private void setupPointers(GL2 gl) {
int vertices[] = new int[] {25, 25, 100, 325, 175, 25, 175, 325, 250, 25, 325, 325};
float colors[] =
new float[] {
1.0f, 0.2f, 0.2f, 0.2f, 0.2f, 1.0f, 0.8f, 1.0f, 0.2f, 0.75f, 0.75f, 0.75f, 0.35f, 0.35f,
0.35f, 0.5f, 0.5f, 0.5f
};
if (verticesBuf == null) { // IntBuffer tmpVerticesBuf
verticesBuf = GLBuffers.newDirectIntBuffer(vertices.length);
verticesBuf.put(vertices);
}
if (colorsBuf == null) {
colorsBuf = GLBuffers.newDirectFloatBuffer(colors.length);
colorsBuf.put(colors);
}
verticesBuf.rewind();
colorsBuf.rewind();
//
gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL2.GL_COLOR_ARRAY);
//
gl.glVertexPointer(2, GL2.GL_INT, 0, verticesBuf);
gl.glColorPointer(3, GL.GL_FLOAT, 0, colorsBuf);
}
@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);
}
