internal static List <object> InterpolateAttributes(float u, float v, Vertex a, Vertex b, Vertex c)
{
var outputAttributes = new List <object>();
var count = a.Attributes.Count;
for (int i = 1; i < count; ++i)
{
var aAttr = a.Attributes[i];
var bAttr = b.Attributes[i];
var cAttr = c.Attributes[i];
switch (aAttr)
{
case float attrib:
outputAttributes.Add(Barycentric.Interpolate(u, v, (float)aAttr, (float)bAttr, (float)cAttr));
break;
case Vector2 attrib:
outputAttributes.Add(Barycentric.Interpolate(u, v, (Vector2)aAttr, (Vector2)bAttr, (Vector2)cAttr));
break;
case Vector3 attrib:
outputAttributes.Add(Barycentric.Interpolate(u, v, (Vector3)aAttr, (Vector3)bAttr, (Vector3)cAttr));
break;
case Vector4 attrib:
outputAttributes.Add(Barycentric.Interpolate(u, v, (Vector4)aAttr, (Vector4)bAttr, (Vector4)cAttr));
break;
}
}
return(outputAttributes);
}
internal static float InterpolateZ(float u, float v, Vertex a, Vertex b, Vertex c) => Barycentric.Interpolate(u, v, a.Position.Z, b.Position.Z, c.Position.Z);