1cb93a386Sopenharmony_ci/*#pragma settings ShaderDerivativeExtensionString*/
2cb93a386Sopenharmony_ci
3cb93a386Sopenharmony_civoid main() {
4cb93a386Sopenharmony_ci    sk_FragColor.x = half(dFdx(1));
5cb93a386Sopenharmony_ci}
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