armory/blender/arm/material/cycles.py
2018-12-30 00:01:34 +01:00

1645 lines
63 KiB
Python

#
# This module builds upon Cycles nodes work licensed as
# Copyright 2011-2013 Blender Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import math
import bpy
import os
import arm.assets
import arm.utils
import arm.make_state
import arm.log
import arm.material.mat_state as mat_state
import arm.material.cycles_functions as c_functions
import shutil
emission_found = False
particle_info = None # Particle info export
def parse(nodes, con, vert, frag, geom, tesc, tese, parse_surface=True, parse_opacity=True, parse_displacement=True, basecol_only=False):
output_node = node_by_type(nodes, 'OUTPUT_MATERIAL')
if output_node != None:
parse_output(output_node, con, vert, frag, geom, tesc, tese, parse_surface, parse_opacity, parse_displacement, basecol_only)
def parse_output(node, _con, _vert, _frag, _geom, _tesc, _tese, _parse_surface, _parse_opacity, _parse_displacement, _basecol_only):
global parsed # Compute nodes only once
global parents
global normal_parsed
global curshader # Active shader - frag for surface / tese for displacement
global con
global vert
global frag
global geom
global tesc
global tese
global parse_surface
global parse_opacity
global basecol_only
global emission_found
global particle_info
global sample_bump
global sample_bump_res
con = _con
vert = _vert
frag = _frag
geom = _geom
tesc = _tesc
tese = _tese
parse_surface = _parse_surface
parse_opacity = _parse_opacity
basecol_only = _basecol_only
emission_found = False
particle_info = {}
particle_info['index'] = False
particle_info['age'] = False
particle_info['lifetime'] = False
particle_info['location'] = False
particle_info['size'] = False
particle_info['velocity'] = False
particle_info['angular_velocity'] = False
sample_bump = False
sample_bump_res = ''
# Surface
if parse_surface or parse_opacity:
parsed = {}
parents = []
normal_parsed = False
curshader = frag
out_basecol, out_roughness, out_metallic, out_occlusion, out_specular, out_opacity = parse_shader_input(node.inputs[0])
if parse_surface:
frag.write('basecol = {0};'.format(out_basecol))
frag.write('roughness = {0};'.format(out_roughness))
frag.write('metallic = {0};'.format(out_metallic))
frag.write('occlusion = {0};'.format(out_occlusion))
frag.write('specular = {0};'.format(out_specular))
if parse_opacity:
frag.write('opacity = {0};'.format(out_opacity))
# Volume
# parse_volume_input(node.inputs[1])
# Displacement
if _parse_displacement and disp_enabled() and node.inputs[2].is_linked:
parsed = {}
parents = []
normal_parsed = False
rpdat = arm.utils.get_rp()
if rpdat.arm_rp_displacement == 'Tessellation' and tese != None:
curshader = tese
else:
curshader = vert
out_disp = parse_displacement_input(node.inputs[2])
curshader.write('vec3 disp = {0};'.format(out_disp))
def parse_group(node, socket): # Entering group
index = socket_index(node, socket)
output_node = node_by_type(node.node_tree.nodes, 'GROUP_OUTPUT')
if output_node == None:
return
inp = output_node.inputs[index]
parents.append(node)
out_group = parse_input(inp)
parents.pop()
return out_group
def parse_group_input(node, socket):
index = socket_index(node, socket)
parent = parents.pop() # Leaving group
inp = parent.inputs[index]
res = parse_input(inp)
parents.append(parent) # Return to group
return res
def parse_input(inp):
if inp.type == 'SHADER':
return parse_shader_input(inp)
elif inp.type == 'RGB':
return parse_vector_input(inp)
elif inp.type == 'RGBA':
return parse_vector_input(inp)
elif inp.type == 'VECTOR':
return parse_vector_input(inp)
elif inp.type == 'VALUE':
return parse_value_input(inp)
def parse_shader_input(inp):
if inp.is_linked:
l = inp.links[0]
if l.from_node.type == 'REROUTE':
return parse_shader_input(l.from_node.inputs[0])
return parse_shader(l.from_node, l.from_socket)
else:
out_basecol = 'vec3(0.8)'
out_roughness = '0.0'
out_metallic = '0.0'
out_occlusion = '1.0'
out_specular = '1.0'
out_opacity = '1.0'
return out_basecol, out_roughness, out_metallic, out_occlusion, out_specular, out_opacity
def parse_shader(node, socket):
global emission_found
out_basecol = 'vec3(0.8)'
out_roughness = '0.0'
out_metallic = '0.0'
out_occlusion = '1.0'
out_specular = '1.0'
out_opacity = '1.0'
if node.type == 'GROUP':
if node.node_tree.name.startswith('Armory PBR'):
if parse_surface:
# Base color
out_basecol = parse_vector_input(node.inputs[0])
# Occlusion
out_occlusion = parse_value_input(node.inputs[2])
# Roughness
out_roughness = parse_value_input(node.inputs[3])
# Metallic
out_metallic = parse_value_input(node.inputs[4])
# Normal
if node.inputs[5].is_linked and node.inputs[5].links[0].from_node.type == 'NORMAL_MAP':
warn(mat_name() + ' - Do not use Normal Map node with Armory PBR, connect Image Texture directly')
parse_normal_map_color_input(node.inputs[5])
# Emission
if node.inputs[6].is_linked or node.inputs[6].default_value != 0.0:
out_emission = parse_value_input(node.inputs[6])
emission_found = True
out_basecol = '({0} + vec3({1} * 100.0))'.format(out_basecol, out_emission)
if parse_opacity:
out_opacity = parse_value_input(node.inputs[1])
else:
return parse_group(node, socket)
elif node.type == 'GROUP_INPUT':
return parse_group_input(node, socket)
elif node.type == 'MIX_SHADER':
prefix = '' if node.inputs[0].is_linked else 'const '
fac = parse_value_input(node.inputs[0])
fac_var = node_name(node.name) + '_fac'
fac_inv_var = node_name(node.name) + '_fac_inv'
curshader.write('{0}float {1} = {2};'.format(prefix, fac_var, fac))
curshader.write('{0}float {1} = 1.0 - {2};'.format(prefix, fac_inv_var, fac_var))
bc1, rough1, met1, occ1, spec1, opac1 = parse_shader_input(node.inputs[1])
bc2, rough2, met2, occ2, spec2, opac2 = parse_shader_input(node.inputs[2])
if parse_surface:
out_basecol = '({0} * {3} + {1} * {2})'.format(bc1, bc2, fac_var, fac_inv_var)
out_roughness = '({0} * {3} + {1} * {2})'.format(rough1, rough2, fac_var, fac_inv_var)
out_metallic = '({0} * {3} + {1} * {2})'.format(met1, met2, fac_var, fac_inv_var)
out_occlusion = '({0} * {3} + {1} * {2})'.format(occ1, occ2, fac_var, fac_inv_var)
out_specular = '({0} * {3} + {1} * {2})'.format(spec1, spec2, fac_var, fac_inv_var)
if parse_opacity:
out_opacity = '({0} * {3} + {1} * {2})'.format(opac1, opac2, fac_var, fac_inv_var)
elif node.type == 'ADD_SHADER':
bc1, rough1, met1, occ1, spec1, opac1 = parse_shader_input(node.inputs[0])
bc2, rough2, met2, occ2, spec2, opac2 = parse_shader_input(node.inputs[1])
if parse_surface:
out_basecol = '({0} + {1})'.format(bc1, bc2)
out_roughness = '({0} * 0.5 + {1} * 0.5)'.format(rough1, rough2)
out_metallic = '({0} * 0.5 + {1} * 0.5)'.format(met1, met2)
out_occlusion = '({0} * 0.5 + {1} * 0.5)'.format(occ1, occ2)
out_specular = '({0} * 0.5 + {1} * 0.5)'.format(spec1, spec2)
if parse_opacity:
out_opacity = '({0} * 0.5 + {1} * 0.5)'.format(opac1, opac2)
elif node.type == 'BSDF_PRINCIPLED':
if parse_surface:
write_normal(node.inputs[17])
out_basecol = parse_vector_input(node.inputs[0])
# subsurface = parse_vector_input(node.inputs[1])
# subsurface_radius = parse_vector_input(node.inputs[2])
# subsurface_color = parse_vector_input(node.inputs[3])
out_metallic = parse_value_input(node.inputs[4])
out_specular = parse_value_input(node.inputs[5])
# specular_tint = parse_vector_input(node.inputs[6])
out_roughness = parse_value_input(node.inputs[7])
# aniso = parse_vector_input(node.inputs[8])
# aniso_rot = parse_vector_input(node.inputs[9])
# sheen = parse_vector_input(node.inputs[10])
# sheen_tint = parse_vector_input(node.inputs[11])
# clearcoat = parse_vector_input(node.inputs[12])
# clearcoat_rough = parse_vector_input(node.inputs[13])
# ior = parse_vector_input(node.inputs[14])
# transmission = parse_vector_input(node.inputs[15])
# transmission_roughness = parse_vector_input(node.inputs[16]) # Hidden socket
elif node.type == 'BSDF_DIFFUSE':
if parse_surface:
write_normal(node.inputs[2])
out_basecol = parse_vector_input(node.inputs[0])
out_roughness = parse_value_input(node.inputs[1])
out_specular = '0.0'
elif node.type == 'BSDF_GLOSSY':
if parse_surface:
write_normal(node.inputs[2])
out_basecol = parse_vector_input(node.inputs[0])
out_roughness = parse_value_input(node.inputs[1])
out_metallic = '1.0'
elif node.type == 'AMBIENT_OCCLUSION':
if parse_surface:
# Single channel
out_occlusion = parse_vector_input(node.inputs[0]) + '.r'
elif node.type == 'BSDF_ANISOTROPIC':
if parse_surface:
write_normal(node.inputs[4])
# Revert to glossy
out_basecol = parse_vector_input(node.inputs[0])
out_roughness = parse_value_input(node.inputs[1])
out_metallic = '1.0'
elif node.type == 'EMISSION':
if parse_surface:
# Multiply basecol
out_basecol = parse_vector_input(node.inputs[0])
emission_found = True
strength = parse_value_input(node.inputs[1])
out_basecol = '({0} * ({1} * 100.0))'.format(out_basecol, strength)
elif node.type == 'BSDF_GLASS':
if parse_surface:
write_normal(node.inputs[3])
out_roughness = parse_value_input(node.inputs[1])
if parse_opacity:
out_opacity = '(1.0 - {0}.r)'.format(parse_vector_input(node.inputs[0]))
elif node.type == 'BSDF_HAIR':
pass
elif node.type == 'HOLDOUT':
if parse_surface:
# Occlude
out_occlusion = '0.0'
elif node.type == 'BSDF_REFRACTION':
# write_normal(node.inputs[3])
pass
elif node.type == 'SUBSURFACE_SCATTERING':
if parse_surface:
write_normal(node.inputs[4])
out_basecol = parse_vector_input(node.inputs[0])
elif node.type == 'BSDF_TOON':
# write_normal(node.inputs[3])
pass
elif node.type == 'BSDF_TRANSLUCENT':
if parse_surface:
write_normal(node.inputs[1])
if parse_opacity:
out_opacity = '(1.0 - {0}.r)'.format(parse_vector_input(node.inputs[0]))
elif node.type == 'BSDF_TRANSPARENT':
if parse_opacity:
out_opacity = '(1.0 - {0}.r)'.format(parse_vector_input(node.inputs[0]))
elif node.type == 'BSDF_VELVET':
if parse_surface:
write_normal(node.inputs[2])
out_basecol = parse_vector_input(node.inputs[0])
out_roughness = '1.0'
out_metallic = '1.0'
elif node.type == 'VOLUME_ABSORPTION':
pass
elif node.type == 'VOLUME_SCATTER':
pass
return out_basecol, out_roughness, out_metallic, out_occlusion, out_specular, out_opacity
def parse_displacement_input(inp):
if inp.is_linked:
l = inp.links[0]
if l.from_node.type == 'REROUTE':
return parse_displacement_input(l.from_node.inputs[0])
return parse_vector_input(inp)
else:
return None
def parse_vector_input(inp):
if inp.is_linked:
l = inp.links[0]
if l.from_node.type == 'REROUTE':
return parse_vector_input(l.from_node.inputs[0])
res_var = write_result(l)
st = l.from_socket.type
if st == 'RGB' or st == 'RGBA' or st == 'VECTOR':
return res_var
else: # VALUE
return 'vec3({0})'.format(res_var)
else:
if inp.type == 'VALUE': # Unlinked reroute
return to_vec3([0.0, 0.0, 0.0])
else:
if mat_batch() and inp.is_uniform:
return to_uniform(inp)
else:
return to_vec3(inp.default_value)
def parse_vector(node, socket):
global particle_info
global sample_bump
global sample_bump_res
# RGB
if node.type == 'GROUP':
return parse_group(node, socket)
elif node.type == 'GROUP_INPUT':
return parse_group_input(node, socket)
elif node.type == 'ATTRIBUTE':
if socket == node.outputs[0]: # Color
con.add_elem('col', 'short4norm') # Vcols only for now
return 'vcolor'
else: # Vector
con.add_elem('tex', 'short2norm') # UVMaps only for now
mat = mat_get_material()
mat_users = mat_get_material_users()
if mat_users != None and mat in mat_users:
mat_user = mat_users[mat][0]
if hasattr(mat_user.data, 'uv_layers'): # No uvlayers for Curve
lays = mat_user.data.uv_layers
# Second uvmap referenced
if len(lays) > 1 and node.attribute_name == lays[1].name:
con.add_elem('tex1', 'short2norm')
return 'vec3(texCoord1.x, 1.0 - texCoord1.y, 0.0)'
return 'vec3(texCoord.x, 1.0 - texCoord.y, 0.0)'
elif node.type == 'RGB':
if node.arm_material_param:
nn = 'param_' + node_name(node.name)
curshader.add_uniform('vec3 {0}'.format(nn), link='{0}'.format(node.name))
return nn
else:
return to_vec3(socket.default_value)
elif node.type == 'TEX_BRICK':
curshader.add_function(c_functions.str_tex_brick)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
col1 = parse_vector_input(node.inputs[1])
col2 = parse_vector_input(node.inputs[2])
col3 = parse_vector_input(node.inputs[3])
scale = parse_value_input(node.inputs[4])
res = 'tex_brick({0} * {4}, {1}, {2}, {3})'.format(co, col1, col2, col3, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_CHECKER':
curshader.add_function(c_functions.str_tex_checker)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
col1 = parse_vector_input(node.inputs[1])
col2 = parse_vector_input(node.inputs[2])
scale = parse_value_input(node.inputs[3])
res = 'tex_checker({0}, {1}, {2}, {3})'.format(co, col1, col2, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_ENVIRONMENT':
# Pass through
return to_vec3([0.0, 0.0, 0.0])
elif node.type == 'TEX_GRADIENT':
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
grad = node.gradient_type
if grad == 'LINEAR':
f = '{0}.x'.format(co)
elif grad == 'QUADRATIC':
f = '0.0'
elif grad == 'EASING':
f = '0.0'
elif grad == 'DIAGONAL':
f = '({0}.x + {0}.y) * 0.5'.format(co)
elif grad == 'RADIAL':
f = 'atan({0}.y, {0}.x) / PI2 + 0.5'.format(co)
elif grad == 'QUADRATIC_SPHERE':
f = '0.0'
elif grad == 'SPHERICAL':
f = 'max(1.0 - sqrt({0}.x * {0}.x + {0}.y * {0}.y + {0}.z * {0}.z), 0.0)'.format(co)
res = 'vec3(clamp({0}, 0.0, 1.0))'.format(f)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_IMAGE':
# Already fetched
if is_parsed(store_var_name(node)):
return '{0}.rgb'.format(store_var_name(node))
tex_name = node_name(node.name)
tex = make_texture(node, tex_name)
tex_link = node.name if node.arm_material_param else None
if tex != None:
curshader.write_textures += 1
to_linear = node.color_space == 'COLOR'
res = '{0}.rgb'.format(texture_store(node, tex, tex_name, to_linear, tex_link=tex_link))
curshader.write_textures -= 1
return res
elif node.image == None: # Empty texture
tex = {}
tex['name'] = tex_name
tex['file'] = ''
return '{0}.rgb'.format(texture_store(node, tex, tex_name, True, tex_link=tex_link))
else:
tex_store = store_var_name(node) # Pink color for missing texture
curshader.write('vec4 {0} = vec4(1.0, 0.0, 1.0, 1.0);'.format(tex_store))
return '{0}.rgb'.format(tex_store)
elif node.type == 'TEX_MAGIC':
curshader.add_function(c_functions.str_tex_magic)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
res = 'tex_magic({0} * {1} * 4.0)'.format(co, scale)
if sample_bump:
write_bump(node, res, 0.1)
return res
elif node.type == 'TEX_MUSGRAVE':
curshader.add_function(c_functions.str_tex_musgrave)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
# detail = parse_value_input(node.inputs[2])
# distortion = parse_value_input(node.inputs[3])
res = 'vec3(tex_musgrave_f({0} * {1} * 0.5))'.format(co, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_NOISE':
curshader.add_function(c_functions.str_tex_noise)
assets_add(get_sdk_path() + '/armory/Assets/' + 'noise256.png')
assets_add_embedded_data('noise256.png')
curshader.add_uniform('sampler2D snoise256', link='_noise256')
curshader.add_function(c_functions.str_tex_noise)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
# detail = parse_value_input(node.inputs[2])
# distortion = parse_value_input(node.inputs[3])
# Slow..
res = 'vec3(tex_noise({0} * {1}), tex_noise({0} * {1} + 0.33), tex_noise({0} * {1} + 0.66))'.format(co, scale)
if sample_bump:
write_bump(node, res, 0.1)
return res
elif node.type == 'TEX_POINTDENSITY':
# Pass through
return to_vec3([0.0, 0.0, 0.0])
elif node.type == 'TEX_SKY':
# Pass through
return to_vec3([0.0, 0.0, 0.0])
elif node.type == 'TEX_VORONOI':
curshader.add_function(c_functions.str_tex_voronoi)
assets_add(get_sdk_path() + '/armory/Assets/' + 'noise256.png')
assets_add_embedded_data('noise256.png')
curshader.add_uniform('sampler2D snoise256', link='_noise256')
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
if node.coloring == 'INTENSITY':
res = 'vec3(tex_voronoi({0} * {1}).a)'.format(co, scale)
else: # CELLS
res = 'tex_voronoi({0} * {1}).rgb'.format(co, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_WAVE':
curshader.add_function(c_functions.str_tex_wave)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
res = 'vec3(tex_wave_f({0} * {1}))'.format(co, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'BRIGHTCONTRAST':
out_col = parse_vector_input(node.inputs[0])
bright = parse_value_input(node.inputs[1])
contr = parse_value_input(node.inputs[2])
curshader.add_function(c_functions.str_brightcontrast)
return 'brightcontrast({0}, {1}, {2})'.format(out_col, bright, contr)
elif node.type == 'GAMMA':
out_col = parse_vector_input(node.inputs[0])
gamma = parse_value_input(node.inputs[1])
return 'pow({0}, vec3({1}))'.format(out_col, gamma)
elif node.type == 'HUE_SAT':
curshader.add_function(c_functions.str_hue_sat)
hue = parse_value_input(node.inputs[0])
sat = parse_value_input(node.inputs[1])
val = parse_value_input(node.inputs[2])
fac = parse_value_input(node.inputs[3])
col = parse_vector_input(node.inputs[4])
return 'hue_sat({0}, vec4({1}-0.5, {2}, {3}, 1.0-{4}))'.format(col, hue, sat, val, fac)
elif node.type == 'INVERT':
fac = parse_value_input(node.inputs[0])
out_col = parse_vector_input(node.inputs[1])
return 'mix({0}, vec3(1.0) - ({0}), {1})'.format(out_col, fac)
elif node.type == 'MIX_RGB':
fac = parse_value_input(node.inputs[0])
fac_var = node_name(node.name) + '_fac'
curshader.write('float {0} = {1};'.format(fac_var, fac))
col1 = parse_vector_input(node.inputs[1])
col2 = parse_vector_input(node.inputs[2])
blend = node.blend_type
if blend == 'MIX':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var)
elif blend == 'ADD':
out_col = 'mix({0}, {0} + {1}, {2})'.format(col1, col2, fac_var)
elif blend == 'MULTIPLY':
out_col = 'mix({0}, {0} * {1}, {2})'.format(col1, col2, fac_var)
elif blend == 'SUBTRACT':
out_col = 'mix({0}, {0} - {1}, {2})'.format(col1, col2, fac_var)
elif blend == 'SCREEN':
out_col = '(vec3(1.0) - (vec3(1.0 - {2}) + {2} * (vec3(1.0) - {1})) * (vec3(1.0) - {0}))'.format(col1, col2, fac_var)
elif blend == 'DIVIDE':
out_col = '(vec3((1.0 - {2}) * {0} + {2} * {0} / {1}))'.format(col1, col2, fac_var)
elif blend == 'DIFFERENCE':
out_col = 'mix({0}, abs({0} - {1}), {2})'.format(col1, col2, fac_var)
elif blend == 'DARKEN':
out_col = 'min({0}, {1} * {2})'.format(col1, col2, fac_var)
elif blend == 'LIGHTEN':
out_col = 'max({0}, {1} * {2})'.format(col1, col2, fac_var)
elif blend == 'OVERLAY':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var) # Revert to mix
elif blend == 'DODGE':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var) # Revert to mix
elif blend == 'BURN':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var) # Revert to mix
elif blend == 'HUE':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var) # Revert to mix
elif blend == 'SATURATION':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var) # Revert to mix
elif blend == 'VALUE':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var) # Revert to mix
elif blend == 'COLOR':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var) # Revert to mix
elif blend == 'SOFT_LIGHT':
out_col = '((1.0 - {2}) * {0} + {2} * ((vec3(1.0) - {0}) * {1} * {0} + {0} * (vec3(1.0) - (vec3(1.0) - {1}) * (vec3(1.0) - {0}))));'.format(col1, col2, fac)
elif blend == 'LINEAR_LIGHT':
out_col = 'mix({0}, {1}, {2})'.format(col1, col2, fac_var) # Revert to mix
# out_col = '({0} + {2} * (2.0 * ({1} - vec3(0.5))))'.format(col1, col2, fac_var)
if node.use_clamp:
return 'clamp({0}, vec3(0.0), vec3(1.0))'.format(out_col)
else:
return out_col
elif node.type == 'BLACKBODY':
# Pass constant
return to_vec3([0.84, 0.38, 0.0])
elif node.type == 'VALTORGB': # ColorRamp
fac = parse_value_input(node.inputs[0])
interp = node.color_ramp.interpolation
elems = node.color_ramp.elements
if len(elems) == 1:
return to_vec3(elems[0].color)
# Write cols array
cols_var = node_name(node.name) + '_cols'
curshader.write('vec3 {0}[{1}];'.format(cols_var, len(elems))) # TODO: Make const
for i in range(0, len(elems)):
curshader.write('{0}[{1}] = vec3({2}, {3}, {4});'.format(cols_var, i, elems[i].color[0], elems[i].color[1], elems[i].color[2]))
# Get index
fac_var = node_name(node.name) + '_fac'
curshader.write('float {0} = {1};'.format(fac_var, fac))
index = '0'
for i in range(1, len(elems)):
index += ' + ({0} > {1} ? 1 : 0)'.format(fac_var, elems[i].position)
# Write index
index_var = node_name(node.name) + '_i'
curshader.write('int {0} = {1};'.format(index_var, index))
if interp == 'CONSTANT':
return '{0}[{1}]'.format(cols_var, index_var)
else: # Linear
# Write facs array
facs_var = node_name(node.name) + '_facs'
curshader.write('float {0}[{1}];'.format(facs_var, len(elems))) # TODO: Make const
for i in range(0, len(elems)):
curshader.write('{0}[{1}] = {2};'.format(facs_var, i, elems[i].position))
# Mix color
# float f = (pos - start) * (1.0 / (finish - start))
return 'mix({0}[{1}], {0}[{1} + 1], ({2} - {3}[{1}]) * (1.0 / ({3}[{1} + 1] - {3}[{1}]) ))'.format(cols_var, index_var, fac_var, facs_var)
elif node.type == 'CURVE_VEC': # Vector Curves
fac = parse_value_input(node.inputs[0])
vec = parse_vector_input(node.inputs[1])
curves = node.mapping.curves
name = node_name(node.name)
# mapping.curves[0].points[0].handle_type # bezier curve
return '(vec3({0}, {1}, {2}) * {3})'.format(\
vector_curve(name + '0', vec + '.x', curves[0].points), vector_curve(name + '1', vec + '.y', curves[1].points), vector_curve(name + '2', vec + '.z', curves[2].points), fac)
elif node.type == 'CURVE_RGB': # RGB Curves
fac = parse_value_input(node.inputs[0])
vec = parse_vector_input(node.inputs[1])
curves = node.mapping.curves
name = node_name(node.name)
# mapping.curves[0].points[0].handle_type
return '(sqrt(vec3({0}, {1}, {2}) * vec3({4}, {5}, {6})) * {3})'.format(\
vector_curve(name + '0', vec + '.x', curves[0].points), vector_curve(name + '1', vec + '.y', curves[1].points), vector_curve(name + '2', vec + '.z', curves[2].points), fac,\
vector_curve(name + '3a', vec + '.x', curves[3].points), vector_curve(name + '3b', vec + '.y', curves[3].points), vector_curve(name + '3c', vec + '.z', curves[3].points))
elif node.type == 'COMBHSV':
curshader.add_function(c_functions.str_hue_sat)
h = parse_value_input(node.inputs[0])
s = parse_value_input(node.inputs[1])
v = parse_value_input(node.inputs[2])
return 'hsv_to_rgb(vec3({0}, {1}, {2}))'.format(h,s,v)
elif node.type == 'COMBRGB':
r = parse_value_input(node.inputs[0])
g = parse_value_input(node.inputs[1])
b = parse_value_input(node.inputs[2])
return 'vec3({0}, {1}, {2})'.format(r, g, b)
elif node.type == 'WAVELENGTH':
curshader.add_function(c_functions.str_wavelength_to_rgb)
wl = parse_value_input(node.inputs[0])
# Roughly map to cycles - 450 to 600 nanometers
return 'wavelength_to_rgb(({0} - 450.0) / 150.0)'.format(wl)
# Vector
elif node.type == 'CAMERA':
# View Vector in camera space
return 'vVecCam'
elif node.type == 'NEW_GEOMETRY':
if socket == node.outputs[0]: # Position
return 'wposition'
elif socket == node.outputs[1]: # Normal
return 'n' if curshader.shader_type == 'frag' else 'wnormal'
elif socket == node.outputs[2]: # Tangent
return 'wtangent'
elif socket == node.outputs[3]: # True Normal
return 'n' if curshader.shader_type == 'frag' else 'wnormal'
elif socket == node.outputs[4]: # Incoming
return 'vVec'
elif socket == node.outputs[5]: # Parametric
return 'mposition'
elif node.type == 'HAIR_INFO':
return 'vec3(0.0)' # Tangent Normal
elif node.type == 'OBJECT_INFO':
return 'wposition'
elif node.type == 'PARTICLE_INFO':
if socket == node.outputs[3]: # Location
particle_info['location'] = True
return 'p_location' if arm.utils.get_rp().arm_particles == 'GPU' else 'vec3(0.0)'
elif socket == node.outputs[5]: # Velocity
particle_info['velocity'] = True
return 'p_velocity' if arm.utils.get_rp().arm_particles == 'GPU' else 'vec3(0.0)'
elif socket == node.outputs[6]: # Angular Velocity
particle_info['angular_velocity'] = True
return 'vec3(0.0)'
elif node.type == 'TANGENT':
return 'wtangent'
elif node.type == 'TEX_COORD':
#obj = node.object
#instance = node.from_instance
if socket == node.outputs[0]: # Generated - bounds
return 'bposition'
elif socket == node.outputs[1]: # Normal
return 'n'
elif socket == node.outputs[2]: # UV
con.add_elem('tex', 'short2norm')
return 'vec3(texCoord.x, 1.0 - texCoord.y, 0.0)'
elif socket == node.outputs[3]: # Object
return 'mposition'
elif socket == node.outputs[4]: # Camera
return 'vec3(0.0)' # 'vposition'
elif socket == node.outputs[5]: # Window
return 'vec3(0.0)' # 'wvpposition'
elif socket == node.outputs[6]: # Reflection
return 'vec3(0.0)'
elif node.type == 'UVMAP':
#instance = node.from_instance
con.add_elem('tex', 'short2norm')
mat = mat_get_material()
mat_users = mat_get_material_users()
if mat_users != None and mat in mat_users:
mat_user = mat_users[mat][0]
if hasattr(mat_user.data, 'uv_layers'):
lays = mat_user.data.uv_layers
# Second uvmap referenced
if len(lays) > 1 and node.uv_map == lays[1].name:
con.add_elem('tex1', 'short2norm')
return 'vec3(texCoord1.x, 1.0 - texCoord1.y, 0.0)'
return 'vec3(texCoord.x, 1.0 - texCoord.y, 0.0)'
elif node.type == 'BUMP':
# Interpolation strength
strength = parse_value_input(node.inputs[0])
# Height multiplier
# distance = parse_value_input(node.inputs[1])
sample_bump = True
height = parse_value_input(node.inputs[2])
sample_bump = False
nor = parse_vector_input(node.inputs[3])
if sample_bump_res != '':
if node.invert:
ext = ['1', '2', '3', '4']
else:
ext = ['2', '1', '4', '3']
curshader.write('float {0}_fh1 = {0}_{1} - {0}_{2}; float {0}_fh2 = {0}_{3} - {0}_{4};'.format(sample_bump_res, ext[0], ext[1], ext[2], ext[3]))
curshader.write('{0}_fh1 *= ({1}) * 3.0; {0}_fh2 *= ({1}) * 3.0;'.format(sample_bump_res, strength))
curshader.write('vec3 {0}_a = normalize(vec3(2.0, 0.0, {0}_fh1));'.format(sample_bump_res))
curshader.write('vec3 {0}_b = normalize(vec3(0.0, 2.0, {0}_fh2));'.format(sample_bump_res))
res = 'normalize(mat3({0}_a, {0}_b, normalize(vec3({0}_fh1, {0}_fh2, 2.0))) * n)'.format(sample_bump_res)
sample_bump_res = ''
else:
res = 'n'
return res
elif node.type == 'MAPPING':
out = parse_vector_input(node.inputs[0])
if node.scale[0] != 1.0 or node.scale[1] != 1.0 or node.scale[2] != 1.0:
out = '({0} * vec3({1}, {2}, {3}))'.format(out, node.scale[0], node.scale[1], node.scale[2])
if node.rotation[2] != 0.0:
# ZYX rotation, Z axis for now..
a = node.rotation[2]
# x * cos(theta) - y * sin(theta)
# x * sin(theta) + y * cos(theta)
out = 'vec3({0}.x * {1} - ({0}.y) * {2}, {0}.x * {2} + ({0}.y) * {1}, 0.0)'.format(out, math.cos(a), math.sin(a))
# if node.rotation[1] != 0.0:
# a = node.rotation[1]
# out = 'vec3({0}.x * {1} - {0}.z * {2}, {0}.x * {2} + {0}.z * {1}, 0.0)'.format(out, math.cos(a), math.sin(a))
# if node.rotation[0] != 0.0:
# a = node.rotation[0]
# out = 'vec3({0}.y * {1} - {0}.z * {2}, {0}.y * {2} + {0}.z * {1}, 0.0)'.format(out, math.cos(a), math.sin(a))
if node.translation[0] != 0.0 or node.translation[1] != 0.0 or node.translation[2] != 0.0:
out = '({0} + vec3({1}, {2}, {3}))'.format(out, node.translation[0], node.translation[1], node.translation[2])
if node.use_min:
out = 'max({0}, vec3({1}, {2}, {3}))'.format(out, node.min[0], node.min[1])
if node.use_max:
out = 'min({0}, vec3({1}, {2}, {3}))'.format(out, node.max[0], node.max[1])
return out
elif node.type == 'NORMAL':
if socket == node.outputs[0]:
return to_vec3(node.outputs[0].default_value)
elif socket == node.outputs[1]: # TODO: is parse_value path preferred?
nor = parse_vector_input(node.inputs[0])
return 'vec3(dot({0}, {1}))'.format(to_vec3(node.outputs[0].default_value), nor)
elif node.type == 'NORMAL_MAP':
if curshader == tese:
return parse_vector_input(node.inputs[1])
else:
#space = node.space
#map = node.uv_map
# Color
parse_normal_map_color_input(node.inputs[1], node.inputs[0])
return None
elif node.type == 'VECT_TRANSFORM':
#type = node.vector_type
#conv_from = node.convert_from
#conv_to = node.convert_to
# Pass throuh
return parse_vector_input(node.inputs[0])
elif node.type == 'COMBXYZ':
x = parse_value_input(node.inputs[0])
y = parse_value_input(node.inputs[1])
z = parse_value_input(node.inputs[2])
return 'vec3({0}, {1}, {2})'.format(x, y, z)
elif node.type == 'VECT_MATH':
vec1 = parse_vector_input(node.inputs[0])
vec2 = parse_vector_input(node.inputs[1])
op = node.operation
if op == 'ADD':
return '({0} + {1})'.format(vec1, vec2)
elif op == 'SUBTRACT':
return '({0} - {1})'.format(vec1, vec2)
elif op == 'AVERAGE':
return '(({0} + {1}) / 2.0)'.format(vec1, vec2)
elif op == 'DOT_PRODUCT':
return 'vec3(dot({0}, {1}))'.format(vec1, vec2)
elif op == 'CROSS_PRODUCT':
return 'cross({0}, {1})'.format(vec1, vec2)
elif op == 'NORMALIZE':
return 'normalize({0})'.format(vec1)
elif node.type == 'DISPLACEMENT':
height = parse_value_input(node.inputs[0])
midlevel = parse_value_input(node.inputs[1])
scale = parse_value_input(node.inputs[2])
nor = parse_vector_input(node.inputs[3])
return 'vec3({0})'.format(height)
def parse_normal_map_color_input(inp, strength_input=None):
global normal_parsed
global frag
if basecol_only:
return
if inp.is_linked == False:
return
if normal_parsed:
return
normal_parsed = True
frag.write_normal += 1
if not get_arm_export_tangents() or mat_get_material().arm_decal: # Compute TBN matrix
frag.write('vec3 texn = ({0}) * 2.0 - 1.0;'.format(parse_vector_input(inp)))
frag.write('texn.y = -texn.y;')
frag.add_include('std/normals.glsl')
frag.write('mat3 TBN = cotangentFrame(n, -vVec, texCoord);')
frag.write('n = TBN * normalize(texn);')
else:
frag.write('vec3 n = ({0}) * 2.0 - 1.0;'.format(parse_vector_input(inp)))
if strength_input != None:
strength = parse_value_input(strength_input)
if strength != '1.0':
frag.write('n.xy *= {0};'.format(strength))
frag.write('n = normalize(TBN * n);')
con.add_elem('tang', 'short4norm')
frag.write_normal -= 1
def parse_value_input(inp):
if inp.is_linked:
l = inp.links[0]
if l.from_node.type == 'REROUTE':
return parse_value_input(l.from_node.inputs[0])
res_var = write_result(l)
st = l.from_socket.type
if st == 'RGB' or st == 'RGBA' or st == 'VECTOR':
return '{0}.x'.format(res_var)
else: # VALUE
return res_var
else:
if mat_batch() and inp.is_uniform:
return to_uniform(inp)
else:
return to_vec1(inp.default_value)
def parse_value(node, socket):
global particle_info
global sample_bump
if node.type == 'GROUP':
if node.node_tree.name.startswith('Armory PBR'):
# Displacement
if socket == node.outputs[1]:
return parse_value_input(node.inputs[7])
else:
return None
else:
return parse_group(node, socket)
elif node.type == 'GROUP_INPUT':
return parse_group_input(node, socket)
elif node.type == 'ATTRIBUTE':
# Pass time till drivers are implemented
if node.attribute_name == 'time':
curshader.add_uniform('float time', link='_time')
return 'time'
else:
return '0.0'
elif node.type == 'CAMERA':
# View Z Depth
if socket == node.outputs[1]:
curshader.add_include('std/math.glsl')
curshader.add_uniform('vec2 cameraProj', link='_cameraPlaneProj')
return 'linearize(gl_FragCoord.z, cameraProj)'
# View Distance
else:
curshader.add_uniform('vec3 eye', link='_cameraPosition')
return 'distance(eye, wposition)'
elif node.type == 'FRESNEL':
curshader.add_function(c_functions.str_fresnel)
ior = parse_value_input(node.inputs[0])
if node.inputs[1].is_linked:
dotnv = 'dot({0}, vVec)'.format(parse_vector_input(node.inputs[1]))
else:
dotnv = 'dotNV'
return 'fresnel({0}, {1})'.format(ior, dotnv)
elif node.type == 'NEW_GEOMETRY':
if socket == node.outputs[6]: # Backfacing
return '(1.0 - float(gl_FrontFacing))'
elif socket == node.outputs[7]: # Pointiness
return '0.0'
elif node.type == 'HAIR_INFO':
# Is Strand
# Intercept
# Thickness
return '0.5'
elif node.type == 'LAYER_WEIGHT':
blend = parse_value_input(node.inputs[0])
if node.inputs[1].is_linked:
dotnv = 'dot({0}, vVec)'.format(parse_vector_input(node.inputs[1]))
else:
dotnv = 'dotNV'
if socket == node.outputs[0]: # Fresnel
curshader.add_function(c_functions.str_fresnel)
return 'fresnel(1.0 / (1.0 - {0}), {1})'.format(blend, dotnv)
elif socket == node.outputs[1]: # Facing
return '(1.0 - pow({0}, ({1} < 0.5) ? 2.0 * {1} : 0.5 / (1.0 - {1})))'.format(dotnv, blend)
elif node.type == 'LIGHT_PATH':
if socket == node.outputs[0]: # Is Camera Ray
return '1.0'
elif socket == node.outputs[1]: # Is Shadow Ray
return '0.0'
elif socket == node.outputs[2]: # Is Diffuse Ray
return '1.0'
elif socket == node.outputs[3]: # Is Glossy Ray
return '1.0'
elif socket == node.outputs[4]: # Is Singular Ray
return '0.0'
elif socket == node.outputs[5]: # Is Reflection Ray
return '0.0'
elif socket == node.outputs[6]: # Is Transmission Ray
return '0.0'
elif socket == node.outputs[7]: # Ray Length
return '0.0'
elif socket == node.outputs[8]: # Ray Depth
return '0.0'
elif socket == node.outputs[9]: # Transparent Depth
return '0.0'
elif socket == node.outputs[10]: # Transmission Depth
return '0.0'
elif node.type == 'OBJECT_INFO':
if socket == node.outputs[1]: # Object Index
curshader.add_uniform('float objectInfoIndex', link='_objectInfoIndex')
return 'objectInfoIndex'
elif socket == node.outputs[2]: # Material Index
curshader.add_uniform('float objectInfoMaterialIndex', link='_objectInfoMaterialIndex')
return 'objectInfoMaterialIndex'
elif socket == node.outputs[3]: # Random
curshader.add_uniform('float objectInfoRandom', link='_objectInfoRandom')
return 'objectInfoRandom'
elif node.type == 'PARTICLE_INFO':
if socket == node.outputs[0]: # Index
particle_info['index'] = True
return 'p_index' if arm.utils.get_rp().arm_particles == 'GPU' else '0.0'
elif socket == node.outputs[1]: # Age
particle_info['age'] = True
return 'p_age' if arm.utils.get_rp().arm_particles == 'GPU' else '0.0'
elif socket == node.outputs[2]: # Lifetime
particle_info['lifetime'] = True
return 'p_lifetime' if arm.utils.get_rp().arm_particles == 'GPU' else '0.0'
elif socket == node.outputs[4]: # Size
particle_info['size'] = True
return '1.0'
elif node.type == 'VALUE':
if node.arm_material_param:
nn = 'param_' + node_name(node.name)
curshader.add_uniform('float {0}'.format(nn), link='{0}'.format(node.name))
return nn
else:
return to_vec1(node.outputs[0].default_value)
elif node.type == 'WIREFRAME':
#node.use_pixel_size
# size = parse_value_input(node.inputs[0])
return '0.0'
elif node.type == 'TEX_BRICK':
curshader.add_function(c_functions.str_tex_brick)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[4])
res = 'tex_brick_f({0} * {1})'.format(co, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_CHECKER':
curshader.add_function(c_functions.str_tex_checker)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[3])
res = 'tex_checker_f({0}, {1})'.format(co, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_GRADIENT':
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
grad = node.gradient_type
if grad == 'LINEAR':
f = '{0}.x'.format(co)
elif grad == 'QUADRATIC':
f = '0.0'
elif grad == 'EASING':
f = '0.0'
elif grad == 'DIAGONAL':
f = '({0}.x + {0}.y) * 0.5'.format(co)
elif grad == 'RADIAL':
f = 'atan({0}.y, {0}.x) / PI2 + 0.5'.format(co)
elif grad == 'QUADRATIC_SPHERE':
f = '0.0'
elif grad == 'SPHERICAL':
f = 'max(1.0 - sqrt({0}.x * {0}.x + {0}.y * {0}.y + {0}.z * {0}.z), 0.0)'.format(co)
res = '(clamp({0}, 0.0, 1.0))'.format(f)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_IMAGE':
# Already fetched
if is_parsed(store_var_name(node)):
return '{0}.a'.format(store_var_name(node))
tex_name = safesrc(node.name)
tex = make_texture(node, tex_name)
tex_link = node.name if node.arm_material_param else None
if tex != None:
curshader.write_textures += 1
res = '{0}.a'.format(texture_store(node, tex, tex_name, tex_link=tex_link))
curshader.write_textures -= 1
return res
elif node.image == None: # Empty texture
tex = {}
tex['name'] = tex_name
tex['file'] = ''
return '{0}.a'.format(texture_store(node, tex, tex_name, True, tex_link=tex_link))
else:
tex_store = store_var_name(node) # Pink color for missing texture
curshader.write('vec4 {0} = vec4(1.0, 0.0, 1.0, 1.0);'.format(tex_store))
return '{0}.a'.format(tex_store)
elif node.type == 'TEX_MAGIC':
curshader.add_function(c_functions.str_tex_magic)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
res = 'tex_magic_f({0} * {1} * 4.0)'.format(co, scale)
if sample_bump:
write_bump(node, res, 0.1)
return res
elif node.type == 'TEX_MUSGRAVE':
# Fall back to noise
curshader.add_function(c_functions.str_tex_musgrave)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
# detail = parse_value_input(node.inputs[2])
# distortion = parse_value_input(node.inputs[3])
res = 'tex_musgrave_f({0} * {1} * 0.5)'.format(co, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_NOISE':
curshader.add_function(c_functions.str_tex_noise)
assets_add(get_sdk_path() + '/armory/Assets/' + 'noise256.png')
assets_add_embedded_data('noise256.png')
curshader.add_uniform('sampler2D snoise256', link='_noise256')
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
# detail = parse_value_input(node.inputs[2])
# distortion = parse_value_input(node.inputs[3])
res = 'tex_noise({0} * {1})'.format(co, scale)
if sample_bump:
write_bump(node, res, 0.1)
return res
elif node.type == 'TEX_POINTDENSITY':
return '0.0'
elif node.type == 'TEX_VORONOI':
curshader.add_function(c_functions.str_tex_voronoi)
assets_add(get_sdk_path() + '/armory/Assets/' + 'noise256.png')
assets_add_embedded_data('noise256.png')
curshader.add_uniform('sampler2D snoise256', link='_noise256')
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
if node.coloring == 'INTENSITY':
res = 'tex_voronoi({0} * {1}).a'.format(co, scale)
else: # CELLS
res = 'tex_voronoi({0} * {1}).r'.format(co, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'TEX_WAVE':
curshader.add_function(c_functions.str_tex_wave)
if node.inputs[0].is_linked:
co = parse_vector_input(node.inputs[0])
else:
co = 'bposition'
scale = parse_value_input(node.inputs[1])
res = 'tex_wave_f({0} * {1})'.format(co, scale)
if sample_bump:
write_bump(node, res)
return res
elif node.type == 'LIGHT_FALLOFF':
# Constant, linear, quadratic
# Shaders default to quadratic for now
return '1.0'
elif node.type == 'NORMAL':
nor = parse_vector_input(node.inputs[0])
return 'dot({0}, {1})'.format(to_vec3(node.outputs[0].default_value), nor)
elif node.type == 'VALTORGB': # ColorRamp
return '1.0'
elif node.type == 'MATH':
val1 = parse_value_input(node.inputs[0])
val2 = parse_value_input(node.inputs[1])
op = node.operation
if op == 'ADD':
out_val = '({0} + {1})'.format(val1, val2)
elif op == 'SUBTRACT':
out_val = '({0} - {1})'.format(val1, val2)
elif op == 'MULTIPLY':
out_val = '({0} * {1})'.format(val1, val2)
elif op == 'DIVIDE':
out_val = '({0} / {1})'.format(val1, val2)
elif op == 'SINE':
out_val = 'sin({0})'.format(val1)
elif op == 'COSINE':
out_val = 'cos({0})'.format(val1)
elif op == 'TANGENT':
out_val = 'tan({0})'.format(val1)
elif op == 'ARCSINE':
out_val = 'asin({0})'.format(val1)
elif op == 'ARCCOSINE':
out_val = 'acos({0})'.format(val1)
elif op == 'ARCTANGENT':
out_val = 'atan({0})'.format(val1)
elif op == 'POWER':
out_val = 'pow({0}, {1})'.format(val1, val2)
elif op == 'LOGARITHM':
out_val = 'log({0})'.format(val1)
elif op == 'MINIMUM':
out_val = 'min({0}, {1})'.format(val1, val2)
elif op == 'MAXIMUM':
out_val = 'max({0}, {1})'.format(val1, val2)
elif op == 'ROUND':
# out_val = 'round({0})'.format(val1)
out_val = 'floor({0} + 0.5)'.format(val1)
elif op == 'LESS_THAN':
out_val = 'float({0} < {1})'.format(val1, val2)
elif op == 'GREATER_THAN':
out_val = 'float({0} > {1})'.format(val1, val2)
elif op == 'MODULO':
# out_val = 'float({0} % {1})'.format(val1, val2)
out_val = 'mod({0}, {1})'.format(val1, val2)
elif op == 'ABSOLUTE':
out_val = 'abs({0})'.format(val1)
if node.use_clamp:
return 'clamp({0}, 0.0, 1.0)'.format(out_val)
else:
return out_val
elif node.type == 'RGBTOBW':
col = parse_vector_input(node.inputs[0])
return '((({0}.r * 0.3 + {0}.g * 0.59 + {0}.b * 0.11) / 3.0) * 2.5)'.format(col)
elif node.type == 'SEPHSV':
return '0.0'
elif node.type == 'SEPRGB':
col = parse_vector_input(node.inputs[0])
if socket == node.outputs[0]:
return '{0}.r'.format(col)
elif socket == node.outputs[1]:
return '{0}.g'.format(col)
elif socket == node.outputs[2]:
return '{0}.b'.format(col)
elif node.type == 'SEPXYZ':
vec = parse_vector_input(node.inputs[0])
if socket == node.outputs[0]:
return '{0}.x'.format(vec)
elif socket == node.outputs[1]:
return '{0}.y'.format(vec)
elif socket == node.outputs[2]:
return '{0}.z'.format(vec)
elif node.type == 'VECT_MATH':
vec1 = parse_vector_input(node.inputs[0])
vec2 = parse_vector_input(node.inputs[1])
op = node.operation
if op == 'DOT_PRODUCT':
return 'dot({0}, {1})'.format(vec1, vec2)
else:
return '0.0'
##
def vector_curve(name, fac, points):
# Write Ys array
ys_var = name + '_ys'
curshader.write('float {0}[{1}];'.format(ys_var, len(points))) # TODO: Make const
for i in range(0, len(points)):
curshader.write('{0}[{1}] = {2};'.format(ys_var, i, points[i].location[1]))
# Get index
fac_var = name + '_fac'
curshader.write('float {0} = {1};'.format(fac_var, fac))
index = '0'
for i in range(1, len(points)):
index += ' + ({0} > {1} ? 1 : 0)'.format(fac_var, points[i].location[0])
# Write index
index_var = name + '_i'
curshader.write('int {0} = {1};'.format(index_var, index))
# Linear
# Write Xs array
facs_var = name + '_xs'
curshader.write('float {0}[{1}];'.format(facs_var, len(points))) # TODO: Make const
for i in range(0, len(points)):
curshader.write('{0}[{1}] = {2};'.format(facs_var, i, points[i].location[0]))
# Map vector
return 'mix({0}[{1}], {0}[{1} + 1], ({2} - {3}[{1}]) * (1.0 / ({3}[{1} + 1] - {3}[{1}]) ))'.format(ys_var, index_var, fac_var, facs_var)
def write_normal(inp):
if inp.is_linked and inp.links[0].from_node.type != 'GROUP_INPUT':
normal_res = parse_vector_input(inp)
if normal_res != None:
curshader.write('n = {0};'.format(normal_res))
def is_parsed(s):
global parsed
return s in parsed
def res_var_name(node, socket):
return node_name(node.name) + '_' + safesrc(socket.name) + '_res'
def write_result(l):
global parsed
res_var = res_var_name(l.from_node, l.from_socket)
# Unparsed node
if not is_parsed(res_var):
parsed[res_var] = True
st = l.from_socket.type
if st == 'RGB' or st == 'RGBA' or st == 'VECTOR':
res = parse_vector(l.from_node, l.from_socket)
if res == None:
return None
curshader.write('vec3 {0} = {1};'.format(res_var, res))
elif st == 'VALUE':
res = parse_value(l.from_node, l.from_socket)
if res == None:
return None
curshader.write('float {0} = {1};'.format(res_var, res))
# Normal map already parsed, return
elif l.from_node.type == 'NORMAL_MAP':
return None
return res_var
def glsl_type(t):
if t == 'RGB' or t == 'RGBA' or t == 'VECTOR':
return 'vec3'
else:
return 'float'
def to_uniform(inp):
uname = safesrc(inp.node.name) + safesrc(inp.name)
curshader.add_uniform(glsl_type(inp.type) + ' ' + uname)
return uname
def store_var_name(node):
return node_name(node.name) + '_store'
def texture_store(node, tex, tex_name, to_linear=False, tex_link=None):
global sample_bump
global sample_bump_res
global parsed
tex_store = store_var_name(node)
if is_parsed(tex_store):
return tex_store
parsed[tex_store] = True
mat_bind_texture(tex)
con.add_elem('tex', 'short2norm')
curshader.add_uniform('sampler2D {0}'.format(tex_name), link=tex_link)
if node.inputs[0].is_linked:
uv_name = parse_vector_input(node.inputs[0])
uv_name = 'vec2({0}.x, 1.0 - {0}.y)'.format(uv_name)
else:
uv_name = 'texCoord'
if mat_texture_grad():
curshader.write('vec4 {0} = textureGrad({1}, {2}.xy, g2.xy, g2.zw);'.format(tex_store, tex_name, uv_name))
else:
curshader.write('vec4 {0} = texture({1}, {2}.xy);'.format(tex_store, tex_name, uv_name))
if sample_bump:
sample_bump_res = tex_store
curshader.write('float {0}_1 = textureOffset({1}, {2}.xy, ivec2(-2, 0)).r;'.format(tex_store, tex_name, uv_name))
curshader.write('float {0}_2 = textureOffset({1}, {2}.xy, ivec2(2, 0)).r;'.format(tex_store, tex_name, uv_name))
curshader.write('float {0}_3 = textureOffset({1}, {2}.xy, ivec2(0, -2)).r;'.format(tex_store, tex_name, uv_name))
curshader.write('float {0}_4 = textureOffset({1}, {2}.xy, ivec2(0, 2)).r;'.format(tex_store, tex_name, uv_name))
sample_bump = False
if to_linear:
curshader.write('{0}.rgb = pow({0}.rgb, vec3(2.2));'.format(tex_store))
return tex_store
def write_bump(node, res, scl=0.001):
global sample_bump
global sample_bump_res
sample_bump_res = store_var_name(node) + '_bump'
# Testing.. get function parts..
ar = res.split('(', 1)
pre = ar[0] + '('
if ',' in ar[1]:
ar2 = ar[1].split(',', 1)
co = ar2[0]
post = ',' + ar2[1]
else:
co = ar[1][:-1]
post = ')'
curshader.write('float {0}_1 = {1}{2} + vec3(-{4}, 0.0, 0.0){3};'.format(sample_bump_res, pre, co, post, scl))
curshader.write('float {0}_2 = {1}{2} + vec3({4}, 0.0, {4}){3};'.format(sample_bump_res, pre, co, post, scl))
curshader.write('float {0}_3 = {1}{2} + vec3(0.0, -{4}, 0.0){3};'.format(sample_bump_res, pre, co, post, scl))
curshader.write('float {0}_4 = {1}{2} + vec3(0.0, {4}, -{4}){3};'.format(sample_bump_res, pre, co, post, scl))
sample_bump = False
def to_vec1(v):
return str(v)
def to_vec3(v):
return 'vec3({0}, {1}, {2})'.format(v[0], v[1], v[2])
def node_by_type(nodes, ntype):
for n in nodes:
if n.type == ntype:
return n
def socket_index(node, socket):
for i in range(0, len(node.outputs)):
if node.outputs[i] == socket:
return i
def node_name(s):
for p in parents:
s = p.name + '_' + s
if curshader.write_textures > 0:
s += '_texread'
s = safesrc(s)
if '__' in s: # Consecutive _ are reserved
s = s.replace('_', '_x')
return s
##
def make_texture(image_node, tex_name, matname=None):
tex = {}
tex['name'] = tex_name
image = image_node.image
if matname == None:
matname = mat_state.material.name
if image == None:
return None
# Get filepath
filepath = image.filepath
if filepath == '':
if image.packed_file != None:
filepath = './' + image.name
has_ext = filepath.endswith('.jpg') or filepath.endswith('.png') or filepath.endswith('.hdr')
if not has_ext:
# Raw bytes, write converted .jpg to /unpacked
filepath += '.raw'
else:
arm.log.warn(matname + '/' + image.name + ' - invalid file path')
return None
# Reference image name
texpath = arm.utils.asset_path(filepath)
texfile = arm.utils.extract_filename(filepath)
tex['file'] = arm.utils.safestr(texfile)
s = tex['file'].rsplit('.', 1)
if len(s) == 1:
arm.log.warn(matname + '/' + image.name + ' - file extension required for image name')
return None
ext = s[1].lower()
do_convert = ext != 'jpg' and ext != 'png' and ext != 'hdr' and ext != 'mp4' # Convert image
if do_convert:
new_ext = 'png' if ext == 'tga' else 'jpg'
tex['file'] = tex['file'].rsplit('.', 1)[0] + '.' + new_ext
if image.packed_file != None or not is_ascii(texfile):
# Extract packed data / copy non-ascii texture
unpack_path = arm.utils.get_fp_build() + '/compiled/Assets/unpacked'
if not os.path.exists(unpack_path):
os.makedirs(unpack_path)
unpack_filepath = unpack_path + '/' + tex['file']
if do_convert:
if not os.path.isfile(unpack_filepath):
fmt = 'PNG' if new_ext == 'png' else 'JPEG'
arm.utils.unpack_image(image, unpack_filepath, file_format=fmt)
else:
# Write bytes if size is different or file does not exist yet
if image.packed_file != None:
if not os.path.isfile(unpack_filepath) or os.path.getsize(unpack_filepath) != image.packed_file.size:
with open(unpack_filepath, 'wb') as f:
f.write(image.packed_file.data)
# Copy non-ascii texture
else:
if not os.path.isfile(unpack_filepath) or os.path.getsize(unpack_filepath) != os.path.getsize(texpath):
shutil.copy(texpath, unpack_filepath)
arm.assets.add(unpack_filepath)
else:
if not os.path.isfile(arm.utils.asset_path(filepath)):
arm.log.warn('Material ' + matname + '/' + image.name + ' - file not found(' + filepath + ')')
return None
if do_convert:
unpack_path = arm.utils.get_fp_build() + '/compiled/Assets/unpacked'
if not os.path.exists(unpack_path):
os.makedirs(unpack_path)
converted_path = unpack_path + '/' + tex['file']
# TODO: delete cache when file changes
if not os.path.isfile(converted_path):
fmt = 'PNG' if new_ext == 'png' else 'JPEG'
arm.utils.convert_image(image, converted_path, file_format=fmt)
arm.assets.add(converted_path)
else:
# Link image path to assets
# TODO: Khamake converts .PNG to .jpg? Convert ext to lowercase on windows
if arm.utils.get_os() == 'win':
s = filepath.rsplit('.', 1)
arm.assets.add(arm.utils.asset_path(s[0] + '.' + s[1].lower()))
else:
arm.assets.add(arm.utils.asset_path(filepath))
# if image_format != 'RGBA32':
# tex['format'] = image_format
interpolation = image_node.interpolation
rpdat = arm.utils.get_rp()
texfilter = rpdat.arm_texture_filter
if texfilter == 'Anisotropic':
interpolation = 'Smart'
elif texfilter == 'Linear':
interpolation = 'Linear'
elif texfilter == 'Point':
interpolation = 'Closest'
# if image_node.color_space == NON_COLOR_DATA:
# interpolation = image_node.interpolation
# TODO: Blender seems to load full images on size request, cache size instead
powimage = is_pow(image.size[0]) and is_pow(image.size[1])
if interpolation == 'Cubic': # Mipmap linear
tex['mipmap_filter'] = 'linear'
tex['generate_mipmaps'] = True
elif interpolation == 'Smart': # Mipmap anisotropic
tex['min_filter'] = 'anisotropic'
tex['mipmap_filter'] = 'linear'
tex['generate_mipmaps'] = True
elif interpolation == 'Closest':
tex['min_filter'] = 'point'
tex['mag_filter'] = 'point'
# else defaults to linear
if image_node.extension != 'REPEAT': # Extend or clip
tex['u_addressing'] = 'clamp'
tex['v_addressing'] = 'clamp'
if image.source == 'MOVIE': # Just append movie texture trait for now
movie_trait = {}
movie_trait['type'] = 'Script'
movie_trait['class_name'] = 'armory.trait.internal.MovieTexture'
movie_trait['parameters'] = ['"' + tex['file'] + '"']
for o in mat_state.mat_armusers[mat_state.material]:
o['traits'].append(movie_trait)
tex['source'] = 'movie'
tex['file'] = '' # MovieTexture will load the video
return tex
def is_pow(num):
return ((num & (num - 1)) == 0) and num != 0
def is_ascii(s):
return len(s) == len(s.encode())
##
def get_rp_renderer():
return arm.utils.get_rp().rp_renderer
def get_arm_export_tangents():
return bpy.data.worlds['Arm'].arm_export_tangents
def safesrc(name):
return arm.utils.safesrc(name)
def get_sdk_path():
return arm.utils.get_sdk_path()
def disp_enabled():
return arm.utils.disp_enabled(arm.make_state.target)
def warn(text):
arm.log.warn(text)
def assets_add(path):
arm.assets.add(path)
def assets_add_embedded_data(path):
arm.assets.add_embedded_data(path)
def mat_name():
return mat_state.material.name
def mat_batch():
return mat_state.batch
def mat_bind_texture(tex):
mat_state.bind_textures.append(tex)
def mat_texture_grad():
return mat_state.texture_grad
def mat_get_material():
return mat_state.material
def mat_get_material_users():
return mat_state.mat_users