armory/blender/arm/write_probes.py
2018-11-19 14:28:04 +01:00

293 lines
10 KiB
Python

import bpy
import os
import sys
import subprocess
import json
import re
import arm.utils
import arm.assets as 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, arm_radiance=True):
envpath = arm.utils.get_fp_build() + '/compiled/Assets/envmaps'
if not os.path.exists(envpath):
os.makedirs(envpath)
base_name = arm.utils.extract_filename(image_filepath).rsplit('.', 1)[0]
# Assets to be generated
output_file_irr = envpath + '/' + base_name + '_irradiance'
output_file_rad = envpath + '/' + base_name + '_radiance'
rad_format = 'jpg' if disable_hdr else 'hdr'
# Radiance & irradiance exists, keep cache
basep = envpath + '/' + base_name
if os.path.exists(basep + '_irradiance.arm'):
if not arm_radiance or os.path.exists(basep + '_radiance_0.' + rad_format):
add_irr_assets(output_file_irr)
if arm_radiance:
add_rad_assets(output_file_rad, rad_format, cached_num_mips)
return cached_num_mips
# Get paths
sdk_path = arm.utils.get_sdk_path()
kha_path = arm.utils.get_kha_path()
if arm.utils.get_os() == 'win':
cmft_path = sdk_path + '/lib/armory_tools/cmft/cmft.exe'
kraffiti_path = kha_path + '/Kore/Tools/kraffiti/kraffiti.exe'
elif arm.utils.get_os() == 'mac':
cmft_path = '"' + sdk_path + '/lib/armory_tools/cmft/cmft-osx"'
kraffiti_path = '"' + kha_path + '/Kore/Tools/kraffiti/kraffiti-osx"'
else:
cmft_path = '"' + sdk_path + '/lib/armory_tools/cmft/cmft-linux64"'
kraffiti_path = '"' + kha_path + '/Kore/Tools/kraffiti/kraffiti-linux64"'
output_gama_numerator = '2.2' if disable_hdr else '1.0'
input_file = arm.utils.asset_path(image_filepath)
# Scale map
rpdat = arm.utils.get_rp()
target_w = int(rpdat.arm_radiance_size)
target_h = int(target_w / 2)
scaled_file = output_file_rad + '.' + rad_format
if arm.utils.get_os() == 'win':
output = subprocess.check_output([ \
kraffiti_path,
'from=' + input_file,
'to=' + scaled_file,
'format=' + rad_format,
'width=' + str(target_w),
'height=' + str(target_h)])
else:
output = subprocess.check_output([ \
kraffiti_path + \
' from="' + input_file + '"' + \
' to="' + scaled_file + '"' + \
' format=' + rad_format + \
' width=' + str(target_w) + \
' height=' + str(target_h)], shell=True)
# Irradiance spherical harmonics
if arm.utils.get_os() == 'win':
subprocess.call([ \
cmft_path,
'--input', scaled_file,
'--filter', 'shcoeffs',
'--outputNum', '1',
'--output0', output_file_irr])
else:
subprocess.call([ \
cmft_path + \
' --input ' + '"' + scaled_file + '"' + \
' --filter shcoeffs' + \
' --outputNum 1' + \
' --output0 ' + '"' + output_file_irr + '"'], shell=True)
sh_to_json(output_file_irr)
add_irr_assets(output_file_irr)
# Mip-mapped radiance
if arm_radiance == False:
return cached_num_mips
# 4096 = 256 face
# 2048 = 128 face
# 1024 = 64 face
face_size = target_w / 8
if target_w == 2048:
mip_count = 9
elif target_w == 1024:
mip_count = 8
else:
mip_count = 7
wrd = bpy.data.worlds['Arm']
use_opencl = 'true'
if arm.utils.get_os() == 'win':
subprocess.call([ \
cmft_path,
'--input', input_file,
'--filter', 'radiance',
'--dstFaceSize', str(face_size),
'--srcFaceSize', str(face_size),
'--excludeBase', 'false',
# '--mipCount', str(mip_count),
'--glossScale', '8',
'--glossBias', '3',
'--lightingModel', 'blinnbrdf',
'--edgeFixup', 'none',
'--numCpuProcessingThreads', '4',
'--useOpenCL', use_opencl,
'--clVendor', 'anyGpuVendor',
'--deviceType', 'gpu',
'--deviceIndex', '0',
'--generateMipChain', 'true',
'--inputGammaNumerator', output_gama_numerator,
'--inputGammaDenominator', '1.0',
'--outputGammaNumerator', '1.0',
'--outputGammaDenominator', '1.0',
'--outputNum', '1',
'--output0', output_file_rad,
'--output0params', 'hdr,rgbe,latlong'])
else:
subprocess.call([ \
cmft_path + \
' --input "' + input_file + '"' + \
' --filter radiance' + \
' --dstFaceSize ' + str(face_size) + \
' --srcFaceSize ' + str(face_size) + \
' --excludeBase false' + \
#' --mipCount ' + str(mip_count) + \
' --glossScale 8' + \
' --glossBias 3' + \
' --lightingModel blinnbrdf' + \
' --edgeFixup none' + \
' --numCpuProcessingThreads 4' + \
' --useOpenCL ' + use_opencl + \
' --clVendor anyGpuVendor' + \
' --deviceType gpu' + \
' --deviceIndex 0' + \
' --generateMipChain true' + \
' --inputGammaNumerator ' + output_gama_numerator + \
' --inputGammaDenominator 1.0' + \
' --outputGammaNumerator 1.0' + \
' --outputGammaDenominator 1.0' + \
' --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_base = output_file_rad + '_'
mip_num = 0
while mip_w >= 4:
mip_name = mip_base + str(mip_num)
os.rename(
mip_name + '_' + str(mip_w) + 'x' + str(int(mip_w / 2)) + '.hdr',
mip_name + '.hdr')
mip_w = int(mip_w / 2)
mip_num += 1
# Append mips
generated_files = []
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:
if arm.utils.get_os() == 'win':
subprocess.call([ \
kraffiti_path,
'from=' + f + '.hdr',
'to=' + f + '.jpg',
'format=jpg'])
else:
subprocess.call([ \
kraffiti_path + \
' from="' + f + '.hdr"' + \
' to="' + f + '.jpg"' + \
' format=jpg'], shell=True)
os.remove(f + '.hdr')
# Scale from (4x2 to 1x1>
for i in range (0, 2):
last = generated_files[-1]
out = output_file_rad + '_' + str(mip_count + i)
if arm.utils.get_os() == 'win':
subprocess.call([ \
kraffiti_path,
'from=' + last + '.' + rad_format,
'to=' + out + '.' + rad_format,
'scale=0.5',
'format=' + rad_format], shell=True)
else:
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 += 2
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):
with open(sh_file + '.c') as f:
sh_lines = f.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
ext = '.arm' if bpy.data.worlds['Arm'].arm_minimize else '.json'
arm.utils.write_arm(sh_file + ext, 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):
# Hosek spherical harmonics
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
envpath = arm.utils.get_fp_build() + '/compiled/Assets/envmaps'
if not os.path.exists(envpath):
os.makedirs(envpath)
output_file = envpath + '/' + base_name + '_irradiance'
sh_json = {}
sh_json['irradiance'] = irradiance_floats
arm.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] * 1.13, col[1] * 1.13, col[2] * 1.13] # Adjust to Cycles
for i in range(0, 24):
irradiance_floats.append(0.0)
envpath = arm.utils.get_fp_build() + '/compiled/Assets/envmaps'
if not os.path.exists(envpath):
os.makedirs(envpath)
output_file = envpath + '/' + base_name + '_irradiance'
sh_json = {}
sh_json['irradiance'] = irradiance_floats
arm.utils.write_arm(output_file + '.arm', sh_json)
assets.add(output_file + '.arm')