opengl texture not rendering properly?

I'm trying to render a wolf model. I've got the model to render properly. However, the texture I haven't gotten to...

GLSL 2D Rounded corners?

I want to add some black outline to my game screen to make it look like the corners are rounded. This is the effect ...

How triangle patch tessellation is done using edge and inner tessellation factors??

I am just learning tessellation and i came across with below example for triangle patch tessellation but i am not su...

Why isn't this square in the middle of the screen??

I wrote some code, expecting to see a square in the middle of the screen, instead the square appears higher up, in s...

Normal mapping on flat water surface produces incorrect specular highlights?

I have a flat water surface with a dudv and a normal map attached to it. The dudv map works correct and the normal m...

How does tessellation increase performance??

It seems counter intuitive that calculating more vertices instead of just reading more from vram would be faster. Bu...

How to replace 'gluOrtho2d' in a Qt app?

I am working on bring back to life a program I wrote seven years ago. It is all written in Qt and uses some OpenGL ...

CMake cannot find source file (add_executable)?

I have been trying to follow the vendor's tutorial here: CMake-Tutorial, look over the documentation here: Cmake-Doc...

Why are SDL and OpenGL related??

I was messing around with SDL and found out that you cannot rotate images with SDL. Everywhere the question was aske...

Libgdx 3D - Point Light shows black box & rect (PointLight not working)?

I am creating a 3d scene currently a box and rect, and trying to enable lighting. When i create a PointLight and...

What is hardware cursor and how does it work??

Is there anyone who can explain how hardware cursor works precisely? How does it relate to the graphics I'm drawing ...

'glDrawArrays: attempt to access out of range vertices in attribute 1' on Emscripten/OpenGL code (works in native C++)?

I have narrowed down the issue to this. I have two attributes pointed at the exact same data. This works fine when...

What is so bad about GL_QUADS??

I hear that GL_QUADS are going to be removed in the OpenGL versions > 3.0, why is that? Will my old programs not ...

What is the difference between FreeGLUT vs GLFW??

My university started teaching a course which includes OpenGL programming. They make us use FreeGLUT to create a win...

GL Error 1280 when enabling depth test?

I'm having some problems with an opengl application I'm writing. GLenum err = 0; glEnable( GL_DEPTH_TEST ); err = g...