GeometryLevel::BuildTangentArray

Defined in: C4GeometryLevel.h

Builds the array of tangent vectors for a geometry level.

Prototype

void BuildTangentArray(const GeometryLevel *inputLevel);

Parameters

geometryLevel The input geometry level.

Description

The BuildTangentArray function adds a tangent array to a geometry level. The vertex, normal, texture coordinate, and face information in the input geometry level is used to a calculate tangent vector and handedness for each vertex. All other array data from the input geometry level is copied to the output geometry level.