blob: ff7654e70258bc34893fcf898b2563787c562c73 [file] [log] [blame]
#version 100
#extension GL_OES_standard_derivatives : require
precision mediump float;
precision mediump sampler2D;
varying highp vec3 vEllipseOffsets0_Stage0;
varying highp vec2 vEllipseOffsets1_Stage0;
varying mediump vec4 vinColor_Stage0;
void main() {
mediump vec4 outputColor_Stage0;
mediump vec4 outputCoverage_Stage0;
{
outputColor_Stage0 = vinColor_Stage0;
highp vec2 scaledOffset = vEllipseOffsets0_Stage0.xy;
highp float test = dot(scaledOffset, scaledOffset) - 1.0;
highp vec2 duvdx = dFdx(vEllipseOffsets0_Stage0.xy);
highp vec2 duvdy = -dFdy(vEllipseOffsets0_Stage0.xy);
highp vec2 grad = vec2(vEllipseOffsets0_Stage0.x * duvdx.x + vEllipseOffsets0_Stage0.y * duvdx.y, vEllipseOffsets0_Stage0.x * duvdy.x + vEllipseOffsets0_Stage0.y * duvdy.y);
grad *= vEllipseOffsets0_Stage0.z;
highp float grad_dot = 4.0 * dot(grad, grad);
grad_dot = max(grad_dot, 6.103600026108325e-05);
highp float invlen = inversesqrt(grad_dot);
invlen *= vEllipseOffsets0_Stage0.z;
highp float edgeAlpha = clamp(0.5 - test * invlen, 0.0, 1.0);
outputCoverage_Stage0 = vec4(edgeAlpha);
}
{
gl_FragColor = outputColor_Stage0 * outputCoverage_Stage0;
}
}