Hi, i just started to learn OpenGL. I used a tutorial for the beginning and worte starting from it my own program (not allowed to post lins. When...

I'm learning lighting, and noticed that most tutorials use GLM (for good reason I'm sure). GLM apparently uses column major matrices, but in my case...

I have tryed to impement shadow mapping in my OpenGL project, but if I do this : shadowCoords =...

Hello. I'm pretty new to the modern GL pipeline even though I feel like I understand it pretty well. I'm setting up a simple test to render two...

Im trying to render to a texture (shadowmap) but if I try to generate the framebuffer I always get GL_UNSUPORTED_FRAMEBUFFER_EXT. I have a Nvidia...

Hi, i'm new in this, and i dont know how start in OpenGL programming, i've downloaded freeglut, but, i don't know if i've correctly installed,...

Hey everyone, I was wondering if its possible to get the length of an array containing arrays? Im currently trying to accomplish this with...

Hi, i was cleaning up my project, but now nothing is displayed anymore. Maybe you can take a look at it and tell me what i miss. I checked...

I'm making an exporter. The situation is that I have the verts as polygons with the verts in render order for each polygon. I am just doing this test...

Hi guys, I'm new here! I'm coding with C, and I want to do a gravitational particles simulator. I want to plot cartesian points and update their...

Hi there, i need some help in applying a shader (my first try) to an existing colored object. I copied a simple toon-shader-function from a...

I am intending to do some state caching so that I can prune out redundant bind calls. To bind a texture one must first activate a texture unit...

Hi, all! I have, maybe, abstract question, though I have some code for it. Small program draws a circle which can be moved by arrow keys (by some...

Hi, i think i'm gonna touch the advanced OpenGL programming now. Since my program become bigger and bigger, i started to organize it a bit....

My game's world is very simple: quads for the walls, floors, and roofs. Think Wolfenstein or Doom. All quads would use one single texture that...

Hi! I have a few issues that i've experienced using OpenGL - are these bugs? i'm using code::blocks, and GLUT with xcode 2.5 on osx 10.4 (actually...

Hi guys, I developed an OpenGL engine, with version 3.3, it works, but today I tried to move the project from my Windows 7 pc to a Windows 10 laptop...

Hello! I am writing my own 3D rendering engine using OpenGL in C++. I have encountered a problem with displaying textures, which is only visible...

I am dealing with geometry shaders following https://open.gl/geometry. My OPENGL version is 2.1, GLSL version is 1.20, OS X. When vertex shader and...

Learn how to setup OpenGL on Mac using GLFW for the render window and GLEW to access new OpenGL features. ...

Hello, i recently upgraded my sytem to Ubuntu 16.04. Since there is no fglrx driver for my AMD gpus, i had to use the radeon driver. My...

Let's say my camera is at of the world, would it be looking towards the negative or positive Z? I know it all depends on how I set up my coordinate...

I'm encountering a flickering issue that occurs over my entire render window in my program. It only seems to occur when the program does not have...

here is my code #include <stdlib.h> #include <math.h> #include <stdio.h> #include <GL/glut.h> #define ESC 27

Excuse me if I'm wrong, but my understanding of what the dot product of 2 vectors is, it's the angle between them, like the following drawing (sorry...

Would anybody have any advise on how to accomplish the following look with GLSL? It looks like the dev removes color, but not sure how to do...

I just cannot install or link glfw library in ubuntu but glut/glu is working fine. SO i basically want to ask if i can just learn opengl with glut or...

The only functionality I'm missing on my camera is getting the forward vector using the pitch and yaw. I know I've calculated the Pitch and Yaw...

Let's say the normal pipeline is rendering filled Triangles in 3d, where each vertex has an associated normal, and the Geometry Shader is bypassed. ...

I want to achieve a ripple effect on a procedurally generated mesh: distort it's z coordinate so that the mesh kind of floats like a wave in a random...