BlueGit
| 1 | //! In-process normalized drawable/animated FBX scene. |
| 2 | //! |
| 3 | //! Loads FBX through vendored ufbx once with unit/axis/winding normalization, |
| 4 | //! builds a `PreviewCharacter` that samples like the glTF path, and retains |
| 5 | //! conversion provenance. Live Glow viewport and production four-map batch |
| 6 | //! still use glTF/GLB; this module is the CPU/API surface for that later wire-up. |
| 7 | |
| 8 | use std::io::Cursor; |
| 9 | use std::path::Path; |
| 10 | use std::sync::Arc; |
| 11 | |
| 12 | use crate::equipment::Texture; |
| 13 | use crate::import::FBX_BACKEND; |
| 14 | use crate::preview::{ |
| 15 | AnimChannel, BodySurface, ChannelProperty, Mat4, PreviewCharacter, PreviewClip, SceneNode, |
| 16 | MAX_JOINTS, |
| 17 | }; |
| 18 | |
| 19 | const MAX_BYTES: u64 = 32 * 1024 * 1024; |
| 20 | const MAX_VERTICES: usize = 1_000_000; |
| 21 | const MAX_INDICES: usize = 3_000_000; |
| 22 | const TARGET_UNIT_METERS: f64 = 1.0; |
| 23 | |
| 24 | /// Metadata describing the one-shot conversion applied while loading. |
| 25 | #[derive(Debug, Clone, PartialEq)] |
| 26 | pub struct ConversionProvenance { |
| 27 | pub source_path: String, |
| 28 | pub backend: String, |
| 29 | pub target_axes: String, |
| 30 | pub target_unit_meters: f64, |
| 31 | pub source_unit_meters: f64, |
| 32 | pub space_conversion: String, |
| 33 | pub geometry_transform_handling: String, |
| 34 | pub mirror_axis: String, |
| 35 | pub winding_reversed: bool, |
| 36 | pub geometry_scale: f64, |
| 37 | pub notices: Vec<String>, |
| 38 | } |
| 39 | |
| 40 | /// Material as reported by ufbx after normalization. |
| 41 | #[derive(Debug, Clone, PartialEq)] |
| 42 | pub struct FbxMaterial { |
| 43 | pub name: String, |
| 44 | pub base_color: [f32; 4], |
| 45 | pub base_color_texture: Option<String>, |
| 46 | pub normal_texture: Option<String>, |
| 47 | } |
| 48 | |
| 49 | /// Texture bytes that ufbx reported (file path relative label or embedded). |
| 50 | #[derive(Debug, Clone, PartialEq)] |
| 51 | pub struct FbxTextureRef { |
| 52 | pub name: String, |
| 53 | pub source: String, |
| 54 | pub width: u32, |
| 55 | pub height: u32, |
| 56 | pub embedded: bool, |
| 57 | } |
| 58 | |
| 59 | /// Normalized drawable FBX scene ready for the shared sampling API. |
| 60 | #[derive(Debug, Clone)] |
| 61 | pub struct FbxDrawableScene { |
| 62 | pub character: PreviewCharacter, |
| 63 | pub provenance: ConversionProvenance, |
| 64 | pub materials: Vec<FbxMaterial>, |
| 65 | pub textures: Vec<FbxTextureRef>, |
| 66 | } |
| 67 | |
| 68 | /// Load an FBX file into a normalized drawable/animated scene. |
| 69 | pub fn load_fbx_drawable(path: &Path) -> Result<FbxDrawableScene, String> { |
| 70 | let path_str = path |
| 71 | .to_str() |
| 72 | .ok_or_else(|| "het FBX-pad is geen UTF-8".to_string())?; |
| 73 | let meta = std::fs::metadata(path).map_err(|err| format!("FBX openen mislukt: {err}"))?; |
| 74 | if !meta.is_file() { |
| 75 | return Err(format!("FBX-bestand ontbreekt: {}", path.display())); |
| 76 | } |
| 77 | if meta.len() > MAX_BYTES { |
| 78 | return Err(format!( |
| 79 | "FBX-bestand is groter dan {MAX_BYTES} bytes ({})", |
| 80 | meta.len() |
| 81 | )); |
| 82 | } |
| 83 | |
| 84 | let opts = ufbx::LoadOpts { |
| 85 | target_axes: ufbx::axes_right_handed_y_up(), |
| 86 | target_unit_meters: TARGET_UNIT_METERS, |
| 87 | space_conversion: ufbx::SpaceConversion::ModifyGeometry, |
| 88 | geometry_transform_handling: ufbx::GeometryTransformHandling::ModifyGeometry, |
| 89 | generate_missing_normals: true, |
| 90 | clean_skin_weights: true, |
| 91 | normalize_normals: true, |
| 92 | load_external_files: true, |
| 93 | ignore_missing_external_files: false, |
| 94 | ..Default::default() |
| 95 | }; |
| 96 | let scene = ufbx::load_file(path_str, opts).map_err(|err| { |
| 97 | format!( |
| 98 | "FBX laden mislukt ({}): {}", |
| 99 | path.display(), |
| 100 | err.description |
| 101 | ) |
| 102 | })?; |
| 103 | |
| 104 | let mut notices = Vec::new(); |
| 105 | notices.push(format!( |
| 106 | "FBX genormaliseerd met {FBX_BACKEND}; assen right-handed Y-up, eenheden meters." |
| 107 | )); |
| 108 | notices.push( |
| 109 | "Drawable/animated scene is beschikbaar voor sampling; live viewport en productie gebruiken nog glTF/GLB." |
| 110 | .into(), |
| 111 | ); |
| 112 | |
| 113 | if scene.metadata.geometry_ignored { |
| 114 | return Err("FBX heeft geometrie genegeerd; bestand is niet tekenbaar".into()); |
| 115 | } |
| 116 | if scene.metadata.animation_ignored { |
| 117 | notices.push("animatiegegevens waren gemarkeerd als genegeerd door de loader".into()); |
| 118 | } |
| 119 | |
| 120 | let (mesh_node_index, mesh) = find_skinned_mesh(&scene)?; |
| 121 | let _ = mesh_node_index; |
| 122 | let skin = mesh |
| 123 | .skin_deformers |
| 124 | .first() |
| 125 | .ok_or_else(|| "skinned mesh heeft geen skin deformer".to_string())?; |
| 126 | |
| 127 | match skin.skinning_method { |
| 128 | ufbx::SkinningMethod::Linear | ufbx::SkinningMethod::Rigid => {} |
| 129 | other => { |
| 130 | return Err(format!( |
| 131 | "niet-ondersteunde FBX-skinningmethode {:?}; alleen linear/rigid", |
| 132 | other |
| 133 | )); |
| 134 | } |
| 135 | } |
| 136 | if skin.clusters.is_empty() { |
| 137 | return Err("FBX-skin heeft geen clusters".into()); |
| 138 | } |
| 139 | if skin.clusters.len() > MAX_JOINTS { |
| 140 | return Err(format!( |
| 141 | "FBX-skeleton heeft {} joints; limiet is {MAX_JOINTS}", |
| 142 | skin.clusters.len() |
| 143 | )); |
| 144 | } |
| 145 | if !mesh.blend_deformers.is_empty() { |
| 146 | notices.push(format!( |
| 147 | "{} blend deformers genegeerd (morph targets niet ondersteund)", |
| 148 | mesh.blend_deformers.len() |
| 149 | )); |
| 150 | } |
| 151 | |
| 152 | let nodes = build_nodes(&scene)?; |
| 153 | let (joint_nodes, joint_names, inverse_binds) = build_skin(skin)?; |
| 154 | |
| 155 | let (materials, textures, surfaces_base) = collect_materials(path, &scene, mesh, &mut notices)?; |
| 156 | |
| 157 | let ( |
| 158 | positions, |
| 159 | normals, |
| 160 | source_normals_complete, |
| 161 | joints, |
| 162 | weights, |
| 163 | indices, |
| 164 | colors, |
| 165 | uvs, |
| 166 | surfaces, |
| 167 | ) = extract_mesh(mesh, skin, &surfaces_base)?; |
| 168 | |
| 169 | if positions.len() > MAX_VERTICES || indices.len() > MAX_INDICES { |
| 170 | return Err(format!( |
| 171 | "FBX-mesh te groot ({} vertices, {} indices)", |
| 172 | positions.len(), |
| 173 | indices.len() |
| 174 | )); |
| 175 | } |
| 176 | if positions.iter().any(|p| p.iter().any(|v| !v.is_finite())) |
| 177 | || normals.iter().any(|n| n.iter().any(|v| !v.is_finite())) |
| 178 | { |
| 179 | return Err("FBX-mesh bevat niet-eindige posities of normalen".into()); |
| 180 | } |
| 181 | |
| 182 | let clips = build_clips(&scene, &nodes)?; |
| 183 | if clips.is_empty() { |
| 184 | notices.push("geen animatiestacks met transformkanalen gevonden".into()); |
| 185 | } |
| 186 | |
| 187 | let winding_reversed = mesh.reversed_winding; |
| 188 | let provenance = ConversionProvenance { |
| 189 | source_path: path.display().to_string(), |
| 190 | backend: FBX_BACKEND.to_string(), |
| 191 | target_axes: "right-handed Y-up".into(), |
| 192 | target_unit_meters: TARGET_UNIT_METERS, |
| 193 | source_unit_meters: scene.settings.original_unit_meters as f64, |
| 194 | space_conversion: format!("{:?}", scene.metadata.space_conversion), |
| 195 | geometry_transform_handling: format!("{:?}", scene.metadata.geometry_transform_handling), |
| 196 | mirror_axis: format!("{:?}", scene.metadata.mirror_axis), |
| 197 | winding_reversed, |
| 198 | geometry_scale: scene.metadata.geometry_scale as f64, |
| 199 | notices: notices.clone(), |
| 200 | }; |
| 201 | |
| 202 | let base_color = surfaces |
| 203 | .first() |
| 204 | .map(|s| s.color) |
| 205 | .unwrap_or([0.7, 0.7, 0.75, 1.0]); |
| 206 | |
| 207 | Ok(FbxDrawableScene { |
| 208 | character: PreviewCharacter { |
| 209 | nodes, |
| 210 | joint_nodes, |
| 211 | joint_names, |
| 212 | inverse_binds, |
| 213 | positions, |
| 214 | normals, |
| 215 | source_normals_complete, |
| 216 | joints, |
| 217 | weights, |
| 218 | indices, |
| 219 | base_color, |
| 220 | colors, |
| 221 | uvs, |
| 222 | surfaces, |
| 223 | clips, |
| 224 | }, |
| 225 | provenance, |
| 226 | materials, |
| 227 | textures, |
| 228 | }) |
| 229 | } |
| 230 | |
| 231 | fn find_skinned_mesh(scene: &ufbx::Scene) -> Result<(usize, &ufbx::Mesh), String> { |
| 232 | for node in &scene.nodes { |
| 233 | if let Some(mesh) = node.mesh.as_ref() { |
| 234 | if mesh.num_vertices == 0 || mesh.num_triangles == 0 { |
| 235 | continue; |
| 236 | } |
| 237 | if mesh.skin_deformers.is_empty() { |
| 238 | continue; |
| 239 | } |
| 240 | return Ok((node.element.typed_id as usize, mesh)); |
| 241 | } |
| 242 | } |
| 243 | Err("FBX bevat geen skinned mesh met driehoeken".into()) |
| 244 | } |
| 245 | |
| 246 | fn build_nodes(scene: &ufbx::Scene) -> Result<Vec<SceneNode>, String> { |
| 247 | let mut nodes = Vec::with_capacity(scene.nodes.len()); |
| 248 | for node in &scene.nodes { |
| 249 | let parent = if node.is_root { |
| 250 | None |
| 251 | } else { |
| 252 | node.parent |
| 253 | .as_ref() |
| 254 | .map(|parent| parent.element.typed_id as usize) |
| 255 | }; |
| 256 | if node.has_geometry_transform && node.is_geometry_transform_helper { |
| 257 | return Err(format!( |
| 258 | "node '{}' is een geometry-transform helper die niet is weggenomen; dit dialect wordt niet stil geaccepteerd", |
| 259 | node.element.name.trim() |
| 260 | )); |
| 261 | } |
| 262 | let t = node.local_transform; |
| 263 | let translation = [ |
| 264 | t.translation.x as f32, |
| 265 | t.translation.y as f32, |
| 266 | t.translation.z as f32, |
| 267 | ]; |
| 268 | let rotation = [ |
| 269 | t.rotation.x as f32, |
| 270 | t.rotation.y as f32, |
| 271 | t.rotation.z as f32, |
| 272 | t.rotation.w as f32, |
| 273 | ]; |
| 274 | let scale = [t.scale.x as f32, t.scale.y as f32, t.scale.z as f32]; |
| 275 | if !translation |
| 276 | .iter() |
| 277 | .chain(rotation.iter()) |
| 278 | .chain(scale.iter()) |
| 279 | .all(|v| v.is_finite()) |
| 280 | { |
| 281 | return Err(format!( |
| 282 | "node '{}' heeft niet-eindige lokale transform", |
| 283 | node.element.name.trim() |
| 284 | )); |
| 285 | } |
| 286 | nodes.push(SceneNode { |
| 287 | name: node.element.name.trim().to_string(), |
| 288 | parent, |
| 289 | translation, |
| 290 | rotation, |
| 291 | scale, |
| 292 | }); |
| 293 | } |
| 294 | for (index, node) in scene.nodes.iter().enumerate() { |
| 295 | if node.element.typed_id as usize != index { |
| 296 | return Err(format!( |
| 297 | "ufbx typed_id {} komt niet overeen met node-index {index}", |
| 298 | node.element.typed_id |
| 299 | )); |
| 300 | } |
| 301 | } |
| 302 | Ok(nodes) |
| 303 | } |
| 304 | |
| 305 | type SkinBuild = (Vec<usize>, Vec<String>, Vec<Mat4>); |
| 306 | type MaterialBuild = (Vec<FbxMaterial>, Vec<FbxTextureRef>, Vec<SurfaceSeed>); |
| 307 | type MeshBuild = ( |
| 308 | Vec<[f32; 3]>, |
| 309 | Vec<[f32; 3]>, |
| 310 | bool, |
| 311 | Vec<[u16; 4]>, |
| 312 | Vec<[f32; 4]>, |
| 313 | Vec<u32>, |
| 314 | Vec<[f32; 4]>, |
| 315 | Vec<[f32; 2]>, |
| 316 | Vec<BodySurface>, |
| 317 | ); |
| 318 | |
| 319 | fn build_skin(skin: &ufbx::SkinDeformer) -> Result<SkinBuild, String> { |
| 320 | let mut joint_nodes = Vec::with_capacity(skin.clusters.len()); |
| 321 | let mut joint_names = Vec::with_capacity(skin.clusters.len()); |
| 322 | let mut inverse_binds = Vec::with_capacity(skin.clusters.len()); |
| 323 | for cluster in &skin.clusters { |
| 324 | let bone = cluster |
| 325 | .bone_node |
| 326 | .as_ref() |
| 327 | .ok_or_else(|| "skin cluster zonder bone_node".to_string())?; |
| 328 | let name = bone.element.name.trim(); |
| 329 | if name.is_empty() { |
| 330 | return Err("skin cluster bone heeft geen naam".into()); |
| 331 | } |
| 332 | joint_nodes.push(bone.element.typed_id as usize); |
| 333 | joint_names.push(name.to_string()); |
| 334 | let ib = matrix_to_mat4(&cluster.geometry_to_bone); |
| 335 | if !ib.iter().all(|v| v.is_finite()) { |
| 336 | return Err(format!("inverse-bind van '{name}' is niet eindig")); |
| 337 | } |
| 338 | inverse_binds.push(ib); |
| 339 | } |
| 340 | Ok((joint_nodes, joint_names, inverse_binds)) |
| 341 | } |
| 342 | |
| 343 | fn matrix_to_mat4(m: &ufbx::Matrix) -> Mat4 { |
| 344 | [ |
| 345 | m.m00 as f32, |
| 346 | m.m10 as f32, |
| 347 | m.m20 as f32, |
| 348 | 0.0, |
| 349 | m.m01 as f32, |
| 350 | m.m11 as f32, |
| 351 | m.m21 as f32, |
| 352 | 0.0, |
| 353 | m.m02 as f32, |
| 354 | m.m12 as f32, |
| 355 | m.m22 as f32, |
| 356 | 0.0, |
| 357 | m.m03 as f32, |
| 358 | m.m13 as f32, |
| 359 | m.m23 as f32, |
| 360 | 1.0, |
| 361 | ] |
| 362 | } |
| 363 | |
| 364 | struct SurfaceSeed { |
| 365 | color: [f32; 4], |
| 366 | albedo: Option<Arc<Texture>>, |
| 367 | cutoff: f32, |
| 368 | } |
| 369 | |
| 370 | fn collect_materials( |
| 371 | path: &Path, |
| 372 | scene: &ufbx::Scene, |
| 373 | mesh: &ufbx::Mesh, |
| 374 | notices: &mut Vec<String>, |
| 375 | ) -> Result<MaterialBuild, String> { |
| 376 | let mut materials = Vec::new(); |
| 377 | let mut textures = Vec::new(); |
| 378 | let mut seeds = Vec::new(); |
| 379 | |
| 380 | let material_list: Vec<&ufbx::Material> = if mesh.materials.is_empty() { |
| 381 | (&scene.materials).into_iter().collect() |
| 382 | } else { |
| 383 | (&mesh.materials).into_iter().collect() |
| 384 | }; |
| 385 | |
| 386 | if material_list.is_empty() { |
| 387 | seeds.push(SurfaceSeed { |
| 388 | color: [0.7, 0.7, 0.75, 1.0], |
| 389 | albedo: None, |
| 390 | cutoff: 0.001, |
| 391 | }); |
| 392 | return Ok((materials, textures, seeds)); |
| 393 | } |
| 394 | |
| 395 | for material in material_list { |
| 396 | let color_map = if material.pbr.base_color.has_value { |
| 397 | &material.pbr.base_color |
| 398 | } else { |
| 399 | &material.fbx.diffuse_color |
| 400 | }; |
| 401 | let base_color = [ |
| 402 | color_map.value_vec4.x as f32, |
| 403 | color_map.value_vec4.y as f32, |
| 404 | color_map.value_vec4.z as f32, |
| 405 | if color_map.value_vec4.w == 0.0 { |
| 406 | 1.0 |
| 407 | } else { |
| 408 | color_map.value_vec4.w as f32 |
| 409 | }, |
| 410 | ]; |
| 411 | if !base_color.iter().all(|c| c.is_finite()) { |
| 412 | return Err(format!( |
| 413 | "materiaal '{}' heeft niet-eindige basiskleur", |
| 414 | material.element.name.trim() |
| 415 | )); |
| 416 | } |
| 417 | |
| 418 | let (base_tex_name, base_albedo) = |
| 419 | resolve_texture(path, color_map.texture.as_ref(), &mut textures, notices)?; |
| 420 | let (normal_tex_name, _) = resolve_texture( |
| 421 | path, |
| 422 | material |
| 423 | .fbx |
| 424 | .normal_map |
| 425 | .texture |
| 426 | .as_ref() |
| 427 | .or(material.pbr.normal_map.texture.as_ref()), |
| 428 | &mut textures, |
| 429 | notices, |
| 430 | )?; |
| 431 | |
| 432 | materials.push(FbxMaterial { |
| 433 | name: { |
| 434 | let name = material.element.name.trim(); |
| 435 | if name.is_empty() { |
| 436 | "materiaal".into() |
| 437 | } else { |
| 438 | name.to_string() |
| 439 | } |
| 440 | }, |
| 441 | base_color, |
| 442 | base_color_texture: base_tex_name.clone(), |
| 443 | normal_texture: normal_tex_name, |
| 444 | }); |
| 445 | seeds.push(SurfaceSeed { |
| 446 | color: base_color, |
| 447 | albedo: base_albedo, |
| 448 | cutoff: 0.001, |
| 449 | }); |
| 450 | } |
| 451 | Ok((materials, textures, seeds)) |
| 452 | } |
| 453 | |
| 454 | fn resolve_texture( |
| 455 | fbx_path: &Path, |
| 456 | texture: Option<&ufbx::Ref<ufbx::Texture>>, |
| 457 | textures: &mut Vec<FbxTextureRef>, |
| 458 | notices: &mut Vec<String>, |
| 459 | ) -> Result<(Option<String>, Option<Arc<Texture>>), String> { |
| 460 | let Some(texture) = texture else { |
| 461 | return Ok((None, None)); |
| 462 | }; |
| 463 | if texture.content.size > 0 { |
| 464 | let name = { |
| 465 | let n = texture.element.name.trim(); |
| 466 | if n.is_empty() { |
| 467 | format!("ingebed:{}", textures.len()) |
| 468 | } else { |
| 469 | format!("ingebed:{n}") |
| 470 | } |
| 471 | }; |
| 472 | let decoded = decode_png_bytes(&texture.content) |
| 473 | .map_err(|err| format!("ingebedde texture '{name}' kon niet gelezen worden: {err}"))?; |
| 474 | if decoded.width > 2048 || decoded.height > 2048 { |
| 475 | return Err(format!("texture '{name}' is groter dan 2048×2048")); |
| 476 | } |
| 477 | let width = decoded.width; |
| 478 | let height = decoded.height; |
| 479 | let arc = Arc::new(decoded); |
| 480 | textures.push(FbxTextureRef { |
| 481 | name: name.clone(), |
| 482 | source: name.clone(), |
| 483 | width, |
| 484 | height, |
| 485 | embedded: true, |
| 486 | }); |
| 487 | return Ok((Some(name), Some(arc))); |
| 488 | } |
| 489 | |
| 490 | let relative = texture.relative_filename.trim().replace('\\', "/"); |
| 491 | let filename = if relative.is_empty() { |
| 492 | texture.filename.trim().replace('\\', "/") |
| 493 | } else { |
| 494 | relative |
| 495 | }; |
| 496 | if filename.is_empty() { |
| 497 | return Ok((None, None)); |
| 498 | } |
| 499 | reject_escape(&filename)?; |
| 500 | let base = fbx_path.parent().unwrap_or(fbx_path); |
| 501 | let full = base.join(&filename); |
| 502 | if full.is_file() { |
| 503 | let bytes = std::fs::read(&full) |
| 504 | .map_err(|err| format!("texture '{filename}' lezen mislukt: {err}"))?; |
| 505 | let decoded = decode_png_bytes(&bytes) |
| 506 | .map_err(|err| format!("texture '{filename}' is geen geldige 8-bit PNG: {err}"))?; |
| 507 | if decoded.width > 2048 || decoded.height > 2048 { |
| 508 | return Err(format!("texture '{filename}' is groter dan 2048×2048")); |
| 509 | } |
| 510 | let width = decoded.width; |
| 511 | let height = decoded.height; |
| 512 | let arc = Arc::new(decoded); |
| 513 | textures.push(FbxTextureRef { |
| 514 | name: filename.clone(), |
| 515 | source: filename.clone(), |
| 516 | width, |
| 517 | height, |
| 518 | embedded: false, |
| 519 | }); |
| 520 | Ok((Some(filename), Some(arc))) |
| 521 | } else if texture.has_file { |
| 522 | Err(format!("FBX-texture ontbreekt: {filename}")) |
| 523 | } else { |
| 524 | notices.push(format!( |
| 525 | "texture-referentie '{filename}' zonder bestand genegeerd" |
| 526 | )); |
| 527 | Ok((Some(filename), None)) |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | fn reject_escape(relative: &str) -> Result<(), String> { |
| 532 | if relative.starts_with('/') |
| 533 | || relative.starts_with('\\') |
| 534 | || Path::new(relative).components().any(|c| { |
| 535 | matches!( |
| 536 | c, |
| 537 | std::path::Component::ParentDir | std::path::Component::RootDir |
| 538 | ) |
| 539 | }) |
| 540 | { |
| 541 | return Err(format!("onveilig texturepad geweigerd: {relative}")); |
| 542 | } |
| 543 | Ok(()) |
| 544 | } |
| 545 | |
| 546 | fn decode_png_bytes(bytes: &[u8]) -> Result<Texture, String> { |
| 547 | let mut decoder = png::Decoder::new(Cursor::new(bytes)); |
| 548 | decoder.set_transformations(png::Transformations::EXPAND | png::Transformations::STRIP_16); |
| 549 | let mut reader = decoder.read_info().map_err(|e| e.to_string())?; |
| 550 | let info = reader.info(); |
| 551 | if info.width == 0 || info.height == 0 || info.width > 2048 || info.height > 2048 { |
| 552 | return Err("textureafmeting ongeldig of >2048".into()); |
| 553 | } |
| 554 | let size = reader |
| 555 | .output_buffer_size() |
| 556 | .ok_or_else(|| "texturebuffer te groot".to_string())?; |
| 557 | let mut buffer = vec![0u8; size]; |
| 558 | let frame = reader.next_frame(&mut buffer).map_err(|e| e.to_string())?; |
| 559 | let mut rgba = Vec::with_capacity((frame.width * frame.height * 4) as usize); |
| 560 | match frame.color_type { |
| 561 | png::ColorType::Grayscale => { |
| 562 | for &p in &buffer[..frame.buffer_size()] { |
| 563 | rgba.extend_from_slice(&[p, p, p, 255]); |
| 564 | } |
| 565 | } |
| 566 | png::ColorType::GrayscaleAlpha => { |
| 567 | for chunk in buffer[..frame.buffer_size()].chunks_exact(2) { |
| 568 | rgba.extend_from_slice(&[chunk[0], chunk[0], chunk[0], chunk[1]]); |
| 569 | } |
| 570 | } |
| 571 | png::ColorType::Rgb => { |
| 572 | for chunk in buffer[..frame.buffer_size()].chunks_exact(3) { |
| 573 | rgba.extend_from_slice(&[chunk[0], chunk[1], chunk[2], 255]); |
| 574 | } |
| 575 | } |
| 576 | png::ColorType::Rgba => rgba.extend_from_slice(&buffer[..frame.buffer_size()]), |
| 577 | other => return Err(format!("niet-ondersteund PNG-kleurtype {other:?}")), |
| 578 | } |
| 579 | use std::hash::{Hash, Hasher}; |
| 580 | let mut hasher = std::collections::hash_map::DefaultHasher::new(); |
| 581 | rgba.hash(&mut hasher); |
| 582 | Ok(Texture { |
| 583 | content_hash: hasher.finish(), |
| 584 | width: frame.width, |
| 585 | height: frame.height, |
| 586 | rgba, |
| 587 | }) |
| 588 | } |
| 589 | |
| 590 | fn extract_mesh( |
| 591 | mesh: &ufbx::Mesh, |
| 592 | skin: &ufbx::SkinDeformer, |
| 593 | seeds: &[SurfaceSeed], |
| 594 | ) -> Result<MeshBuild, String> { |
| 595 | let source_normals_complete = mesh.vertex_normal.exists && !mesh.generated_normals; |
| 596 | let mut positions = Vec::new(); |
| 597 | let mut normals = Vec::new(); |
| 598 | let mut joints = Vec::new(); |
| 599 | let mut weights = Vec::new(); |
| 600 | let mut indices = Vec::new(); |
| 601 | let mut colors = Vec::new(); |
| 602 | let mut uvs = Vec::new(); |
| 603 | let mut surfaces = Vec::new(); |
| 604 | |
| 605 | let part_count = mesh.material_parts.len().max(1); |
| 606 | for part_index in 0..part_count { |
| 607 | let face_indices: Vec<u32> = if mesh.material_parts.is_empty() { |
| 608 | (0..mesh.faces.len() as u32).collect() |
| 609 | } else { |
| 610 | mesh.material_parts[part_index] |
| 611 | .face_indices |
| 612 | .iter() |
| 613 | .copied() |
| 614 | .collect() |
| 615 | }; |
| 616 | if face_indices.is_empty() { |
| 617 | continue; |
| 618 | } |
| 619 | let seed = seeds |
| 620 | .get(part_index.min(seeds.len().saturating_sub(1))) |
| 621 | .ok_or_else(|| "materiaalpart zonder seed".to_string())?; |
| 622 | let first = indices.len(); |
| 623 | let mut tri_buf = Vec::new(); |
| 624 | for face_index in face_indices { |
| 625 | let face = mesh.faces[face_index as usize]; |
| 626 | if face.num_indices < 3 { |
| 627 | continue; |
| 628 | } |
| 629 | let tri_count = ufbx::triangulate_face_vec(&mut tri_buf, mesh, face); |
| 630 | for t in 0..tri_count as usize { |
| 631 | let corner_indices = [tri_buf[t * 3], tri_buf[t * 3 + 1], tri_buf[t * 3 + 2]]; |
| 632 | for &corner in &corner_indices { |
| 633 | let corner = corner as usize; |
| 634 | let pos = &mesh.vertex_position[corner]; |
| 635 | let position = [pos.x as f32, pos.y as f32, pos.z as f32]; |
| 636 | let normal = if mesh.vertex_normal.exists { |
| 637 | let n = &mesh.vertex_normal[corner]; |
| 638 | [n.x as f32, n.y as f32, n.z as f32] |
| 639 | } else { |
| 640 | [0.0, 1.0, 0.0] |
| 641 | }; |
| 642 | let uv = if mesh.vertex_uv.exists { |
| 643 | let u = &mesh.vertex_uv[corner]; |
| 644 | [u.x as f32, u.y as f32] |
| 645 | } else { |
| 646 | [0.0, 0.0] |
| 647 | }; |
| 648 | let color = if mesh.vertex_color.exists { |
| 649 | let c = &mesh.vertex_color[corner]; |
| 650 | [c.x as f32, c.y as f32, c.z as f32, c.w as f32] |
| 651 | } else { |
| 652 | [1.0, 1.0, 1.0, 1.0] |
| 653 | }; |
| 654 | let vertex_ix = mesh.vertex_indices[corner] as usize; |
| 655 | let (j, w) = skin_influences(skin, vertex_ix)?; |
| 656 | let out_index = positions.len() as u32; |
| 657 | positions.push(position); |
| 658 | normals.push(normal); |
| 659 | uvs.push(uv); |
| 660 | colors.push(color); |
| 661 | joints.push(j); |
| 662 | weights.push(w); |
| 663 | indices.push(out_index); |
| 664 | } |
| 665 | } |
| 666 | } |
| 667 | let count = indices.len() - first; |
| 668 | if count > 0 { |
| 669 | surfaces.push(BodySurface { |
| 670 | first, |
| 671 | count, |
| 672 | color: seed.color, |
| 673 | albedo: seed.albedo.clone(), |
| 674 | cutoff: seed.cutoff, |
| 675 | flat_normals: !mesh.vertex_normal.exists, |
| 676 | }); |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | if positions.is_empty() || indices.len() < 3 { |
| 681 | return Err("FBX-mesh heeft geen tekenbare driehoeken na triangulatie".into()); |
| 682 | } |
| 683 | Ok(( |
| 684 | positions, |
| 685 | normals, |
| 686 | source_normals_complete, |
| 687 | joints, |
| 688 | weights, |
| 689 | indices, |
| 690 | colors, |
| 691 | uvs, |
| 692 | surfaces, |
| 693 | )) |
| 694 | } |
| 695 | |
| 696 | fn skin_influences( |
| 697 | skin: &ufbx::SkinDeformer, |
| 698 | vertex: usize, |
| 699 | ) -> Result<([u16; 4], [f32; 4]), String> { |
| 700 | if vertex >= skin.vertices.len() { |
| 701 | return Err(format!("skin vertex-index {vertex} buiten bereik")); |
| 702 | } |
| 703 | let sv = &skin.vertices[vertex]; |
| 704 | let mut pairs: Vec<(u16, f32)> = Vec::new(); |
| 705 | for i in 0..sv.num_weights as usize { |
| 706 | let w = &skin.weights[sv.weight_begin as usize + i]; |
| 707 | if w.cluster_index as usize >= skin.clusters.len() { |
| 708 | return Err(format!( |
| 709 | "skin weight verwijst naar onbekende cluster {}", |
| 710 | w.cluster_index |
| 711 | )); |
| 712 | } |
| 713 | let weight = w.weight as f32; |
| 714 | if !weight.is_finite() || weight < 0.0 { |
| 715 | return Err("skin weight is niet eindig of negatief".into()); |
| 716 | } |
| 717 | if weight > 0.0 { |
| 718 | pairs.push((w.cluster_index as u16, weight)); |
| 719 | } |
| 720 | } |
| 721 | pairs.sort_by(|a, b| b.1.partial_cmp(&a.1).unwrap_or(std::cmp::Ordering::Equal)); |
| 722 | pairs.truncate(4); |
| 723 | if pairs.is_empty() { |
| 724 | pairs.push((0, 1.0)); |
| 725 | } |
| 726 | let sum: f32 = pairs.iter().map(|(_, w)| *w).sum(); |
| 727 | if sum <= 1e-8 { |
| 728 | return Err("skin weights sommeren tot nul".into()); |
| 729 | } |
| 730 | let mut joints = [0u16; 4]; |
| 731 | let mut weights = [0.0f32; 4]; |
| 732 | for (i, (j, w)) in pairs.into_iter().enumerate() { |
| 733 | joints[i] = j; |
| 734 | weights[i] = w / sum; |
| 735 | } |
| 736 | Ok((joints, weights)) |
| 737 | } |
| 738 | |
| 739 | fn build_clips(scene: &ufbx::Scene, nodes: &[SceneNode]) -> Result<Vec<PreviewClip>, String> { |
| 740 | let mut clips = Vec::new(); |
| 741 | for stack in &scene.anim_stacks { |
| 742 | let bake = ufbx::bake_anim( |
| 743 | scene, |
| 744 | &stack.anim, |
| 745 | ufbx::BakeOpts { |
| 746 | resample_rate: 30.0, |
| 747 | minimum_sample_rate: 1.0, |
| 748 | maximum_sample_rate: 120.0, |
| 749 | trim_start_time: true, |
| 750 | key_reduction_enabled: true, |
| 751 | key_reduction_rotation: true, |
| 752 | key_reduction_threshold: 1e-4, |
| 753 | ..Default::default() |
| 754 | }, |
| 755 | ) |
| 756 | .map_err(|err| { |
| 757 | format!( |
| 758 | "animatiestack '{}' bakken mislukt: {}", |
| 759 | stack.element.name.trim(), |
| 760 | err.description |
| 761 | ) |
| 762 | })?; |
| 763 | |
| 764 | let mut channels = Vec::new(); |
| 765 | for baked in &bake.nodes { |
| 766 | let node = baked.typed_id as usize; |
| 767 | if node >= nodes.len() { |
| 768 | return Err(format!( |
| 769 | "gebakken node typed_id {node} buiten bereik ({} nodes)", |
| 770 | nodes.len() |
| 771 | )); |
| 772 | } |
| 773 | push_vec3_channel( |
| 774 | &mut channels, |
| 775 | node, |
| 776 | ChannelProperty::Translation, |
| 777 | &baked.translation_keys, |
| 778 | )?; |
| 779 | push_quat_channel(&mut channels, node, &baked.rotation_keys)?; |
| 780 | push_vec3_channel( |
| 781 | &mut channels, |
| 782 | node, |
| 783 | ChannelProperty::Scale, |
| 784 | &baked.scale_keys, |
| 785 | )?; |
| 786 | } |
| 787 | if channels.is_empty() { |
| 788 | continue; |
| 789 | } |
| 790 | let duration = if bake.playback_duration > 0.0 { |
| 791 | bake.playback_duration as f32 |
| 792 | } else { |
| 793 | (stack.time_end - stack.time_begin).max(0.0) as f32 |
| 794 | }; |
| 795 | let name = { |
| 796 | let raw = stack.element.name.trim(); |
| 797 | if raw.is_empty() { |
| 798 | "clip".to_string() |
| 799 | } else { |
| 800 | raw.to_string() |
| 801 | } |
| 802 | }; |
| 803 | clips.push(PreviewClip { |
| 804 | name, |
| 805 | duration, |
| 806 | channels, |
| 807 | }); |
| 808 | } |
| 809 | Ok(clips) |
| 810 | } |
| 811 | |
| 812 | fn push_vec3_channel( |
| 813 | channels: &mut Vec<AnimChannel>, |
| 814 | node: usize, |
| 815 | property: ChannelProperty, |
| 816 | keys: &[ufbx::BakedVec3], |
| 817 | ) -> Result<(), String> { |
| 818 | if keys.is_empty() { |
| 819 | return Ok(()); |
| 820 | } |
| 821 | let mut times = Vec::with_capacity(keys.len()); |
| 822 | let mut values = Vec::with_capacity(keys.len() * 3); |
| 823 | for key in keys { |
| 824 | let t = key.time as f32; |
| 825 | let v = [key.value.x as f32, key.value.y as f32, key.value.z as f32]; |
| 826 | if !t.is_finite() || !v.iter().all(|n| n.is_finite()) { |
| 827 | return Err("gebakken vec3-kanaal heeft niet-eindige waarden".into()); |
| 828 | } |
| 829 | times.push(t); |
| 830 | values.extend_from_slice(&v); |
| 831 | } |
| 832 | channels.push(AnimChannel { |
| 833 | node, |
| 834 | property, |
| 835 | times, |
| 836 | values, |
| 837 | }); |
| 838 | Ok(()) |
| 839 | } |
| 840 | |
| 841 | fn push_quat_channel( |
| 842 | channels: &mut Vec<AnimChannel>, |
| 843 | node: usize, |
| 844 | keys: &[ufbx::BakedQuat], |
| 845 | ) -> Result<(), String> { |
| 846 | if keys.is_empty() { |
| 847 | return Ok(()); |
| 848 | } |
| 849 | let mut times = Vec::with_capacity(keys.len()); |
| 850 | let mut values = Vec::with_capacity(keys.len() * 4); |
| 851 | for key in keys { |
| 852 | let t = key.time as f32; |
| 853 | let v = [ |
| 854 | key.value.x as f32, |
| 855 | key.value.y as f32, |
| 856 | key.value.z as f32, |
| 857 | key.value.w as f32, |
| 858 | ]; |
| 859 | if !t.is_finite() || !v.iter().all(|n| n.is_finite()) { |
| 860 | return Err("gebakken rotatiekanaal heeft niet-eindige waarden".into()); |
| 861 | } |
| 862 | times.push(t); |
| 863 | values.extend_from_slice(&v); |
| 864 | } |
| 865 | channels.push(AnimChannel { |
| 866 | node, |
| 867 | property: ChannelProperty::Rotation, |
| 868 | times, |
| 869 | values, |
| 870 | }); |
| 871 | Ok(()) |
| 872 | } |
| 873 | |
| 874 | #[cfg(test)] |
| 875 | mod tests { |
| 876 | use super::*; |
| 877 | use crate::preview::{ |
| 878 | animated_joint_world, joint_world_translation, load_gltf_file, rest_joint_world, |
| 879 | sample_skin_matrices, |
| 880 | }; |
| 881 | |
| 882 | fn fixture_fbx() -> std::path::PathBuf { |
| 883 | Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/bodies/test-body-male.fbx") |
| 884 | } |
| 885 | |
| 886 | fn fixture_glb() -> std::path::PathBuf { |
| 887 | Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/bodies/test-body-male.glb") |
| 888 | } |
| 889 | |
| 890 | fn translation_of(m: Mat4) -> [f32; 3] { |
| 891 | [m[12], m[13], m[14]] |
| 892 | } |
| 893 | |
| 894 | fn distance(a: [f32; 3], b: [f32; 3]) -> f32 { |
| 895 | let d = [a[0] - b[0], a[1] - b[1], a[2] - b[2]]; |
| 896 | (d[0] * d[0] + d[1] * d[1] + d[2] * d[2]).sqrt() |
| 897 | } |
| 898 | |
| 899 | fn bone_length(character: &PreviewCharacter, joint: usize, node: usize) -> f32 { |
| 900 | let Some(parent_node) = character.nodes[node].parent else { |
| 901 | return 0.0; |
| 902 | }; |
| 903 | let Some(parent_joint) = character.joint_nodes.iter().position(|&n| n == parent_node) |
| 904 | else { |
| 905 | return 0.0; |
| 906 | }; |
| 907 | let child = rest_joint_world(character, joint).unwrap(); |
| 908 | let parent = rest_joint_world(character, parent_joint).unwrap(); |
| 909 | distance(translation_of(child), translation_of(parent)) |
| 910 | } |
| 911 | |
| 912 | #[test] |
| 913 | fn fbx_drawable_loads_normalized_skinned_scene() { |
| 914 | let scene = load_fbx_drawable(&fixture_fbx()).expect("load fbx"); |
| 915 | assert_eq!(scene.provenance.target_axes, "right-handed Y-up"); |
| 916 | assert!((scene.provenance.target_unit_meters - 1.0).abs() < 1e-9); |
| 917 | assert!(scene.provenance.space_conversion.contains("ModifyGeometry")); |
| 918 | assert!(scene.provenance.notices.iter().any(|n| n.contains("ufbx"))); |
| 919 | assert_eq!(scene.character.joint_names.len(), 19); |
| 920 | assert!(scene.character.joint_names.iter().any(|n| n == "Hips")); |
| 921 | assert!(scene |
| 922 | .character |
| 923 | .joint_names |
| 924 | .iter() |
| 925 | .any(|n| n == "LeftLowerLeg")); |
| 926 | assert!(scene.character.positions.len() >= 19 * 8); |
| 927 | assert!(scene.character.indices.len() >= 3); |
| 928 | assert!(scene.character.clips.len() >= 2); |
| 929 | assert!(scene |
| 930 | .character |
| 931 | .clips |
| 932 | .iter() |
| 933 | .any(|c| c.name.to_lowercase().contains("walk"))); |
| 934 | assert!(scene |
| 935 | .character |
| 936 | .clips |
| 937 | .iter() |
| 938 | .any(|c| c.name.to_lowercase().contains("attack"))); |
| 939 | assert!(!scene.materials.is_empty()); |
| 940 | let matrices = sample_skin_matrices(&scene.character, "walk", 0.2); |
| 941 | assert_eq!(matrices.len(), 19); |
| 942 | assert!(matrices.iter().flatten().all(|v| v.is_finite())); |
| 943 | } |
| 944 | |
| 945 | #[test] |
| 946 | fn fbx_bind_pose_matches_glb_fixture() { |
| 947 | let fbx = load_fbx_drawable(&fixture_fbx()).unwrap(); |
| 948 | let glb = load_gltf_file(&fixture_glb()).unwrap(); |
| 949 | assert_eq!(fbx.character.joint_names.len(), glb.joint_names.len()); |
| 950 | for name in &glb.joint_names { |
| 951 | assert!( |
| 952 | fbx.character.joint_names.iter().any(|n| n == name), |
| 953 | "FBX mist joint {name}" |
| 954 | ); |
| 955 | } |
| 956 | |
| 957 | // Hips rest translation matches (shared rig origin); Blender bone-axis |
| 958 | // rotations make intermediate rest XYZ diverge while animation matches. |
| 959 | let f_hips = fbx |
| 960 | .character |
| 961 | .joint_names |
| 962 | .iter() |
| 963 | .position(|n| n == "Hips") |
| 964 | .unwrap(); |
| 965 | let g_hips = glb.joint_names.iter().position(|n| n == "Hips").unwrap(); |
| 966 | let f_rest = rest_joint_world(&fbx.character, f_hips).unwrap(); |
| 967 | let g_rest = rest_joint_world(&glb, g_hips).unwrap(); |
| 968 | assert!( |
| 969 | distance(translation_of(f_rest), translation_of(g_rest)) < 0.02, |
| 970 | "Hips bind {:?} vs {:?}", |
| 971 | translation_of(f_rest), |
| 972 | translation_of(g_rest) |
| 973 | ); |
| 974 | |
| 975 | for name in &glb.joint_names { |
| 976 | let fi = fbx |
| 977 | .character |
| 978 | .joint_names |
| 979 | .iter() |
| 980 | .position(|n| n == name) |
| 981 | .unwrap(); |
| 982 | let gi = glb.joint_names.iter().position(|n| n == name).unwrap(); |
| 983 | let f_len = bone_length(&fbx.character, fi, fbx.character.joint_nodes[fi]); |
| 984 | let g_len = bone_length(&glb, gi, glb.joint_nodes[gi]); |
| 985 | if f_len > 1e-4 && g_len > 1e-4 { |
| 986 | assert!( |
| 987 | (f_len - g_len).abs() < 0.02, |
| 988 | "bone length {name}: fbx={f_len} glb={g_len}" |
| 989 | ); |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | // Bind-equivalent pose is reached inside the walk clip (fixture mid sample). |
| 994 | let f_leg = joint_world_translation(&fbx.character, "walk", 0.25, "LeftLowerLeg").unwrap(); |
| 995 | let g_leg = joint_world_translation(&glb, "walk", 0.25, "LeftLowerLeg").unwrap(); |
| 996 | assert!( |
| 997 | distance(f_leg, g_leg) < 0.02, |
| 998 | "bind-equivalent walk sample {f_leg:?} vs {g_leg:?}" |
| 999 | ); |
| 1000 | let g_bind = translation_of( |
| 1001 | rest_joint_world( |
| 1002 | &glb, |
| 1003 | glb.joint_names |
| 1004 | .iter() |
| 1005 | .position(|n| n == "LeftLowerLeg") |
| 1006 | .unwrap(), |
| 1007 | ) |
| 1008 | .unwrap(), |
| 1009 | ); |
| 1010 | assert!( |
| 1011 | distance(f_leg, g_bind) < 0.02, |
| 1012 | "walk 0.25 should match GLB bind for LeftLowerLeg: {f_leg:?} vs {g_bind:?}" |
| 1013 | ); |
| 1014 | } |
| 1015 | |
| 1016 | #[test] |
| 1017 | fn fbx_animation_samples_match_glb_fixture() { |
| 1018 | let fbx = load_fbx_drawable(&fixture_fbx()).unwrap(); |
| 1019 | let glb = load_gltf_file(&fixture_glb()).unwrap(); |
| 1020 | |
| 1021 | let leg_a = joint_world_translation(&fbx.character, "walk", 0.0, "LeftLowerLeg").unwrap(); |
| 1022 | let leg_b = joint_world_translation(&fbx.character, "walk", 0.25, "LeftLowerLeg").unwrap(); |
| 1023 | assert!( |
| 1024 | distance(leg_a, leg_b) > 0.05, |
| 1025 | "FBX walk must move LeftLowerLeg, delta {}", |
| 1026 | distance(leg_a, leg_b) |
| 1027 | ); |
| 1028 | |
| 1029 | let g_a = joint_world_translation(&glb, "walk", 0.0, "LeftLowerLeg").unwrap(); |
| 1030 | let g_b = joint_world_translation(&glb, "walk", 0.25, "LeftLowerLeg").unwrap(); |
| 1031 | assert!( |
| 1032 | distance(leg_a, g_a) < 0.05, |
| 1033 | "walk t=0 LeftLowerLeg fbx={leg_a:?} glb={g_a:?}" |
| 1034 | ); |
| 1035 | assert!( |
| 1036 | distance(leg_b, g_b) < 0.08, |
| 1037 | "walk t=0.25 LeftLowerLeg fbx={leg_b:?} glb={g_b:?}" |
| 1038 | ); |
| 1039 | |
| 1040 | let hand_a = joint_world_translation(&fbx.character, "attack", 0.0, "RightHand").unwrap(); |
| 1041 | let hand_b = joint_world_translation(&fbx.character, "attack", 0.35, "RightHand").unwrap(); |
| 1042 | assert!(distance(hand_a, hand_b) > 0.05); |
| 1043 | let gh_a = joint_world_translation(&glb, "attack", 0.0, "RightHand").unwrap(); |
| 1044 | let gh_b = joint_world_translation(&glb, "attack", 0.35, "RightHand").unwrap(); |
| 1045 | assert!(distance(hand_a, gh_a) < 0.05); |
| 1046 | assert!( |
| 1047 | distance(hand_b, gh_b) < 0.1, |
| 1048 | "attack t=0.35 RightHand fbx={hand_b:?} glb={gh_b:?}" |
| 1049 | ); |
| 1050 | |
| 1051 | // Skin matrices stay finite and joint count matches. |
| 1052 | let f_skin = sample_skin_matrices(&fbx.character, "walk", 0.5); |
| 1053 | let g_skin = sample_skin_matrices(&glb, "walk", 0.5); |
| 1054 | assert_eq!(f_skin.len(), g_skin.len()); |
| 1055 | for (name, f_m, g_m) in glb |
| 1056 | .joint_names |
| 1057 | .iter() |
| 1058 | .zip(f_skin.iter()) |
| 1059 | .zip(g_skin.iter()) |
| 1060 | .map(|((n, f), g)| (n, f, g)) |
| 1061 | { |
| 1062 | let fi = fbx |
| 1063 | .character |
| 1064 | .joint_names |
| 1065 | .iter() |
| 1066 | .position(|n| n == name) |
| 1067 | .unwrap(); |
| 1068 | let _ = fi; |
| 1069 | let d = distance(translation_of(*f_m), translation_of(*g_m)); |
| 1070 | assert!(d < 0.15, "skin matrix translation {name} delta {d}"); |
| 1071 | } |
| 1072 | |
| 1073 | let fi = fbx |
| 1074 | .character |
| 1075 | .joint_names |
| 1076 | .iter() |
| 1077 | .position(|n| n == "Hips") |
| 1078 | .unwrap(); |
| 1079 | assert!(animated_joint_world(&fbx.character, "walk", 0.1, fi).is_some()); |
| 1080 | } |
| 1081 | |
| 1082 | #[test] |
| 1083 | fn garbage_fbx_fails_explicitly() { |
| 1084 | let root = std::env::temp_dir().join(format!("paperdoll-fbx-scene-{}", std::process::id())); |
| 1085 | let _ = std::fs::remove_dir_all(&root); |
| 1086 | std::fs::create_dir_all(&root).unwrap(); |
| 1087 | let path = root.join("bogus.fbx"); |
| 1088 | std::fs::write(&path, b"not really fbx").unwrap(); |
| 1089 | let err = load_fbx_drawable(&path).unwrap_err(); |
| 1090 | assert!( |
| 1091 | err.contains("mislukt") || err.to_lowercase().contains("fbx"), |
| 1092 | "{err}" |
| 1093 | ); |
| 1094 | let _ = std::fs::remove_dir_all(&root); |
| 1095 | } |
| 1096 | } |
Files
fbx_scene.rs
Add normalized drawable/animated FBX scene via ufbx
timfa Grok Bot · pushed by timfa · 7 days ago