///<summary>提交光源</summary>
public void applyLight()
{
IntPtr ipPara = Marshal.AllocCoTaskMem(Marshal.SizeOf(lightSturPara));
Marshal.StructureToPtr(lightSturPara, ipPara, false);
D3DManager.ChangeLightPara(parent.earth.earthkey, lightnum, ipPara);
Marshal.FreeCoTaskMem(ipPara);
}
///<summary>根据相机位置重计算缺省光源方向，并提交缺省光源</summary>
public void applyLights()
{
if (lightset == null)
{
return;
}
applyAmbientLight();
foreach (var item in lightset.lights)
{
IntPtr ipPara = Marshal.AllocCoTaskMem(Marshal.SizeOf(item.lightSturPara));
Marshal.StructureToPtr(item.lightSturPara, ipPara, false);
D3DManager.ChangeLightPara(earth.earthkey, item.num, ipPara);
Marshal.FreeCoTaskMem(ipPara);
}
//if (earth.earthManager.earthpara.SceneMode == ESceneMode.局部平面)
//{
// Vector3D vecGround = new Vector3D(0,0,-1);
// Vector3D vecY = new Vector3D(0, 1, 0);
// Vector3D vecX = new Vector3D(1, 0, 0);
// //右侧上光源正常效果
// Vector3D vecDir;
// RotateTransform3D rotate;
// rotate = new RotateTransform3D(new AxisAngleRotation3D(vecY, -60));
// vecDir = rotate.Transform(vecGround);
// rotate = new RotateTransform3D(new AxisAngleRotation3D(vecX, 60));
// vecDir = rotate.Transform(vecDir);
// //vecDir.Negate();
// vecDir.Normalize();
// lights[0].Direction = vecDir;
// lights[0].applyLight();
// //右侧上光源通透效果
// lights[1].Direction = vecDir;
// lights[1].applyLight();
// //正前方光源
// lights[2].Direction =vecY;
// lights[2].applyLight();
// lights[2].applyLight();
//}
//else
//{
// Vector3D vecGround = new Vector3D(earth.camera.cameraPosition.X, earth.camera.cameraPosition.Y, earth.camera.cameraPosition.Z);
// vecGround = vecGround * (vecGround.Length / Para.Radius);
// Vector3D vecY = new Vector3D(0, 1, 0);
// Vector3D vecAxis = Vector3D.CrossProduct(vecGround, vecY);
// vecAxis.Normalize();
// //右侧上光源正常效果
// Vector3D vecDir;
// RotateTransform3D rotate;
// rotate = new RotateTransform3D(new AxisAngleRotation3D(vecAxis, -60));
// vecDir = rotate.Transform(vecGround);
// rotate = new RotateTransform3D(new AxisAngleRotation3D(vecGround, 60));
// vecDir = rotate.Transform(vecDir);
// vecDir.Negate();
// vecDir.Normalize();
// lights[0].Direction = vecDir;
// lights[0].applyLight();
// //右侧上光源通透效果
// rotate = new RotateTransform3D(new AxisAngleRotation3D(vecAxis, -60));
// vecDir = rotate.Transform(vecGround);
// rotate = new RotateTransform3D(new AxisAngleRotation3D(vecGround, 60));
// vecDir = rotate.Transform(vecDir);
// vecDir.Negate();
// vecDir.Normalize();
// lights[1].Direction = vecDir;
// lights[1].applyLight();
// //正前方光源
// rotate = new RotateTransform3D(new AxisAngleRotation3D(vecAxis, -60));
// vecDir = rotate.Transform(vecGround);
// //rotate = new RotateTransform3D(new AxisAngleRotation3D(vecGround, 60));
// //vecDir = rotate.Transform(vecDir);
// vecDir.Negate();
// vecDir.Normalize();
// lights[2].Direction = vecDir;
// lights[2].applyLight();
//}
}