Example usage for org.lwjgl.opengl GL20 glEnableVertexAttribArray

Introduction

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

Prototype

public static void glEnableVertexAttribArray(@NativeType("GLuint") int index) 

Source Link

Document

Enables a generic vertex attribute array.

Usage

From source file:opengl.test.object.cube.wall.java

@Override
public void render() {
    this.bind();// use porgrma --> ket thuc disable program

    GL30.glBindVertexArray(this.vao);// bind vao -- > unbind vao
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, this.vbo);
    this.VertexAttribPointer();
    GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, this.ebo);

    GL20.glEnableVertexAttribArray(0);// set index ve 0 

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureID);

    GL11.glDrawElements(GL11.GL_TRIANGLE_STRIP, 6, GL11.GL_UNSIGNED_INT, 0);

    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

---

From source file:opengl.test.object.endgame.endgame.java

/**
 * Method nay duoc tach rieng ra tu initVertex 
 * Vi render nhieu doi tuong neu dung Multi vbo --> truoc khi draw phai bind lai vbo --> moi lan bind lai se phai set lai VertexAttribPointer
 *///from   w w w . j  a  va 2s  .  c o  m
@Override
protected void VertexAttribPointer() {
    if (this.vbo == 0)
        throw new RuntimeException("Chua khoi tao VBO");

    int positionID = GL20.glGetAttribLocation(programID, "position");
    GL20.glEnableVertexAttribArray(positionID);
    GL20.glVertexAttribPointer(positionID, 3, GL11.GL_FLOAT, false, 8 * 4, 0);// float size = 4 byte --> next is 3*4 byte
    // size = 3 --> position = x,y,z vec3

    int colorID = GL20.glGetAttribLocation(programID, "color");
    GL20.glEnableVertexAttribArray(colorID);
    GL20.glVertexAttribPointer(colorID, 3, GL11.GL_FLOAT, false, 8 * 4, 3 * 4);
    // size = 3 --> vec3

    int texcoordID = GL20.glGetAttribLocation(programID, "texcoord");
    GL20.glEnableVertexAttribArray(texcoordID);
    GL20.glVertexAttribPointer(texcoordID, 2, GL11.GL_FLOAT, false, 8 * 4, 6 * 4);
    // size = 2 --> vec2

}

---

From source file:opengl.test.object.endgame.endgame.java

public void render(int status) {

    this.bind();// use porgrma --> ket thuc disable program

    GL30.glBindVertexArray(this.vao);// bind vao -- > unbind vao
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, this.vbo);
    this.VertexAttribPointer();

    GL20.glEnableVertexAttribArray(0);// set index ve 0 
    if (status == endgame.win)
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureIDWIN);
    else if (status == endgame.lose)
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureIDLOSE);
    else//from w w w  .j a  v a  2 s  .c o m
        GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureIDDRAW);
    GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, this.size);
    //GL11.glDrawElements(GL11.GL_TRIANGLES, this.indices.capacity(), GL11.GL_UNSIGNED_INT, 0);// capacity --> luon luon chua max
    //GL11.
    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

---

From source file:opengl.test.object.image.java

@Override
public void render() {

    this.bind();// use porgrma --> ket thuc disable program

    GL30.glBindVertexArray(this.vao);// bind vao -- > unbind vao
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, this.vbo);
    GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, this.ebo);
    this.VertexAttribPointer();

    GL20.glEnableVertexAttribArray(0);// set index ve 0 

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureID);

    GL11.glDrawElements(GL11.GL_TRIANGLES, 6, GL11.GL_UNSIGNED_INT, 0);

    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

---

From source file:opengl.test.object.lineCube.java

@Override
protected void VertexAttribPointer() {
    if (this.vbo == 0)
        throw new RuntimeException("Chua khoi tao VBO");

    int positionID = GL20.glGetAttribLocation(programID, "position");
    GL20.glEnableVertexAttribArray(positionID);
    GL20.glVertexAttribPointer(positionID, 3, GL11.GL_FLOAT, false, 6 * 4, 0);// float size = 4 byte --> next is 3*4 byte

    int colorID = GL20.glGetAttribLocation(programID, "color");
    GL20.glEnableVertexAttribArray(colorID);
    GL20.glVertexAttribPointer(colorID, 3, GL11.GL_FLOAT, false, 6 * 4, 3 * 4);
}

---

From source file:opengl.test.object.lineCube.java

@Override
public void render() {
    this.bind();// use porgrma --> ket thuc disable program

    GL30.glBindVertexArray(this.vao);// bind vao -- > unbind vao
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, this.vbo);
    this.VertexAttribPointer();
    GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, this.ebo);

    GL20.glEnableVertexAttribArray(0);// set index ve 0 

    GL11.glDrawElements(GL11.GL_LINE_STRIP, 16, GL11.GL_UNSIGNED_INT, 0);

    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

---

From source file:opengl.test.object.table.table.java

@Override
public void render() {

    this.bind();// use porgrma --> ket thuc disable program

    GL30.glBindVertexArray(this.vao);// bind vao -- > unbind vao
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, this.vbo);
    this.VertexAttribPointer();

    GL20.glEnableVertexAttribArray(0);// set index ve 0 

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureID);
    GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, this.size);
    //GL11.glDrawElements(GL11.GL_TRIANGLES, this.indices.capacity(), GL11.GL_UNSIGNED_INT, 0);// capacity --> luon luon chua max
    //GL11.//  w  w w.j  av a2s .  c om
    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

---

From source file:opengl.test.object.tivi.tivi.java

@Override
public void render() {

    this.bind();// use porgrma --> ket thuc disable program

    GL30.glBindVertexArray(this.vao);// bind vao -- > unbind vao
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, this.vbo);
    this.VertexAttribPointer();

    GL20.glEnableVertexAttribArray(0);// set index ve 0 
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureID);

    GL11.glDrawArrays(GL11.GL_TRIANGLES, 0, this.size);
    //GL11.glDrawElements(GL11.GL_TRIANGLES, this.indices.capacity(), GL11.GL_UNSIGNED_INT, 0);// capacity --> luon luon chua max
    //GL11.// www .j  a v a2s  .c  o m
    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

---

From source file:opengl.test.object.tree.testobject.leaf.java

/**
 * Method nay duoc tach rieng ra tu initVertex 
 * Vi render nhieu doi tuong neu dung Multi vbo --> truoc khi draw phai bind lai vbo --> moi lan bind lai se phai set lai VertexAttribPointer
 *//*w w  w. j  a v  a 2s.co m*/
private void VertexAttribPointer() {
    if (this.vbo == 0)
        throw new RuntimeException("Chua khoi tao VBO");

    int positionID = GL20.glGetAttribLocation(programID, "position");
    GL20.glEnableVertexAttribArray(positionID);
    GL20.glVertexAttribPointer(positionID, 3, GL11.GL_FLOAT, false, 6 * 4, 0);// float size = 4 byte --> next is 3*4 byte
    // size = 3 --> position = x,y,z vec3

    int colorID = GL20.glGetAttribLocation(programID, "color");
    GL20.glEnableVertexAttribArray(colorID);
    GL20.glVertexAttribPointer(colorID, 3, GL11.GL_FLOAT, false, 6 * 4, 3 * 4);
    // size = 3 --> vec3

}

---

From source file:opengl.test.object.tree.testobject.leaf.java

public void render() {

    this.bind();// use porgrma --> ket thuc disable program

    GL30.glBindVertexArray(this.vao);// bind vao -- > unbind vao
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, this.vbo);
    GL15.glBindBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, this.ebo);
    this.VertexAttribPointer();

    GL20.glEnableVertexAttribArray(0);// set index ve 0 

    GL11.glDrawElements(GL11.GL_TRIANGLES, this.indices.capacity(), GL11.GL_UNSIGNED_INT, 0);// capacity --> luon luon chua max
    //GL11./*  w w  w. j a v a 2 s .co m*/
    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

---

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