chickadee » gl-utils » mesh-vertex-set!

mesh-vertex-set! MESH ATTRIBUTE VERTEX VALUEprocedure

Set the VERTEXth vertex of the MESH’s attribute named ATTRIBUTE to the values provided by the srfi-4 numeric vector VALUE. VALUE must correspond to the type of the attribute, and should be the same length as the attribute. Using a VALUE that is too short is unsafe.

If mesh-make-vao! has been called already, mesh-vertex-set! should be called inside a with-mesh. If mesh-make-vao! was called with a static usage, mesh-vertex-set! will result in an error, since there is no longer any vertex data to set.