armory/blender/write_probes.py
2016-08-29 09:56:34 +02:00

252 lines
8.4 KiB
Python

import bpy
import os
import sys
import subprocess
import json
import re
import utils
import assets
def add_irr_assets(output_file_irr):
assets.add(output_file_irr + '.arm')
def add_rad_assets(output_file_rad, rad_format, num_mips):
assets.add(output_file_rad + '.' + rad_format)
for i in range(0, num_mips):
assets.add(output_file_rad + '_' + str(i) + '.' + rad_format)
# Generate probes from environment map
def write_probes(image_filepath, disable_hdr, cached_num_mips, generate_radiance=True):
if not os.path.exists('build/compiled/Assets/envmaps'):
os.makedirs('build/compiled/Assets/envmaps')
base_name = image_filepath.rsplit('/', 1)[1].rsplit('.', 1)[0] # Extract file name without extension
# Assets to be generated
output_file_irr = 'build/compiled/Assets/envmaps/' + base_name + '_irradiance'
if generate_radiance:
output_file_rad = 'build/compiled/Assets/envmaps/' + base_name + '_radiance'
rad_format = 'jpg' if disable_hdr else 'hdr'
# Assume irradiance has to exist
if os.path.exists('build/compiled/Assets/envmaps/' + base_name + '_irradiance.arm'):
# Cached assets
add_irr_assets(output_file_irr)
if generate_radiance:
add_rad_assets(output_file_rad, rad_format, cached_num_mips)
return cached_num_mips
# Get paths
user_preferences = bpy.context.user_preferences
addon_prefs = user_preferences.addons['armory'].preferences
sdk_path = addon_prefs.sdk_path
if utils.get_os() == 'win':
cmft_path = sdk_path + '/armory/tools/cmft/cmft.exe'
kraffiti_path = sdk_path + '/kode_studio/KodeStudio-win32/resources/app/extensions/kha/Kha/Kore/Tools/kraffiti/kraffiti.exe'
elif utils.get_os() == 'mac':
cmft_path = sdk_path + '/armory/tools/cmft/cmft-osx'
kraffiti_path = sdk_path + '/kode_studio/"Kode Studio.app"/Contents/Resources/app/extensions/kha/Kha/Kore/Tools/kraffiti/kraffiti-osx'
else:
cmft_path = sdk_path + '/armory/tools/cmft/cmft-linux64'
kraffiti_path = sdk_path + '/kode_studio/KodeStudio-linux64/resources/app/extensions/kha/Kha/Kore/Tools/kraffiti/kraffiti-linux64'
generated_files = []
output_gama_numerator = '1.0' if disable_hdr else '2.2'
input_file = utils.get_fp() + image_filepath #'Assets/' + image_name
# Get input size
output = subprocess.check_output([ \
kraffiti_path + \
' from=' + input_file + \
' donothing'], shell=True)
# #%ix%i
image_w = str(output).split("'")[1]
image_w = image_w[1:]
image_w = image_w.split('x')[0]
image_w = int(image_w)
image_h = image_w / 2
# 4096 = 256 face - 6 mips - 1024 latlong
# 2048 = 128 face - 5 mips - 512 latlong
# 1024 = 64 face - 4 mips
# 512 = 32 face - 3 mips
# 256 = 16 face - 2 mips
# 128 = 8 face - 1 mip
mip_count = 1
num = 128
while num < image_w:
num *= 2
mip_count += 1
face_size = image_w / 16
src_face_size = str(face_size)
dst_face_size = str(face_size)
# Generate irradiance
gama_options = ''
if disable_hdr:
gama_options = \
' --inputGammaNumerator 2.2' + \
' --inputGammaDenominator 1.0' + \
' --outputGammaNumerator 1.0' + \
' --outputGammaDenominator ' + output_gama_numerator
# Irradiance spherical harmonics
subprocess.call([ \
cmft_path + \
' --input ' + input_file + \
' --filter shcoeffs' + \
#gama_options + \
' --outputNum 1' + \
' --output0 ' + output_file_irr], shell=True)
sh_to_json(output_file_irr)
# Non cached assets
add_irr_assets(output_file_irr)
# Mip-mapped radiance image
if generate_radiance == False:
return cached_num_mips
output = subprocess.check_output([ \
kraffiti_path + \
' from=' + input_file + \
' to=' + output_file_rad + '.' + rad_format + \
' format=' + rad_format + \
' scale=0.5'], shell=True)
subprocess.call([ \
cmft_path + \
' --input ' + input_file + \
' --filter radiance' + \
' --dstFaceSize ' + dst_face_size + \
' --srcFaceSize ' + src_face_size + \
' --excludeBase false' + \
' --mipCount ' + str(mip_count) + \
' --glossScale 7' + \
' --glossBias 3' + \
' --lightingModel blinnbrdf' + \
' --edgeFixup none' + \
' --numCpuProcessingThreads 4' + \
' --useOpenCL true' + \
' --clVendor anyGpuVendor' + \
' --deviceType gpu' + \
' --deviceIndex 0' + \
' --generateMipChain false' + \
' --inputGammaNumerator 2.2' + \
' --inputGammaDenominator 1.0' + \
' --outputGammaNumerator 1.0' + \
' --outputGammaDenominator ' + output_gama_numerator + \
' --outputNum 1' + \
' --output0 ' + output_file_rad + \
' --output0params hdr,rgbe,latlong'], shell=True)
# Remove size extensions in file name
mip_w = int(face_size * 4)
mip_h = int(face_size * 2)
mip_base = output_file_rad + '_'
mip_num = 0
while mip_w >= 32:
mip_name = mip_base + str(mip_num)
os.rename(
mip_name + '_' + str(mip_w) + 'x' + str(mip_h) + '.hdr',
mip_name + '.hdr')
mip_w = int(mip_w / 2)
mip_h = int(mip_h / 2)
mip_num += 1
# Append mips
for i in range(0, mip_count):
generated_files.append(output_file_rad + '_' + str(i))
# Convert to jpgs
if disable_hdr is True:
for f in generated_files:
subprocess.call([ \
kraffiti_path + \
' from=' + f + '.hdr' + \
' to=' + f + '.jpg' + \
' format=jpg'], shell=True)
os.remove(f + '.hdr')
# Scale from (32x16 to 1x1>
for i in range (0, 5):
last = generated_files[-1]
out = output_file_rad + '_' + str(mip_count + i)
subprocess.call([ \
kraffiti_path + \
' from=' + last + '.' + rad_format + \
' to=' + out + '.' + rad_format + \
' scale=0.5' + \
' format=' + rad_format], shell=True)
generated_files.append(out)
mip_count += 5
# Non cached assets
add_rad_assets(output_file_rad, rad_format, mip_count)
return mip_count
# Parse sh coefs produced by cmft into json array
def sh_to_json(sh_file):
sh_lines = open(sh_file + '.c').read().splitlines()
band0_line = sh_lines[5]
band1_line = sh_lines[6]
band2_line = sh_lines[7]
irradiance_floats = []
parse_band_floats(irradiance_floats, band0_line)
parse_band_floats(irradiance_floats, band1_line)
parse_band_floats(irradiance_floats, band2_line)
sh_json = {}
sh_json['irradiance'] = irradiance_floats
utils.write_arm(sh_file + '.arm', sh_json)
# Clean up .c
os.remove(sh_file + '.c')
def parse_band_floats(irradiance_floats, band_line):
string_floats = re.findall(r'[-+]?\d*\.\d+|\d+', band_line)
string_floats = string_floats[1:] # Remove 'Band 0/1/2' number
for s in string_floats:
irradiance_floats.append(float(s))
def write_sky_irradiance(base_name):
# Predefined fake spherical harmonics for now
irradiance_floats = [1.0281457342829743,1.1617608778901902,1.3886220898440544,-0.13044863139637752,-0.2794659158733846,-0.5736106907295643,0.04065421813873111,0.0434367391348577,0.03567450494792305,0.10964557605577738,0.1129839085793664,0.11261660812141877,-0.08271974283263238,-0.08068091195339556,-0.06432614970480094,-0.12517787967665814,-0.11638582546310804,-0.09743696224655113,0.20068697715947176,0.2158788783296805,0.2109374396869599,0.19636637427150455,0.19445523113118082,0.17825330699680575,0.31440860839538637,0.33041120060402407,0.30867788630062676]
# Hosek
# irradiance_floats = [1.5519331988822218,2.3352207154503266,2.997277451988076,0.2673894962434794,0.4305630474135794,0.11331825259716752,-0.04453633521758638,-0.038753175134160295,-0.021302768541875794,0.00055858020486499,0.000371654770334503,0.000126606145406403,-0.000135708721978705,-0.000787399554583089,-0.001550090690860059,0.021947399048903773,0.05453650591711572,0.08783641266630278,0.17053593578630663,0.14734127083304463,0.07775404698816404,-2.6924363189795e-05,-7.9350169701934e-05,-7.559914435231e-05,0.27035455385870993,0.23122918445556914,0.12158817295211832]
# for i in range(0, len(irradiance_floats)):
# irradiance_floats[i] /= 2;
if not os.path.exists('build/compiled/Assets/envmaps'):
os.makedirs('build/compiled/Assets/envmaps')
output_file = 'build/compiled/Assets/envmaps/' + base_name + '_irradiance'
sh_json = {}
sh_json['irradiance'] = irradiance_floats
utils.write_arm(output_file + '.arm', sh_json)
assets.add(output_file + '.arm')
def write_color_irradiance(base_name, col):
# Constant color
irradiance_floats = [col[0], col[1], col[2]]
for i in range(0, 24):
irradiance_floats.append(0.0)
if not os.path.exists('build/compiled/Assets/envmaps'):
os.makedirs('build/compiled/Assets/envmaps')
output_file = 'build/compiled/Assets/envmaps/' + base_name + '_irradiance'
sh_json = {}
sh_json['irradiance'] = irradiance_floats
utils.write_arm(output_file + '.arm', sh_json)
assets.add(output_file + '.arm')