def makeNoise3D(self,size=32, c = 1, type = GL_RED):
texels=[]
for i in range(size):
arr2 = []
for j in range(size):
arr = []
for k in range(size):
arr.append(random())
arr2.append(arr)
texels.append(arr2)
self.smoothNoise3D(size, 2, texels)
for i in range(size):
for j in range(size):
for k in range(size):
texels[i][j][k] = int(255 * texels[i][j][k])
texture = 0
glBindTexture(GL_TEXTURE_3D_EXT, texture)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_WRAP_R_EXT, GL_REPEAT)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_WRAP_S, GL_REPEAT)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_WRAP_T, GL_REPEAT)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexImage3DEXT(GL_TEXTURE_3D_EXT, 0, c,size, size, size, 0, type, GL_UNSIGNED_BYTE, texels)
return texture
def loadTex3D(self, fname, type = GL_RED):
file = os.path.join(self.workdir,fname)
if os.path.exists(file):
noise = open(file).read()
size = int(len(noise)**(1/3.0))
else:
Log.debug("Can't load %s; generating random 3D noise instead." % file)
return self.makeNoise3D(16)
#self.smoothNoise3D(size, 2, texels)
#self.smoothNoise3D(size, 4, texels)
texture = 0
glBindTexture(GL_TEXTURE_3D_EXT, texture)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_WRAP_S, GL_REPEAT)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_WRAP_T, GL_REPEAT)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_WRAP_R_EXT, GL_REPEAT)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameterf(GL_TEXTURE_3D_EXT, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexImage3DEXT(GL_TEXTURE_3D_EXT, 0, 1,size, size, size, 0, type, GL_UNSIGNED_BYTE, noise)
return texture
