mesa3d-dev

[Mesa3d-dev] glFog

[Daniel V. <vo...@lo...>]

hi`

according to the specs (OpenGL 1.2.1 specs, page 19) calling glFog
between glBegin/End should generate an INVALID_OPERATION error. Or at
least this is how I read the specs ;-) I attached a small patch to Mesa
CVS that does the check but am not sure whether I call the right macro
there.

-- 
Daniel Vogel
Programmer
Loki Entertainment Software

Re: [Mesa3d-dev] glFog

[Brian P. <br...@pr...>]

Daniel Vogel wrote:
> 
> hi`
> 
> according to the specs (OpenGL 1.2.1 specs, page 19) calling glFog
> between glBegin/End should generate an INVALID_OPERATION error. Or at
> least this is how I read the specs ;-) I attached a small patch to Mesa
> CVS that does the check but am not sure whether I call the right macro
> there.

ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH() would be the correct macro.
I'm patching the 3.2 and 3.3 trees.

Thanks!

-Brian

Re: [Mesa3d-dev] glFog

[Andreas E. <eh...@ly...>]

On Mon, Jun 05, 2000 at 07:32:04AM -0600, Brian Paul wrote:
> 
> ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH() would be the correct macro.
> I'm patching the 3.2 and 3.3 trees.

What is the difference between ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH
and ASSERT_OUTSIDE_BEGIN_END ?

regards
Andreas Ehliar

Re: [Mesa3d-dev] glFog

[Brian P. <br...@pr...>]

Andreas Ehliar wrote:
> 
> On Mon, Jun 05, 2000 at 07:32:04AM -0600, Brian Paul wrote:
> >
> > ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH() would be the correct macro.
> > I'm patching the 3.2 and 3.3 trees.
> 
> What is the difference between ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH
> and ASSERT_OUTSIDE_BEGIN_END ?

ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH checks if there's any data in
the vertex buffer.  If there is, we first flush (render) the
vertex data before proceeding.

-Brian