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Copy pathvpython_load_obj_test.py
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131 lines (120 loc) · 6 KB
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from vpython import *
from pywavefront import Wavefront
box1 = Wavefront('box-V3F.obj')
box2 = Wavefront('box-C3F_V3F.obj')
box3 = Wavefront('box-N3F_V3F.obj')
box4 = Wavefront('box-T2F_V3F.obj')
box5 = Wavefront('box-T2F_C3F_V3F.obj')
box6 = Wavefront('box-T2F_N3F_V3F.obj')
scene = canvas()
scene.ambient=color.gray(0.5)
def obj_to_triangles(obj): # specify object
tris = [] # list of triangles to compound
ret = [] # will return a list obj compounds if necessary
# Iterate vertex data collected in each material
for name, mesh in obj.meshes.items():
vertices = 0
curtexture = None
curcol = vec(1,1,1)
curopacity = 1.0
# Contains the vertex format (string) such as "T2F_N3F_V3F"
# T2F, C3F, N3F and V3F may appear in this string
for material in mesh.materials:
# Contains the vertex format (string) such as "T2F_N3F_V3F"
# T2F, C3F, N3F and V3F may appear in this string
curopacity = material.transparency
#print(vars(material))
#print(vars(material.texture))
if material.vertex_format == 'V3F':
vertex_size = 3
elif material.vertex_format == 'C3F_V3F':
vertex_size = 6
elif material.vertex_format == 'N3F_V3F':
vertex_size = 6
elif material.vertex_format == 'T2F_V3F':
vertex_size = 5
curtexture = str(material.texture._path)
#curtexture = str(material.texture._search_path) + '/' + material.texture._name
elif material.vertex_format == 'T2F_C3F_V3F':
vertex_size = 8
curtexture = str(material.texture._path)
elif material.vertex_format == 'T2F_N3F_V3F':
vertex_size = 8
curtexture = str(material.texture._path)
verts = []
for i in range(len(material.vertices)//vertex_size):
if material.vertex_format == 'V3F':
curpos = vec(material.vertices[i*vertex_size],material.vertices[i*vertex_size+1],material.vertices[i*vertex_size+2])
verts.append( vertex(pos=curpos) )
elif material.vertex_format == 'C3F_V3F':
curcol = vec(material.vertices[i*vertex_size],material.vertices[i*vertex_size+1],material.vertices[i*vertex_size+2])
curpos = vec(material.vertices[i*vertex_size+3],material.vertices[i*vertex_size+4],material.vertices[i*vertex_size+5])
verts.append( vertex(pos=curpos,color=curcol) )
elif material.vertex_format == 'N3F_V3F':
normal = vec(material.vertices[i*vertex_size],material.vertices[i*vertex_size+1],material.vertices[i*vertex_size+2])
curpos = vec(material.vertices[i*vertex_size+3],material.vertices[i*vertex_size+4],material.vertices[i*vertex_size+5])
verts.append( vertex(pos=curpos,normal=normal) )
elif material.vertex_format == 'T2F_V3F':
curtexpos = vec(material.vertices[i*vertex_size],material.vertices[i*vertex_size+1],0)
curpos = vec(material.vertices[i*vertex_size+2],material.vertices[i*vertex_size+3],material.vertices[i*vertex_size+4])
verts.append( vertex(pos=curpos,texpos=curtexpos) )
elif material.vertex_format == 'T2F_C3F_V3F':
curtexpos = vec(material.vertices[i*vertex_size],material.vertices[i*vertex_size+1],0)
curcol = vec(material.vertices[i*vertex_size],material.vertices[i*vertex_size+1],material.vertices[i*vertex_size+2])
curpos = vec(material.vertices[i*vertex_size+5],material.vertices[i*vertex_size+6],material.vertices[i*vertex_size+7])
verts.append( vertex(pos=curpos, texpos=curtexpos, color=curcol) )
elif material.vertex_format == 'T2F_N3F_V3F':
curtexpos = vec(material.vertices[i*vertex_size],material.vertices[i*vertex_size+1],0)
normal = vec(material.vertices[i*vertex_size+2],material.vertices[i*vertex_size+3],material.vertices[i*vertex_size+4])
curpos = vec(material.vertices[i*vertex_size+5],material.vertices[i*vertex_size+6],material.vertices[i*vertex_size+7])
verts.append( vertex(pos=curpos,normal=normal,texpos=curtexpos) )
verts[-1].opacity = curopacity
if len(verts) == 3:
vertices += 3
tris.append(triangle(vs=verts))
verts=[]
if vertices > 64000:
print(vertices)
if curtexture is not None:
ret.append(compound(tris,texture=curtexture))
else:
ret.append(compound(tris))
tris = []
vertices = 0
if curtexture is not None:
ret.append(compound(tris,texture=curtexture))
else:
ret.append(compound(tris))
tris = []
vertices = 0
if len(ret) == 1: return ret[0]
else: return ret
boxes = []
boxes.append(obj_to_triangles(box1))
boxes[-1].visible = True
boxes[-1].up = vec(1,1,1)
boxes[-1].pos = vec(-4,2,0)
boxes.append(obj_to_triangles(box2))
boxes[-1].visible = True
boxes[-1].up = vec(1,1,1)
boxes[-1].pos = vec(0,2,0)
boxes.append(obj_to_triangles(box3))
boxes[-1].visible = True
boxes[-1].up = vec(1,1,1)
boxes[-1].pos = vec(4,2,0)
boxes.append(obj_to_triangles(box4))
boxes[-1].visible = True
boxes[-1].up = vec(1,1,1)
boxes[-1].pos = vec(-4,-2,0)
boxes.append(obj_to_triangles(box5))
boxes[-1].visible = True
boxes[-1].up = vec(1,1,1)
boxes[-1].pos = vec(0,-2,0)
boxes.append(obj_to_triangles(box6))
boxes[-1].visible = True
boxes[-1].up = vec(1,1,1)
boxes[-1].pos = vec(4,-2,0)
while True:
rate(60)
for b in boxes:
b.rotate(angle=.02, axis=vector(0,1,0))