Needs graphics formula

[Compucles]

I'm using OpenGL to procedurely map a 2D texture onto a 3D object. Using the vertices and normal vectors for each point, what's the formula for calculating the texture coordinates for each point?

[hamsterman]

Assigning texture coordinates to vertices is the job of whoever made that model. There is no general way to do it procedurally.

[Compucles]

Are you sure? I'm marking the vertices and normal vectors procedurally, so I would think there would be a formula to determine the texture coordinates of a point using the vertex and normal vector of that point, which would then procedurally be used to do the same for every point.

Basically, what I'm asking is: When you have the 3D coordinates and normal vector for a point, how do you calculate the 2D texture coordinates for that point?

[hanst99]

As hamsterman said - this isn't something you do procedurally. Actually, you'd normally not even calculate the normals procedurally. There's no "formula" to assign texture coordinates to a vertex because there is no conceivable "right" way of mapping a texture onto an object.

[hamsterman]

If you're generating vertices procedurally too, this must be a simple shape. In that case, if you explained what that shape is and what kind of texture you want to map on it, we may be able to help.

[Dinesh subedi]

ya I support the answer of @hamsterman Iam also ready to help.