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reorder morph animations according to actual mesh morph targets

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This commit is contained in:
Nick Fisher
2023-10-18 16:04:14 +08:00
parent 50c47fe908
commit ed3555c237
5 changed files with 34 additions and 36 deletions
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21
lib/filament_controller_ffi.dart
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@@ -570,7 +570,7 @@ class FilamentControllerFFI extends FilamentController {
@override
Future setMorphAnimationData(
FilamentEntity asset, MorphAnimationData animation) async {
FilamentEntity entity, MorphAnimationData animation) async {
if (_viewer == null) {
throw Exception("No viewer available, ignoring");
}
@@ -580,14 +580,27 @@ class FilamentControllerFFI extends FilamentController {
dataPtr.elementAt(i).value = animation.data[i];
}
Pointer<Int> idxPtr = calloc<Int>(animation.animatedMorphIndices.length);
// the morph targets in [animation] might be a subset of those that actually exist in the mesh (and might not have the same order)
// we don't want to reorder the data (?? or do we? this is probably more efficient for the backend?)
// so let's get the actual list of morph targets from the mesh and pass the relevant indices to the native side.
var meshMorphTargets =
await getMorphTargetNames(entity, animation.meshName);
Pointer<Int> idxPtr = calloc<Int>(animation.morphTargets.length);
for (int i = 0; i < animation.numMorphTargets; i++) {
idxPtr.elementAt(i).value = animation.animatedMorphIndices[i];
var index = meshMorphTargets.indexOf(animation.morphTargets[i]);
if (index == -1) {
calloc.free(dataPtr);
calloc.free(idxPtr);
throw Exception(
"Morph target ${animation.morphTargets[i]} is specified in the animation but could not be found in the mesh ${animation.meshName} under entity ${entity}");
}
idxPtr.elementAt(i).value = index;
}
_lib.set_morph_animation(
_assetManager!,
asset,
entity,
animation.meshName.toNativeUtf8().cast<Char>(),
dataPtr,
idxPtr,