On Thursday, 26 February 2015 at 06:32:07 UTC, Gan wrote:
On Thursday, 26 February 2015 at 03:17:32 UTC, stewarth wrote:
On Thursday, 26 February 2015 at 03:01:42 UTC, Rikki
Cattermole wrote:
On 26/02/2015 3:57 p.m., Gan wrote:
On Thursday, 26 February 2015 at 02:32:51 UTC, stewarth
wrote:
I'd also try hacking in Window.d directly to see if even
basic gl
commands work, e.g. immediately after window and context
creation, try
rendering a triangle then tweak the context initialisation
to see if
it affects anything.
It may help you track down exactly which part of the GL
setup is
causing problems.
Cheers,
Stew
I know almost nothing about OpenGL but using your
method(sorta):
void reportGLErrors() {
GLenum errCode;
const GLubyte *errString;
if ((errCode = glGetError()) != GL_NO_ERROR)
{
writeln("OPEN GL ERROR: ", errCode);
}
}
I get error code 1282 repeatedly.
From a google search someone says:
"First, glGetError() will return 1282 - invalid operation if
the GL
context is not current (or not yet created). So, create your
context
first, then call glGetError. And, verify that any parent
class or member
class does not call GL functions in their constructors or
prior to
context being created."
Can someone with more OpenGL knowledge clarify what this
means?
1. Program starts
2. Window gets created
3. Context gets created
4. Context is activated
5. Profit???
Basically before the context is created and activated you
cannot call any OpenGL functions. If you do, they will error
out.
The bit about constructors ext. don't worry about it. Its
just about e.g. where the calls to OpenGL can exist.
Yes, my bad sorry, but whatever works. The point is dive in
and start printfing about in Window.d, checking error codes to
try and figure out where things become stuffed up.
Cheers,
Stew
I did what you suggested. I added a bunch of writeln and
reportGLErrors. These are the results:
glMatrixMode(GL_PROJECTION);
OPEN GL ERROR: 1282
glLoadIdentity();
OPEN GL ERROR: 1282
glShadeModel(GL_FLAT);
OPEN GL ERROR: 1282
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
OPEN GL ERROR: 1280
glHint(GL_GENERATE_MIPMAP_HINT, GL_FASTEST);
OPEN GL ERROR: 1280
glOrtho(0, vMode.width, vMode.height, 0, 1, -1);
OPEN GL ERROR: 1282
Each error happens after each line is called. I'm not sure why
this happens or what it means.
According to docs: 1280 is GL_INVALID_ENUM
