el tema es este tengo un modelo del 3ds max en formato .obj y tengo este cargador de textura ke se llama Texture2D.py:
from OpenGL.GL import *
from OpenGL.GLU import *
import Image
class Texture2D:
def __init__(self, file, wrap=GL_REPEAT, minFilter=GL_LINEAR, magFilter=GL_LINEAR, texenv=GL_MODULATE):
self.file = file
self.wrapS = wrap
self.wrapT = wrap
self.minFilter = minFilter
self.magFilter = magFilter
self.texenv = texenv
self.defined = False
self.id = 0
def define(self):
img = Image.open(self.file).transpose(Image.FLIP_TOP_BOT TOM).convert('RGBA')
width = 2
while width < img.size[0]: width *= 2
width /= 2
height = 2
while height < img.size[1]: height *= 2
height /= 2
if (width != img.size[0]) or (height != img.size[1]):
img = img.resize((width,height))
self.id = glGenTextures(1)
glBindTexture(GL_TEXTURE_2D, self.id)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, self.wrapS)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, self.wrapT)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, self.minFilter)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, self.magFilter)
if (self.minFilter == GL_NEAREST_MIPMAP_NEAREST) or \
(self.minFilter == GL_NEAREST_MIPMAP_LINEAR) or \
(self.minFilter == GL_LINEAR_MIPMAP_NEAREST) or \
(self.minFilter == GL_LINEAR_MIPMAP_LINEAR):
gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, img.size[0], img.size[1],
GL_RGBA, GL_UNSIGNED_BYTE, img.tostring())
else:
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, img.size[0], img.size[1],
0, GL_RGBA, GL_UNSIGNED_BYTE, img.tostring())
glBindTexture(GL_TEXTURE_2D, 0)
self.defined = True
def apply(self):
if not self.defined:
self.define()
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, self.texenv)
glBindTexture(GL_TEXTURE_2D, self.id)
if self.id != 0:
glEnable(GL_TEXTURE_2D)
else:
glDisable(GL_TEXTURE_2D)
def disable(self):
glBindTexture(GL_TEXTURE_2D, 0)
glDisable(GL_TEXTURE_2D)
despues tengo el cargador de modelo ke se llama LOADEROBJ.py:
import string
from OpenGL.GL import *
from Texture2D import *
class OBJFace:
def __init__(self, vertices, normals, texcoords, obj):
self.vertices = vertices
self.normals = normals
self.texcoords = texcoords
self.obj = obj
def draw(self):
glBegin(GL_POLYGON)
for i in range(0, len(self.vertices)):
if self.normals[i] > 0:
glNormal3fv(self.obj.normals[self.normals[i] - 1])
if self.texcoords[i] > 0:
glTexCoord2fv(self.obj.texcoords[self.texcoords[i] - 1])
glVertex3fv(self.obj.vertices[self.vertices[i] - 1])
glEnd()
class OBJUseMtl:
def __init__(self, mtl):
self.material = mtl
def draw(self):
if self.material.has_key('Ka'):
glMaterialfv(GL_FRONT, GL_AMBIENT, self.material['Ka'])
else:
glMaterialfv(GL_FRONT, GL_AMBIENT, [0, 0, 0, 0])
if self.material.has_key('Kd'):
glMaterialfv(GL_FRONT, GL_DIFFUSE, self.material['Kd'])
else:
glMaterialfv(GL_FRONT, GL_DIFFUSE, [0, 0, 0, 0])
if self.material.has_key('Ks'):
glMaterialfv(GL_FRONT, GL_SPECULAR, self.material['Ks'])
else:
glMaterialfv(GL_FRONT, GL_SPECULAR, [0, 0, 0, 0])
if self.material.has_key('Ns'):
glMaterialf(GL_FRONT, GL_SHININESS, self.material['Ns'])
if self.material.has_key('map_Kd'):
self.material['map_Kd'].apply()
else:
glDisable(GL_TEXTURE_2D)
class OBJFile:
def __init__(self, filename):
self.vertices = []
self.normals = []
self.texcoords = []
self.materials = {}
self.commands = []
file = open(filename, "r")
lines = file.readlines()
for line in lines:
values = string.split(line)
if len(values) < 1:
continue
if values[0] == 'v':
x = string.atof(values[1])
y = string.atof(values[2])
z = string.atof(values[3])
self.vertices.append([x,y,z])
elif values[0] == 'vn':
x = string.atof(values[1])
y = string.atof(values[2])
z = string.atof(values[3])
self.normals.append([x,y,z])
elif values[0] == 'vt':
s = string.atof(values[1])
t = string.atof(values[2])
self.texcoords.append([s,t])
elif values[0] == 'mtllib':
self.loadMtllib(values[1])
elif values[0] == 'f':
face = []
texcoords = []
norms = []
for v in values[1:]:
w = string.split(v,'/')
face.append(string.atoi(w[0]))
if len(w) >= 2 and len(w[1]) > 0:
texcoords.append(string.atoi(w[1]))
else:
texcoords.append(0)
AHORA HICE ESTE PROGRAMA:
from OpenGL.GL import*
from OpenGL.GLUT import*
from OpenGL.GLU import*
try:
from LOADEROBJ import*
except:
print "no se pudo cargar archivo"
def dibujar():
#limpia la pantalla y el buffer de profundidad
glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT)
glClearColor(1,1,1,1)
glLoadIdentity()
glutSwapBuffers()
def main():
glutInit(())
glutInitDisplayMode(GLUT_DEPTH|GLUT_DOUBLE|GLUT_RG BA)
glutInitWindowSize(600,600)
glutInitWindowPosition(0,0)
glutCreateWindow("hola")
glutDisplayFunc(dibujar)
glutMainLoop()
main()
EL PROBLEMA ES QUE ME SALE LA PANTALLA EN NEGRO Y NINGUN MODELO.
EN file=open(filename,"r") le coloque filename a "pelotita2.obj" por ejemplo ke es mi modelo PERO NO HAY CASO NO ME MUESTRA LA ESFERA LA TEXTURA LA ETENGO EN TGA. LUEGO PROBE CON UNA COPIA DE LA ESFERA EXPORTANDOLA NUEVAMENTE A .OBJ Y CON UNA TEXTURA CON UNA IMAGEN DE MAPA DE BITS PERO TAMPOCO ME CARGA EL MODELO: POR FAVOR QUE ALGUIEN ME RESPONDE ESTOY REALMENTE INTERESADO EN CARGAR UN MODELITO EN OPENGL CON PYTHON.