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CauldronDevelopmentLLC / CAMotics

Open-Source Simulation & Computer Aided Machining - A 3-axis CNC GCode simulator
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Building on Win32 #331

Closed mkmantis closed 3 years ago

mkmantis commented 3 years ago

I am trying to follow /doc/Windows_Build.md I have successfully compiled v8 and cbang, or at least I think I have. Building and packaging of CAMotics repository goes with warnings on python side, but msvc manages to produce binaries. However, launching new camotics.exe leads to a message:

OpenGL Error

Failed to load OpenGL 3D graphics! CAMotics requires OpenGL ES 2.0 or newer. You may need to upgrade your graphics driver.

Additionally, no icons are drawn in main menu. Build logs have a lot of warnings "cl : Command line warning D9002 : ignoring unknown option '/Ob3'" It seems, CAMotics/win32 is meant to be built with visual studio 2019, since that flag was introduced there.

@jcoffland, would you kindly update versions info in Windows_Build.md?

mkmantis commented 3 years ago

Digging further to find out what prevented GL to initialize, I found these exceptions:

No precision specified for (float)

and then this article about openGL ES shader precision: https://stackoverflow.com/questions/28540290/why-it-is-necessary-to-set-precision-for-the-fragment-shader

Adding

precision mediump float;

to phong.frag solved my graphics problems and I can run CAMotics just fine now. Missing icons issue seems to come from my experiments trying to run the title, and was fixed with reinstalling using freshly-built package.

Bottom line is: it is completely possible to build using instructions in Windows_Build.md and no update is necessary. Sorry for bothering you.

jcoffland commented 3 years ago

I added that to the code. Thanks!