Messages

1

Graphics / sfml2, opengl3.2 and glCreateShader

« on: June 22, 2011, 11:27:17 pm »

Ouch! Thanks

And I was messing about with GlResource::EnsureGlContext. I hope it counts as some kind of excuse that it wasn't neccessary in 1.6, the same code was working perfectly then. Can it be that 1.6 did a glewInit()?

2

Graphics / Similar Error with minimal Example

« on: June 22, 2011, 11:09:08 pm »

I have a similar problem on Ubuntu 11.04 with SFML2, OpenGL 3.3.0 NVIDIA 270.41.06 (nvidia-current restricted driver), with a Segmentation Fault on glCreateShader. In the GLEW header, this seems to some kind of function pointer, which is NULL. Messing around with some of my code and the opengl example, i was able to reduce to this:

Code: [Select]


#include <GL/glew.h>
#include <SFML/Graphics.hpp>
#include <SFML/OpenGL.hpp>

int main()
{
    sf::RenderWindow window(sf::VideoMode(800, 600), "SFML OpenGL", sf::Style::Default, sf::ContextSettings(32));

    sf::Image backgroundImage;
    backgroundImage.LoadFromFile("resources/background.jpg"); //comment out to get segfault
   
    GLuint vertex_shader;
    vertex_shader = glCreateShader(GL_VERTEX_SHADER);

    return EXIT_SUCCESS;
}


It seems that some OpenGL/GLEW initialisation is unclean - there is a segfault when the marked piece of code is commented out. Of course, you need to have some backround.jpg in working-directory/resources.

Is this just something I'll have to work around in SFML2/Go back to SFML 1.6 for, or has someone had this kind of problem before?[/code]