}
}
@Override
protected void reshape(int w, int h) {
MatrixStack persMatrix = new MatrixStack();
persMatrix.perspective( 45.0f, (w / (float) h), zNear, zFar );
ProjectionBlock projData = new ProjectionBlock();
projData.cameraToClipMatrix = persMatrix.top();
glBindBuffer( GL_UNIFORM_BUFFER, projectionUniformBuffer );
glBufferSubData( GL_UNIFORM_BUFFER, 0, projData.fillAndFlipBuffer( mat4Buffer ) );
glBindBuffer( GL_UNIFORM_BUFFER, 0 );