blob: 894f33a45b17ed3f7acd61dbfda44decf3795845 [file] [log] [blame]
#version 100
#extension GL_OES_standard_derivatives : require
precision mediump float;
precision mediump sampler2D;
uniform mediump vec4 uColor_Stage0;
uniform mediump float uCoverage_Stage0;
varying mediump vec4 vHairQuadEdge_Stage0;
void main() {
mediump vec4 outputColor_Stage0;
mediump vec4 outputCoverage_Stage0;
{
outputColor_Stage0 = uColor_Stage0;
mediump float edgeAlpha;
mediump vec2 duvdx = dFdx(vHairQuadEdge_Stage0.xy);
mediump vec2 duvdy = -dFdy(vHairQuadEdge_Stage0.xy);
mediump vec2 gF = vec2((2.0 * vHairQuadEdge_Stage0.x) * duvdx.x - duvdx.y, (2.0 * vHairQuadEdge_Stage0.x) * duvdy.x - duvdy.y);
edgeAlpha = vHairQuadEdge_Stage0.x * vHairQuadEdge_Stage0.x - vHairQuadEdge_Stage0.y;
edgeAlpha = sqrt((edgeAlpha * edgeAlpha) / dot(gF, gF));
edgeAlpha = max(1.0 - edgeAlpha, 0.0);
outputCoverage_Stage0 = vec4(uCoverage_Stage0 * edgeAlpha);
}
{
gl_FragColor = outputColor_Stage0 * outputCoverage_Stage0;
}
}