X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=blender%2Fio_mspgl%2Fmaterial.py;h=a45e881571aea4c0da4b5678f3662eb189863d13;hb=HEAD;hp=ff145515db5febe6cdf1a518237e5a7d186d1e77;hpb=f2d504006ec97c7d84e8059c48f5a37e005ece5f;p=libs%2Fgl.git diff --git a/blender/io_mspgl/material.py b/blender/io_mspgl/material.py index ff145515..b1d2756e 100644 --- a/blender/io_mspgl/material.py +++ b/blender/io_mspgl/material.py @@ -19,6 +19,7 @@ class PropertyNode: checks = [self.check_group, self.check_scale, + self.check_tint, self.check_gray, self.check_extract, self.check_normal, @@ -63,6 +64,17 @@ class PropertyNode: self.data = self.node.inputs[i].default_value return self.set_input_from_linked(self.node.inputs[1-i]) + def check_tint(self): + if self.node.type!='MIX_RGB': + return + + if self.node.blend_type=='MULTIPLY': + for i in range(2): + if not self.node.inputs[1+i].is_linked: + self.type = 'TINT' + self.data = self.node.inputs[1+i].default_value[:] + return self.set_input_from_linked(self.node.inputs[2-i]) + def check_gray(self): if self.node.type=='RGBTOBW': self.type = 'GRAY' @@ -144,6 +156,33 @@ def get_unlit_inputs(node_tree, node, additive): return (color_input, None) return (None, None) +def get_splat_layers(node_tree, node): + from .util import get_linked_node_and_socket + + if node.type!='MIX_SHADER': + return + + layers = [] + while True: + factor_from, factor_sock = get_linked_node_and_socket(node_tree, node.inputs["Fac"]) + if factor_from.type!='SEPRGB': + return + + factor_from, _ = get_linked_node_and_socket(node_tree, factor_from.inputs["Image"]) + if factor_from.type!='VERTEX_COLOR': + return + + shader1, _ = get_linked_node_and_socket(node_tree, node.inputs[1]) + shader2, _ = get_linked_node_and_socket(node_tree, node.inputs[2]) + layers.append((shader2, factor_from.layer_name, factor_sock.name[0])) + if shader1.type=='MIX_SHADER': + node = shader1 + else: + layers.append((shader1, None, None)) + break + + return layers + class MaterialProperty: def __init__(self, keyword, tex_keyword, value): self.keyword = keyword @@ -152,6 +191,7 @@ class MaterialProperty: self.texture = None self.tex_channels = None self.scale = 1.0 + self.tint = None def set_from_input(self, node_tree, input_socket, alpha_socket=None): if self.keyword: @@ -183,6 +223,8 @@ class MaterialProperty: channels = ['~'+c if c in n.data else c for c in channels] elif n.type=='SCALE': self.scale = n.data + elif n.type=='TINT': + self.tint = n.data elif n.type=='TEXTURE': self.texture = n.node n = n.input @@ -209,11 +251,18 @@ class MaterialProperty: else: raise Exception("Unsupported property input node type "+from_node.type) +class SubMaterial: + def __init__(self): + self.properties = [] + self.weight_source = (None, None) + class Material: def __init__(self, material): self.name = material.name self.type = None self.properties = [] + self.sub_materials = [] + self.array_storage = {} self.render_mode = material.render_mode self.technique = material.technique @@ -225,6 +274,7 @@ class Material: 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 + self.instancing = material.instancing if self.render_mode=='EXTERNAL' and not self.technique: raise Exception("Invalid configuration on material {}: No technique for external rendering".format(self.name)) @@ -250,30 +300,45 @@ class Material: if from_node.type=='BSDF_PRINCIPLED': self.type = "pbr" - - base_color = self.create_property("base_color", (0.8, 0.8, 0.8, 1.0)) - metalness = self.create_property("metalness", 0.0) - roughness = self.create_property("roughness", 0.5) - 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, 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"]) + self.init_pbr_properties(material.node_tree, from_node) 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)) + splat_layers = get_splat_layers(material.node_tree, from_node) + if splat_layers: + for s in splat_layers: + if s[0].type!='BSDF_PRINCIPLED': + raise Exception("Unsupported splat layer type {} on splat material {}".format(s[0].type, self.name)) + + from .texture import Texture + + self.type = "splat" + self.sub_materials = [] + for l in splat_layers: + self.init_pbr_properties(material.node_tree, l[0]) + sub = SubMaterial() + sub.properties = self.properties + sub.weight_source = l[1:] + self.sub_materials.append(sub) + self.properties = [] + + for p in sub.properties: + if p.texture: + texture = Texture(p.texture, p.tex_channels) + storage = (texture.pixelformat, texture.width, texture.height) + existing = self.array_storage.setdefault(p.tex_keyword, storage) + if storage!=existing: + raise Exception("Inconsistent storage for {} on splat material {}".format(p.tex_keyword, self.name)) + else: + 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)) - self.type = "unlit" + self.type = "unlit" - color = self.create_property("color", "texture", (1.0, 1.0, 1.0, 1.0)) + 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' + 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(from_node.type, self.name)) @@ -296,3 +361,19 @@ class Material: prop = MaterialProperty(*args) self.properties.append(prop) return prop + + def init_pbr_properties(self, node_tree, from_node): + base_color = self.create_property("base_color", (0.8, 0.8, 0.8, 1.0)) + tint = self.create_property("tint", (1.0, 1.0, 1.0, 1.0)) + metalness = self.create_property("metalness", 0.0) + roughness = self.create_property("roughness", 0.5) + normal = self.create_property("normal_map") + emission = self.create_property("emission", (0.0, 0.0, 0.0)) + + base_color.set_from_input(node_tree, from_node.inputs["Base Color"], from_node.inputs["Alpha"]) + if base_color.tint: + tint.value = base_color.tint + metalness.set_from_input(node_tree, from_node.inputs["Metallic"]) + roughness.set_from_input(node_tree, from_node.inputs["Roughness"]) + normal.set_from_input(node_tree, from_node.inputs["Normal"]) + emission.set_from_input(node_tree, from_node.inputs["Emission"])