WebGL - Is gl.useProgram () an expensive call?

Question

I am wondering if it is worth using this API method to load a shader program or not calling? I am considering making this call for an object in my 3D scene.

gl.useProgram(shaderProgram);

thank

Answer 1

• this says it's better to use glUseProgramthan for glAttachShader+glLinkProgram
• this says shader change is always difficult, but the glUseProgramleast difficult
• this says it is usually effective
• it says that moderate and careful use will not become a bottleneck
• .

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useProgram . -, , linkProgram compileShader.

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