Example usage for org.lwjgl.opengl GL11 glDrawElements

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glDrawElements.

Prototype

public static void glDrawElements(@NativeType("GLenum") int mode, @NativeType("GLsizei") int count,
        @NativeType("GLenum") int type, @NativeType("void const *") long indices) 

Source Link

Document

Constructs a sequence of geometric primitives by successively transferring elements for count vertices to the GL.

Usage

From source file:net.smert.frameworkgl.opengl.helpers.VertexBufferObjectHelper.java

License:Apache License

public void drawElements(int mode, int count, int type, long byteOffset) {
    GL11.glDrawElements(mode, count, type, byteOffset);
}

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From source file:opengl.test.object.CaroTable.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_TRIANGLES, 6, GL11.GL_UNSIGNED_INT, 0);

    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

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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
}

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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
}

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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
}

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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.//from  ww  w.ja  v a 2 s. co m
    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

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From source file:opengl.test.object.XO.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.glDrawElements(GL11.GL_TRIANGLES, this.indices.capacity(), GL11.GL_UNSIGNED_INT, 0);// capacity --> luon luon chua max
    //GL11./*from   ww  w  . j  a  va2  s. co  m*/
    GL20.glDisableVertexAttribArray(0);// disable 

    GL30.glBindVertexArray(0);// unbind vao

    this.unbind();// dsiable program
}

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From source file:org.ajgl.graphics.VertexArrays.java

License:Open Source License

/**
 * Draws the vertex array; Does not use redundant vertices. You need to enable 
 * {@link org.lwjgl.opengl.GL11#GL_VERTEX_ARRAY GL_VERTEX_ARRAY} before 
 * you can use this method./*from   ww w  .j a v  a  2  s.c o  m*/
 * @param beginMode - The OpenGL begin mode
 * @param dataType - The OpenGL dataType
 * @param vertexPointData - The number of points per vertex data (i.e. 1-1D, 2-2D, 3-3D)
 * @param vertexNumber - The number of vertices
 * @param first - The start point of the array
 * @param stride - The stride offset; used for interleaving data
 * @param vertices - The vertex vertices
 * @param indices - The index vertices
 */
@OpenGLInfo(fwdCompatible = false, openGLVersion = "1.1", status = "Release")
public static void drawElements(@BeginMode int beginMode, @GLDataType int dataType, int vertexPointData,
        int vertexNumber, int first, int stride, FloatBuffer vertices, ByteBuffer indices) {
    // point to and draw vertex array
    GL11.glVertexPointer(vertexPointData, stride, vertices);
    GL11.glDrawElements(beginMode, vertexNumber, dataType, indices);
}

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From source file:org.ajgl.graphics.VertexBufferedObject.java

License:Open Source License

/**
 * Draws a vertex buffered object; Uses redundant vertices. You need to enable 
 * {@link org.lwjgl.opengl.GL11#GL_VERTEX_ARRAY GL_VERTEX_ARRAY} before 
 * you can use this method.//from w  w w. ja  v a2s .  co  m
 * @param vertexHandler - The vertex buffered object vertex handler
 * @param vertexPointData - The number of points per vertex data (i.e. 1-1D, 2-2D, 3-3D)
 * @param vertexNumber - The number of vertices
 * @param stride - The stride offset; used for interleaving data
 * @param offSet - initial offset for the data
 * @param dataType - The OpenGL dataType
 * @param beginMode - The OpenGL begin mode
 */
public static void drawVboElements(int vertexHandler, int vertexPointData, int vertexNumber, int stride,
        int offSet, @GLDataType int dataType, @BeginMode int beginMode) {
    // bind vertex data
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vertexHandler);
    GL11.glVertexPointer(vertexPointData, dataType, stride, offSet);
    // Draw vertex buffer object
    GL11.glDrawElements(beginMode, vertexNumber, dataType, offSet);
}

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From source file:org.jtrfp.mtmx.draw.TerrainDrawer.java

License:Open Source License

private void drawTextured() {
    int[] sizes = vboUtil.getSizes();
    int len = sizes.length;
    long offset = 0;

    String[] textureNames = world.getTexData().getTextureNames();
    ITextureManager textureManager = engine.getResourceManager().getTextureManager();

    for (int i = 0; i < len; i++) {
        int size = sizes[i];
        if (size > 0) {

            String name = textureNames[i];
            ITexture texture = textureManager.get(name);
            texture.bind();/*from ww  w  .java  2s  .  com*/

            GL11.glDrawElements(renderMode, size, GL11.GL_UNSIGNED_INT, offset * (Integer.SIZE / 8));

            offset += size;
        }
    }
}

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