Exemplo n.º 1
0
void initElbeemMesh(struct Scene *scene, struct Object *ob,
                    int *numVertices, float **vertices,
                    int *numTriangles, int **triangles,
                    int useGlobalCoords, int modifierIndex)
{
	DerivedMesh *dm = NULL;
	MVert *mvert;
	MFace *mface;
	int countTris = 0, i, totvert, totface;
	float *verts;
	int *tris;

	dm = mesh_create_derived_index_render(scene, ob, CD_MASK_BAREMESH, modifierIndex);

	DM_ensure_tessface(dm);

	mvert = dm->getVertArray(dm);
	mface = dm->getTessFaceArray(dm);
	totvert = dm->getNumVerts(dm);
	totface = dm->getNumTessFaces(dm);

	*numVertices = totvert;
	verts = MEM_callocN(totvert * 3 * sizeof(float), "elbeemmesh_vertices");
	for (i = 0; i < totvert; i++) {
		copy_v3_v3(&verts[i * 3], mvert[i].co);
		if (useGlobalCoords) { mul_m4_v3(ob->obmat, &verts[i * 3]); }
	}
	*vertices = verts;

	for (i = 0; i < totface; i++) {
		countTris++;
		if (mface[i].v4) { countTris++; }
	}
	*numTriangles = countTris;
	tris = MEM_callocN(countTris * 3 * sizeof(int), "elbeemmesh_triangles");
	countTris = 0;
	for (i = 0; i < totface; i++) {
		int face[4];
		face[0] = mface[i].v1;
		face[1] = mface[i].v2;
		face[2] = mface[i].v3;
		face[3] = mface[i].v4;

		tris[countTris * 3 + 0] = face[0];
		tris[countTris * 3 + 1] = face[1];
		tris[countTris * 3 + 2] = face[2];
		countTris++;
		if (face[3]) {
			tris[countTris * 3 + 0] = face[0];
			tris[countTris * 3 + 1] = face[2];
			tris[countTris * 3 + 2] = face[3];
			countTris++;
		}
	}
	*triangles = tris;

	dm->release(dm);
}
Exemplo n.º 2
0
void initElbeemMesh(struct Scene *scene, struct Object *ob,
                    int *numVertices, float **vertices,
                    int *numTriangles, int **triangles,
                    int useGlobalCoords, int modifierIndex)
{
	DerivedMesh *dm;
	const MVert *mvert;
	const MLoop *mloop;
	const MLoopTri *looptri, *lt;
	int i, mvert_num, looptri_num;
	float *verts;
	int *tris;

	dm = mesh_create_derived_index_render(scene, ob, CD_MASK_BAREMESH, modifierIndex);

	mvert = dm->getVertArray(dm);
	mloop = dm->getLoopArray(dm);
	looptri = dm->getLoopTriArray(dm);
	mvert_num = dm->getNumVerts(dm);
	looptri_num = dm->getNumLoopTri(dm);

	*numVertices = mvert_num;
	verts = MEM_mallocN(mvert_num * sizeof(float[3]), "elbeemmesh_vertices");
	for (i = 0; i < mvert_num; i++) {
		copy_v3_v3(&verts[i * 3], mvert[i].co);
		if (useGlobalCoords) { mul_m4_v3(ob->obmat, &verts[i * 3]); }
	}
	*vertices = verts;

	*numTriangles = looptri_num;
	tris = MEM_mallocN(looptri_num * sizeof(int[3]), "elbeemmesh_triangles");
	for (i = 0, lt = looptri; i < looptri_num; i++, lt++) {
		tris[(i * 3) + 0] = mloop[lt->tri[0]].v;
		tris[(i * 3) + 1] = mloop[lt->tri[1]].v;
		tris[(i * 3) + 2] = mloop[lt->tri[2]].v;
	}
	*triangles = tris;

	dm->release(dm);
}