blob: dc1302988943d82077410289abb6b420310a54ee [file] [log] [blame]
#version 100
uniform highp float u_skRTHeight;
precision mediump float;
uniform vec4 uTexDom_Stage1_c0;
uniform highp vec4 uellipse_Stage2;
uniform highp sampler2D uTextureSampler_0_Stage1;
varying mediump vec4 vcolor_Stage0;
varying highp vec2 vTransformedCoords_0_Stage0;
void main() {
highp vec2 _sktmpCoord = gl_FragCoord.xy;
highp vec4 sk_FragCoord = vec4(_sktmpCoord.x, u_skRTHeight - _sktmpCoord.y, 1.0, 1.0);
vec4 outputColor_Stage0;
{
outputColor_Stage0 = vcolor_Stage0;
}
vec4 output_Stage1;
{
vec4 child;
{
child = texture2D(uTextureSampler_0_Stage1, clamp(vTransformedCoords_0_Stage0, uTexDom_Stage1_c0.xy, uTexDom_Stage1_c0.zw));
}
output_Stage1 = child * outputColor_Stage0.w;
}
vec4 output_Stage2;
{
vec2 d = sk_FragCoord.xy - uellipse_Stage2.xy;
vec2 Z = d * uellipse_Stage2.zw;
float implicit = dot(Z, d) - 1.0;
float grad_dot = 4.0 * dot(Z, Z);
grad_dot = max(grad_dot, 0.0001);
float approx_dist = implicit * inversesqrt(grad_dot);
float alpha;
{
alpha = clamp(0.5 - approx_dist, 0.0, 1.0);
}
output_Stage2 = vec4(alpha);
}
{
gl_FragColor = output_Stage1 * output_Stage2;
}
}