On Tue, Nov 18, 2008 at 3:55 PM, tiloprobst <[EMAIL PROTECTED]> wrote:
>
> If you could post or send your .obj loader I would be grateful.
> Will McGugan's .obj loader is on the APress source code page:
> http://apress.com/book/downloadfile/3765 To be honest I don't know
> what of his source code relies on Pygame, maybe a good proof of the
> "don't import * " rule ;) His book is more aimed at starters, so it
> fits my needs, but he relies a bit too much on 2D and Pygame. His game
> objects on his website: http://www.willmcgugan.com/game-objects/
Hopefully the attachment comes through fine, let me know if it doesn't. This
is a fairly naive .obj loader, and it produces basic triangles lists (not
indexed or optimised).
>
> The install of Pygame failed as I mentioned, but it's not just because
> of that I don't want install it. pyglet was recommended on
> idevgames.com as a superior alternative to Pygame.
>From a fair bit of pygame experience, I concur.
- Somebody knows of a de-installer for Python? I'd like to get rid of
> the 2.3 system-wide install.
Don't do that, you will most likely break your OS X install - just modify
your PATH environment variable to find the new python first.
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import pyglet
from pyglet.gl import *
class Model:
def __init__(self, file):
self.load(file)
def load(self, fname):
f = open(fname,'rt')
lines = f.readlines()
f.close()
words = []
faces = 0
start = 0
buffers = []
vertArray = []
texArray = []
normArray = []
vertices = []
texcoords = []
normals = []
for line in lines:
words = line.split()
if len(words) < 1:
continue
if words[0] == 'usemtl':
if faces - start > 0:
buffers.append({'start' : start*3, 'end' : faces*3})
start = faces
if words[0] == 'v':
x = float(words[1])
y = float(words[2])
z = float(words[3])
vertArray += [x,y,z]
if words[0] == 'vt':
u = float(words[1])
v = float(words[2])
texArray += [u,v]
if words[0] == 'vn':
x = float(words[1])
y = float(words[2])
z = float(words[3])
normArray += [x,y,z]
if words[0] == 'f':
faces = faces + 1
for w in words[1:]:
ind = w.split('/')
for n in range(3):
vertices.append(vertArray[(int(ind[0])-1)*3 + n])
for n in range(2):
texcoords.append(texArray[(int(ind[1])-1)*2 + n])
for n in range(3):
normals.append(normArray[(int(ind[2])-1)*3 + n])
if faces-start > 0:
buffers.append({'start' : start*3, 'end' : faces*3})
self.vbuffers = []
for b in buffers:
start = b['start']
end = b['end']
print start, end, len(vertices), len(texcoords), len(normals)
buffer = pyglet.graphics.vertex_list( (end - start), ('v3f', vertices[start*3:end*3]), ('n3f', normals[start*3:end*3]), ('t2f', texcoords[start*2:end*2]) )
self.vbuffers.append(buffer)
def render(self):
for b in self.vbuffers:
b.draw(GL_TRIANGLES)
