OpenGLUtil.java

package com.aincc.lib.util;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.ShortBuffer;

/**
 * 
 * <h3><b>OpenGLUtil</b></h3></br>
 * 
 * @author aincc@barusoft.com
 * @version 1.0.0
 * @since 1.0.0
 */
public class OpenGLUtil
{
	/**
	 * degree to radian 변환
	 * 
	 * @since 1.0.0
	 * @param degree
	 * @return the radian
	 */
	public static float d2r(float degree)
	{
		return degree * (float) Math.PI / 180f;
	}

	/**
	 * 
	 * @since 1.0.0
	 * @param v
	 * @return the FloatBuffer
	 */
	public static FloatBuffer toFloatBuffer(float[] v)
	{
		ByteBuffer buf = ByteBuffer.allocateDirect(v.length * 4);
		buf.order(ByteOrder.nativeOrder());
		FloatBuffer buffer = buf.asFloatBuffer();
		buffer.put(v);
		buffer.position(0);
		return buffer;
	}

	/**
	 * 
	 * @since 1.0.0
	 * @param v
	 * @return the ShortBuffer
	 */
	public static ShortBuffer toShortBuffer(short[] v)
	{
		ByteBuffer buf = ByteBuffer.allocateDirect(v.length * 2);
		buf.order(ByteOrder.nativeOrder());
		ShortBuffer buffer = buf.asShortBuffer();
		buffer.put(v);
		buffer.position(0);
		return buffer;
	}
}