public static FrustumCorners New()
{
var fc = new FrustumCorners
{
nearCorners = new Vector3[4],
farCorners = new Vector3[4]
};
return(fc);
}
/// <summary>
/// 创建两个摄像机的裁面顶点数组
/// </summary>
private void InitFrustumCorners()
{
mainCamera_fcs = new FrustumCorners[lodLevel];
lightCamera_fcs = new FrustumCorners[lodLevel];
for (var i = 0; i < lodLevel; i++)
{
mainCamera_fcs[i] = FrustumCorners.New();
lightCamera_fcs[i] = FrustumCorners.New();
}
}
protected override void AddVerticesAndIndices()
{
int baseIndex = _vertices.Count;
FrustumCorners corners = _frustum.GetCorners();
_vertices.Add(new VertexPositionNormalTexture(corners.NearTopLeft, Vector3.One * 0.5f, Vector2.One * 0.5f));
_vertices.Add(new VertexPositionNormalTexture(corners.NearTopRight, Vector3.One * 0.5f, Vector2.One * 0.5f));
_vertices.Add(new VertexPositionNormalTexture(corners.NearBottomRight, Vector3.One * 0.5f, Vector2.One * 0.5f));
_vertices.Add(new VertexPositionNormalTexture(corners.NearBottomLeft, Vector3.One * 0.5f, Vector2.One * 0.5f));
_vertices.Add(new VertexPositionNormalTexture(corners.FarTopLeft, Vector3.Zero, Vector2.Zero));
_vertices.Add(new VertexPositionNormalTexture(corners.FarTopRight, Vector3.Zero, Vector2.Zero));
_vertices.Add(new VertexPositionNormalTexture(corners.FarBottomRight, Vector3.Zero, Vector2.Zero));
_vertices.Add(new VertexPositionNormalTexture(corners.FarBottomLeft, Vector3.Zero, Vector2.Zero));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 2));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 2));
_indices.Add((ushort)(baseIndex + 3));
_indices.Add((ushort)(baseIndex + 2));
_indices.Add((ushort)(baseIndex + 3));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 3));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 7));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 7));
_indices.Add((ushort)(baseIndex + 3));
_indices.Add((ushort)(baseIndex + 7));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 5));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 5));
_indices.Add((ushort)(baseIndex + 6));
_indices.Add((ushort)(baseIndex + 5));
_indices.Add((ushort)(baseIndex + 6));
_indices.Add((ushort)(baseIndex + 7));
_indices.Add((ushort)(baseIndex + 6));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 5));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 2));
_indices.Add((ushort)(baseIndex + 6));
_indices.Add((ushort)(baseIndex + 2));
}
protected override void AddVerticesAndIndices()
{
ushort baseIndex = checked ((ushort)_vertices.Count);
FrustumCorners corners = _frustum.GetCorners();
_vertices.Add(new WireframeVertex(corners.NearTopLeft, Color));
_vertices.Add(new WireframeVertex(corners.NearTopRight, Color));
_vertices.Add(new WireframeVertex(corners.NearBottomRight, Color));
_vertices.Add(new WireframeVertex(corners.NearBottomLeft, Color));
_vertices.Add(new WireframeVertex(corners.FarTopLeft, Color));
_vertices.Add(new WireframeVertex(corners.FarTopRight, Color));
_vertices.Add(new WireframeVertex(corners.FarBottomRight, Color));
_vertices.Add(new WireframeVertex(corners.FarBottomLeft, Color));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 2));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 2));
_indices.Add((ushort)(baseIndex + 3));
_indices.Add((ushort)(baseIndex + 2));
_indices.Add((ushort)(baseIndex + 3));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 3));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 0));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 7));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 7));
_indices.Add((ushort)(baseIndex + 3));
_indices.Add((ushort)(baseIndex + 7));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 5));
_indices.Add((ushort)(baseIndex + 4));
_indices.Add((ushort)(baseIndex + 5));
_indices.Add((ushort)(baseIndex + 6));
_indices.Add((ushort)(baseIndex + 5));
_indices.Add((ushort)(baseIndex + 6));
_indices.Add((ushort)(baseIndex + 7));
_indices.Add((ushort)(baseIndex + 6));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 5));
_indices.Add((ushort)(baseIndex + 1));
_indices.Add((ushort)(baseIndex + 2));
_indices.Add((ushort)(baseIndex + 6));
_indices.Add((ushort)(baseIndex + 2));
}
void OnDrawGizmos()
{
if (dirLightCamera == null)
{
return;
}
/*
* Gizmos.color = Color.blue;
* for (int i = 0; i < 4; i++)
* {
* Gizmos.DrawSphere(mainCamera_fcs.nearCorners[i], 0.1f);
* Gizmos.DrawSphere(mainCamera_fcs.farCorners[i], 0.1f);
* }
*
* Gizmos.color = Color.red;
* for (int i = 0; i < 4; i++)
* {
* Gizmos.DrawSphere(lightCamera_fcs.nearCorners[i], 0.1f);
* Gizmos.DrawSphere(lightCamera_fcs.farCorners[i], 0.1f);
* }
*
* Gizmos.color = Color.red;
* Gizmos.DrawLine(lightCamera_fcs.nearCorners[0], lightCamera_fcs.nearCorners[1]);
* Gizmos.DrawLine(lightCamera_fcs.nearCorners[1], lightCamera_fcs.nearCorners[2]);
* Gizmos.DrawLine(lightCamera_fcs.nearCorners[2], lightCamera_fcs.nearCorners[3]);
* Gizmos.DrawLine(lightCamera_fcs.nearCorners[3], lightCamera_fcs.nearCorners[0]);
*
* Gizmos.color = Color.green;
* Gizmos.DrawLine(lightCamera_fcs.farCorners[0], lightCamera_fcs.farCorners[1]);
* Gizmos.DrawLine(lightCamera_fcs.farCorners[1], lightCamera_fcs.farCorners[2]);
* Gizmos.DrawLine(lightCamera_fcs.farCorners[2], lightCamera_fcs.farCorners[3]);
* Gizmos.DrawLine(lightCamera_fcs.farCorners[3], lightCamera_fcs.farCorners[0]);
*
* Gizmos.DrawLine(lightCamera_fcs.nearCorners[0], lightCamera_fcs.farCorners[0]);
* Gizmos.DrawLine(lightCamera_fcs.nearCorners[1], lightCamera_fcs.farCorners[1]);
* Gizmos.DrawLine(lightCamera_fcs.nearCorners[2], lightCamera_fcs.farCorners[2]);
* Gizmos.DrawLine(lightCamera_fcs.nearCorners[3], lightCamera_fcs.farCorners[3]);
*/
FrustumCorners[] fcs = new FrustumCorners[4];
for (int k = 0; k < 4; k++)
{
Gizmos.color = Color.white;
Gizmos.DrawLine(mainCamera_Splits_fcs[k].nearCorners[1], mainCamera_Splits_fcs[k].nearCorners[2]);
fcs[k].nearCorners = new Vector3[4];
fcs[k].farCorners = new Vector3[4];
for (int i = 0; i < 4; i++)
{
fcs[k].nearCorners[i] = dirLightCameraSplits[k].transform.TransformPoint(lightCamera_Splits_fcs[k].nearCorners[i]);
fcs[k].farCorners[i] = dirLightCameraSplits[k].transform.TransformPoint(lightCamera_Splits_fcs[k].farCorners[i]);
}
Gizmos.color = Color.red;
Gizmos.DrawLine(fcs[k].nearCorners[0], fcs[k].nearCorners[1]);
Gizmos.DrawLine(fcs[k].nearCorners[1], fcs[k].nearCorners[2]);
Gizmos.DrawLine(fcs[k].nearCorners[2], fcs[k].nearCorners[3]);
Gizmos.DrawLine(fcs[k].nearCorners[3], fcs[k].nearCorners[0]);
Gizmos.color = Color.green;
Gizmos.DrawLine(fcs[k].farCorners[0], fcs[k].farCorners[1]);
Gizmos.DrawLine(fcs[k].farCorners[1], fcs[k].farCorners[2]);
Gizmos.DrawLine(fcs[k].farCorners[2], fcs[k].farCorners[3]);
Gizmos.DrawLine(fcs[k].farCorners[3], fcs[k].farCorners[0]);
Gizmos.DrawLine(fcs[k].nearCorners[0], fcs[k].farCorners[0]);
Gizmos.DrawLine(fcs[k].nearCorners[1], fcs[k].farCorners[1]);
Gizmos.DrawLine(fcs[k].nearCorners[2], fcs[k].farCorners[2]);
Gizmos.DrawLine(fcs[k].nearCorners[3], fcs[k].farCorners[3]);
}
}
