opengl3 fails in v1.74 - Githubissues

ocornut / imgui

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

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opengl3 fails in v1.74 #2907

Closed sonoro1234 closed 4 years ago

sonoro1234 commented 4 years ago

After cimgui generation from v1.74, LuaJIT-ImGui fails in opengl3 implementations, either with glfw or sdl

glfw and opengl2 opengl2

glfw and opengl3 opengl3

The same happens building example_glfw_opengl3 from ImGui opengl3impl

ocornut commented 4 years ago

I can't really repro.

Can you first verify if this is happening with e.g master 1.73 or earlier versions ?
Apart from better detection of GL context version to avoid calling glDrawElementsBaseVertex () pre 3.2, nothing has nothing since May.
Update your video card drivers. OpenGL drivers are a minefield.

sonoro1234 commented 4 years ago

When I checked that it was happening with earlier imgui versions, I realized that my double video card(ATI and Radeon) was setted to the less performant one. Changing it to Radeon all got solved.

What I still dont understand is that previously, when setting the less performant video card there was a complain about not being able to create gl context but now it did not happened!!