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Show error dialog when OpenGL is unsupported (GDI Generic / OpenGL < 2.0) - #3205
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…L < 2.0) Detect the Windows software renderer (GDI Generic, OpenGL 1.1) early during GL context initialization and show a clear error dialog rather than crashing with obscure null-pointer or native exceptions downstream. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
GLEventListeneron theGLWindowbefore the viz engine registers its own listener, so it fires first during GL context initializationGDI Genericrenderer or OpenGL version < 2.0, both of which indicate the Windows software fallback (no GPU driver / RDP session)NotifyDescriptoron the EDT explaining the issue and pointing the user to install a graphics driverAtomicBooleanto show the warning only once per JVM sessionFixes GEPHI-5JK, GEPHI-5JM, GEPHI-5HQ (all cascades from this root cause).
Test plan
🤖 Generated with Claude Code