• freeagle (4/4) Aug 29 2006 Hello, I started to work on a cross-platform app framework based around
• freeagle (5/10) Aug 30 2006 shame on me, I didn't notice that Trevor Parscal continues his work
• Jeff (5/10) Sep 02 2006 I've been wondering why OpenGL is so appealing to people for this sort
• freeagle (15/26) Sep 03 2006 Thanks for the reply,
• freeagle (8/19) Sep 03 2006 Oh, sry, I forgot to answer you first question. Why OpenGL? purpose of
• Bill Baxter (11/37) Sep 30 2006 I think OpenVG is supposed to be released sometime around the end of the...

freeagle <dalibor.free gmail.com> writes:

Hello, I started to work on a cross-platform app framework based around 
an OpenGL GUI library. You can find more info at 
http://freedev.yweb.sk/projects/libraries/universal/info.html

freeagle

freeagle <dalibor.free gmail.com> writes:

freeagle  wrote / napísal(a):
 Hello, I started to work on a cross-platform app framework based around 
 an OpenGL GUI library. You can find more info at 
 http://freedev.yweb.sk/projects/libraries/universal/info.html
 
 freeagle

shame on me, I didn't notice that Trevor Parscal continues his work 
under a new name - Element. Well, I'll at least try to go for the same 
goal on a different path and try to maintain some healthy competition ;)

freeagle

Jeff <psychobrat gmail.com> writes:

freeagle wrote:
 Hello, I started to work on a cross-platform app framework based around 
 an OpenGL GUI library. You can find more info at 
 http://freedev.yweb.sk/projects/libraries/universal/info.html
 
 freeagle

I've been wondering why OpenGL is so appealing to people for this sort 
of thing. Wouldn't Cairo be more suitable (since OpenGL could then be 
used as desired, but not strictly required), especially considering the 
- then relatively easy - integration of other handy libraries like Pango?

freeagle <dalibor.free gmail.com> writes:

Jeff  wrote / napísal(a):
 freeagle wrote:
 Hello, I started to work on a cross-platform app framework based 
 around an OpenGL GUI library. You can find more info at 
 http://freedev.yweb.sk/projects/libraries/universal/info.html

 freeagle

 
 I've been wondering why OpenGL is so appealing to people for this sort 
 of thing. Wouldn't Cairo be more suitable (since OpenGL could then be 
 used as desired, but not strictly required), especially considering the 
 - then relatively easy - integration of other handy libraries like Pango?

Thanks for the reply,

I read some info about cairo, and it looked very promising. It could be 
possible to wrap cairo as an advanced 2D subsystem of the framework, and 
I really started to think about it. Until I found this at cairo site:

"For the time being disregard the idea of drawing into the same surface 
or texture with cairo- and OpenGL-calls. This is possible, but not in a 
very straight forward fashion. Also threadding-issues are not covered 
here at the moment. Everything happens in one thread right now."

They say using both cairo and gl calls to one surface is possible, but 
not that easy. While this can be solved, the second part of the quote 
really turned me down. As I wrote on my site, the framework will use 
thorough use of threads. Until cairo can't guarantee it's thread-safe 
status, I will not implement is as part of the framework.

Freeagle

freeagle <dalibor.free gmail.com> writes:

Jeff  wrote / napísal(a):
 freeagle wrote:
 Hello, I started to work on a cross-platform app framework based 
 around an OpenGL GUI library. You can find more info at 
 http://freedev.yweb.sk/projects/libraries/universal/info.html

 freeagle

 
 I've been wondering why OpenGL is so appealing to people for this sort 
 of thing. Wouldn't Cairo be more suitable (since OpenGL could then be 
 used as desired, but not strictly required), especially considering the 
 - then relatively easy - integration of other handy libraries like Pango?

Oh, sry, I forgot to answer you first question. Why OpenGL? purpose of 
these libs is to use hardware acceleration whereever possible and offer 
the same API regardless of the underlaying platform. There are only two 
fully-featured graphics APIs that use modern hardware for render 
acceleration - Direct3D and OpenGL. D3D is only for Windows platform. I 
think this leaves no other option than OpenGL.

freeagle

Bill Baxter <wbaxter gmail.com> writes:

I think OpenVG is supposed to be released sometime around the end of the 
year.  And it is likely to be supported by vendors.  Don't know how long 
that will take, but if you have time, it may be worth waiting for that.

Anyway, the antialiasing situation in OpenGL is very disappointing as 
far as high-quality 2D output is concerned.

Check out Amanith, which is a good demo of the quality you can hope to 
get out of current OpenGL.
For non-HW accel there the antigrain geometry library (AGG), which does 
have quite good quality.

--bb

freeagle wrote:
 Jeff  wrote / napísal(a):
 
 freeagle wrote:

 Hello, I started to work on a cross-platform app framework based 
 around an OpenGL GUI library. You can find more info at 
 http://freedev.yweb.sk/projects/libraries/universal/info.html

 freeagle


 I've been wondering why OpenGL is so appealing to people for this sort 
 of thing. Wouldn't Cairo be more suitable (since OpenGL could then be 
 used as desired, but not strictly required), especially considering 
 the - then relatively easy - integration of other handy libraries like 
 Pango?

 
 
 Oh, sry, I forgot to answer you first question. Why OpenGL? purpose of 
 these libs is to use hardware acceleration whereever possible and offer 
 the same API regardless of the underlaying platform. There are only two 
 fully-featured graphics APIs that use modern hardware for render 
 acceleration - Direct3D and OpenGL. D3D is only for Windows platform. I 
 think this leaves no other option than OpenGL.
 
 freeagle