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Code Issues Releases Wiki Activity

added Type Jam puzzle app for review (#1554)

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* added Type Jam puzzle app for review

* pr round 2 prep

* updated ci scripts for varfont_shader_puzzle

* resolved unused and minor variable naming issues

* rotator tiles row and col are final vars now

* removed unused import and print from production

* made constructors const where needed

* pages_flow export refactored to directly come from that file

* removed old api commented out section from FragmentShaded

* updated pubspec yaml to correct project name

* dart min version updated; removed unnecessary commented out dependencies from pubspec.yaml

* updated pubspec.yaml min flutter version to ensure FragmentShader support

* added/edited comments for explanation, esp on var fonts; removed obsolete comments

* trailing newline added to pubspec.yaml eof
This commit is contained in:
Brian James
2023-01-12 19:40:47 -05:00
committed by GitHub
parent bea2ef6c66
commit 057728c5d2
164 changed files with 8214 additions and 0 deletions
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38
experimental/varfont_shader_puzzle/shaders/wavy_circ.frag Normal file
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// Copyright 2023 The Flutter team. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#define PI 3.1415926538
layout(location = 0) uniform float uTime;
layout(location = 1) uniform vec2 uSize;
layout(location = 3) uniform float uDampener;
layout(location = 0) out vec4 fragColor;
layout(location = 2) uniform sampler2D uTexture;
void main()
{
float piTime = uTime * PI * 2;
vec2 texCoord = gl_FragCoord.xy / uSize.xy;
float maxMag = 0.4;
float minMag = 0.3;
float numRings = 6.0;
float ringVel = 4.0;
float numPeakShifts = 8.0;
float peakShiftVel = -3.0;
float unitX = (texCoord.x - 0.5) * 2;
float unitY = (texCoord.y - 0.5) * 2;
float dist = distance(vec2(0, 0), vec2(unitX, unitY));
float theta = atan(unitY, unitX) + PI; // add PI for atan2 values -PI to PI
float thisMag = (sin(theta * numRings - piTime * ringVel) + 1) * 0.5 * (cos(theta * numPeakShifts - piTime * peakShiftVel) + 1) * 0.5 * (maxMag - minMag) + minMag;
float unitSrcDist = dist - dist * thisMag;
float unitSrcX = cos(theta) * unitSrcDist;
float unitSrcY = sin(theta) * unitSrcDist;
float texSrcX = unitSrcX * 0.5 + 0.5;
float texSrcY = unitSrcY * 0.5 + 0.5;
fragColor = texture(uTexture, vec2(texSrcX, texSrcY));
}