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return vec2(cos(angle) * (a.x - center.x) + sin(angle) * (a.y - center.y) + center.x,
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cos(angle) * (a.y - center.y) - sin(angle) * (a.x - center.x) + center.y);
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}
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// --------------------------------------------------------------------------------- noise
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@@ -645,10 +640,8 @@ float simplex3DFractal(vec3 m) {
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0.1333333 * simplex3D(4.0 * m * rot3) + 0.0666667 * simplex3D(8.0 * m);
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}
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// --------------------------------------------------------------------------------- remap
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/*
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These functions remap a given value from one range to another.
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The remap operation is particularly useful in shader programming
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@@ -671,42 +664,30 @@ This ensures a linear transformation from the old range to the new range.
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// Maps a float value from one range [oldMin, oldMax] to another range [newMin, newMax].
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// This is useful for normalizing or scaling scalar values to fit within a desired range.
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float remap(float value, float oldMin, float oldMax, float newMin, float newMax) {
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return clamp(
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newMin + (value - oldMin) * (newMax - newMin) / (oldMax - oldMin),
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newMin,
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newMax
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);
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return clamp(newMin + (value - oldMin) * (newMax - newMin) / (oldMax - oldMin), newMin,
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newMax);
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}
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// Remap for vec2
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// Maps a 2D vector (vec2) from one range [oldMin, oldMax] to another range [newMin, newMax].
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// Each component of the vec2 is individually scaled and transformed.
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// Maps a 2D vector (vec2) from one range [oldMin, oldMax] to another range [newMin,
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// newMax]. Each component of the vec2 is individually scaled and transformed.
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vec2 remap(vec2 value, vec2 oldMin, vec2 oldMax, vec2 newMin, vec2 newMax) {
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return clamp(
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newMin + (value - oldMin) * (newMax - newMin) / (oldMax - oldMin),
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newMin,
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newMax
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);
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return clamp(newMin + (value - oldMin) * (newMax - newMin) / (oldMax - oldMin), newMin,
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newMax);
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}
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// Remap for vec3
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// Maps a 3D vector (vec3) from one range [oldMin, oldMax] to another range [newMin, newMax].
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// Each component of the vec3 is individually scaled and transformed.
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// Maps a 3D vector (vec3) from one range [oldMin, oldMax] to another range [newMin,
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// newMax]. Each component of the vec3 is individually scaled and transformed.
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vec3 remap(vec3 value, vec3 oldMin, vec3 oldMax, vec3 newMin, vec3 newMax) {
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return clamp(
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newMin + (value - oldMin) * (newMax - newMin) / (oldMax - oldMin),
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newMin,
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newMax
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);
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return clamp(newMin + (value - oldMin) * (newMax - newMin) / (oldMax - oldMin), newMin,
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newMax);
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}
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// Remap for vec4
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// Maps a 4D vector (vec4) from one range [oldMin, oldMax] to another range [newMin, newMax].
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// Each component of the vec4 is individually scaled and transformed.
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// Maps a 4D vector (vec4) from one range [oldMin, oldMax] to another range [newMin,
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// newMax]. Each component of the vec4 is individually scaled and transformed.
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vec4 remap(vec4 value, vec4 oldMin, vec4 oldMax, vec4 newMin, vec4 newMax) {
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return clamp(
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newMin + (value - oldMin) * (newMax - newMin) / (oldMax - oldMin),
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newMin,
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newMax
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);
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return clamp(newMin + (value - oldMin) * (newMax - newMin) / (oldMax - oldMin), newMin,
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newMax);
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}
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