Restore CGL-to-GLFW fallback on macOS - #3507
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sylvesterkaczmarek wants to merge 1 commit into
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Summary
On current
main, Darwin always imports the CGL backend for classic rendering. If Apple's OpenGL framework does not exposeCGLSetCurrentContext, that import fails even when the default backend selection could use GLFW.This restores fallback only for default backend selection: explicit
MUJOCO_GL=cglstill surfaces the CGL failure, while explicitMUJOCO_GL=glfwuses GLFW directly.Context
This revives the substance of closed, unmerged PRs #3312/#3313 with stricter explicit-backend semantics.
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