[OsgText] fix osgText frag texture2DLod function missing error on Linux/MESA #1330

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TLeaves wants to merge 1 commit into openscenegraph:master from TLeaves:master

TLeaves commented Aug 9, 2024

Mesa considers texture2DLod to be a GLSL 1.3+ function. We should explicitly declared the extension when GLSL version is under 1.3.

See trzy/Supermodel#4


          [Fix] fix osgText frag texture2DLod extension error.

665c702

For SDF Text.

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