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Re: GL4ES: another OpenGL over OpenGLES2 emulation - some tech. info and porting progress

Subject: Re: GL4ES: another OpenGL over OpenGLES2 emulation - some tech. info and porting progress
by thellier on 2019/9/13 13:13:53

@kas1e
>not the VBO creation/handling it seems

Are you sure ?
(When I coded Wazp3D57 with Nova rendering) I have tried differents methods for updating a VBO but it seems to be slow

Perhaps having a patched MiniGL that will update (say) 11 times the VBO will allow to know how much time a VBO update is REALLY during in a REAL program
(delta time / 10)

I mean when I was testing Cow3D on Wazp3D57-> Nova it was (say) 80 % of a real waRp3D (massive VBO update but one time) so bandwith seems +- ok

But when I was testing Quake2 (real life test) it was 1-2 FPS ... weird

An other thing:
Also when I was testing a simple raymarching test i found that Nova GLSL seems to have very strange bugs: I mean all is fine when GLSL code is compiled but strange artefacts appears like the GLSL code was computing badly at some pixels (like a rounding fpu bug)in frag shader










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