private float[] CalculateSRT3x4(BfresLibrary.TexSrt texSrt)
{
var m = CalculateSRT2x3(texSrt);
return(new float[12]
{
m[0], m[2], m[4], 0.0f,
m[1], m[3], m[5], 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
});
}
private float[] CalculateSRT2x3(BfresLibrary.TexSrt texSrt)
{
var scaling = texSrt.Scaling;
var translate = texSrt.Translation;
float cosR = (float)Math.Cos(texSrt.Rotation);
float sinR = (float)Math.Sin(texSrt.Rotation);
float scalingXC = scaling.X * cosR;
float scalingXS = scaling.X * sinR;
float scalingYC = scaling.Y * cosR;
float scalingYS = scaling.Y * sinR;
switch (texSrt.Mode)
{
default:
case BfresLibrary.TexSrtMode.ModeMaya:
return(new float[8]
{
scalingXC, -scalingYS,
scalingXS, scalingYC,
-0.5f * (scalingXC + scalingXS - scaling.X) - scaling.X * translate.X, -0.5f * (scalingYC - scalingYS + scaling.Y) + scaling.Y * translate.Y + 1.0f,
0.0f, 0.0f,
});
case BfresLibrary.TexSrtMode.Mode3dsMax:
return(new float[8]
{
scalingXC, -scalingYS,
scalingXS, scalingYC,
-scalingXC * (translate.X + 0.5f) + scalingXS * (translate.Y - 0.5f) + 0.5f, scalingYS *(translate.X + 0.5f) + scalingYC * (translate.Y - 0.5f) + 0.5f,
0.0f, 0.0f
});
case BfresLibrary.TexSrtMode.ModeSoftimage:
return(new float[8]
{
scalingXC, scalingYS,
-scalingXS, scalingYC,
scalingXS - scalingXC * translate.X - scalingXS * translate.Y, -scalingYC - scalingYS * translate.X + scalingYC * translate.Y + 1.0f,
0.0f, 0.0f,
});
}
}
