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# OpenGL GLSL not working

## 4 posts in this topic

I have problem with glsl on windows 8 in Microsoft Visual Studio Express 2012 with Radeon. Even #version 150 is not recognized in code.

#version 150
#include <glm\ext.hpp>
#include <glm\glm.hpp>
#include <GL\glew.h>
#include <GL\glut.h>
#include <GL\GL.h>
#include <GL\GLU.h>
#include <GL\glfw.h>

in vec2 position;
out vec4 outColor;

int main()
{
vec3 commeo;
glfwInit();
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MAJOR, 3);
glfwOpenWindowHint(GLFW_OPENGL_VERSION_MINOR, 2);
glfwOpenWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

glfwOpenWindowHint(GLFW_WINDOW_NO_RESIZE, GL_TRUE);
glfwOpenWindow(800, 600, 0, 0, 0, 0, 0, 0, GLFW_WINDOW);
glfwSetWindowTitle("Crion World Alpha");
while( glfwGetWindowParam( GLFW_WINDOW ) )
{
glfwSwapBuffers();
}

if( glfwGetKey( GLFW_KEY_ESC ) == GLFW_PRESS )
return 0;
glewExperimental = GL_TRUE;
glewInit();
GLuint vertexBuffer;
glGenBuffers( 1, &vertexBuffer );

printf( "%u\n", vertexBuffer);

float vertices[] = {
0.0f,	0.5f,
0.5f,	-0.5f,
-0.5f,	-0.5f
};

GLuint vbo;
glGenBuffers( 1, &vbo); //generate 1 buffer
glBindBuffer( GL_ARRAY_BUFFER, vbo );
glBufferData( GL_ARRAY_BUFFER, sizeof( vertices ), vertices, GL_STATIC_DRAW );

glfwTerminate();
return 0;
}


I have errors:

	1	IntelliSense: unrecognized preprocessing directive	 /// #version 150
2	IntelliSense: identifier "in" is undefined
4	IntelliSense: identifier "out" is undefined
6	IntelliSense: identifier "vec3" is undefined
7	IntelliSense: identifier "vertexSource" is undefined	

opengl32.lib
glu32.lib
glut32.lib
glfwdll.lib
glew32d.lib

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#version 150

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I don't know how to create glsl object Edited by Dark Engineer
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There are plenty of resources on this! All I did was google glCreateProgram, but for somebody new to shader, try googling GLSL Tutorial!

Try these:
http://samplecodebank.blogspot.dk/2011/05/glcreateprogram-example.html
http://www.lighthouse3d.com/opengl/glsl/
http://www.clockworkcoders.com/oglsl/tutorials.html
The lighthouse3d ones are really good! You will create a GLSL program object by calling glCreateProgram. To this object, you can attach Vertex, Geometry and Fragment shaders.
To start off with, why not try a vertex shader?

Have a look at http://www.lighthouse3d.com/tutorials/glsl-tutorial/hello-world-in-glsl/.
It's not as difficult as it seems at first.
Good luck. Edited by SuperVGA
2

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