What's mean High quality in shaders?

[Anton111111]

What's mean High quality in shaders? What does this parameter affect and when should it be turned on and when off?

[MorrisRH]

I assume you're referring to the HIGH_QUALITY define in the AVProVideo-VR-InsideSphere... set of shaders. When enabled a more precise calculation is performed to work out the texture coordinate for the fragment being rendered. This improves the quality of the output at the cost of being a much more expensive calculation than using the standard interpolators for generating the texture coordinate.

[Anton111111]

Thanks