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Adding "glint", the shapes that appear on top of the glyphs in the Resurrections opening titles.

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Rezmason
2022-09-17 01:24:23 -07:00
parent 6a3d38e965
commit 9c2d6d7ed8
17 changed files with 122 additions and 39 deletions
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29
shaders/glsl/rainPass.frag.glsl
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@@ -6,7 +6,7 @@ precision lowp float;
uniform sampler2D raindropState, symbolState, effectState;
uniform float numColumns, numRows;
uniform sampler2D glyphTex;
uniform sampler2D glyphTex, glintTex;
uniform float glyphHeightToWidth, glyphSequenceLength, glyphEdgeCrop;
uniform float baseContrast, baseBrightness;
uniform float brightnessOverride, brightnessThreshold;
@@ -16,7 +16,7 @@ uniform float slantScale;
uniform bool isPolar;
uniform bool showDebugView;
uniform bool volumetric;
uniform bool isolateCursor;
uniform bool isolateCursor, isolateGlint;
varying vec2 vUV;
varying vec4 vRaindrop, vSymbol, vEffect;
@@ -87,7 +87,7 @@ vec2 getSymbolUV(float index) {
return vec2(symbolX, symbolY);
}
float getSymbol(vec2 uv, float index) {
vec2 getSymbol(vec2 uv, float index) {
// resolve UV to cropped position of glyph in MSDF texture
uv = fract(uv * vec2(numColumns, numRows));
uv -= 0.5;
@@ -96,9 +96,20 @@ float getSymbol(vec2 uv, float index) {
uv = (uv + getSymbolUV(index)) / glyphTextureGridSize;
// MSDF: calculate brightness of fragment based on distance to shape
vec3 dist = texture2D(glyphTex, uv).rgb;
float sigDist = median3(dist) - 0.5;
return clamp(sigDist / fwidth(sigDist) + 0.5, 0., 1.);
vec2 symbol;
{
vec3 dist = texture2D(glyphTex, uv).rgb;
float sigDist = median3(dist) - 0.5;
symbol.r = clamp(sigDist / fwidth(sigDist) + 0.5, 0., 1.);
}
if (isolateGlint) {
vec3 dist = texture2D(glintTex, uv).rgb;
float sigDist = median3(dist) - 0.5;
symbol.g = clamp(sigDist / fwidth(sigDist) + 0.5, 0., 1.);
}
return symbol;
}
void main() {
@@ -111,7 +122,7 @@ void main() {
vec4 effectData = volumetric ? vEffect : texture2D( effectState, uv);
vec2 brightness = getBrightness(raindropData.r, raindropData.g, effectData.r, effectData.g);
float symbol = getSymbol(uv, symbolData.r);
vec2 symbol = getSymbol(uv, symbolData.r);
if (showDebugView) {
gl_FragColor = vec4(
@@ -121,10 +132,10 @@ void main() {
1. - (raindropData.r * 3.),
1. - (raindropData.r * 8.)
) * (1. - raindropData.g)
) * symbol,
) * symbol.r,
1.
);
} else {
gl_FragColor = vec4(brightness * symbol, 0., 0.);
gl_FragColor = vec4(brightness * symbol.r, brightness.r * symbol.g, 0.);
}
}