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Hi all,

I'm having an issue with an effect that uses an animated mesh as emitter.

Unreal imports the effects but it is quite different from popcorn preview, I have some particles that moves randomly and I can see only one trail of two simulated(random particles can be one trail).

Popcorn project was set on Unreal since the beginning.

Unreal Output log says:

LogAnimationCompression: Building Anim DDC data for AnimSequence /Game/Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02_Anim.str_r8_anim_pt2_popcorn_lights_tk02_Anim
FBXImport: Warning: Could not find the bind pose.  It will use time 0 as bind pose.
LogPopcornFXEditorHelpers: Import succeeded: 'X:/PROJECT_X_VR/ROOT/POPCORNFX/Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02.fbx' as '/Game/Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02.str_r8_anim_pt2_popcorn_lights_tk02'
LogPopcornFXResourceHandlerMesh: Warning: UObject is not a UStaticMesh "/Game/Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02.str_r8_anim_pt2_popcorn_lights_tk02"
LogPopcornFX: Warning: [2][Geometrics_Shapes]> shape descriptor: failed loading mesh resource "Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02.str_r8_anim_pt2_popcorn_lights_tk02"
LogPopcornFX: Warning: [2][Geometrics_Shapes]> failed creating shape type=7
LogPopcornFX: Warning: [2][Particles]> Sampler AnimTrack "Path_1": Cannot load AnipClipPath "Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02.pkan/Resource"
LogPopcornFXResourceHandlerMesh: Warning: UObject is not a UStaticMesh "/Game/Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02.str_r8_anim_pt2_popcorn_lights_tk02"
LogPopcornFX: Warning: [2][Geometrics_Shapes]> shape descriptor: failed loading mesh resource "Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02.str_r8_anim_pt2_popcorn_lights_tk02"
LogPopcornFX: Warning: [2][Geometrics_Shapes]> failed creating shape type=7
LogPopcornFX: Warning: [2][Particles]> Sampler AnimTrack "Path_1": Cannot load AnipClipPath "Meshes/car/str_r8_anim_pt2_popcorn_lights_tk02.pkan/Resource"
LogPopcornFXEmitterComponent: Warning: Could not find a valid APopcornFXSceneActor with a SceneName 'PopcornFX_DefaultScene': /Temp/Untitled_1.Untitled_1:PersistentLevel.warp_v4_20.PopcornFXEmitterComponent_Default

Even if I have those warnings in content browser I can see and play the skeletal mesh correctly with correct animation.

What does it mean? What have I done wrong?

Thank you for your answers,

EDI
by rd (120 points)

1 Answer

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I see some "AnimTrack" but AnimTrack Codec is not implemented in UE4 (I updated to feature list: https://wiki.popcornfx.com/index.php/UE4/FeatureList#Particle_Simulation)

But Skinned Meshes should work in UE4 if you use Attribute Samplers Skinned Mesh: https://wiki.popcornfx.com/index.php/UE4/Class_PopcornFXAttributeSampler
by Jordan (14.6k points)
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