I'm having an issue with drawing an ellipse object using OpenGL (sharpgl to be exact since it works well enough with WPF). Right now I'm using this code (angles are in degrees): gl.Begin(OpenGL.GL_...

I would like to use OpenGL (version 1.5) to render images to memory, without displaying them on screen (I can e.g. just save them as image files or render them as ASCII in terminal). I do not want ...

I am creating a first-person view RPG and I want to rotate the camera in PyOpenGL when I move the mouse (just like some other games like Minecraft). What function can I use to do this and how? I t...

I'm trying to render a scene with OpenGL 2.1 but the borders on overlapping shapes are weird. I tested some OpenGL initialisations but without any change. I reduce my issue to a simple test applica...

I am not able to what gluOrtho2D() function is doing? Is it fixing the origin at some particular point on the OpenGL window or something else? This is because gluOrtho2D(1,1,1,1) fixes the origin ...

I need to render some scene. I managed to do it in python using pyopengl and pygame. The problem is that it creates a window for a short period of time. I want to render the same image and save it...

i want to draw a polygon in openGL Glut with mouse interaction, every left click that will be made will be a vertex and a line will be drawn between every vertex. when the right mouse will be click...

When using the OpenGL fixed function pipeline for vertex setup, how a fragment program looks like that is compatible to the fixed function vertex setup? I guess that usually depends on the number o...

I have a problem when I try to use GL_POLYGON in OpenGL. I don't know how to explain this but all my vertices are connected with the beginning one. The problem happens when I try to color the objec...