On Fri, Sep 21, 2007 at 10:48:00AM +0100, development wrote:
> Hi everyone,
> I've been trying to get vertex normals to work for sometime now, as
> the provided face ones seem a little flat. I noticed in he documentation a
> function called
> void lib3ds_mesh_calculate_normals which is meant to calculate the vertex
> normals however I have no idea how to use this, I've searched google but to
> no avail. I could find only one example but this caused an error, it
> declared Lib3dsVector *normalL = malloc(3*sizeof(Lib3dsVector)*mesh->faces);
> in the function which isn't allowed in C (as far as I can see). Thanks
I haven't got the slightest clue as to which part of: "Lib3dsVector
*normalL = malloc(3*sizeof(Lib3dsVector)*mesh->faces);" you think is not
"allowed" in C ... Actually it's a perfectly reasonable C expression
(provided that Lib3dsVector is defined, which is by lib3ds).
Actually my old code resembles that a lot:
normal_count = 3 * mesh->faces;
if(!(normals = malloc(normal_count * sizeof *normals))) {
fprintf(stderr, "memory allocation failed\n");
lib3ds_file_free(file);
return -1;
}
lib3ds_mesh_calculate_normals(mesh, normals);
--
John Tsiombikas (Nuclear / Mindlapse)
http://nuclear.sdf-eu.org/
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