Right, format is rgba, but alpha channel not enabled in shader.ijs
it needs to add 2 lines,
glEnable GL_BLEND
glBlendFunc GL_SRC_ALPHA; GL_ONE_MINUS_SRC_ALPHA
otherwise alpha is ignored.
Fri, 28 Feb 2020, Raul Miller написал(а):
> On Fri, Feb 28, 2020 at 2:09 PM Brian Schott wrote:
> > Of course
I added your tetrahedron object data into my test file for shader.ijs. The goal
was to get a tetrahedron and a cube up there rotating. What I got was 2 badly
formed tetrahedron rotating. I had thought from my reading that the shader
should keep these entities distinct.
I don’t know why I can’t
It is shown up at the bottom, because we have a habit of top
posting.
Fri, 28 Feb 2020, Raul Miller написал(а):
> And... this shows up in the forum archive -- not as an attachment, but
> as the tail end of my post.
>
> http://jsoftware.com/pipermail/programming/2020-February/055196.html
>
> So,
Raul,
My problems with color may be different from the ones you mention.
In the pair of lines below in the shader.ijs program, the first is the
original line and the second is the line that gives some, but CRAZY,
uniform face color.
NB. glVertexAttribPointer colorAttr; 3; GL_FLOAT; 0; 0; 0
glVert
On Fri, Feb 28, 2020 at 2:09 PM Brian Schott wrote:
> Of course I am still struggling with painting the faces of the tetrahedrons
> as solid colors. They are my tentative turtles. I am now wondering if my
> problem is related to the use of four-element color vectors instead of
> three element. I h
Thomas,
I agree with Bill that this is a great step forward in understanding how to
use opengl.
My main interest is in doing a turtle graphics app which enables multiple
turtles to appear on the screen. In the previous version I had to keep
track of the position and heading of each turtle for eac
I got the short .txt file as an attachment, which opened when asked.
> On Feb 28, 2020, at 1:16 PM, Raul Miller wrote:
>
> Here's the same file with a .txt extension.
--
For information about J forums see http://www.jsoftware.c
And... this shows up in the forum archive -- not as an attachment, but
as the tail end of my post.
http://jsoftware.com/pipermail/programming/2020-February/055196.html
So, that's promising.
Thanks,
--
Raul
On Fri, Feb 28, 2020 at 1:15 PM Raul Miller wrote:
>
> I attached an .ijs
>
> Here's t
I attached an .ijs
Here's the same file with a .txt extension.
Thanks,
--
Raul
On Fri, Feb 28, 2020 at 12:31 PM 'robert therriault' via Programming
wrote:
>
> Hey Raul,
>
> I think that Bill was suggesting that you convert the .ijs file to .txt
> before attaching. Did you attach a .txt versi
Hey Raul,
I think that Bill was suggesting that you convert the .ijs file to .txt before
attaching. Did you attach a .txt version or the .ijs version of the file.
Cheers, bob
> On Feb 28, 2020, at 09:23, Raul Miller wrote:
>
> And... I do not see the attachment at
> http://jsoftware.com/pipe
And... I do not see the attachment at
http://jsoftware.com/pipermail/programming/2020-February/055193.html
The other copy seems to indicate that my attachment got the mime type
"application/octet-stream", despite it being text content (I was
hoping for "text/plain".)
That said, ... I should proba
Hmm...
I am attaching an example .ijs file to this response.
I am also bcc'ing a copy of this message to an alternate email
address, so that I can see how it gets treated outside the forums.
Will the attachment show up at
http://jsoftware.com/pipermail/programming/2020-February/date.html? (I
wil
I think J forum actually accept text file attachments.
Attach .ijs file as .txt file probably work if email
client set mime type correctly.
Fri, 28 Feb 2020, Raul Miller написал(а):
> This is getting to be long enough that it might help to use a resource
> like github (either a repository or a gis
This is getting to be long enough that it might help to use a resource
like github (either a repository or a gist) or even pastebin (rather
than email) to distribute it.
(I'm still getting going for today, and haven't actually tried this,
yet. But I'm anticipating some difficulties separating text
Here's a better illustration of the problem:
example=: ((3 ar)`) (`(5 ar))(`:6)
0!:0 'example2=:',5!:5<'example'
+ example
8
+ example2
|domain error: example2
Thanks,
--
Raul
On Thu, Feb 27, 2020 at 10:15 PM 'Pascal Jasmin' via Programming
wrote:
>
> the bug is the display of
>
>
This works for me.
Lets move this to general and discuss there.
On Fri, Feb 28, 2020 at 7:49 AM 'Michael Day' via Programming
wrote:
>
> But - in jconsole, as instructed at
>
> https://code.jsoftware.com/wiki/Guides/Qt_IDE/Install/2 Slim vs Full
> Builds :
>
>install'full'
> Updating ser
that’s the way I had done it in the first place,
only in one line 2 : '1 : (… '' (u A)~ '' … )'
What I forgot was to keep in mind what parts of speech
I’m dealing with so I forgot to parenthesize the noun
to the right; in a simple test case I said i.3 to the right
and the modifier grabbed the i. r
But - in jconsole, as instructed at
https://code.jsoftware.com/wiki/Guides/Qt_IDE/Install/2 Slim vs Full
Builds :
install'full'
Updating server catalog...
Installing 1 package
Downloading base library...
Installing base library...
Done.
Installing JQt binaries...
Finished install of JQt b
Oh, I'd forgotten that possibility.
Thanks to you & BIll,
MIke
On 28/02/2020 15:10, chris burke wrote:
This entry in your J version
Qt IDE: 1.8.5s/5.12.6
indicates that you have the slim qtide, and need the full version for webview.
See https://code.jsoftware.com/wiki/Guides/Qt_IDE/Install.
You had installed the slim version which doesn't have webview/browser. You
need to installed the full jqt if you want webview.
On Fri, Feb 28, 2020, 10:40 PM 'Michael Day' via Programming <
programm...@jsoftware.com> wrote:
> Wishing to visualise a set of pairs of integers as a graph, I
> discov
This entry in your J version
Qt IDE: 1.8.5s/5.12.6
indicates that you have the slim qtide, and need the full version for webview.
See https://code.jsoftware.com/wiki/Guides/Qt_IDE/Install.
On Fri, Feb 28, 2020 at 6:40 AM 'Michael Day' via Programming
wrote:
>
> Wishing to visualise a set of pa
Just this week I found a problem with the 'here' accounting in
showdetail. The new base library isn't available yet, but the change
was small: replace the line
her=. 2 >: bgn usage end
with
her =. 1 = +/\ bgn - end
If that doesn't help, see if you can create a reproducible testcase,
perhap
1&fc convert j double number to single precision bit pattern because single
precision is used in kernels. Double precision is not well supported in
low-end GPU. If 1&fc is omitted, GPU will interpret the buffer of double
precision as single precision bit patterns.
On Fri, Feb 28, 2020, 9:52 PM Bri
Wishing to visualise a set of pairs of integers as a graph, I
discovered graphviz
hiding among the addons.
I think I've installed it - ie update the addon, and then:
load 'c:/d/j901/addons/graphics/graphviz/graphviz.ijs'
getbin_pgraphview_''
Graphviz binaries installed.
But then:
gr
All,
With my tetrahedron example I have the following completely different color
scheme.
colorData=: 1&fc ,1,"1~_3]\3#"2] 0&". ;._2 [ 0 : 0
1 0 0
0 1 0
1 1 1
0 1 1
)
This color scheme uses length 4 vectors instead of length 3 vectors:
glVertexAttribPointer colorAttr; 4; GL_FLOAT; 0; 0; 0
The go
Bill, especially (Thomas, Raul, and others),
Your comment regarding trying a simpler figure and simplifying the color
has led me to consider several alternatives. Below I show a revised script
which uses a tetrahedron (4 faces) and some color changes. I think the
tetrahedron is mostly working for
FWIW, I usually use start_jpm_ 1e8.
If its tables overflow, jpm returns a message * to that effect when I try
showdetail_jpm_ ‘foo’
I would then try start_jpm_ 1e9 ...
But I don’t recall using 6!:10, at least, not explicitly.
Mike
* Eg, starting with an obviously too low value,
start_jpm
Thomas, thank you very much for the detail explanation.
Fri, 28 Feb 2020, Thomas McGuire написал(а):
> At first I thought I would have to. But after doing some searching on shaders
> and OpenGL it turns out that if you don’t mind using the same shader, you can
> just send multiple objects in and
At first I thought I would have to. But after doing some searching on shaders
and OpenGL it turns out that if you don’t mind using the same shader, you can
just send multiple objects in and different model-views into the original
kernel (the GLSL code you are referring to).
It gets a little cra
I tried
start_jpm_ 1e8
and the results, at least the top-level ones, passed a basic sanity test by
showing 46 or so seconds which matches what I see with 6!:2. At least the
relative timings seem consistent and make sense.
On Fri, Feb 28, 2020 at 1:45 AM bill lam wrote:
> When starting PM, it
30 matches
Mail list logo
