Example usage for org.lwjgl.opengl GL20 glShaderSource

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL20 glShaderSource.

Prototype

public static void glShaderSource(@NativeType("GLuint") int shader,
        @NativeType("GLchar const **") CharSequence string)

Source Link

Document

Sets the source code in shader to the source code in the array of strings specified by strings .

Usage

From source file:view.util.Shader.java

public void createShader() {
    id = GL20.glCreateShader(type);
    GL20.glShaderSource(id, text);
    GL20.glCompileShader(id);
}

From source file:voxicity.ChunkNode.java

License:Open Source License

int create_vert_shader(String filename) {
    int shader = GL20.glCreateShader(GL20.GL_VERTEX_SHADER);

    String code_text = "";
    String line;//from   w w  w. ja  v  a 2s  . c  o  m
    try {
        BufferedReader reader = new BufferedReader(new FileReader(filename));
        while ((line = reader.readLine()) != null) {
            code_text += line + "\n";
        }
    } catch (Exception e) {
        System.out.println("Reading vertex shader code failed");
        e.printStackTrace();
    }

    GL20.glShaderSource(shader, code_text);

    GL20.glCompileShader(shader);

    System.out.println("Compiling vertex shader: " + filename);
    if (GL20.glGetShader(shader, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE) {
        print_shader_log(shader);
    }

    if (check_shader_error(shader)) {
        GL20.glDeleteShader(shader);
        shader = 0;
    }

    return shader;
}

From source file:voxicity.ChunkNode.java

License:Open Source License

int create_frag_shader(String filename) {
    int shader = GL20.glCreateShader(GL20.GL_FRAGMENT_SHADER);

    String code_text = "";
    String line;/*  w ww  .  ja  v a 2s. c  o m*/
    try {
        BufferedReader reader = new BufferedReader(new FileReader(filename));
        while ((line = reader.readLine()) != null) {
            code_text += line + "\n";
        }
    } catch (Exception e) {
        System.out.println("Reading vertex shader code failed");
        e.printStackTrace();
    }

    GL20.glShaderSource(shader, code_text);

    System.out.println("Compiling fragment shader: " + filename);
    GL20.glCompileShader(shader);

    if (GL20.glGetShader(shader, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE) {
        print_shader_log(shader);
    }

    if (check_shader_error(shader)) {
        GL20.glDeleteShader(shader);
        shader = 0;
    }

    return shader;
}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Reads the two specified shader files and compiles the shaders into an OpenGL program format.
 * It is recommended that shaders be stored in the 'assets/shaders' directory (which is not present by default).
 * @param vertFile The {@link java.io.File} to read the vert shader from.
 * @param fragFile The {@link java.io.File} to read the frag shader from.
 * @return Returns the ShaderProgram object.
 *///from  w  w  w .ja  v  a  2s  . c o  m
public static ShaderProgram loadShaderProgram(File vertFile, File fragFile) {
    if (!vertFile.exists()) {
        System.err.println(
                "Could not load shader from file '" + vertFile.getAbsolutePath() + "'! File not found!");
        return null;
    }

    if (!fragFile.exists()) {
        System.err.println(
                "Could not load shader from file '" + fragFile.getAbsolutePath() + "'! File not found!");
        return null;
    }

    String vsrc = "";

    try {
        String inp;
        try (BufferedReader read = new BufferedReader(new FileReader(vertFile))) {
            while ((inp = read.readLine()) != null)
                vsrc = vsrc + inp + '\n';
        }
    } catch (IOException e) {
        System.err.println("Could not load shader from file '" + vertFile.getAbsolutePath() + "'! I/O Error!");
        return null;
    }

    String fsrc = "";

    try {
        String inp;
        try (BufferedReader read = new BufferedReader(new FileReader(fragFile))) {
            while ((inp = read.readLine()) != null)
                fsrc = fsrc + inp + '\n';
        }
    } catch (IOException e) {
        System.err.println("Could not load shader from file '" + fragFile.getAbsolutePath() + "'! I/O Error!");
        return null;
    }

    int prog = GL20.glCreateProgram();
    int vert = GL20.glCreateShader(GL20.GL_VERTEX_SHADER);
    int frag = GL20.glCreateShader(GL20.GL_FRAGMENT_SHADER);

    GL20.glShaderSource(vert, vsrc);
    GL20.glShaderSource(frag, fsrc);

    GL20.glCompileShader(vert);
    if (GL20.glGetShaderi(vert, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE) {
        System.err.println(
                "Could not load shader from file '" + vertFile.getAbsolutePath() + "'! Compile Error:");
        System.err.println(GL20.glGetShaderInfoLog(vert));
        return null;
    }

    GL20.glCompileShader(frag);
    if (GL20.glGetShaderi(frag, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE) {
        System.err.println(
                "Could not load shader from file '" + fragFile.getAbsolutePath() + "'! Compile Error:");
        System.err.println(GL20.glGetShaderInfoLog(frag));
        return null;
    }

    GL20.glAttachShader(prog, vert);
    GL20.glAttachShader(prog, frag);

    ShaderProgram ret = new ShaderProgram(prog, vert, frag);
    Game.getCurrentInstance().addToTrashCleanup(ret);
    return ret;
}