out vec4 sk_FragColor; uniform vec4 colorGreen; void setGreen_vh4(inout vec4 c) { c.y = 1.0; } void setAlpha_vh4(inout vec4 c) { c.w = 1.0; return; } void main() { vec4 color = vec4(0.0); sk_FragColor = ((setGreen_vh4(color), setAlpha_vh4(color)), color); return; }