When I attended UCSD, many moons ago, I was shocked to find that the Chemistry department almost considered their class on OpenGL a requirement. Since then, I have been employed in a video...

When I was working with terrain, I found that the SOAR terrain technique was rather well suited. http://www.cc.gatech.edu/~lindstro/software/soar/

Back then, of course, there wasn't much in the...

Perhaps a look at NVidia's Cg might also be helpful... I suspect you'll have to do very little work to make your HLSL code work in Cg.

This is what I usually run with. It's the "whole kit & kaboodle."


#include <X11/Xlib.h>
#include <X11/Xutil.h>

#define GL_GLEXT_PROTOTYPES
#define GLX_GLXEXT_PROTOTYPES

#include...

Xinerama. I asked about using twinview, and my boss is vehemently opposed to it because "we're not going to use NVidia forever." ...and a few other reasons, some of which I don't agree with.

Where I work, we use a number of different machines to encode and decode video streams. The actual code that's doing the encoding and decoding is a closed-source library we buy from either Intel or...

I have noticed that glxCreateContext allows the sharing of textures between two contexts. I have a few questions for anybody that has knowledge in this department.

If context A, in thread A were...

There are a lot of example programs out there that would help you, I typed "OpenGL dxf" in Google, and got a number of different options. The first one on the list was http://www.bearcave.com/dxf/ ...

you can create quads out of your points, then when the image is scaled the quads will scale with it. You can also do as Z says, and create the image as a texture... I think I'd rather do what Z...

You can do one of two things, you can create your own control widgets in OpenGL and then handle all events yourself, or you could use something like Gtkmm to create your controls, and gtkglextmm to...

Also, backfaced polygons should be removed. If the depth buffer isn't helping you, your polygons might be wound backwards, causing the far side of the teapot to show and not the near side.

I wrote a little YUV to RGB converter in GLSL for my company, and found that I needed to do a fair amount of math to get the equations in FourCC to work in a YUV vector to RGB vector transform...

I have always used GLFW for cross platform OpenGL, it is simple and to the point. License allows you maximum freedom and the manuals are clear and easy to read. Last I checked, it was still fully...

I am working for a video conference company, and despite my suggestions to the contrary, a few months ago my boss chose Gtkmm for a windowing/widget library for use in a new product. The video is to...

Basically, a manifold surface is a surface that completely encloses a volume.

I "fixed" this issue by not killing the rendering context, but merely unmapping the window in which it was rendering. All I needed to do was get the window to not display, since the intended "window...

I am working on a program which has to start and stop an OpenGL rendering context. This application is a video decoder for a video conference system running on Fedora Core 5/6/7. The issue of the...

I have a memory leak. When I run valgrind, it tells me that the memory was allocated somewhere deep within my OpenGL libraries, libGL.so.1.0.9746. I am using the nVidia proprietary driver.
...

What I would do, and this is just for simplicity's sake, I would open a file, and write certain things to that file when certain things happen, say you're allocating an object, print the pointer...

I hate it when I answer my own question. Here goes...

The load was strangely enough in glFinish(). I was calling that before swapping the buffers, which I suppose calls its own implicit...

I think for you to get alpha, you might have to turn on blending.

I would imagine that you could offscreen render it onto a quad then copy from that.

Funny nobody mentions Cal3d... although it is old, it is open source, the programming is rather friendly and it comes with a decent demo app to show how to use the lib. Unfortunately, it does all...

I am rendering a few quads onto the screen in a video decoder application. I've been working on getting this as highly optimized as possible, however, there seems to be an unjustifiable load on the...

I am using OpenGL to convert YUV to RGB. I don't use Xv because it has some pretty awful tearing artifacts, and I need to be able to run a lot of video through my application.

I am wondering if...