hi, the Orthographic Projection may be the probem. Because of its nature you will never get a object as close to the camera as with a Perspective...

Same on Cygwin/Windows. Shall I repost this elsewhere?

*cough* : "in debug only" Why? You're not going to catch more errors that way; it just makes the coding of the feature more difficult....

You have asked about a very basic C++ concept, something you'd learn in any Introduction to C++ book. So... get such a book and read it. You'll...

Try "OpenGL 4.0 Shading Language Cookbook" e-book

I think you missed my point. If I have a vertex buffer with If I draw this buffer with GL_LINES I will get a red line from vertices 1,2 and a...

I think it's an awesome idea, but instead of starting at a random location and going sequentially from there I'd suggest that each uniform location...

What does the '->' between the imageset and GetDimensions(); represent?

2D is fairly straightforward. Maybe after reading overviews of some of the algorithms you can write it yourself? For 2D I suggest the gift wrapping...

glVertexAttribP4uiv sets the constant current-vertex attribute. Since you passed "0" it should immediately dereference NULL and crash, not set all...

it's a good idea, although i think it would be better, if that behavior will occur only if debug context is active. cause i'm not sure about possible...

I don't know what you mean by "slot". Uniform locations are arbitrary numbers. They have no meaning to the hardware. They're not byte offsets into a...

Thanks for pointing this and possible issues. I've modified my shaders to always write to the 2 output buffers, still working, and probably better...

Maybe the idea is good, but I cannot approve it. Uniform locations are "slots", hence the numeration. What are the benefits of assigning number, for...

Thats the point that I need to draw Panel and it's label in different color.

If you wish to draw them both with the same shader and a sinlge draw, call put the colour into the vertex structure and pass the colour to the...

I had this problem on either nVidia or AMD at some point. Now I am just careful to only enable the buffers I intend to write to. I don't know what...

A very good idea

Correct. While you can't buy a new Mac anymore with a GPU that wouldn't support OpenGL 4, MacOS X itself is still limited to OpenGL 3.2 - that's what...

First of all, you don't resize a context. When talking FBOs, you resize the their attachments - which you do for the second FBO. Cann you post some...

Then show the statement where you're doing that. It isn't in the code you posted: ...

Sorry, i didn't get you. I am setting it to non zero values though red, green, blue variables in my code and finally doing bit-wise operations....