LWJGL Could Not Compile Shaders

Question

I am trying to load a VBO with projection by following the "The Quad with Projection" tutorial on the LWJGL website.

Here is my function for loading the shaders.

private int loadShader(String filename, int type) {
    StringBuilder shaderSource = new StringBuilder();
    int shaderID = 0;

    try {
        try (BufferedReader reader = new BufferedReader(new FileReader(filename))) {
            String line;
            while ((line = reader.readLine()) != null) {
                shaderSource.append(line).append("\n");
            }
        }
    } catch (IOException e) {
        System.err.println("Could not read file.");
        e.printStackTrace();
        System.exit(-1);
    }

    shaderID = GL20.glCreateShader(type);
    GL20.glShaderSource(shaderID, shaderSource);
    GL20.glCompileShader(shaderID);

    if (GL20.glGetShader(shaderID, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE) {
        System.err.println("Could not compile shader.");
        System.exit(-1);
    }

    this.exitOnGLError("loadShader");

    return shaderID;
}

When I run the program, this error occurs.

if (GL20.glGetShader(shaderID, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE) {
    System.err.println("Could not compile shader.");
    System.exit(-1);
}

Here is my shader code:

Vertex:

#version 150 core

uniform mat4 projectionMatrix;
uniform mat4 viewMatrix;
uniform mat4 modelMatrix;

in vec4 in_Position;
in vec4 in_Color;
in vec2 in_TextureCoord;

out vec4 pass_Color;
out vec2 pass_TextureCoord;

void main(void) {
    gl_Position = in_Position;
    // Override gl_Position with our new calculated position
    gl_Position = projectionMatrix * viewMatrix * modelMatrix * in_Position;

    pass_Color = in_Color;
    pass_TextureCoord = in_TextureCoord;
}

Fragment:

#version 150 core

uniform sampler2D texture_diffuse;

in vec4 pass_Color;
in vec2 pass_TextureCoord;

out vec4 out_Color;

void main(void) {
    out_Color = pass_Color;
    // Override out_Color with our texture pixel
    out_Color = texture2D(texture_diffuse, pass_TextureCoord);
}

Thanks for your help.

Answer 1

Your fragment shader is not valid, the function texture2D is not available in GLSL 1.50 core. Just use the function texture(). The compiler derives the type of the texture to sample from the type of sampler uniform it is called with.