7 def export_to_file(self, ctx, out_fn, *, selected_only=False, visible_only=True, collection=True, skip_existing=True):
8 from .scene import create_scene_from_current
9 task = ctx.task("Preparing scene", 0.1)
10 scene = create_scene_from_current(task, selected_only=selected_only, visible_only=visible_only)
13 task = ctx.task("Exporting resources", 0.9)
14 self.export_scene_resources(task, scene, resources)
15 task = ctx.task(scene, 1.0)
16 scene_res = self.export_scene(scene, resources)
18 path, base = os.path.split(out_fn)
19 base, ext = os.path.splitext(base)
21 task = ctx.task("Writing files", 1.0)
25 existing = lambda r: not os.path.exists(os.path.join(path, r.name))
26 scene_res.write_collection(out_fn, filter=existing)
28 scene_res.write_to_file(out_fn)
29 for r in scene_res.collect_references():
30 r.write_to_file(os.path.join(path, r.name))
32 def export_scene_resources(self, ctx, scene, resources):
33 from .export import DataExporter
34 data_exporter = DataExporter()
36 data_exporter.export_resources(ctx, [p.object for p in scene.prototypes], resources)
38 def export_scene(self, scene, resources):
39 from .datafile import Resource, Statement, Token
40 scene_res = Resource(scene.name+".scene", "scene")
42 if scene.background_set or (scene.instances and scene.blended_instances):
43 scene_res.statements.append(Statement("type", Token("ordered")))
44 if scene.background_set:
45 scene_res.statements.append(scene_res.create_reference_statement("scene", resources[scene.background_set.name+".scene"]))
48 st = Statement("scene")
49 st.sub.append(Statement("type", Token("simple")))
50 self.add_instances(scene_res, st.sub, scene.instances, resources)
51 scene_res.statements.append(st)
53 if scene.blended_instances:
54 st = Statement("scene")
55 st.sub.append(Statement("type", Token("zsorted")))
56 self.add_instances(scene_res, st.sub, scene.blended_instances, resources)
57 scene_res.statements.append(st)
59 scene_type = "zsorted" if scene.blended_instances else "simple"
60 scene_res.statements.append(Statement("type", Token(scene_type)))
62 self.add_instances(scene_res, scene_res.statements, scene.instances, resources)
63 self.add_instances(scene_res, scene_res.statements, scene.blended_instances, resources)
67 def add_instances(self, scene_res, statements, instances, resources):
68 from .datafile import Statement
73 if i.prototype.use_array:
74 if i.prototype not in array_prototypes:
75 array_prototypes.append(i.prototype)
78 obj_res = resources[i.prototype.name+".object"]
79 st = scene_res.create_reference_statement("object", obj_res)
83 st.sub.append(self.create_transform_statement(i))
86 for p in array_prototypes:
87 obj_res = resources[p.name+".object"]
88 st = scene_res.create_reference_statement("array", obj_res)
91 ss = Statement("instance")
92 ss.sub.append(self.create_transform_statement(i))
97 def create_transform_statement(self, instance):
98 from .datafile import Statement
100 st = Statement("transform")
102 loc = instance.matrix_world.to_translation()
103 st.sub.append(Statement("position", *tuple(loc)))
105 quat = instance.matrix_world.to_quaternion()
106 if instance.rotation_mode in ('XYZ', 'XZY', 'YXZ', 'YZX', 'ZXY', 'ZYX'):
107 angles = [a*180/math.pi for a in quat.to_euler()]
108 st.sub.append(Statement("euler", *angles));
110 st.sub.append(Statement("rotation", quat.angle*180/math.pi, *tuple(quat.axis)))
112 scale = instance.matrix_world.to_scale()
113 st.sub.append(Statement("scale", *tuple(scale)))
117 def export_sequence_resources(self, scene, resources):
118 from .datafile import Resource, Statement, Token
126 from .util import make_unique
127 lights = make_unique(lights)
129 from .export_light import LightExporter
130 light_exporter = LightExporter()
132 light_name = l.name+".light"
133 if light_name not in resources:
134 resources[light_name] = light_exporter.export_light(l)
136 lighting_name = scene.name+".lightn"
137 if lighting_name not in resources:
138 lighting_res = Resource(lighting_name, "lighting")
139 lighting_res.statements.append(Statement("ambient", *tuple(scene.ambient_light)))
141 lighting_res.statements.append(lighting_res.create_reference_statement("light", resources[l.name+".light"]))
143 resources[lighting_name] = lighting_res
145 def export_sequence(self, scene, resources):
146 from .datafile import Resource, Statement, Token
147 seq_res = Resource(scene.name+".seq", "sequence")
150 seq_res.statements.append(Statement("hdr", True))
152 self.add_clear(seq_res.statements, (0.0, 0.0, 0.0, 0.0), 1.0)
154 scene_res = resources[scene.name+".scene"]
155 seq_res.statements.append(seq_res.create_reference_statement("renderable", "content", scene_res))
157 lighting_res = resources[scene.name+".lightn"]
169 if s.blended_instances:
175 shadowed_lights += [l.data for l in s.lights if l.data.use_shadow]
176 for i in itertools.chain(s.instances, s.blended_instances):
177 o = i.prototype.object
178 if o.material_slots and o.material_slots[0].material and o.material_slots[0].material.shadow_method!='NONE':
179 shadow_casters.append(i)
182 shadowed_lights.sort(key=lambda l:l.shadow_map_size, reverse=True)
188 main_tags.append("blended")
191 if use_ibl and scene.use_sky:
192 self.add_auxiliary_sequence(seq_res, "environment", "sky", ((0.0, 0.0, 0.0, 0.0), 1.0), main_tags, lighting_res)
194 st = Statement("effect", "environment")
195 st.sub.append(Statement("type", Token("environment_map")))
196 st.sub.append(Statement("size", 32))
197 st.sub.append(Statement("roughness_levels", 2))
198 st.sub.append(Statement("fixed_position", 0.0, 0.0, 0.0))
199 st.sub.append(Statement("content", content))
200 st.sub.append(Statement("environment", "environment_sequence"))
202 seq_res.statements.append(st)
203 content = "environment"
206 st = Statement("effect", "sky")
207 st.sub.append(Statement("type", Token("sky")))
208 st.sub.append(seq_res.create_reference_statement("sun", resources[scene.sun_light.name+".light"]))
209 st.sub.append(Statement("content", content))
211 seq_res.statements.append(st)
215 self.add_auxiliary_sequence(seq_res, "shadow", "content", (None, 1.0), ["shadow"], None)
216 self.add_auxiliary_sequence(seq_res, "thsm", "content", (None, 1.0), ["shadow_thsm"], None)
218 st = Statement("effect", "shadow_map")
219 st.sub.append(Statement("type", Token("shadow_map")))
220 st.sub.append(Statement("enable_for_method", "blended"))
221 st.sub.append(Statement("size", *self.compute_shadowmap_size(shadowed_lights)))
222 target, radius = self.compute_bounding_sphere(shadow_casters)
223 st.sub.append(Statement("target", *target))
224 st.sub.append(Statement("radius", radius))
225 st.sub.append(Statement("content", content))
226 st.sub.append(seq_res.create_reference_statement("lighting", lighting_res))
227 for l in shadowed_lights:
228 ss = seq_res.create_reference_statement("light", resources[l.name+".light"])
229 ss.sub.append(Statement("size", int(l.shadow_map_size)))
230 shadow_caster = "thsm_sequence" if l.type=='POINT' else "shadow_sequence"
231 ss.sub.append(Statement("shadow_caster", shadow_caster))
234 seq_res.statements.append(st)
235 content = "shadow_map"
237 self.add_content_steps(seq_res, content, lighting_res, main_tags)
240 ss = Statement("postprocessor")
241 ss.sub.append(Statement("type", Token("ambient_occlusion")))
242 ss.sub.append(Statement("occlusion_radius", scene.ao_distance))
243 ss.sub.append(Statement("samples", scene.ao_samples))
244 seq_res.statements.append(ss)
247 ss = Statement("postprocessor")
248 ss.sub.append(Statement("type", Token("bloom")))
249 seq_res.statements.append(ss)
251 ss = Statement("postprocessor")
252 ss.sub.append(Statement("type", Token("colorcurve")))
253 ss.sub.append(Statement("exposure_adjust", scene.exposure))
254 ss.sub.append(Statement("srgb"))
255 seq_res.statements.append(ss)
257 # Add a colorcurve with linear response to convert into sRGB color space
258 ss = Statement("postprocessor")
259 ss.sub.append(Statement("type", Token("colorcurve")))
260 ss.sub.append(Statement("brightness_response", 1.0))
261 ss.sub.append(Statement("srgb"))
262 seq_res.statements.append(ss)
266 def add_clear(self, statements, color, depth):
267 from .datafile import Statement
269 st = Statement("clear")
270 if color is not None:
271 st.sub.append(Statement("color", *color))
272 if depth is not None:
273 st.sub.append(Statement("depth", depth))
274 statements.append(st)
276 def add_content_steps(self, seq_res, renderable, lighting, tags):
277 from .datafile import Statement, Token
280 st = Statement("step", t, renderable)
281 st.sub.append(Statement("depth_test", Token("LEQUAL")))
283 st.sub.append(seq_res.create_reference_statement("lighting", lighting))
284 seq_res.statements.append(st)
286 def add_auxiliary_sequence(self, seq_res, aux_name, content, clear_values, step_tags, lighting):
287 seq_name = os.path.splitext(seq_res.name)[0]
289 from .datafile import Resource, Statement
290 aux_seq_res = Resource("{}_{}.seq".format(seq_name, aux_name), "sequence")
291 self.add_clear(aux_seq_res.statements, *clear_values)
292 aux_seq_res.statements.append(Statement("renderable", "content"))
293 self.add_content_steps(aux_seq_res, "content", lighting, step_tags)
295 st = seq_res.create_reference_statement("sequence", aux_name+"_sequence", aux_seq_res)
296 st.sub.append(Statement("renderable", "content", content))
297 seq_res.statements.append(st)
299 def compute_shadowmap_size(self, lights):
302 s = int(l.shadow_map_size)
306 while size*size<total_area:
308 if size*size>total_area*2:
309 return (size, size//2)
313 def compute_bounding_sphere(self, instances):
316 points += [i.matrix_world@mathutils.Vector(c) for c in i.prototype.object.bound_box]
318 from .util import compute_bounding_sphere
319 return compute_bounding_sphere(points)