PoC gltf file loads without errors

pull/1587/head
Piero Toffanin 2022-10-19 22:01:21 -04:00
rodzic ff31f9b0dd
commit cda8f227b1
2 zmienionych plików z 39 dodań i 13 usunięć

Wyświetl plik

@ -1,5 +1,6 @@
import os
import rasterio
from rasterio.io import MemoryFile
import warnings
import numpy as np
import pygltflib
@ -61,6 +62,11 @@ def load_obj(obj_path, _info=print):
cv, ct = map(int, c.split("/")[0:2])
faces[current_material].append((av - 1, bv - 1, cv - 1, at - 1, bt - 1, ct - 1))
if len(vertices) > len(uvs):
# Pad with empty UV coordinates
add_uvs = len(vertices) - len(uvs)
uvs += [[0,0]] * add_uvs
obj['vertices'] = np.array(vertices, dtype=np.float32)
obj['uvs'] = np.array(uvs, dtype=np.float32)
obj['normals'] = np.array(normals, dtype=np.float32)
@ -89,9 +95,10 @@ def load_mtl(mtl_file, obj_base_path, _info=print):
_info("Loading %s" % map_kd_filename)
mats[current_mtl] = True
# with rasterio.open(map_kd, 'r') as r:
# mats[current_mtl] = r.read()
with MemoryFile() as memfile:
with rasterio.open(map_kd, 'r') as r:
mats[current_mtl] = r.read()
# TODO: copy code from export-rgb (webodm)
return mats
@ -100,22 +107,25 @@ def obj2glb(input_obj, output_glb, _info=print):
vertices = obj['vertices']
uvs = obj['uvs']
normals = obj['normals']
vertices_blob = vertices.tobytes()
uvs_blob = uvs.tobytes()
faces = obj['faces']['material0000']
material = obj['materials']['material0000']
print(material.shape)
print(material.)
exit(1)
# TODO: all faces
faces = np.array(faces, dtype=np.uint32)
#faces = faces[:2] # TODO REMOVE
#print(faces)
indices = faces[:,0:3]
uv_indices = faces[:,3:6]
indices = faces[:,0:3].flatten()
uv_indices = faces[:,3:6].flatten()
if faces.shape[1] == 9:
normal_indices = faces[:,6:9]
normal_indices = faces[:,6:9].flatten()
else:
normal_indices = None
@ -124,7 +134,7 @@ def obj2glb(input_obj, output_glb, _info=print):
indices_blob = indices.tobytes()
uv_indices_blob = uv_indices.tobytes()
bin = vertices_blob + uvs_blob + indices_blob + uv_indices_blob
binary = vertices_blob + uvs_blob + indices_blob + uv_indices_blob
gltf = pygltflib.GLTF2(
scene=0,
@ -134,11 +144,20 @@ def obj2glb(input_obj, output_glb, _info=print):
pygltflib.Mesh(
primitives=[
pygltflib.Primitive(
attributes=pygltflib.Attributes(POSITION=0, TEXCOORD_0=1), indices=2
attributes=pygltflib.Attributes(POSITION=0, TEXCOORD_0=1), indices=2, material=0
)
]
)
],
materials=[
],
textures=[
pygltflib.Texture(source=0, sampler=0)
],
images=[
pygltflib.Image(bufferView=0, mimeType="image/png") # TODO: use JPG
],
accessors=[
pygltflib.Accessor(
bufferView=0,
@ -197,15 +216,21 @@ def obj2glb(input_obj, output_glb, _info=print):
byteLength=len(uv_indices_blob),
target=pygltflib.ELEMENT_ARRAY_BUFFER,
),
pygltflib.BufferView(
buffer=0,
byteOffset=len(vertices_blob) + len(uvs_blob) + len(indices_blob) + len(uv_indices_blob),
byteLength=len(texture_blob),
target=pygltflib.ARRAY_BUFFER
)
],
buffers=[
pygltflib.Buffer(
byteLength=len(bin)
byteLength=len(binary)
)
],
)
gltf.set_binary_blob(bin)
gltf.set_binary_blob(binary)
gltf.save(output_glb)
print("OK")

Wyświetl plik

@ -31,3 +31,4 @@ xmltodict==0.12.0
fpdf2==2.4.6
Shapely==1.7.1
onnxruntime==1.12.1
pygltflib==1.15.3