package com.jme3.util;
import com.jme3.scene.*;
/**
* Created by Nehon on 03/10/2016.
*/
public class TangentUtils {
public static void generateBindPoseTangentsIfNecessary(Mesh mesh){
if (mesh.getBuffer(VertexBuffer.Type.BindPosePosition) != null) {
VertexBuffer tangents = mesh.getBuffer(VertexBuffer.Type.Tangent);
if (tangents != null) {
VertexBuffer bindTangents = new VertexBuffer(VertexBuffer.Type.BindPoseTangent);
bindTangents.setupData(VertexBuffer.Usage.CpuOnly,
4,
VertexBuffer.Format.Float,
BufferUtils.clone(tangents.getData()));
if (mesh.getBuffer(VertexBuffer.Type.BindPoseTangent) != null) {
mesh.clearBuffer(VertexBuffer.Type.BindPoseTangent);
}
mesh.setBuffer(bindTangents);
tangents.setUsage(VertexBuffer.Usage.Stream);
}
}
}
}