Hello, I would like to create a simple satellite tracking / visualization software with OpenGL, that would result in something like this : (...

Reposting, as the last topic is bugged and cant be edited. I'm having issues where shadows vanish at certain angles and I want to ascertain I am...

Hi, I am loading a model on opengl. when I save the model to a tiff file, I can see it as a mirror pic of the X axis . How can I change it so...

I'm trying to run a program using the #330 core profile of GLSL and these variables appear to be deprecated and thus will not compile; how would I go...

Hi, I'm fairly new to OpenGL and doing research, reading books, etc. I noticed buffer streaming is an extremely common technique, but...

I use the following fragment shader, which uses the fog effect, to draw my scene: precision mediump float; uniform int EnableFog; uniform...

need a program for an oscillating pendulum - a sphere suspended to the end of the thread that can oscillate about the fixed point at the other end of...

Hi, I tried to compile my first application (red book,chapter1) but there are too much error. This is my github:...

Hi, here is my code: Vector3f CameraUpVector() const { Vector3f cameraDirection = m_cameraTarget - m_cameraPosition; ...

In multisampling, during rasterization there are more than one sample points in each pixel and sample points are decided which constitutes the...

Hey there, i've a question regarding the std140 layout. In my shader i have a uniform block like this: layout(std140) uniform GeometryInfos...

Hi I believe that this something every opengl programmer encounter initially . I am trying to render a quad as follows: void loadGeometry()...

Hello. I'm in need of testing if an axis oriented bounding box collides with a triangle (set of triangles as a terrain), and if it does - in which...

Hello there! I'm new and i have a problem... I'm reading OpenGL Suberbible 6th edition and i started on chapter one, i tried to build the files and...

I have a passToOpenGL function below to generate a vao, vbo, index buffer. After I generate, how can I update the vertices? I thought it would be...

Hi , please i want to ask , how can i draw a line in openGL? i have a project to submit in these days but i dont know how to draw the picture...

Hi everyone, currently I'm working on a project that uses a 3D texture as voxel storage. Everything's working fine so far, but I'd love to optimze...

Has anyone had any luck getting the SuperBible 6th ed Linux examples to link? According to HOWTOBUILD.TXT included in the examples, you just need to...

Hi forum, I am stuck with the problem of basic texturing. Check the following snippet: void startup() { //now load the floor texture ...

Hi and thanks for the help in advance. I'm using SDL2.0 in Visual Studio on Windows 8. If you look at my Code to draw a quad it should draw a square...

Hi all, I want to implement a smudge effect like photoshop's (can't paste a link here, but a quick youtube search will give you the example) I...

Hello everyone, I'm in a bit of a bind for a while now concerning object picking. Here's the situation: Our company has recently been...

The following program gives a value of (some random number) for the red point, but 0.0000 for the z-value of the point. How do I get a return of z...

On this link I found the formulas for glViewport. <www.opengl.org/wiki/GLAPI/glViewport> xw = (xnd + 1) (width / 2) + x; yw = (ynd + 1)...

Hello, I work with OpenGL 3.3. I try to create an OpenGL texture with a size defined by the user. After calling glTexImage2D I call glGetError. If...

I have the OpenGL driver 4.3 , but i am having the above error with the glTexStorage command. I am using glew to access the opengl extensions ...