That's an improvement.
After changing the minwh line to specify opengl version 4.1, I get
text (keys... scale... angle... matrix...) on the opengl screen
(previously it was just black). And, the text is updating - if I
recall correctly, though, I believe I should also be seeing a rotating
cube. And, I am not seeing any geometry being rendered -- only text.
For reference, with this change, here's what the shader demo dumps
into the jqt session:
GL_VERSION: 4.1 ATI-2.11.20
GL_VENDOR: ATI Technologies Inc.
GL_RENDERER: AMD Radeon Pro 560 OpenGL Engine
GL_SHADING_LANGUAGE_VERSION: 4.10
#version 410 core
in vec3 vertex;
in vec3 color;
out vec4 v_color;
uniform mat4 mvp;
void main(void)
{
gl_Position = mvp * vec4(vertex,1.0);
v_color = vec4(color,1.0);
}
#version 410 core
in vec4 v_color;
out vec4 fragColor;
void main(void)
{
fragColor = v_color;
}
Also:
glGetError_jgles_ ''
┌─┐
│0│
└─┘
I am not sure what else I should be checking. (If something went wrong
setting up the shader, I imagine there would have been a non-zero
error value.)
Thanks,
--
Raul
On Sun, Jan 23, 2022 at 10:01 PM bill lam <[email protected]> wrote:
>
> Another reference
> https://www.khronos.org/opengl/wiki/Programming_OpenGL_on_macOS
>
> you can try edit the file shader.ijs in addons/demos/qtdemo around line 11
> from
> minwh 300 300;cc g opengl flush;
> to
> minwh 300 300;cc g opengl version 4.1 flush;
>
> the version of GLSL is different from the version of OpenGL
>
> > On 24 Jan 2022, at 10:22 AM, Raul Miller <[email protected]> wrote:
> >
> > On Sun, Jan 23, 2022 at 9:14 PM Elijah Stone <[email protected]> wrote:
> >> On Sun, 23 Jan 2022, Raul Miller wrote:
> >>> But that demo does not work on my OSX (Mojave) machine (which has OpenGL
> >>> 1.2). For whatever reasons (possibly including availability of good
> >>> documentation), Apple has been slow to adopt newer versions of OpenGL
> >>
> >> Huh ... AFAIK apple stopped at opengl 4.2 or 4.3 or so which, while not
> >> great (I want dsa), is certainly passable; opengl 3.3 is a pretty decent
> >> baseline, and I think opengl 2 has a programmable pipeline already.
> >
> > When I run the shader demo, I get:
> >
> > GL_VERSION: 2.1 ATI-2.11.20
> > GL_VENDOR: ATI Technologies Inc.
> > GL_RENDERER: AMD Radeon Pro 560 OpenGL Engine
> > GL_SHADING_LANGUAGE_VERSION: 1.20
> > #version 120
> >
> > I was referring to the value of GL_SHADING_LANGUAGE_VERSION.
> >
> > (This is with a current set of addons.)
> >
> > I do not know how that relates to the 4.1 mentioned in
> > https://support.apple.com/en-us/HT202823
> >
> > FYI,
> >
> > --
> > Raul
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
