X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=blender%2Fio_mspgl%2Fmaterial.py;h=b1d2756ebf7eb264ebc5e0412a307401b6d019f7;hb=f1b2d23969f944cb4e914487885bcf44e5bd0380;hp=dc6d934bedfdcc5c5e968cbbdf2fd878844d7709;hpb=893c0645802c46eb60b04a87e79a5a4d69e32ea2;p=libs%2Fgl.git diff --git a/blender/io_mspgl/material.py b/blender/io_mspgl/material.py index dc6d934b..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 @@ -209,20 +251,30 @@ 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 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 + 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)) @@ -235,45 +287,60 @@ 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" + self.init_pbr_properties(material.node_tree, from_node) + elif from_node.type=='EMISSION' or from_node.type=='MIX_SHADER': + 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" - 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, 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') - if not color_input: - raise Exception("Unsupported configuration for unlit material {}".format(self.name)) - - self.type = "unlit" - - 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 = 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: @@ -295,69 +362,18 @@ class Material: self.properties.append(prop) return prop - -class MaterialAtlas: - def __init__(self, materials): - self.render_mode = materials[0].render_mode - if self.render_mode=='EXTERNAL': - raise Exception("Material atlas with external render mode does not make sense") - - if self.render_mode=='CUSTOM': - self.render_methods = materials[0].render_methods - else: - self.render_methods = None - if self.render_methods: - self.name = "material_atlas_"+os.path.splitext(self.render_methods[0].shader)[0] - else: - self.name = "material_atlas" - self.receive_shadows = materials[0].receive_shadows - self.cast_shadows = (materials[0].shadow_method!='NONE') - self.materials = materials - self.material_names = [m.name for m in self.materials] - self.uniforms = None - method_hash = compute_render_method_hash(self) - for m in self.materials: - if m.render_mode!=self.render_mode: - raise Exception("Conflicting render modes in MaterialAtlas constructor") - if self.render_mode=='CUSTOM' and compute_render_method_hash(m)!=method_hash: - raise Exception("Conflicting shaders in MaterialAtlas constructor") - if m.receive_shadows!=self.receive_shadows or m.shadow_method!=materials[0].shadow_method: - raise Exception("Conflicting shadow settings in MaterialAtlas constructor") - - count = len(self.materials) - size = 1 - while size*size*2=count: - self.size = (size, size) - else: - self.size = (size*2, size) - - from .util import get_colormap - - cm = get_colormap(True) - self.base_color_data = "" - for m in map(Material, self.materials): - if any(p.texture for p in m.properties): - raise Exception("Texturing is incompatible with material atlas") - base_color = [int(cm(c)*255) for c in m.base_color.value] - self.base_color_data += "\\x{:02X}\\x{:02X}\\x{:02X}\\xFF".format(*base_color) - self.base_color_data += "\\x00\\x00\\x00\\x00"*(self.size[0]*self.size[1]-count) - - def get_material_uv(self, material): - index = self.material_names.index(material.name) - x = index%self.size[0] - y = index//self.size[0] - return ((x+0.5)/self.size[0], (y+0.5)/self.size[1]) - -def create_material_atlas(context, material): - if not material.material_atlas: - raise Exception("Material is not part of a material atlas") - - method_hash = compute_render_method_hash(material) - materials = [] - for m in context.blend_data.materials: - if m.material_atlas and compute_render_method_hash(m)==method_hash: - materials.append(m) - - return MaterialAtlas(materials) + 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"])