Differential D16893 Diff 59975 source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edge_fac.cc

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source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edge_fac.cc

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	static void extract_edge_fac_iter_poly_mesh(const MeshRenderData *mr,			static void extract_edge_fac_iter_poly_mesh(const MeshRenderData *mr,
	const MPoly *mp,			const MPoly *mp,
	const int mp_index,			const int mp_index,
	void *_data)			void *_data)
	{			{
	MeshExtract_EdgeFac_Data data = static_cast<MeshExtract_EdgeFac_Data >(_data);			MeshExtract_EdgeFac_Data data = static_cast<MeshExtract_EdgeFac_Data >(_data);

	const MLoop *mloop = mr->mloop;
	const int ml_index_end = mp->loopstart + mp->totloop;			const int ml_index_end = mp->loopstart + mp->totloop;
	for (int ml_index = mp->loopstart; ml_index < ml_index_end; ml_index += 1) {			for (int ml_index = mp->loopstart; ml_index < ml_index_end; ml_index += 1) {
	const MLoop *ml = &mloop[ml_index];			const int vert = mr->corner_verts[ml_index];
				const int edge = mr->corner_edges[ml_index];

	if (data->use_edge_render) {			if (data->use_edge_render) {
	const MEdge *med = &mr->medge[ml->e];			const MEdge *med = &mr->medge[edge];
	data->vbo_data[ml_index] = (med->flag & ME_EDGEDRAW) ? 255 : 0;			data->vbo_data[ml_index] = (med->flag & ME_EDGEDRAW) ? 255 : 0;
	}			}
	else {			else {

	/* Count loop per edge to detect non-manifold. */			/* Count loop per edge to detect non-manifold. */
	if (data->edge_loop_count[ml->e] < 3) {			if (data->edge_loop_count[edge] < 3) {
	data->edge_loop_count[ml->e]++;			data->edge_loop_count[edge]++;
	}			}
	if (data->edge_loop_count[ml->e] == 2) {			if (data->edge_loop_count[edge] == 2) {
	/* Manifold */			/* Manifold */
	const int ml_index_last = mp->totloop + mp->loopstart - 1;			const int ml_index_last = mp->totloop + mp->loopstart - 1;
	const int ml_index_other = (ml_index == ml_index_last) ? mp->loopstart : (ml_index + 1);			const int ml_index_other = (ml_index == ml_index_last) ? mp->loopstart : (ml_index + 1);
	const MLoop *ml_next = &mr->mloop[ml_index_other];			const int vert_next = mr->corner_verts[ml_index_other];
	float ratio = loop_edge_factor_get(mr->poly_normals[mp_index],			float ratio = loop_edge_factor_get(mr->poly_normals[mp_index],
	mr->vert_positions[ml->v],			mr->vert_positions[vert],
	mr->vert_normals[ml->v],			mr->vert_normals[vert],
	mr->vert_positions[ml_next->v]);			mr->vert_positions[vert_next]);
	data->vbo_data[ml_index] = ratio * 253 + 1;			data->vbo_data[ml_index] = ratio * 253 + 1;
	}			}
	else {			else {
	/* Non-manifold */			/* Non-manifold */
	data->vbo_data[ml_index] = 255;			data->vbo_data[ml_index] = 255;
	}			}
	}			}
	}			}
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