render.py

# ##### BEGIN GPL LICENSE BLOCK #####
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License
#  as published by the Free Software Foundation; either version 2
#  of the License, or (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software Foundation,
#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####

# <pep8 compliant>

import bpy
import subprocess
import os
import sys
import time
import math
from math import atan, pi, degrees, sqrt

import platform as pltfrm
if pltfrm.architecture()[0] == "64bit":
    bitness = 64
else:
    bitness = 32


##############################SF###########################
##############find image texture
def splitExt(path):
    dotidx = path.rfind(".")
    if dotidx == -1:
        return path, ""
    else:
        return path[dotidx:].upper().replace(".", "")


def imageFormat(imgF):
    ext = ""
    ext_orig = splitExt(imgF)
    if ext_orig == 'JPG' or ext_orig == 'JPEG':
        ext = "jpeg"
    elif ext_orig == 'GIF':
        ext = "gif"
    elif ext_orig == 'TGA':
        ext = "tga"
    elif ext_orig == 'IFF':
        ext = "iff"
    elif ext_orig == 'PPM':
        ext = "ppm"
    elif ext_orig == 'PNG':
        ext = "png"
    elif ext_orig == 'SYS':
        ext = "sys"
    elif ext_orig in ('TIFF', 'TIF'):
        ext = "tiff"
    elif ext_orig == 'EXR':
        ext = "exr"  # POV3.7 Only!
    elif ext_orig == 'HDR':
        ext = "hdr"  # POV3.7 Only! --MR

    print(imgF)
    if not ext:
        print(" WARNING: texture image  format not supported ")  # % (imgF , "")) #(ext_orig)))

    return ext


def imgMap(ts):
    image_map = ""
    if ts.mapping == 'FLAT':
        image_map = "map_type 0 "
    elif ts.mapping == 'SPHERE':
        image_map = "map_type 1 "  # map_type 7 in megapov
    elif ts.mapping == 'TUBE':
        image_map = "map_type 2 "
    #elif ts.mapping=="?":
    #    image_map = " map_type 3 "  # map_type 3 and 4 in development (?) for POV-Ray, currently they just seem to default back to Flat (type 0)
    #elif ts.mapping=="?":
    #    image_map = " map_type 4 "  # map_type 3 and 4 in development (?) for POV-Ray, currently they just seem to default back to Flat (type 0)
    if ts.texture.use_interpolation:
        image_map += " interpolate 2 "
    if ts.texture.extension == 'CLIP':
        image_map += " once "
    #image_map += "}"
    #if ts.mapping=='CUBE':
    #    image_map+= "warp { cubic } rotate <-90,0,180>"  # no direct cube type mapping. Though this should work in POV 3.7 it doesn't give that good results(best suited to environment maps?)
    #if image_map == "":
    #    print(" No texture image  found ")
    return image_map


def imgMapBG(wts):
    image_mapBG = ""
    if wts.texture_coords == 'VIEW':
        image_mapBG = " map_type 0 "  # texture_coords refers to the mapping of world textures
    elif wts.texture_coords == 'ANGMAP':
        image_mapBG = " map_type 1 "
    elif wts.texture_coords == 'TUBE':
        image_mapBG = " map_type 2 "

    if wts.texture.use_interpolation:
        image_mapBG += " interpolate 2 "
    if wts.texture.extension == 'CLIP':
        image_mapBG += " once "
    #image_mapBG += "}"
    #if wts.mapping == 'CUBE':
    #   image_mapBG += "warp { cubic } rotate <-90,0,180>"  # no direct cube type mapping. Though this should work in POV 3.7 it doesn't give that good results(best suited to environment maps?)
    #if image_mapBG == "":
    #    print(" No background texture image  found ")
    return image_mapBG


def splitFile(path):
    idx = path.rfind("/")
    if idx == -1:
        idx = path.rfind("\\")
    return path[idx:].replace("/", "").replace("\\", "")


def splitPath(path):
    idx = path.rfind("/")
    if idx == -1:
        return path, ""
    else:
        return path[:idx]


def findInSubDir(filename, subdirectory=""):
    pahFile = ""
    if subdirectory:
        path = subdirectory
    else:
        path = os.getcwd()
    try:
        for root, dirs, names in os.walk(path):
            if filename in names:
                pahFile = os.path.join(root, filename)
        return pahFile
    except OSError:
        return ""


def path_image(image):
    import os
    fn = bpy.path.abspath(image)
    fn_strip = os.path.basename(fn)
    if not os.path.isfile(fn):
        fn = findInSubDir(splitFile(fn), splitPath(bpy.data.filepath))
    return fn

##############end find image texture


def splitHyphen(name):
    hyphidx = name.find("-")
    if hyphidx == -1:
        return name
    else:
        return name[hyphidx:].replace("-", "")


def safety(name, Level):
    # safety string name material
    #
    # Level=1 is for texture with No specular nor Mirror reflection
    # Level=2 is for texture with translation of spec and mir levels for when no map influences them
    # Level=3 is for texture with Maximum Spec and Mirror

    try:
        if int(name) > 0:
            prefix = "shader"
    except:
        prefix = ""
    prefix = "shader_"
    name = splitHyphen(name)
    if Level == 2:
        return prefix + name
    elif Level == 1:
        return prefix + name + "0"  # used for 0 of specular map
    elif Level == 3:
        return prefix + name + "1"  # used for 1 of specular map


##############end safety string name material
##############################EndSF###########################

TabLevel = 0


def write_pov(filename, scene=None, info_callback=None):
    import mathutils