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[require]
GLSL >= 1.40
[fragment shader]
#version 140
#extension GL_ARB_fragment_coord_conventions : require
layout(origin_upper_left) in vec4 gl_FragCoord;
out vec4 sk_FragColor;
uniform vec2 ubaseFrequency_Stage1_c0_c0_c0_c0;
uniform vec2 uDstTextureUpperLeft_Stage2;
uniform vec2 uDstTextureCoordScale_Stage2;
uniform sampler2D uTextureSampler_0_Stage1;
uniform sampler2D uTextureSampler_1_Stage1;
uniform sampler2D uDstTextureSampler_Stage2;
noperspective in vec2 vEllipseOffsets_Stage0;
noperspective in vec4 vEllipseRadii_Stage0;
noperspective in vec4 vinColor_Stage0;
noperspective in vec2 vTransformedCoords_0_Stage0;
float perlinnoise_Stage1_c0_c0_c0_c0(float chanCoord, vec2 noiseVec) {
vec4 floorVal;
floorVal.xy = floor(noiseVec);
floorVal.zw = floorVal.xy + vec2(1.0);
vec2 fractVal = fract(noiseVec);
vec2 noiseSmooth = (fractVal * fractVal) * (vec2(3.0) - vec2(2.0) * fractVal);
floorVal = fract(floor(mod(floorVal, 256.0)) / vec4(256.0));
vec2 latticeIdx;
latticeIdx.x = texture(uTextureSampler_0_Stage1, vec2(floorVal.x, 0.5)).x;
latticeIdx.y = texture(uTextureSampler_0_Stage1, vec2(floorVal.z, 0.5)).x;
vec4 bcoords = fract(latticeIdx.xyxy + floorVal.yyww);
vec2 uv;
vec4 lattice = texture(uTextureSampler_1_Stage1, vec2(bcoords.x, chanCoord)).zyxw;
uv.x = dot((lattice.yw + lattice.xz * vec2(0.00390625)) * vec2(2.0) - vec2(1.0), fractVal);
fractVal.x -= 1.0;
lattice = texture(uTextureSampler_1_Stage1, vec2(bcoords.y, chanCoord)).zyxw;
uv.y = dot((lattice.yw + lattice.xz * vec2(0.00390625)) * vec2(2.0) - vec2(1.0), fractVal);
vec2 ab;
ab.x = mix(uv.x, uv.y, noiseSmooth.x);
fractVal.y -= 1.0;
lattice = texture(uTextureSampler_1_Stage1, vec2(bcoords.w, chanCoord)).zyxw;
uv.y = dot((lattice.yw + lattice.xz * vec2(0.00390625)) * vec2(2.0) - vec2(1.0), fractVal);
fractVal.x += 1.0;
lattice = texture(uTextureSampler_1_Stage1, vec2(bcoords.z, chanCoord)).zyxw;
uv.x = dot((lattice.yw + lattice.xz * vec2(0.00390625)) * vec2(2.0) - vec2(1.0), fractVal);
ab.y = mix(uv.x, uv.y, noiseSmooth.x);
return mix(ab.x, ab.y, noiseSmooth.y);
}
vec4 PerlinNoise_Stage1_c0_c0_c0_c0(vec4 _input) {
vec4 _output;
vec2 noiseVec = floor(vTransformedCoords_0_Stage0) * ubaseFrequency_Stage1_c0_c0_c0_c0;
_output = vec4(0.0);
float ratio = 1.0;
for (int octave = 0;octave < 9; ++octave) {
_output += abs(vec4(perlinnoise_Stage1_c0_c0_c0_c0(0.125, noiseVec), perlinnoise_Stage1_c0_c0_c0_c0(0.375, noiseVec), perlinnoise_Stage1_c0_c0_c0_c0(0.625, noiseVec), perlinnoise_Stage1_c0_c0_c0_c0(0.875, noiseVec))) * ratio;
noiseVec *= vec2(2.0);
ratio *= 0.5;
}
_output = clamp(_output, 0.0, 1.0);
_output = vec4(_output.xyz * _output.www, _output.w);
return _output;
}
vec4 blend_src_in(vec4 src, vec4 dst) {
return src * dst.w;
}
vec4 blend_dst_in(vec4 src, vec4 dst) {
return blend_src_in(dst, src);
}
vec4 ComposeOne_Stage1_c0_c0(vec4 _input) {
vec4 _output;
_output = blend_dst_in(_input, PerlinNoise_Stage1_c0_c0_c0_c0(vec4(1.0)));
return _output;
}
vec4 blend_src(vec4 src, vec4 dst) {
return src;
}
void main() {
vec4 outputCoverage_Stage0;
{
vec2 offset = vEllipseOffsets_Stage0;
offset *= vEllipseRadii_Stage0.xy;
float test = dot(offset, offset) - 1.0;
vec2 grad = (2.0 * offset) * vEllipseRadii_Stage0.xy;
float grad_dot = dot(grad, grad);
grad_dot = max(grad_dot, 1.1754999560161448e-38);
float invlen = inversesqrt(grad_dot);
float edgeAlpha = clamp(0.5 - test * invlen, 0.0, 1.0);
offset = vEllipseOffsets_Stage0 * vEllipseRadii_Stage0.zw;
test = dot(offset, offset) - 1.0;
grad = (2.0 * offset) * vEllipseRadii_Stage0.zw;
grad_dot = dot(grad, grad);
invlen = inversesqrt(grad_dot);
edgeAlpha *= clamp(0.5 + test * invlen, 0.0, 1.0);
outputCoverage_Stage0 = vec4(edgeAlpha);
}
vec4 output_Stage1;
{
output_Stage1 = ComposeOne_Stage1_c0_c0(vec4(1.0));
}
{
if (all(lessThanEqual(outputCoverage_Stage0.xyz, vec3(0.0)))) {
discard;
}
vec2 _dstTexCoord = (gl_FragCoord.xy - uDstTextureUpperLeft_Stage2) * uDstTextureCoordScale_Stage2;
_dstTexCoord.y = 1.0 - _dstTexCoord.y;
vec4 _dstColor = texture(uDstTextureSampler_Stage2, _dstTexCoord);
sk_FragColor = blend_src(output_Stage1, _dstColor);
sk_FragColor = outputCoverage_Stage0 * sk_FragColor + (vec4(1.0) - outputCoverage_Stage0) * _dstColor;
}
}
[vertex shader]
#version 140
uniform vec4 sk_RTAdjust;
uniform mat3 uCoordTransformMatrix_0_Stage0;
in vec2 inPosition;
in vec4 inColor;
in vec2 inEllipseOffset;
in vec4 inEllipseRadii;
noperspective out vec2 vEllipseOffsets_Stage0;
noperspective out vec4 vEllipseRadii_Stage0;
noperspective out vec4 vinColor_Stage0;
noperspective out vec2 vTransformedCoords_0_Stage0;
void main() {
vEllipseOffsets_Stage0 = inEllipseOffset;
vEllipseRadii_Stage0 = inEllipseRadii;
vinColor_Stage0 = inColor;
vec2 pos2 = inPosition;
vTransformedCoords_0_Stage0 = (uCoordTransformMatrix_0_Stage0 * vec3(inPosition, 1.0)).xy;
gl_Position = vec4(pos2.x, pos2.y, 0.0, 1.0);
gl_Position = vec4(gl_Position.xy * sk_RTAdjust.xz + gl_Position.ww * sk_RTAdjust.yw, 0.0, gl_Position.w);
}
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