29 lines
800 B
HTML
29 lines
800 B
HTML
<body>
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<p>Ensure that if a shader extension directive is specified after non-preprocessor symbols, no errors are logged.</p>
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<canvas></canvas>
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<script>
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if (window.testRunner)
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testRunner.dumpAsText();
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const fragmentShaderSource = `
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precision highp float;
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#extension GL_OES_standard_derivatives : enable
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void main() {
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gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);
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}
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`;
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const canvas = document.querySelector('canvas');
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const gl = canvas.getContext("webgl");
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gl.getExtension('OES_standard_derivatives');
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const shader = gl.createShader(gl.FRAGMENT_SHADER);
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gl.shaderSource(shader, fragmentShaderSource);
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gl.compileShader(shader);
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const success = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
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if (!success)
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console.log(gl.getShaderInfoLog(shader));
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</script>
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</body> |