Shader: Multiple views of the same shader render the entire shader again #392

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Description

The addition of the prepare_render() method results in shaders rendering every render() call, instead of only once after a tick(). This means that having Studio Mode enabled, a Filter dialog open, or the source settings open, all cause additional invocations of the same exact shader. This is an unwanted extra cost and must be avoided.

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System Information

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• Software Version: master
• Operating System: Windows
• Kernel Version: 2004
• CPU: AMD Zen2
• GPU: Nvidia RTX 3xxx Series
• RAM: 64GB