blen64-v2.1.py

# Blen64 v2.1
# @GCaldL
# -completely rewritten alorithim(faces)
# -added UV seam support
# -removed 16 vert limit per model!!!
# -added auto triangulate

import bpy
import os
import random

s =  100 #scale constant

bitshift = 6 #bitshift mod
tsize = 32 #texture size in pixels
loadlim = 30 #ammount of verts the sytem will load at a time 32 max limit

bpy.app.debug = True

bpy.ops.text.new()
o = bpy.data.texts["Text"]
o.name = "meshout"

obj = bpy.context.active_object
name = obj.name

vert = obj.data.vertices
poly = obj.data.polygons
uv = obj.data.uv_layers.active

#Info
o.write("/*\nModel: %s \n" % name)
o.write("Verts: %s \n" % len(vert))
o.write("Tris: %s \n" % len(poly))
o.write("Exported from blender using blen64.\n")
o.write("github.com/GCaldL/Blen64/\n\n")

###Triangulate
#Check for polys w/ more than 3 verts\
has_quads = False
for p in poly:
    o.write("%i\n" % len(p.vertices))
    if len(p.vertices) > 3:
        bpy.ops.object.editmode_toggle()
        bpy.ops.mesh.quads_convert_to_tris(quad_method='BEAUTY', ngon_method='BEAUTY')
        bpy.ops.object.editmode_toggle()
        break

#Vertex List
o.write("Vtx %s_VertList[] = {\n" % name)
for face in poly:
    for vert, loop in zip(face.vertices, face.loop_indices):
        coord = obj.data.vertices[vert].co
        uv = obj.data.uv_layers.active.data[loop].uv
        o.write("   { %.2f, %.2f, %.2f, 0, %i << 6, %i << 6, %i, %i, %i, %i},\n" % (coord.x*s, coord.y*s, coord.z*s, uv[0]*tsize, (1-uv[1])*tsize, random.randint(0,255), random.randint(0,255), random.randint(0,255), random.randint(0,255)))
o.write("};\n\n")

#Face List
o.write("Gfx %s_PolyList[] = {\n" % name)
o.write("   gsSPVertex(%s_VertList+%d,%d,0),\n" % (name, 0, loadlim)) #load the first x number of vertices
i = 0
offset = 0
for face in poly:
    #if the face being created contains a vert that has not been loaded into the buffer
    if i*3+2 > offset+loadlim:
        offset = i*3
        o.write("   gsSPVertex(%s_VertList+%d,%d,0),\n" % (name, offset, loadlim))
    
    #build faces:
    o.write("   gsSP1Triangle(%d, %d, %d, %d),\n" % (i*3, i*3+1, i*3+2, i*3))
    i += 1
o.write("};\n\n")