Enable trilinear texture filtering to fix the ugly line artifacts of the hard mipmap transitions when zooming in:
rglGraphics_context::set_sampler_state() at 0x081806d0:
08180910 c7 44 24 08 01 27 00 00 MOV dword ptr [ESP + local_24],0x2701 # GL_LINEAR_MIPMAP_NEAREST (0x2701) -> GL_LINEAR_MIPMAP_LINEAR (0x2703)
08180920 c7 44 24 08 01 27 00 00 MOV dword ptr [ESP + local_24],0x2701 # GL_LINEAR_MIPMAP_NEAREST (0x2701) -> GL_LINEAR_MIPMAP_LINEAR (0x2703)
SDL_GL_DEPTH_SIZE
; Improve the depth buffer resolution/quality from 24 to 32 bits:
process_directx_call() at 0x082ec490: