Older GPUs and OpenGL 4.1 about mosaic HOT 2 CLOSED

Well, it would easy to fix, we have that line in the main.cpp and in other 3 files, the ones that creates external windows, OutputWindow.cpp ( windowing/output window ), ProjectionMapping.cpp ( windowing/projection mapping ) and moTimeline.cpp ( gui/timeline ), then if you look at the shaders packed with Mosaic, they are all written in glsl 150, so compatible starting from OpenGL version 3.2

https://github.com/mattdesl/lwjgl-basics/wiki/GLSL-Versions

I think it's an easy issue to fix, just changing the above files to setGLVersion(3,2) should work

from mosaic.

Ok, I'll make it a #define MO_GL_VERSION_MAJOR & MINOR to make it easier to change on the fly, as custom shaders might need to use more advanced GL versions in some use cases. Defaulted to 3.2 sounds reasonable for supporting older machines (1.3% of the windows game market), even though it concerns the oldest (&cheaper) Intel HD GPUs.
No Rpi support but that might run better with GLES3 shaders anyways.

from mosaic.