model-converter-python/d3/model/mesh.py

161 lines
4.6 KiB
Python

class Material:
def __init__(self, name):
self.name = name
self.Ka = None
self.Kd = None
self.Ks = None
self.map_Kd = None
self.id = None
def init_texture(self):
import OpenGL.GL as gl
# Already initialized
if self.id is not None:
return
# If no map_Kd, nothing to do
if self.map_Kd is None:
return
try:
ix, iy, image = self.map_Kd.size[0], self.map_Kd.size[1], self.map_Kd.tobytes("raw", "RGBA", 0, -1)
except SystemError:
ix, iy, image = self.map_Kd.size[0], self.map_Kd.size[1], self.map_Kd.tobytes("raw", "RGBX", 0, -1)
self.id = gl.glGenTextures(1)
gl.glBindTexture(gl.GL_TEXTURE_2D, self.id)
gl.glPixelStorei(gl.GL_UNPACK_ALIGNMENT,1)
gl.glTexImage2D(
gl.GL_TEXTURE_2D, 0, 3, ix, iy, 0,
gl.GL_RGBA, gl.GL_UNSIGNED_BYTE, image
)
def bind(self):
from OpenGL import GL as gl
gl.glEnable(gl.GL_TEXTURE_2D)
gl.glTexParameterf(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER, gl.GL_NEAREST)
gl.glTexParameterf(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MIN_FILTER, gl.GL_NEAREST)
gl.glTexEnvf(gl.GL_TEXTURE_ENV, gl.GL_TEXTURE_ENV_MODE, gl.GL_DECAL)
gl.glBindTexture(gl.GL_TEXTURE_2D, self.id)
def unbind(self):
from OpenGL import GL as gl
gl.glDisable(gl.GL_TEXTURE_2D)
import PIL.Image
Material.DEFAULT_MATERIAL=Material('')
Material.DEFAULT_MATERIAL.Ka = 1.0
Material.DEFAULT_MATERIAL.Kd = 0.0
Material.DEFAULT_MATERIAL.Ks = 0.0
Material.DEFAULT_MATERIAL.map_Kd = PIL.Image.new("RGBA", (1,1), "white")
class MeshPart:
def __init__(self, parent):
self.parent = parent
self.material = None
self.vertex_vbo = None
self.tex_coord_vbo = None
self.normal_vbo = None
self.faces = []
def init_texture(self):
if self.material is not None:
self.material.init_texture()
def add_face(self, face):
self.faces.append(face)
def generate_vbos(self):
from OpenGL.arrays import vbo
from numpy import array
# Build VBO
v = []
n = []
t = []
for face in self.faces:
v1 = self.parent.vertices[face.a.vertex]
v2 = self.parent.vertices[face.b.vertex]
v3 = self.parent.vertices[face.c.vertex]
v += [[v1.x, v1.y, v1.z], [v2.x, v2.y, v2.z], [v3.x, v3.y, v3.z]]
if face.a.normal is not None:
n1 = self.parent.normals[face.a.normal]
n2 = self.parent.normals[face.b.normal]
n3 = self.parent.normals[face.c.normal]
n += [[n1.x, n1.y, n1.z], [n2.x, n2.y, n2.z], [n3.x, n3.y, n3.z]]
if face.a.tex_coord is not None:
t1 = self.parent.tex_coords[face.a.tex_coord]
t2 = self.parent.tex_coords[face.b.tex_coord]
t3 = self.parent.tex_coords[face.c.tex_coord]
t += [[t1.x, t1.y], [t2.x, t2.y], [t3.x, t3.y]]
self.vertex_vbo = vbo.VBO(array(v, 'f'))
if len(n) > 0:
self.normal_vbo = vbo.VBO(array(n, 'f'))
if len(t) > 0:
self.tex_coord_vbo = vbo.VBO(array(t, 'f'))
def draw(self):
if self.material is not None:
self.material.bind()
if self.vertex_vbo is not None:
self.draw_from_vbos()
else:
self.draw_from_arrays()
if self.material is not None:
self.material.unbind()
def draw_from_vbos(self):
import OpenGL.GL as gl
self.vertex_vbo.bind()
gl.glEnableClientState(gl.GL_VERTEX_ARRAY);
gl.glVertexPointerf(self.vertex_vbo)
self.vertex_vbo.unbind()
if self.normal_vbo is not None:
self.normal_vbo.bind()
gl.glEnableClientState(gl.GL_NORMAL_ARRAY)
gl.glNormalPointerf(self.normal_vbo)
self.normal_vbo.unbind()
if self.tex_coord_vbo is not None:
if self.material is not None:
self.material.bind()
self.tex_coord_vbo.bind()
gl.glEnableClientState(gl.GL_TEXTURE_COORD_ARRAY)
gl.glTexCoordPointerf(self.tex_coord_vbo)
self.tex_coord_vbo.unbind()
gl.glDrawArrays(gl.GL_TRIANGLES, 0, len(self.vertex_vbo.data) * 9)
gl.glDisableClientState(gl.GL_VERTEX_ARRAY)
gl.glDisableClientState(gl.GL_NORMAL_ARRAY)
gl.glDisableClientState(gl.GL_TEXTURE_COORD_ARRAY)
def draw_from_arrays(self):
pass