Hi I have a visual artefact in my scene that I don't quite understand. Some background information: In the pre-render I write to 3 buffers:...

I'm developing a lighting system for my Voxel engine. It's simply a list of lights containing the following information: Light Position (Vec3)...

Hi. Can anyone tell me why my polygon is drawing with extensions... Like the picture: There is my code: ...

Problem: Currently, you have no way of telling/hinting the GL (or the driver) which of your commands are important (real time critical) and which...

Hi everyone. The scenario is the following: I wrote a very simple example program where I generate five tris from five points with a geometry...

hi all. ive been having trouble with this code. im 99% sure it has to do with my shaders, but i cant figure out the problem. its driving me nuts! i...

I'am checking the feasibility of introducing gcc compiler for sophomores in undergraduate course instead of TurboC compiler.Kindly advice me if...

Hello every body, I have a polygon consisting of 26 points as shown in the figure. i would just like to smoothen the edges. Could you suggest me some...

My suggestion would be to revamp the site and make it look at little bit more up to date and professional. Update the wiki, rid it of the grammar...

Anyone else experienced performance slowdown in this case? Personally I have a 4x(fps) slowdown. Every other version have worked perfectly until...

I am astoundingly disappointed with the new XML API Registry. I'm not going to pretend that I represent more than a tiny fraction of consumers of...

I would like some confirmation on this from an official source. The OpenGL bug database appears, from all visual evidence, to be nothing more than...

Hi all, This is my first post here. I've been learning C++, SDL, and OpenGL the last few weeks and finally ran into a problem I can't seem to get...

I'm trying to create a 4 by 4 square grid in the XZ-plane, with this bit of code: void Grid::init(GLuint& terVboId, std::vector<float>& offsetVec,...

( quick why) I have a GDI+ rubberband or sweep rectangle that I have been using with OPengl and a MFC application. BUT as some have you already...

Nvidia has bindless texture support on 600 and 700 series. Does amd have this yet? Or plan on supporting it.

i have tryed a fast shadow on smooth terrain program in freebasic that works with transparent objects like trees too, and also opengl1.x and above....

I am writing a C++ matrix library, mainly to learn more about linear algebra and improve my programming skills, even though I know plenty of...

Hello All, This is a continuation of this thread I didn't want to mix up the two things. So, i want to draw screen-space constant quads using...

Hello All, I have the following problem: - I need 2D billboarded items, that are screen-space constant in size, inside a 3D scene. My...

I have 20000 polylines to draw, when I make PAN, these redraw are blinking... I use vector and glVertexPointer(3, GL_DOUBLE, 0, data()); What...

Hello! I've benn googling for months but I finally surrender. Maybe someone here can help me. I'm writing a GIS (Geographic Information System)....

I've run across a change in the Nvidia 319/320 series drivers with regards to std140/packed uniform buffer objects that is causing havoc in our...

I am trying to rotate cube which is placed far away from origin(0,0), like i set model view projection using glOrtho( 80, 81, 25, 26, -100, 100); ...

Hello, I am writing a program in OpenGL, learning as I go. I have encountered an error which I cannot figure out. Can anyone help please? When I...

Dear Experts, triangle is not drawn when glOrtho z range between 0 and 1. glMatrixMode( GL_PROEJCTION ); glLoadIdendity(); glOrtho(...

I have some objects with vectors of positions. I have been successful getting them to sit on the floor by calculating their centre, and translating...

Hi using a vbo destroys the existing context, hence how to avoid such? Thanks

Hi everyone, Plz tell me funda of quaternion how can we calculate from euler angle and please tell me how can I calculate q factor.:D

Hello guys, AMD added support for OpenGL 4.3 in their latest 13.4 driver but it seems they have a bug on their implementation of Shader Buffer...