public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
//
gl.glClear(GL.GL_COLOR_BUFFER_BIT);
if (derefMethod == DRAWARRAY) {
gl.glDrawArrays(GL2.GL_TRIANGLES, 0, 6);
} else if (derefMethod == ARRAYELEMENT) {
gl.glBegin(GL2.GL_TRIANGLES);
gl.glArrayElement(2);
gl.glArrayElement(3);
gl.glArrayElement(5);
gl.glEnd();
} else if (derefMethod == DRAWELEMENTS) {
int indices[] = new int[] {0, 1, 3, 4};
if (indicesBuf == null) {
indicesBuf = GLBuffers.newDirectIntBuffer(indices.length);
indicesBuf.put(indices);
}
indicesBuf.rewind();
gl.glDrawElements(GL2.GL_POLYGON, 4, GL2.GL_UNSIGNED_INT, indicesBuf);
}
gl.glFlush();
// gl calls from C example's mouse routine are moved here
if (setupMethod == INTERLEAVED) setupInterleave(gl);
else if (setupMethod == POINTER) setupPointers(gl);
}
@Override
protected void render(GL g) {
GL2 gl = g.getGL2();
gl.glColor3f(.5f, .5f, .5f);
// =======================================\\
// Retained Mode \\
// =======================================\\
gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
gl.glVertexPointer(3, GL2.GL_FLOAT, 0, vertexBuffer);
if (normal) {
gl.glEnableClientState(GL2.GL_NORMAL_ARRAY);
gl.glNormalPointer(GL2.GL_FLOAT, 0, normalBuffer);
}
if (texture) {
gl.glEnableClientState(GL2.GL_TEXTURE_COORD_ARRAY);
gl.glTexCoordPointer(2, GL2.GL_FLOAT, 0, textureBuffer);
} else gl.glPolygonMode(GL2.GL_FRONT_AND_BACK, GL2.GL_LINE);
for (IntBuffer face : faces) {
if (face.capacity() == 3)
gl.glDrawElements(GL2.GL_TRIANGLES, face.capacity(), GL2.GL_UNSIGNED_INT, face);
else if (face.capacity() == 4)
gl.glDrawElements(GL2.GL_QUADS, face.capacity(), GL2.GL_UNSIGNED_INT, face);
else gl.glDrawElements(GL2.GL_POLYGON, face.capacity(), GL2.GL_UNSIGNED_INT, face);
}
gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);
if (normal) gl.glDisableClientState(GL2.GL_NORMAL_ARRAY);
if (texture) gl.glDisableClientState(GL2.GL_TEXTURE_COORD_ARRAY);
if (drawBox) bbox.draw(gl);
}