X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=blender%2Fio_mspgl%2Fmaterial.py;h=e92aee2f3e55303c0ddc25461316221e865c7df1;hp=73f33d5c29a669eccdb235e0823dea95a1086209;hb=74a5bc6159d2c753786a5ef6bf785263cd0538f1;hpb=2680cc0bf251db566753dbe9bf947ba6a4b083d2 diff --git a/blender/io_mspgl/material.py b/blender/io_mspgl/material.py index 73f33d5c..e92aee2f 100644 --- a/blender/io_mspgl/material.py +++ b/blender/io_mspgl/material.py @@ -8,43 +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, g_sock = 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, g_sock = get_linked_node_and_socket(node_tree, green.inputs[1]) + from .util import get_linked_node_and_socket - red, r_sock = get_linked_node_and_socket(node_tree, node.inputs["R"]) - blue, b_sock = 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 get_unlit_inputs(node_tree, node): - if node.type=='GROUP': - return check_group(node_tree, node, get_unlit_inputs) - elif node.type=='MIX_SHADER': from .util import get_linked_node_and_socket + 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]) + + 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=='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': @@ -55,7 +131,17 @@ def get_unlit_inputs(node_tree, node): if factor_from==color_from: return (color_input, factor_input) elif node.type=='EMISSION': - return (node.inputs["Color"], None) + color_input = node.inputs["Color"] + if additive: + color_from, _ = get_linked_node_and_socket(node_tree, color_input) + if color_from.type=='MIX_RGB' and color_from.blend_type=='MIX': + mix_factor_input = color_from.inputs["Fac"] + mix_factor_from, _ = get_linked_node_and_socket(node_tree, mix_factor_input) + mix_color_input = color_from.inputs["Color2"] + mix_color_from, _ = get_linked_node_and_socket(node_tree, mix_color_input) + if mix_factor_from==mix_color_from: + return (mix_color_input, mix_factor_input) + return (color_input, None) return (None, None) class MaterialProperty: @@ -64,8 +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: @@ -80,35 +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) @@ -122,8 +219,11 @@ class Material: self.technique = material.technique self.render_methods = material.render_methods[:] self.uniforms = material.uniforms[:] + self.face_cull = 'BACK' if material.use_backface_culling else 'NONE' self.receive_shadows = material.receive_shadows self.cast_shadows = (material.shadow_method!='NONE') + self.blend_type = 'ALPHA' if material.blend_method=='BLEND' else 'NONE' + self.alpha_cutoff = material.alpha_threshold if material.blend_method=='CLIP' else 0.0 self.image_based_lighting = material.image_based_lighting if self.render_mode=='EXTERNAL' and not self.technique: @@ -137,12 +237,18 @@ 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 - elif surface_node.type=='BSDF_PRINCIPLED': + + surface_node = PropertyNode(material.node_tree, from_node, from_sock) + if surface_node.type=='ADDITIVE': + self.blend_type = 'ADDITIVE' + from_node = surface_node.input.node + + if from_node.type=='BSDF_PRINCIPLED': self.type = "pbr" base_color = self.create_property("base_color", (0.8, 0.8, 0.8, 1.0)) @@ -151,13 +257,13 @@ 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) + 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)) @@ -166,8 +272,10 @@ class Material: color = self.create_property("color", "texture", (1.0, 1.0, 1.0, 1.0)) color.set_from_input(material.node_tree, color_input, alpha_input) + 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: