public IVertex LerpTo(IVertex _other, float t)
{
CVertex other = (CVertex)_other;
var newPos = OpenTK.Vector3.Lerp(this.Position, other.Position, t);
var newNormal = OpenTK.Vector3.Lerp(this.Normal, other.Normal, t).Normalized();
var newUV = OpenTK.Vector2.Lerp(this.UV, other.UV, t);
return(new CVertex {
Position = newPos, Normal = newNormal, UV = newUV
});
}
public CTriangle(OpenTK.Vector3[] v)
{
original_verts = new CVertex[4];
tex_index = 0;
flags = 0;
for (int i = 0; i < 4; i++)
{
original_verts[i] = new CVertex();
original_verts[i].Normal = new OpenTK.Vector3(0f, 1f, 0f);
original_verts[i].UV = new OpenTK.Vector2(0f, 0f);
original_verts[i].Position = v[i];
}
}
public CTriangle ExtractClippedTriangle(int tri_idx)
{
CVertex[] extracted_verts = new CVertex[3];
extracted_verts[0] = new CVertex {
Position = clipped_verts[0].Position, Normal = clipped_verts[0].Normal, UV = clipped_verts[0].UV
};
extracted_verts[1] = new CVertex {
Position = clipped_verts[tri_idx + 1].Position, Normal = clipped_verts[tri_idx + 1].Normal, UV = clipped_verts[tri_idx + 1].UV
};
extracted_verts[2] = new CVertex {
Position = clipped_verts[tri_idx + 2].Position, Normal = clipped_verts[tri_idx + 2].Normal, UV = clipped_verts[tri_idx + 2].UV
};
return(new CTriangle(extracted_verts, this.tex_index, this.flags));
}
public CTriangle(DTriangle dtri, OpenTK.Vector3 v1, OpenTK.Vector3 v2, OpenTK.Vector3 v3)
{
// Always start with 3 verts
original_verts = new CVertex[3];
tex_index = dtri.tex_index;
flags = dtri.flags;
for (int i = 0; i < 3; i++)
{
original_verts[i] = new CVertex();
original_verts[i].Normal = dtri.normal[i];
original_verts[i].UV = dtri.tex_uv[i];
}
original_verts[0].Position = v1;
original_verts[1].Position = v2;
original_verts[2].Position = v3;
}