Hi, i'm trying to compile a simple vertex shader, but I keep getting this error: "ERROR: 0:2: Invalid qualifiers 'in' in global variable context"....

I like Euler rotation based on degrees so I can keyframe an animation of a large number of degrees, like 1000, and get multiple full 360-degree...

Hi, I Need to display contours for a given grid. The grid what I have is triangulated. I also have an algorithm for generating contours for a...

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 would like to render instanced geometry with a per-instance texture. To do so, I want to create a Vertex Attrib (that is consumed in a...

I probably already have a solution to the math behind moving the scene towards the camera, but it stops rendering when translated much at all and...

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, I am confused :confused: with term 'Orientation' and 'Rotation'.anyone please explain .Thanks in advance........

Recently, i have implemented real-time reflection and gi in my cpu renderer, and I want to port them to opengl, these require offsceen writing of...

Hallo I implemented a multiple post processing shader support for my game, but now, i have the following bug: When i use and render my post...

hey, it's been a while since i asked here some question about implementation of something... and this is the case, cause i'm puzzled. before trying...

A short while ago there was a thread on measuring performance of different shader subroutines. I have been having a look at nVidia NVPerfKit sdk. It...

Hello all, What I'm trying to do simply is creating a virtual map by using opengl based on the concept of simultaneous localization and mapping....

Hello, I'm learning about bump mapping and I've made this code in a DOJO class: uniform sampler2D sampler2d0; uniform sampler2D sampler2d1;...

Hello all I'm trying to use vbos in my OpenGL application and a had some difficulties. I read a tutorial(www.opengl-tutorial.org) and now I'm trying...

Greetings: I see that float aspect = 1.0; projMat = glm::perspective(60.0, aspect, 1.0, 50.0); gives an error in Win7/MS VS 2010 and...

EDIT: I fixed it with a few hours of google searching. If anyone could delete/lock the thread that'd be great :) (I hadn't declared a specific...

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...

Hello everybody! I just started working with OpenGL and I have this problem with glFrustum and gluLookAt. I have to obtain the first image but the...

Hello guys, I'm writing a simple code (using gedit on Ubuntu) in C to import a 3d model (.obj). In my code I'm using the library "glm.h" and...

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...

Hey Guys, I'm trying to learn GLSL but i'm getting stucked with a lot of basic matrix transformations and gl_ properties . Did you have some nice...

hello everyone i am making a falling objects game for my semester project and i am facing a problem with the code. i can't create the objects...

I am now working on import a 3ds model in my application, but I have a problem. I import the model and show it, but the model have no edge. It just a...

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 have problem with bitmap, when i run my code, the console show me the next error: undefined reference to `LoadDIBitmap' the library is defined in...

I've been attempting to code a normal Gaussian Blur shader which scales the image down to half the size in the vertex shader. The scaling works, but...

Hello everyone, I'm trying to get a depthmap of the scene using glreadpixels, mi command is it: glReadPixels(0, 0, img.cols, img.rows,...

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...

I am writing a hello world that draws a simple triangle and trying out VAO. GLuint vbo; GLuint vao; .....