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https://github.com/quantum5/punyverse.git
synced 2025-04-24 13:11:57 -04:00
We don't actually use _model.pyx anymore.
punyverse.model was optimized to be fast enough.
This commit is contained in:
Quantum
parent
7c3c644a6a
commit
98b894c846
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@ -1,362 +0,0 @@
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from uuid import uuid4
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import os
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import gzip
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import bz2
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import zipfile
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from libc.string cimport strcmp, strlen
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cimport cython
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include "_cyopengl.pxi"
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from punyverse.texture import load_texture
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def zip_open(file):
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zip = zipfile.ZipFile(file)
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return zip.open(zip.namelist()[0])
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openers = {
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'gz': gzip.open,
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'bz2': bz2.BZ2File,
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'zip': zip_open,
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}
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cdef enum:
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FACE_TRIANGLES
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FACE_QUADS
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cdef class Face(object):
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cdef public int type
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cdef public list verts, norms, texs, vertices, normals, textures
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def __init__(self, int type, list verts, list norms, list texs,
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list vertices, list normals, list textures):
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self.type = type
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self.verts = verts
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self.norms = norms
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self.texs = texs
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self.vertices = vertices
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self.normals = normals
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self.textures = textures
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cdef class Material(object):
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cdef public unicode name, texture
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cdef public tuple Ka, Kd, Ks
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cdef public double shininess
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def __init__(self, unicode name, unicode texture=None, tuple Ka=(0, 0, 0),
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tuple Kd=(0, 0, 0), tuple Ks=(0, 0, 0), double shininess=0.0):
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self.name = name
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self.texture = texture
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self.Ka = Ka
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self.Kd = Kd
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self.Ks = Ks
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self.shininess = shininess
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cdef class Group(object):
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cdef public unicode name
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cdef public tuple min
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cdef public Material material
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cdef public list faces, indices, vertices, normals, textures
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cdef public int idx_count
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def __init__(self, unicode name=None):
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if name is None:
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self.name = unicode(uuid4())
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else:
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self.name = name
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self.min = ()
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self.material = None
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self.faces = []
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self.indices = []
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self.vertices = []
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self.normals = []
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self.textures = []
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self.idx_count = 0
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def pack(self):
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min_x, min_y, min_z = 0, 0, 0
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for face in self.faces:
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for x, y, z in face.vertices:
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min_x = max(min_x, abs(x))
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min_y = max(min_y, abs(y))
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min_z = max(min_x, abs(z))
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self.min = (min_x, min_y, min_z)
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cdef class WavefrontObject(object):
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cdef unicode root
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cdef public list vertices, normals, textures, groups
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cdef public dict materials
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cdef unicode path
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cdef Material current_material
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cdef Group current_group
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def __init__(self, unicode path):
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self.path = path
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self.root = os.path.abspath(os.path.dirname(path))
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self.vertices = []
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self.normals = []
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self.textures = []
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self.groups = []
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self.materials = {}
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self.perform_io(self.path)
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cdef void new_material(self, list words):
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name = words[1].decode('utf-8')
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material = Material(name)
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self.materials[name] = material
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self.current_material = material
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cdef void Ka(self, list words):
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self.current_material.Ka = (float(words[1]), float(words[2]), float(words[3]))
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cdef void Kd(self, list words):
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self.current_material.Kd = (float(words[1]), float(words[2]), float(words[3]))
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cdef void Ks(self, list words):
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self.current_material.Ks = (float(words[1]), float(words[2]), float(words[3]))
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cdef void material_shininess(self, list words):
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self.current_material.shininess = min(float(words[1]), 125)
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cdef void material_texture(self, list words):
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self.current_material.texture = words[-1].decode('utf-8')
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@cython.nonecheck(False)
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cdef void vertex(self, list words):
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self.vertices.append((float(words[1]), float(words[2]), float(words[3])))
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@cython.nonecheck(False)
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cdef void normal(self, list words):
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self.normals.append((float(words[1]), float(words[2]), float(words[3])))
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cdef void texture(self, list words):
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cdef int l = len(words)
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cdef object x = 0, y = 0, z = 0
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if l >= 2:
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x = float(words[1])
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if l >= 3:
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# OBJ origin is at upper left, OpenGL origin is at lower left
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y = 1 - float(words[2])
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if l >= 4:
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z = float(words[3])
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self.textures.append((x, y, z))
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cdef void face(self, list words):
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cdef int l = len(words)
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cdef int type = -1
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cdef int vertex_count = l - 1
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cdef list face_vertices = [], face_normals = [], face_textures = []
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if vertex_count == 3:
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type = FACE_TRIANGLES
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else:
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type = FACE_QUADS
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cdef int current_value = -1, texture_len = len(self.textures)
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cdef list raw_faces, vindices = [], nindices = [], tindices = []
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for i in xrange(1, vertex_count + 1):
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raw_faces = words[i].split(b'/')
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l = len(raw_faces)
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current_value = int(raw_faces[0])
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vindices.append(current_value - 1)
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face_vertices.append(self.vertices[current_value - 1])
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if l == 1:
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continue
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if l >= 2 and raw_faces[1]:
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current_value = int(raw_faces[1])
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if current_value <= texture_len:
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tindices.append(current_value - 1)
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face_textures.append(self.textures[current_value - 1])
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if l >= 3 and raw_faces[2]:
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current_value = int(raw_faces[2])
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nindices.append(current_value - 1)
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face_normals.append(self.normals[current_value - 1])
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cdef Group group
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if self.current_group is None:
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self.current_group = group = Group()
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self.groups.append(group)
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else:
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group = self.current_group
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group.vertices += face_vertices
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group.normals += face_normals
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group.textures += face_textures
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idx_count = group.idx_count
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group.indices += (idx_count + 1, idx_count + 2, idx_count + 3)
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group.idx_count += 3
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group.faces.append(Face(type, vindices, nindices, tindices, face_vertices, face_normals, face_textures))
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cdef bint material(self, list words) except False:
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return self.perform_io(os.path.join(self.root, words[1].decode('utf-8')))
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cdef void use_material(self, list words):
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mat = words[1].decode('utf-8')
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try:
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self.current_group.material = self.materials[mat]
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except KeyError:
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print "Warning: material %s undefined, only %s defined." % (mat, self.materials)
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except AttributeError:
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print "Warning: no group"
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cdef void group(self, list words):
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name = words[1].decode('utf-8')
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group = Group(name)
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if self.groups:
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self.current_group.pack()
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self.groups.append(group)
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self.current_group = group
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cdef inline bint perform_io(self, unicode file) except False:
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cdef const char *type
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cdef list words
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cdef int hash, length
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ext = os.path.splitext(file)[1].lstrip('.')
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reader = openers.get(ext, lambda x: open(x, 'rb'))(file)
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with reader:
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for buf in reader:
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if not buf or buf.startswith((b'\r', b'\n', b'#')):
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continue # Empty or comment
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words = buf.split()
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type = words[0]
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length = strlen(type)
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if not length:
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continue
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elif length < 3:
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hash = type[0] << 8 | type[1]
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if hash == 0x7600: # v\0
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self.vertex(words)
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elif hash == 0x766e: # vn
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self.normal(words)
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elif hash == 0x7674: # vt
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self.texture(words)
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elif hash == 0x6600: # f
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self.face(words)
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elif hash == 0x6700: # g
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self.group(words)
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elif hash == 0x6f00: # o
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self.group(words)
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elif hash == 0x4b61: # Ka
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self.Ka(words)
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elif hash == 0x4b64: # Kd
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self.Kd(words)
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elif hash == 0x4b73: # Ks
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self.Ks(words)
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elif hash == 0x4e73: # Ns
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self.material_shininess(words)
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elif strcmp(type, b'mtllib') == 0:
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self.material(words)
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elif strcmp(type, b'usemtl') == 0:
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self.use_material(words)
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elif strcmp(type, b'newmtl') == 0:
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self.new_material(words)
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elif strcmp(type, b'map_Kd') == 0:
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self.material_texture(words)
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return True
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model_base = None
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def load_model(path):
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global model_base
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if model_base is None:
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model_base = os.path.join(os.path.dirname(__file__), 'assets', 'models')
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if not os.path.isabs(path):
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path = os.path.join(model_base, path)
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if not isinstance(path, unicode):
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path = path.decode('mbcs' if os.name == 'nt' else 'utf8')
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return WavefrontObject(path)
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@cython.nonecheck(False)
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cdef inline void point(Face f, WavefrontObject m, int tex_id, float sx, float sy, float sz, int n):
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cdef float x, y, z
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cdef tuple normal, texture
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if f.norms:
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normal = m.normals[f.norms[n]]
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glNormal3f(normal[0], normal[1], normal[2])
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if tex_id:
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texture = m.textures[f.texs[n]]
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glTexCoord2f(texture[0], texture[1])
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x, y, z = m.vertices[f.verts[n]]
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glVertex3f(x * sx, y * sy, z * sz)
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cpdef int model_list(WavefrontObject model, float sx=1, float sy=1, float sz=1, object rotation=(0, 0, 0)):
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for m, text in model.materials.iteritems():
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if text.texture:
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load_texture(os.path.join(model.root, text.texture))
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cdef int display = glGenLists(1)
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glNewList(display, GL_COMPILE)
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glPushMatrix()
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glPushAttrib(GL_CURRENT_BIT)
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cdef float pitch, yaw, roll
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cdef float kx, ky, kz
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pitch, yaw, roll = rotation
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glPushAttrib(GL_TRANSFORM_BIT)
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glRotatef(pitch, 1, 0, 0)
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glRotatef(yaw, 0, 1, 0)
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glRotatef(roll, 0, 0, 1)
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glPopAttrib()
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cdef Face f
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cdef Group g
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cdef int tex_id
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for g in model.groups:
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tex_id = load_texture(os.path.join(model.root, g.material.texture)) if (g.material and g.material.texture) else 0
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if tex_id:
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glEnable(GL_TEXTURE_2D)
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glBindTexture(GL_TEXTURE_2D, tex_id)
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else:
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glBindTexture(GL_TEXTURE_2D, 0)
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glDisable(GL_TEXTURE_2D)
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if g.material is not None:
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if g.material.Ka:
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kx, ky, kz = g.material.Ka
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glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, [kx, ky, kz, 1])
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if g.material.Kd:
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kx, ky, kz = g.material.Kd
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glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, [kx, ky, kz, 1])
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if g.material.Ks:
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kx, ky, kz = g.material.Ks
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glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, [kx, ky, kz, 1])
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glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, g.material.shininess)
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glBegin(GL_TRIANGLES)
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for f in g.faces:
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point(f, model, tex_id, sx, sy, sz, 0)
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point(f, model, tex_id, sx, sy, sz, 1)
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point(f, model, tex_id, sx, sy, sz, 2)
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if f.type == FACE_QUADS:
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point(f, model, tex_id, sx, sy, sz, 2)
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point(f, model, tex_id, sx, sy, sz, 3)
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point(f, model, tex_id, sx, sy, sz, 0)
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glEnd()
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if tex_id:
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glBindTexture(GL_TEXTURE_2D, 0)
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glDisable(GL_TEXTURE_2D)
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glPopAttrib()
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glPopMatrix()
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glEndList()
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return display
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1
setup.py
1
setup.py
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@ -124,7 +124,6 @@ setup(
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},
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ext_modules=cythonize([
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Extension('punyverse._glgeom', sources=[pyx_path('punyverse/_glgeom.pyx')], libraries=gl_libs),
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Extension('punyverse._model', sources=[pyx_path('punyverse/_model.pyx')], libraries=gl_libs),
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]) + extra_libs,
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cmdclass={'build_ext': build_ext},
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