weston/libweston
Pekka Paalanen 391f513c36 gl-renderer: fragment shader precision to high
Always when supported, make the fragment shader default floating point
precision high. The medium precision is roughly like half-floats, which
can be surprisingly bad. High precision does not reach even normal
32-bit float precision (by specification), but it's better. GL ES
implementations are allowed to exceed the minimum precision requirements
given in the specification.

This is an advance attempt to avoid nasty surprises from poor shader
precision.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2021-06-21 14:36:33 +00:00
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