VS_GS VS_Line(VS_GS input)
{
//invert y axis.
input.Pos.Y = -input.Pos.Y;
input.Size.Y = -input.Size.Y; // y position of 2nd line point.
return(input);
}
void GS(VS_GS[] input, TriangleStream <PS_IN> spriteStream)
{
PS_IN v = new PS_IN();
VS_GS g = input[0];
v.Color = g.Color;
Matrix2x2 rot = GetRotation(input[0].Rotation);
Vector2 origin = g.Origin.XY;
Vector2 pos = g.Pos.XY;
Vector2 size = g.Size.XY;
Vector2 uv = g.UV.XY;
Vector2 p;
for (int i = 0; i < 4; i++)
{
p = Mul(size * (spriteCorners[i] - origin), rot);
p += pos;
v.Pos = new Vector4(p, 0, 1);
v.Pos = Mul(v.Pos, wvp);
v.UV.X = uv[uvTable[i].X];
v.UV.Y = uv[uvTable[i].Y];
v.UV.Z = g.ArraySlice;
spriteStream.Append(v);
}
}
VS_GS VS_Tri(VS_GS input)
{
//invert y axis.
input.Pos.Y = -input.Pos.Y;
input.Size.Y = -input.Size.Y;
input.Origin.Y = -input.Origin.Y;
return(input);
}
VS_GS VS(VS_GS input)
{
input.UV.XZ /= textureSize.X;
input.UV.YW /= textureSize.Y;
//invert y axis.
input.Pos.Y = -input.Pos.Y;
// Invert Y origin
input.Origin.Y = -input.Origin.Y;
return(input);
}
VS_GS VS_Circle(VS_GS input)
{
//invert y axis.
input.Pos.Y = -input.Pos.Y;
return(input);
}
