X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=blender%2Fio_mspgl%2Fmaterial.py;h=633f030f2ede62bc82c487ec8eb454e2e85b98b4;hb=5606e48ae489255882203abd3976033d4cdc519c;hp=87e9479bbc676c309495d39b527a1c1848bef6f4;hpb=563f11dd3e08263c8094c124c862fb6a398708f2;p=libs%2Fgl.git diff --git a/blender/io_mspgl/material.py b/blender/io_mspgl/material.py index 87e9479b..633f030f 100644 --- a/blender/io_mspgl/material.py +++ b/blender/io_mspgl/material.py @@ -8,58 +8,119 @@ def compute_render_method_hash(material): descr += "{}={}".format(m.tag, m.shader) return hash(descr) -def check_group(node_tree, group, func): - from .util import get_linked_node_and_socket - - output = group.node_tree.nodes["Group Output"] - from_node, _ = get_linked_node_and_socket(group.node_tree, output.inputs[0]) - if from_node: - from_node, _ = func(group.node_tree, from_node) - if from_node and from_node.type=='GROUP_INPUT': - return get_linked_node_and_socket(node_tree, group.inputs[0]) - return (None, None) +class PropertyNode: + def __init__(self, node_tree, node, socket): + self.node_tree = node_tree + self.node = node + self.socket = socket + self.type = None + self.data = None + self.input = None + + checks = [self.check_group, + self.check_scale, + self.check_gray, + self.check_extract, + self.check_normal, + self.check_invert_channels, + self.check_additive_blend, + self.check_texture] + for c in checks: + if c(): + break + + def set_input_from_linked(self, input_sock): + from .util import get_linked_node_and_socket -def check_invert_green(node_tree, node): - if node.type=='GROUP': - return check_group(node_tree, node, check_invert_green) - elif node.type!='COMBRGB': - return (None, None) + from_node, from_sock = get_linked_node_and_socket(self.node_tree, input_sock) + self.input = PropertyNode(self.node_tree, from_node, from_sock) + return self.input - from .util import get_linked_node_and_socket + def check_group(self): + if self.node.type!='GROUP': + return - green, _ = get_linked_node_and_socket(node_tree, node.inputs["G"]) - if not green or green.type!='MATH' or green.operation!='SUBTRACT': - return (None, None) - green, _ = get_linked_node_and_socket(node_tree, green.inputs[1]) + from .util import get_linked_node_and_socket - red, _ = get_linked_node_and_socket(node_tree, node.inputs["R"]) - blue, _ = get_linked_node_and_socket(node_tree, node.inputs["B"]) - if not red or red.type!='SEPRGB' or blue!=red or green!=red: - return (None, None) + output = self.node.node_tree.nodes["Group Output"] + from_node, from_sock = get_linked_node_and_socket(self.node.node_tree, output.inputs[0]) + inner = PropertyNode(self.node.node_tree, from_node, from_sock) + if inner.input: + # TODO This currently only supports a single operation inside the group + if inner.input.node.type=='GROUP_INPUT': + self.type = inner.type + self.data = inner.data + return self.set_input_from_linked(self.node.inputs[0]) + + def check_scale(self): + if self.node.type!='MATH': + return - return get_linked_node_and_socket(node_tree, red.inputs["Image"]) + if self.node.operation=='MULTIPLY': + for i in range(2): + if not self.node.inputs[i].is_linked: + self.type = 'SCALE' + self.data = self.node.inputs[i].default_value + return self.set_input_from_linked(self.node.inputs[1-i]) + + def check_gray(self): + if self.node.type=='RGBTOBW': + self.type = 'GRAY' + self.set_input_from_linked(self.node.inputs["Color"]) + + def check_extract(self): + if self.node.type=='SEPRGB': + self.type = 'EXTRACT' + self.data = self.socket.name[0] + return self.set_input_from_linked(self.node.inputs["Image"]) + + def check_normal(self): + if self.node.type=='NORMAL_MAP': + self.type = 'NORMAL' + return self.set_input_from_linked(self.node.inputs["Color"]) + + def check_invert_channels(self): + if self.node.type!='COMBRGB': + return -def check_additive_blend(node_tree, node): - if node.type=='GROUP': - return check_group(node_tree, node, check_additive_blend) - elif node.type=='ADD_SHADER': from .util import get_linked_node_and_socket - shader1, _ = get_linked_node_and_socket(node_tree, node.inputs[0]) - shader2, _ = get_linked_node_and_socket(node_tree, node.inputs[1]) - if shader1.type=='BSDF_TRANSPARENT': - return get_linked_node_and_socket(node_tree, node.inputs[1]) - elif shader2.type=='BSDF_TRANSPARENT': - return get_linked_node_and_socket(node_tree, node.inputs[0]) + separate = None + invert_channels = "" + for c in ("R", "G", "B"): + from_node, _ = get_linked_node_and_socket(self.node_tree, self.node.inputs[c]) + if from_node.type=='MATH' and from_node.operation=='SUBTRACT' and not from_node.inputs[0].is_linked and from_node.inputs[0].default_value==1.0: + invert_channels += c + from_node, _ = get_linked_node_and_socket(self.node_tree, from_node.inputs[1]) - return (None, None) + if from_node.type=='SEPRGB' and (separate is None or from_node==separate): + separate = from_node + else: + return + + self.type = 'INVERT' + self.data = invert_channels + + return self.set_input_from_linked(separate.inputs["Image"]) + + def check_additive_blend(self): + if self.node.type=='ADD_SHADER': + from .util import get_linked_node_and_socket + + for i in range(2): + shader, _ = get_linked_node_and_socket(self.node_tree, self.node.inputs[i]) + if shader.type=='BSDF_TRANSPARENT': + self.type = 'ADDITIVE' + return self.set_input_from_linked(self.node.inputs[1-i]) + + def check_texture(self): + if self.node.type=='TEX_IMAGE': + self.type = 'TEXTURE' def get_unlit_inputs(node_tree, node, additive): from .util import get_linked_node_and_socket - if node.type=='GROUP': - return check_group(node_tree, node, get_unlit_inputs) - elif node.type=='MIX_SHADER' and not additive: + if node.type=='MIX_SHADER' and not additive: shader1, _ = get_linked_node_and_socket(node_tree, node.inputs[1]) shader2, _ = get_linked_node_and_socket(node_tree, node.inputs[2]) if shader1.type=='BSDF_TRANSPARENT' and shader2.type=='EMISSION': @@ -89,8 +150,8 @@ class MaterialProperty: self.tex_keyword = tex_keyword self.value = value self.texture = None - self.tex_usage = None - self.invert_green = False + self.tex_channels = None + self.scale = 1.0 def set_from_input(self, node_tree, input_socket, alpha_socket=None): if self.keyword: @@ -105,35 +166,46 @@ class MaterialProperty: if self.tex_keyword: from .util import get_linked_node_and_socket - from_node, _ = get_linked_node_and_socket(node_tree, input_socket) + from_node, from_sock = get_linked_node_and_socket(node_tree, input_socket) alpha_from = None if from_node: - usage = None - if from_node.type=='NORMAL_MAP': - from_node, _ = get_linked_node_and_socket(node_tree, from_node.inputs["Color"]) - invert, _ = check_invert_green(node_tree, from_node) - if invert: - from_node = invert - self.invert_green = True - usage = 'RGB' - elif from_node.type=='RGBTOBW': - from_node, _ = get_linked_node_and_socket(node_tree, from_node.inputs["Color"]) + channels = None + top_node = PropertyNode(node_tree, from_node, from_sock) + n = top_node + while n: + if n.type=='NORMAL': + channels = ['R', 'G', 'B'] + elif n.type=='GRAY': + channels = ['Y'] + elif n.type=='EXTRACT': + channels = [n.data] + elif n.type=='INVERT': + channels = ['~'+c if c in n.data else c for c in channels] + elif n.type=='SCALE': + self.scale = n.data + elif n.type=='TEXTURE': + self.texture = n.node + n = n.input if alpha_socket: alpha_from, _ = get_linked_node_and_socket(node_tree, alpha_socket) - if alpha_from and alpha_from!=from_node: + if alpha_from and alpha_from!=self.texture: raise Exception("Separate textures for color and alpha are not supported") - if from_node.type=='TEX_IMAGE': - self.texture = from_node - if usage: - self.tex_usage = usage + if self.scale==0.0 and self.keyword and type(self.value)!=tuple: + self.texture = None + self.value = self.scale + elif self.scale!=1.0: + raise Exception("Unsupported material property scale {}".format(self.scale)) + elif self.texture: + if channels: + self.tex_channels = channels elif alpha_from: - self.tex_usage = 'RGBA' + self.tex_channels = ['R', 'G', 'B', 'A'] elif type(self.value)==tuple: - self.tex_usage = 'RGB' + self.tex_channels = ['R', 'G', 'B'] else: - self.tex_usage = 'GRAY' + self.tex_channels = ['Y'] else: raise Exception("Unsupported property input node type "+from_node.type) @@ -163,18 +235,18 @@ class Material: from .util import get_linked_node_and_socket - surface_node, _ = get_linked_node_and_socket(material.node_tree, out_node.inputs["Surface"]) - if not surface_node: + from_node, from_sock = get_linked_node_and_socket(material.node_tree, out_node.inputs["Surface"]) + if not from_node: if self.render_mode=='BUILTIN': raise Exception("Invalid configuration on material {}: Empty material with builtin rendering".format(self.name)) return - additive_node, _ = check_additive_blend(material.node_tree, surface_node) - if additive_node: + surface_node = PropertyNode(material.node_tree, from_node, from_sock) + if surface_node.type=='ADDITIVE': self.blend_type = 'ADDITIVE' - surface_node = additive_node + from_node = surface_node.input.node - if surface_node.type=='BSDF_PRINCIPLED': + if from_node.type=='BSDF_PRINCIPLED': self.type = "pbr" base_color = self.create_property("base_color", (0.8, 0.8, 0.8, 1.0)) @@ -183,13 +255,13 @@ class Material: normal = self.create_property("normal_map") emission = self.create_property("emission", (0.0, 0.0, 0.0)) - base_color.set_from_input(material.node_tree, surface_node.inputs["Base Color"], surface_node.inputs["Alpha"]) - metalness.set_from_input(material.node_tree, surface_node.inputs["Metallic"]) - roughness.set_from_input(material.node_tree, surface_node.inputs["Roughness"]) - normal.set_from_input(material.node_tree, surface_node.inputs["Normal"]) - emission.set_from_input(material.node_tree, surface_node.inputs["Emission"]) - elif surface_node.type=='EMISSION' or surface_node.type=='MIX_SHADER': - color_input, alpha_input = get_unlit_inputs(material.node_tree, surface_node, self.blend_type=='ADDITIVE') + base_color.set_from_input(material.node_tree, from_node.inputs["Base Color"], from_node.inputs["Alpha"]) + metalness.set_from_input(material.node_tree, from_node.inputs["Metallic"]) + roughness.set_from_input(material.node_tree, from_node.inputs["Roughness"]) + normal.set_from_input(material.node_tree, from_node.inputs["Normal"]) + emission.set_from_input(material.node_tree, from_node.inputs["Emission"]) + elif from_node.type=='EMISSION' or from_node.type=='MIX_SHADER': + color_input, alpha_input = get_unlit_inputs(material.node_tree, from_node, self.blend_type=='ADDITIVE') if not color_input: raise Exception("Unsupported configuration for unlit material {}".format(self.name)) @@ -201,7 +273,7 @@ class Material: if self.blend_type=='ADDITIVE' and alpha_input: self.blend_type = 'ADDITIVE_ALPHA' else: - raise Exception("Unsupported surface node type {} on material {}".format(surface_node.type, self.name)) + raise Exception("Unsupported surface node type {} on material {}".format(from_node.type, self.name)) sampler_settings = None for p in self.properties: