I had a first look at the OpenGL demo.
Looks and feels terrific!
On simple models fps are 60, which is good.
Complex models naturally draw slower.
Here's a small experiment to show
that having setup and moving initialization
there from the main loop, improves performance:
fps 60 vs 9 (see fragment below).
Setup mechanism can be done in the utility code,
and user code would optionally implement a "setup"
verb, which for exampled could be called from gsinit.
or at least gsinit could return a boolean to indicate,
that it's a first time after context has been created.
Here, due to reusal of context, two areas were
able to move to setup: fonts (lists) and light.
Another area may be geometry lists to move
to the setup. I will look further.
NB. ===================================================
NB. Font demo
NB. ...
FIRST=: 1
setup=: 3 : 0
('arial';80;700;1) glaUseFontOutlines__ogl 32 95 32 0 0.3,WGL_FONT_POLYGONS
lighttext''
)
paint=: 3 : 0
gsinit GS_LIGHT
if. FIRST do. setup FIRST=: 0 end.
gscolor 3 1 # 0.5 1
NB. ...
NB. ===================================================
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