jeremy

has anybody figured out how to enable polygon smoothing?

i'm trying to implement the following code (from the red book, 

www.glprogramming.com/red/chapter06.html#name2).

glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);

here's the message i'm sending to jit.gl.sketch (i'm using ortho 

reset, glmatrixmode projection, glloadidentity,

glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview, glloadidentity,

glcullface 2, glenable cull_face, glblendfunc 10

1, glclearcolor 0. 0. 0. 0., glclear, glenable blend, glenable

polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,

dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1., glvertex 91

gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75 367,

am i using the wrong clear function? the red book recommentds 

color_buffer_bit, but it's not clear how to access it.

i'm trying to implement the following code (from the red book, http:// 
www.glprogramming.com/red/chapter06.html#name2).

    glCullFace (GL_BACK);
    glEnable (GL_CULL_FACE);
    glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);
    glClearColor (0.0, 0.0, 0.0, 0.0);

  glClear (GL_COLOR_BUFFER_BIT);
       glEnable (GL_BLEND);
       glEnable (GL_POLYGON_SMOOTH);
       glDisable (GL_DEPTH_TEST);

here's the message i'm sending to jit.gl.sketch (i'm using ortho  
projection)

reset, glmatrixmode projection, glloadidentity,
glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview, glloadidentity,
glcullface 2, glenable cull_face,  glblendfunc 10
1, glclearcolor 0. 0. 0. 0., glclear, glenable blend,   glenable
polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,
dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1., glvertex 91
135, gltexcoord 1. 1., glvertex 339 154,
gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75 367,
glend, glpopmatrix,

am i using the wrong clear function? the red book recommentds  
color_buffer_bit, but it's not clear how to access it.

polygon-smoothing-with-jit-gl-sketch

polygon smoothing doesn't work on OSX in general. If you want

antialiasing on geometry you have to use fsaa.

> has anybody figured out how to enable polygon smoothing?

> i'm trying to implement the following code (from the red book, 

> www.glprogramming.com/red/chapter06.html#name2).

> glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);

> here's the message i'm sending to jit.gl.sketch (i'm using ortho

> reset, glmatrixmode projection, glloadidentity,

> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview, glloadidentity,

> glcullface 2, glenable cull_face, glblendfunc 10

> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend, glenable

> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,

> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1., glvertex 91

> 135, gltexcoord 1. 1., glvertex 339 154,

> gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75 367,

> am i using the wrong clear function? the red book recommentds

> color_buffer_bit, but it's not clear how to access it.

polygon smoothing doesn't work on OSX in general.  If you want
antialiasing on geometry you have to use fsaa.

On 11/3/07, Jeremy Rotsztain  wrote:
>
> has anybody figured out how to enable polygon smoothing?
>
> i'm trying to implement the following code (from the red book, http://
> www.glprogramming.com/red/chapter06.html#name2).
>
>     glCullFace (GL_BACK);
>     glEnable (GL_CULL_FACE);
>     glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);
>     glClearColor (0.0, 0.0, 0.0, 0.0);
>
>   glClear (GL_COLOR_BUFFER_BIT);
>        glEnable (GL_BLEND);
>        glEnable (GL_POLYGON_SMOOTH);
>        glDisable (GL_DEPTH_TEST);
>
>
>
> here's the message i'm sending to jit.gl.sketch (i'm using ortho
> projection)
>
> reset, glmatrixmode projection, glloadidentity,
> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview, glloadidentity,
> glcullface 2, glenable cull_face,  glblendfunc 10
> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend,   glenable
> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,
> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1., glvertex 91
> 135, gltexcoord 1. 1., glvertex 339 154,
> gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75 367,
> glend, glpopmatrix,
>
> am i using the wrong clear function? the red book recommentds
> color_buffer_bit, but it's not clear how to access it.
>
> thanks,
>
> jeremy
>


thanks wes, how would this be supported in jitter? with shaders?

On Nov 3, 2007, at 8:00 PM, Wesley Smith wrote:

> polygon smoothing doesn't work on OSX in general. If you want

> antialiasing on geometry you have to use fsaa.

>> has anybody figured out how to enable polygon smoothing?

>> i'm trying to implement the following code (from the red book, 

>> www.glprogramming.com/red/chapter06.html#name2).

>> glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);

>> here's the message i'm sending to jit.gl.sketch (i'm using ortho

>> reset, glmatrixmode projection, glloadidentity,

>> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview, 

>> glcullface 2, glenable cull_face, glblendfunc 10

>> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend, glenable

>> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,

>> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1., 

>> 135, gltexcoord 1. 1., glvertex 339 154,

>> gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75 

>> am i using the wrong clear function? the red book recommentds

>> color_buffer_bit, but it's not clear how to access it.

> polygon smoothing doesn't work on OSX in general.  If you want
> antialiasing on geometry you have to use fsaa.
>
> wes
>
> On 11/3/07, Jeremy Rotsztain  wrote:
>>
>> has anybody figured out how to enable polygon smoothing?
>>
>> i'm trying to implement the following code (from the red book,  
>> http://
>> www.glprogramming.com/red/chapter06.html#name2).
>>
>>     glCullFace (GL_BACK);
>>     glEnable (GL_CULL_FACE);
>>     glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);
>>     glClearColor (0.0, 0.0, 0.0, 0.0);
>>
>>   glClear (GL_COLOR_BUFFER_BIT);
>>        glEnable (GL_BLEND);
>>        glEnable (GL_POLYGON_SMOOTH);
>>        glDisable (GL_DEPTH_TEST);
>>
>>
>>
>> here's the message i'm sending to jit.gl.sketch (i'm using ortho
>> projection)
>>
>> reset, glmatrixmode projection, glloadidentity,
>> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview,  
>> glloadidentity,
>> glcullface 2, glenable cull_face,  glblendfunc 10
>> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend,   glenable
>> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,
>> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1.,  
>> glvertex 91
>> 135, gltexcoord 1. 1., glvertex 339 154,
>> gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75  
>> 367,
>> glend, glpopmatrix,
>>
>> am i using the wrong clear function? the red book recommentds
>> color_buffer_bit, but it's not clear how to access it.
>>
>> thanks,
>>
>> jeremy
>>
>


What are you trying to do? Polygon smoothing has polygon ordering

issues and is thus not a good solution for drawing antialiased

> thanks wes, how would this be supported in jitter? with shaders?

> On Nov 3, 2007, at 8:00 PM, Wesley Smith wrote:

> > polygon smoothing doesn't work on OSX in general. If you want

> > antialiasing on geometry you have to use fsaa.

> >> has anybody figured out how to enable polygon smoothing?

> >> i'm trying to implement the following code (from the red book,

> >> www.glprogramming.com/red/chapter06.html#name2).

> >> glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);

> >> here's the message i'm sending to jit.gl.sketch (i'm using ortho

> >> reset, glmatrixmode projection, glloadidentity,

> >> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview,

> >> glcullface 2, glenable cull_face, glblendfunc 10

> >> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend, glenable

> >> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,

> >> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1.,

> >> 135, gltexcoord 1. 1., glvertex 339 154,

> >> gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75

> >> am i using the wrong clear function? the red book recommentds

What are you trying to do?  Polygon smoothing has polygon ordering
issues and is thus not a good solution for drawing antialiased
polygons.  Have you tried fsaa?
wes

On 11/3/07, Jeremy Rotsztain  wrote:
>
> thanks wes, how would this be supported in jitter? with shaders?
>
> jeremy
>
> On Nov 3, 2007, at 8:00 PM, Wesley Smith wrote:
>
> > polygon smoothing doesn't work on OSX in general.  If you want
> > antialiasing on geometry you have to use fsaa.
> >
> > wes
> >
> > On 11/3/07, Jeremy Rotsztain  wrote:
> >>
> >> has anybody figured out how to enable polygon smoothing?
> >>
> >> i'm trying to implement the following code (from the red book,
> >> http://
> >> www.glprogramming.com/red/chapter06.html#name2).
> >>
> >>     glCullFace (GL_BACK);
> >>     glEnable (GL_CULL_FACE);
> >>     glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);
> >>     glClearColor (0.0, 0.0, 0.0, 0.0);
> >>
> >>   glClear (GL_COLOR_BUFFER_BIT);
> >>        glEnable (GL_BLEND);
> >>        glEnable (GL_POLYGON_SMOOTH);
> >>        glDisable (GL_DEPTH_TEST);
> >>
> >>
> >>
> >> here's the message i'm sending to jit.gl.sketch (i'm using ortho
> >> projection)
> >>
> >> reset, glmatrixmode projection, glloadidentity,
> >> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview,
> >> glloadidentity,
> >> glcullface 2, glenable cull_face,  glblendfunc 10
> >> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend,   glenable
> >> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,
> >> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1.,
> >> glvertex 91
> >> 135, gltexcoord 1. 1., glvertex 339 154,
> >> gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75
> >> 367,
> >> glend, glpopmatrix,
> >>
> >> am i using the wrong clear function? the red book recommentds
> >> color_buffer_bit, but it's not clear how to access it.
> >>
> >> thanks,
> >>
> >> jeremy
> >>
> >
>
>


i'm just rendering a texture on a skewed plane.

ah, it just occurred to me that fsaa is supported by jit.window. thanks!

On Nov 3, 2007, at 11:37 PM, Wesley Smith wrote:

> What are you trying to do? Polygon smoothing has polygon ordering

> issues and is thus not a good solution for drawing antialiased

>> thanks wes, how would this be supported in jitter? with shaders?

>> On Nov 3, 2007, at 8:00 PM, Wesley Smith wrote:

>>> polygon smoothing doesn't work on OSX in general. If you want

>>> antialiasing on geometry you have to use fsaa.

>>>> has anybody figured out how to enable polygon smoothing?

>>>> i'm trying to implement the following code (from the red book,

>>>> www.glprogramming.com/red/chapter06.html#name2).

>>>> glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);

>>>> here's the message i'm sending to jit.gl.sketch (i'm using ortho

>>>> reset, glmatrixmode projection, glloadidentity,

>>>> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview,

>>>> glcullface 2, glenable cull_face, glblendfunc 10

>>>> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend, glenable

>>>> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,

>>>> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1.,

>>>> 135, gltexcoord 1. 1., glvertex 339 154,

i'm just rendering a texture on a skewed plane.
ah, it just occurred to me that fsaa is supported by jit.window. thanks!
i wish i'd realized this 5 hours ago!

> What are you trying to do?  Polygon smoothing has polygon ordering
> issues and is thus not a good solution for drawing antialiased
> polygons.  Have you tried fsaa?
> wes
>
> On 11/3/07, Jeremy Rotsztain  wrote:
>>
>> thanks wes, how would this be supported in jitter? with shaders?
>>
>> jeremy
>>
>> On Nov 3, 2007, at 8:00 PM, Wesley Smith wrote:
>>
>>> polygon smoothing doesn't work on OSX in general.  If you want
>>> antialiasing on geometry you have to use fsaa.
>>>
>>> wes
>>>
>>> On 11/3/07, Jeremy Rotsztain  wrote:
>>>>
>>>> has anybody figured out how to enable polygon smoothing?
>>>>
>>>> i'm trying to implement the following code (from the red book,
>>>> http://
>>>> www.glprogramming.com/red/chapter06.html#name2).
>>>>
>>>>     glCullFace (GL_BACK);
>>>>     glEnable (GL_CULL_FACE);
>>>>     glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);
>>>>     glClearColor (0.0, 0.0, 0.0, 0.0);
>>>>
>>>>   glClear (GL_COLOR_BUFFER_BIT);
>>>>        glEnable (GL_BLEND);
>>>>        glEnable (GL_POLYGON_SMOOTH);
>>>>        glDisable (GL_DEPTH_TEST);
>>>>
>>>>
>>>>
>>>> here's the message i'm sending to jit.gl.sketch (i'm using ortho
>>>> projection)
>>>>
>>>> reset, glmatrixmode projection, glloadidentity,
>>>> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview,
>>>> glloadidentity,
>>>> glcullface 2, glenable cull_face,  glblendfunc 10
>>>> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend,   glenable
>>>> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,
>>>> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1.,
>>>> glvertex 91
>>>> 135, gltexcoord 1. 1., glvertex 339 154,
>>>> gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75
>>>> 367,
>>>> glend, glpopmatrix,
>>>>
>>>> am i using the wrong clear function? the red book recommentds
>>>> color_buffer_bit, but it's not clear how to access it.
>>>>
>>>> thanks,
>>>>
>>>> jeremy
>>>>
>>>
>>
>>
>


If FSAA doesn't pan out for whatever reason, you can do it yourself by

rendering to a texture and applying a smoothing convolution shader as

a slab before texture a fullscreen videoplane with the result.

> i'm just rendering a texture on a skewed plane.

> ah, it just occurred to me that fsaa is supported by jit.window. thanks!

> On Nov 3, 2007, at 11:37 PM, Wesley Smith wrote:

> > What are you trying to do? Polygon smoothing has polygon ordering

> > issues and is thus not a good solution for drawing antialiased

> >> thanks wes, how would this be supported in jitter? with shaders?

> >> On Nov 3, 2007, at 8:00 PM, Wesley Smith wrote:

> >>> polygon smoothing doesn't work on OSX in general. If you want

> >>> antialiasing on geometry you have to use fsaa.

> >>> On 11/3/07, Jeremy Rotsztain wrote:

> >>>> has anybody figured out how to enable polygon smoothing?

> >>>> i'm trying to implement the following code (from the red book,

> >>>> www.glprogramming.com/red/chapter06.html#name2).

> >>>> glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);

> >>>> glClearColor (0.0, 0.0, 0.0, 0.0);

> >>>> here's the message i'm sending to jit.gl.sketch (i'm using ortho

BTW,
If FSAA doesn't pan out for whatever reason, you can do it yourself by
rendering to a texture and applying a smoothing convolution shader as
a slab before texture a fullscreen videoplane with the result.

On 11/3/07, Jeremy Rotsztain  wrote:
>
> i'm just rendering a texture on a skewed plane.
> ah, it just occurred to me that fsaa is supported by jit.window. thanks!
> i wish i'd realized this 5 hours ago!
>
> jeremy
>
> On Nov 3, 2007, at 11:37 PM, Wesley Smith wrote:
>
> > What are you trying to do?  Polygon smoothing has polygon ordering
> > issues and is thus not a good solution for drawing antialiased
> > polygons.  Have you tried fsaa?
> > wes
> >
> > On 11/3/07, Jeremy Rotsztain  wrote:
> >>
> >> thanks wes, how would this be supported in jitter? with shaders?
> >>
> >> jeremy
> >>
> >> On Nov 3, 2007, at 8:00 PM, Wesley Smith wrote:
> >>
> >>> polygon smoothing doesn't work on OSX in general.  If you want
> >>> antialiasing on geometry you have to use fsaa.
> >>>
> >>> wes
> >>>
> >>> On 11/3/07, Jeremy Rotsztain  wrote:
> >>>>
> >>>> has anybody figured out how to enable polygon smoothing?
> >>>>
> >>>> i'm trying to implement the following code (from the red book,
> >>>> http://
> >>>> www.glprogramming.com/red/chapter06.html#name2).
> >>>>
> >>>>     glCullFace (GL_BACK);
> >>>>     glEnable (GL_CULL_FACE);
> >>>>     glBlendFunc (GL_SRC_ALPHA_SATURATE, GL_ONE);
> >>>>     glClearColor (0.0, 0.0, 0.0, 0.0);
> >>>>
> >>>>   glClear (GL_COLOR_BUFFER_BIT);
> >>>>        glEnable (GL_BLEND);
> >>>>        glEnable (GL_POLYGON_SMOOTH);
> >>>>        glDisable (GL_DEPTH_TEST);
> >>>>
> >>>>
> >>>>
> >>>> here's the message i'm sending to jit.gl.sketch (i'm using ortho
> >>>> projection)
> >>>>
> >>>> reset, glmatrixmode projection, glloadidentity,
> >>>> glortho 0. 640. 480. 0. -5. 5., glmatrixmode modelview,
> >>>> glloadidentity,
> >>>> glcullface 2, glenable cull_face,  glblendfunc 10
> >>>> 1, glclearcolor 0. 0. 0. 0., glclear, glenable blend,   glenable
> >>>> polygon_smooth, gldisable depth_test, glcolor 1. 1. 1. 1.,
> >>>> dim 200 200, glpushmatrix, glbegin quads, gltexcoord 0. 1.,
> >>>> glvertex 91
> >>>> 135, gltexcoord 1. 1., glvertex 339 154,
> >>>> gltexcoord 1. 0., glvertex 335 380, gltexcoord 0. 0., glvertex 75
> >>>> 367,
> >>>> glend, glpopmatrix,
> >>>>
> >>>> am i using the wrong clear function? the red book recommentds
> >>>> color_buffer_bit, but it's not clear how to access it.
> >>>>
> >>>> thanks,
> >>>>
> >>>> jeremy
> >>>>
> >>>
> >>
> >>
> >
>
>


polygon smoothing with jit.gl.sketch