DOKK / manpages / debian 12 / s3d-doc / s3d_load_polygon_normals.3.en
S3D_LOAD_POLYGON_NOR(3) s3d Manual S3D_LOAD_POLYGON_NOR(3)

s3d_load_polygon_normals - add normals to polygon

#include <s3d.h>

int s3d_load_polygon_normals(int object, const float *nbuf, uint32_t start, uint16_t n);

Just as s3d_pep_polygon_normals(), with the difference you won't alter the latest n polygons but n polygons starting with index start.

Simon Wunderlich

Author of s3d
s3d