internal void PrepareTextureForDrawDevice(IDrawDevice device)
{
System.Drawing.PointF[] points = new System.Drawing.PointF[_verticesPositions.Count];
/**
* Drawing texture based on displacement for each camera
**/
Vector3 start = _absoluteStart * device.GetScaleAtZ(_absoluteStart.Z);
Vector3 end = _absoluteEnd * device.GetScaleAtZ(_absoluteEnd.Z);
Vector2 tangent = (end - start).Xy;
float length = tangent.Length;
for (int i = 0; i < points.Length; i++)
{
points[i] = new System.Drawing.PointF(_verticesPositions[i].X * length, _verticesPositions[i].Y);
}
System.Drawing.Bitmap pixelData = new System.Drawing.Bitmap((int)MathF.Ceiling(length), (int)MathF.Ceiling(_sway2));
using (System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(pixelData))
{
g.Clear(System.Drawing.Color.Transparent);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
g.DrawLines(_pen, points);
}
if (!BatchInfos.ContainsKey(device))
{
BatchInfo bi = new BatchInfo(
DrawTechnique.Add,
Colors.White,
new ContentRef <Texture>(
new Texture(new ContentRef <Pixmap>(new Pixmap()))
{
FilterMin = TextureMinFilter.LinearMipmapLinear,
FilterMag = TextureMagFilter.LinearSharpenSgis,
WrapX = TextureWrapMode.ClampToEdge,
WrapY = TextureWrapMode.ClampToEdge,
TexSizeMode = Texture.SizeMode.Stretch
}));
BatchInfos.Add(device, new BoltData()
{
BatchInfo = bi
});
}
BoltData bd = BatchInfos[device];
Texture tx = bd.BatchInfo.MainTexture.Res;
tx.BasePixmap.Res.MainLayer.FromBitmap(pixelData);
tx.ReloadData();
bd.Start = start;
bd.End = end;
bd.IsReady = true;
}
//构造函数
public Bolt()
{
boltData = new BoltData();
utsMath = new BoltMath();
}
