protected override void ThreadMission_Pixel(int i, int j)
{
base.ThreadMission_Pixel(i, j);
Vector2 uv = SWTextureProcess.TexUV(texWidth, texHeight, i, j);
for (int k = 0; k < info.pts.Count - 1; k++)
{
var p0 = info.pts [SWTextureProcess.LoopID(k - 1, info.pts.Count)];
var p1 = info.pts [SWTextureProcess.LoopID(k, info.pts.Count)];
var p2 = info.pts [SWTextureProcess.LoopID(k + 1, info.pts.Count)];
float pcg = SWTextureProcess.PointOnSegPcgSign(uv, p1.uv, p2.uv);
pcg = p1.pcg + (p2.pcg - p1.pcg) * pcg;
float disSeg = SWTextureProcess.Point2SegDis(uv, p1.uv, p2.uv);
float disLineSign = SWTextureProcess.Point2LineDisSign(uv, p1.uv, p2.uv);
disLineSign = -disLineSign;
float g = (disLineSign / size + 1) * 0.5f;
float b = 0;
float a = GreenToAlpha(g);
//first seg cap
if (k == 0)
{
if (disSeg <= size)
{
if (Vector2.Dot(uv - p2.pre, p1.uv - p2.pre) >= 0)
{
texColorBuffer [(texHeight - j - 1) * texWidth + i] = new Color(pcg, g, b, a);
}
}
}
//last seg cap
else if (k == info.pts.Count - 2)
{
if (disSeg <= size)
{
if (Vector2.Dot(uv - p1.after, p2.uv - p1.after) >= 0)
{
texColorBuffer [(texHeight - j - 1) * texWidth + i] = new Color(pcg, g, b, a);
}
}
}
else
{
if (SWTextureProcess.PointInSeg(uv, p1.after, p2.pre, size))
{
texColorBuffer [(texHeight - j - 1) * texWidth + i] = new Color(pcg, g, b, a);
}
}
if (k == 0)
{
if (disSeg <= size)
{
if (Vector2.Dot(uv - p1.uv, p2.uv - p1.uv) <= 0)
{
float disCenter = (uv - p1.uv).magnitude;
if (disCenter / size > 1 - threhold * 2)
{
a = 1 - (disCenter / size - (1 - threhold * 2)) / (threhold * 2);
texColorBuffer [(texHeight - j - 1) * texWidth + i] = new Color(
texColorBuffer [(texHeight - j - 1) * texWidth + i].r,
texColorBuffer [(texHeight - j - 1) * texWidth + i].g,
texColorBuffer [(texHeight - j - 1) * texWidth + i].b,
a
);
}
}
}
}
if (k == info.pts.Count - 2 || info.pts.Count == 2)
{
if (disSeg <= size)
{
if (Vector2.Dot(uv - p2.uv, p1.uv - p2.uv) <= 0)
{
float disCenter = (uv - p2.uv).magnitude;
if (disCenter / size > 1 - threhold * 2)
{
a = 1 - (disCenter / size - (1 - threhold * 2)) / (threhold * 2);
texColorBuffer [(texHeight - j - 1) * texWidth + i] = new Color(
texColorBuffer [(texHeight - j - 1) * texWidth + i].r,
texColorBuffer [(texHeight - j - 1) * texWidth + i].g,
texColorBuffer [(texHeight - j - 1) * texWidth + i].b,
a
);
}
}
}
}
}
}