| static private SplitGlowAttenuationData ( ushort Data, GlowAttenuationMode &Mode, double &HalfDistance ) : void | ||
| Data | ushort | The data returned by GetGlowAttenuationData. |
| Mode | GlowAttenuationMode | The mode of glow attenuation. |
| HalfDistance | double | The half distance of glow attenuation. |
| return | void | |
/// <summary>Gets the current intensity glow intensity, using the glow attenuation factor</summary>
/// <param name="Vertices">The verticies to which the glow is to be applied</param>
/// <param name="Face">The face which these vertices make up</param>
/// <param name="GlowAttenuationData">The current glow attenuation</param>
/// <param name="CameraX">The X-position of the camera</param>
/// <param name="CameraY">The Y-position of the camera</param>
/// <param name="CameraZ">The Z-position of the camera</param>
/// <returns></returns>
private static double GetDistanceFactor(VertexTemplate[] Vertices, ref World.MeshFace Face, ushort GlowAttenuationData, double CameraX, double CameraY, double CameraZ)
{
if (Face.Vertices.Length == 0)
{
return(1.0);
}
World.GlowAttenuationMode mode;
double halfdistance;
World.SplitGlowAttenuationData(GlowAttenuationData, out mode, out halfdistance);
int i = (int)Face.Vertices[0].Index;
double dx = Vertices[i].Coordinates.X - CameraX;
double dy = Vertices[i].Coordinates.Y - CameraY;
double dz = Vertices[i].Coordinates.Z - CameraZ;
switch (mode)
{
case World.GlowAttenuationMode.DivisionExponent2:
{
double t = dx * dx + dy * dy + dz * dz;
return(t / (t + halfdistance * halfdistance));
}
case World.GlowAttenuationMode.DivisionExponent4:
{
double t = dx * dx + dy * dy + dz * dz;
t *= t;
halfdistance *= halfdistance;
return(t / (t + halfdistance * halfdistance));
}
default:
return(1.0);
}
}