diff options
Diffstat (limited to 'io_mesh_ply/export_ply.py')
| -rw-r--r-- | io_mesh_ply/export_ply.py | 51 |
1 files changed, 16 insertions, 35 deletions
diff --git a/io_mesh_ply/export_ply.py b/io_mesh_ply/export_ply.py index cd50dbaf..812aeb54 100644 --- a/io_mesh_ply/export_ply.py +++ b/io_mesh_ply/export_ply.py @@ -34,44 +34,26 @@ def save_mesh(filepath, mesh, use_normals=True, use_uv_coords=True, use_colors=T def rvec2d(v): return round(v[0], 6), round(v[1], 6) - has_uv = bool(mesh.uv_layers) - has_vcol = bool(mesh.vertex_colors) - - if not has_uv: + if use_uv_coords and mesh.uv_layers: + active_uv_layer = mesh.uv_layers.active.data + else: use_uv_coords = False - if not has_vcol: - use_colors = False - if not use_uv_coords: - has_uv = False - if not use_colors: - has_vcol = False - - if has_uv: - active_uv_layer = mesh.uv_layers.active - if not active_uv_layer: - use_uv_coords = False - has_uv = False - else: - active_uv_layer = active_uv_layer.data - - if has_vcol: - active_col_layer = mesh.vertex_colors.active - if not active_col_layer: - use_colors = False - has_vcol = False - else: - active_col_layer = active_col_layer.data + if use_colors and mesh.vertex_colors: + active_col_layer = mesh.vertex_colors.active.data + else: + use_colors = False # in case color = uvcoord = uvcoord_key = normal = normal_key = None - mesh_verts = mesh.vertices # save a lookup - ply_verts = [] # list of dictionaries + mesh_verts = mesh.vertices # vdict = {} # (index, normal, uv) -> new index vdict = [{} for i in range(len(mesh_verts))] + ply_verts = [] ply_faces = [[] for f in range(len(mesh.polygons))] vert_count = 0 + for i, f in enumerate(mesh.polygons): smooth = not use_normals or f.use_smooth @@ -79,12 +61,12 @@ def save_mesh(filepath, mesh, use_normals=True, use_uv_coords=True, use_colors=T normal = f.normal[:] normal_key = rvec3d(normal) - if has_uv: + if use_uv_coords: uv = [ active_uv_layer[l].uv[:] for l in range(f.loop_start, f.loop_start + f.loop_total) ] - if has_vcol: + if use_colors: col = [ active_col_layer[l].color[:] for l in range(f.loop_start, f.loop_start + f.loop_total) @@ -98,11 +80,11 @@ def save_mesh(filepath, mesh, use_normals=True, use_uv_coords=True, use_colors=T normal = v.normal[:] normal_key = rvec3d(normal) - if has_uv: + if use_uv_coords: uvcoord = uv[j][0], uv[j][1] uvcoord_key = rvec2d(uvcoord) - if has_vcol: + if use_colors: color = col[j] color = ( int(color[0] * 255.0), @@ -115,7 +97,7 @@ def save_mesh(filepath, mesh, use_normals=True, use_uv_coords=True, use_colors=T vdict_local = vdict[vidx] pf_vidx = vdict_local.get(key) # Will be None initially - if pf_vidx is None: # same as vdict_local.has_key(key) + if pf_vidx is None: # Same as vdict_local.has_key(key) pf_vidx = vdict_local[key] = vert_count ply_verts.append((vidx, normal, uvcoord, color)) vert_count += 1 @@ -136,13 +118,11 @@ def save_mesh(filepath, mesh, use_normals=True, use_uv_coords=True, use_colors=T ) fw(f"element vertex {len(ply_verts)}\n") - fw( "property float x\n" "property float y\n" "property float z\n" ) - if use_normals: fw( "property float nx\n" @@ -164,6 +144,7 @@ def save_mesh(filepath, mesh, use_normals=True, use_uv_coords=True, use_colors=T fw(f"element face {len(mesh.polygons)}\n") fw("property list uchar uint vertex_indices\n") + fw("end_header\n") # Vertex data |