Texture Rectangles (EXT or ARB) do not support the GL_REPEAT wrap
mode. Refer to the specification here:
http://www.opengl.org/registry/specs/ARB/texture_rectangle.txt
"
...
1) Should rectangular textures simply be an extension to the 2D
texture target that allows non-power-of-two widths and heights?
No. The rectangular texture is an entirely new texture target type
called GL_TEXTURE_RECTANGLE_ARB. This is because while the
texture rectangle target relaxes the power-of-two dimensions
requirements of the texture 2D target, it also has limitations such as
the absence of both mipmapping and the GL_REPEAT and
GL_MIRRORED_REPEAT wrap modes. Additionally, rectangular textures do
not use [0..1] normalized texture coordinates.
...
"
Hope that helps,
Michel
--
Michel Castejon
OpenGL / Core Image
Apple Inc.
On Nov 22, 2007, at 1:56 AM, Raphael Sebbe wrote:
For reference,
I managed to get the app working without GC until the first few
renderings (crash would occur just after), then could break on error
in OpenGL profiler.
The error is due to this:
glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_WRAP_S,
GL_REPEAT)
which apparently is a bad combination (yet it does work, texture
repeating), detected by QC. I changed it to GL_TEXTURE_2D.
Thanks,
Raphael
On Nov 18, 2007 7:39 PM, Raphael Sebbe <[EMAIL PROTECTED]>
wrote:
Hi,
Well, this is not an option for me, OpenGL Profiler is broken for
garbage collected apps, mine won't work without GC. Do you have
another option to track that error ?
Thank you
Raphael
On Nov 16, 2007 5:50 PM, Pierre-Olivier Latour <[EMAIL PROTECTED]> wrote:
Run your app under OpenGL Profiler with "break on error" and you
will see
which call fails
Make sure you are not doing invalid GL stuff before calling QC
On Nov 16, 2007, at 2:17 AM, Raphael [EMAIL PROTECTED] wrote:
Hi,
I've set up an OpenGL view in which I render using a QCRenderer.
The first
time I render it, I get this error in the log and nothing renders:
*** OpenGL error 0x0500 (invalid enumerant) in function "-
[QCOpenGLContext
willPushRenderState:]"
There are no more errors from the second rendering and after.
This is a pretty simple composition taking CIImage and
NSBitmapImageRep as
inputs.
Any advice on this ?
Thanks,
Raphael _______________________________________________
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