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Work on Intro, Fixed Issues with FreezingChamber, Fixed Collisions, UpdateVRE, Cleanup

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This commit is contained in:
Simeon "Waldo" Wallrath 2026-01-23 17:21:16 +01:00
parent e944b0aeab
commit ff482f8bbe
116 changed files with 363 additions and 213 deletions
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2
VIRTUOS_ExpansionPluginTests/Plugins/VRExpansionPlugin/Source/VRExpansionEditor/VRExpansionEditor.Build.cs
View file

@ -30,7 +30,7 @@ namespace UnrealBuildTool.Rules
"Engine",
"Core",
"CoreUObject",
"VRExpansionPlugin"
"VRExpansionPlugin",
}
);

154
VIRTUOS_ExpansionPluginTests/Plugins/VRExpansionPlugin/Source/VRExpansionPlugin/Private/Misc/OptionalRepSkeletalMeshActor.cpp
View file

@ -384,6 +384,11 @@ void UInversePhysicsSkeletalMeshComponent::PerformBlendPhysicsBonesVR(const TArr
return;
}
if (InOutBoneSpaceTransforms.Num() == 0)
{
return;
}
// Get the scene, and do nothing if we can't get one.
FPhysScene* PhysScene = nullptr;
if (GetWorld() != nullptr)
@ -417,23 +422,50 @@ void UInversePhysicsSkeletalMeshComponent::PerformBlendPhysicsBonesVR(const TArr
FTransform TM;
};
// This will update both InOutComponentSpaceTransforms and InOutBoneSpaceTransforms for every
// required bone, leaving any others unchanged.
FPhysicsCommand::ExecuteRead(this, [&]()
{
bool bSetParentScale = false;
const bool bSimulatedRootBody = Bodies.IsValidIndex(RootBodyData.BodyIndex) && Bodies[RootBodyData.BodyIndex]->IsInstanceSimulatingPhysics();
const FTransform NewComponentToWorld = bSimulatedRootBody ? GetComponentTransformFromBodyInstance(Bodies[RootBodyData.BodyIndex]) : FTransform::Identity;
// Note that IsInstanceSimulatingPhysics returns false for kinematic bodies, so
// bSimulatedRootBody means "is the root physics body dynamic" (not the same as the root bone)
const bool bSimulatedRootBody = Bodies.IsValidIndex(RootBodyData.BodyIndex) &&
Bodies[RootBodyData.BodyIndex]->IsInstanceSimulatingPhysics();
// For each bone - see if we need to provide some data for it.
// Get the anticipated component transform - noting that if PhysicsTransformUpdateMode is
// set to SimulationUpatesComponentTransform then this will come from the simulation.
const FTransform NewComponentTransform = GetComponentTransformFromBodyInstance(Bodies[RootBodyData.BodyIndex]);
// Get component scale. If we have a body on the root bone, this will be the scale applied
// to its relative physics position.
FVector TotalScale3D = GetComponentTransform().GetScale3D();
FVector RecipScale3D = TotalScale3D.Reciprocal();
// For bodies that are not at the root bone, we will also need to apply the inverse of
// the root bone scale to the body positions reported by physics. We will update the
// scale below when we have processed the body on the root bone (if there is one)
const FVector RootBoneScale = InOutBoneSpaceTransforms[0].GetScale3D();
const bool bUnitScaledRootBone = RootBoneScale.Equals(FVector(1, 1, 1), UE_SMALL_NUMBER);
bool bHaveSetParentScale = bUnitScaledRootBone; // We don't need to change the scale if root has no scale
// For each bone:
// * Update the WorldBoneTMs entry
// * Update InOutBoneSpaceTransforms, using the physics blend weights
// * Update InOutComponentSpaceTransforms using transforms calculated from the bone space transforms
//
// This prevents intermediate physics blend weights from "breaking" joints (e.g. if the
// weight was just applied in world space).
for (int32 i = 0; i < InRequiredBones.Num(); i++)
{
// Gets set to true if we have a valid body and the skeletal mesh option has been set to
// be driven by kinematic body parts.
bool bDriveMeshWhenKinematic = false;
int32 BoneIndex = InRequiredBones[i];
// See if this is a physics bone..
int32 BodyIndex = PhysicsAsset->FindBodyIndex(GetSkeletalMeshAsset()->GetRefSkeleton().GetBoneName(BoneIndex));
// need to update back to physics so that physics knows where it was after blending
FBodyInstance* PhysicsAssetBodyInstance = nullptr;
// See if this is a physics bone - i.e. if there is a body registered to/associated with it.
// If so - get its world space matrix and its parents world space matrix and calc relative atom.
int32 BodyIndex = PhysicsAsset->FindBodyIndex(GetSkeletalMeshAsset()->GetRefSkeleton().GetBoneName(BoneIndex));
if (BodyIndex != INDEX_NONE)
{
#if !(UE_BUILD_SHIPPING || UE_BUILD_TEST)
@ -447,10 +479,27 @@ void UInversePhysicsSkeletalMeshComponent::PerformBlendPhysicsBonesVR(const TArr
continue;
}
#endif
PhysicsAssetBodyInstance = Bodies[BodyIndex];
FBodyInstance* PhysicsAssetBodyInstance = Bodies[BodyIndex];
//if simulated body copy back and blend with animation
if (PhysicsAssetBodyInstance->IsInstanceSimulatingPhysics())
// If this body is welded to something, it will not have an updated transform so we will use the
// bone transform. This means that if the mesh continues to play an animation, the pose will not
// match the pose when the weld happened. Ideally we would restore the relative transform at the
// time of the weld, but we do not explicitly store that data (though it could perhaps be
// recovered from the collision geometry hierarchy, it's easy to just not animate.)
if (PhysicsAssetBodyInstance->WeldParent != nullptr)
{
BodyIndex = INDEX_NONE;
}
bDriveMeshWhenKinematic =
bUpdateMeshWhenKinematic &&
PhysicsAssetBodyInstance->IsValidBodyInstance();
// Only process this bone if it is simulated, or required due to the bDriveMeshWhenKinematic flag
// Also, if the root bone is scaled, we need to update WorldBoneTMs, even for Kinematics that are
// not blended into the output because they may be a parent body of a dynamic body
const bool bIsSimulatingPhysics = PhysicsAssetBodyInstance->IsInstanceSimulatingPhysics();
if (bIsSimulatingPhysics || bDriveMeshWhenKinematic || !bUnitScaledRootBone)
{
FTransform PhysTM = PhysicsAssetBodyInstance->GetUnrealWorldTransform_AssumesLocked();
@ -458,25 +507,60 @@ void UInversePhysicsSkeletalMeshComponent::PerformBlendPhysicsBonesVR(const TArr
WorldBoneTMs[BoneIndex].TM = PhysTM;
WorldBoneTMs[BoneIndex].bUpToDate = true;
float UsePhysWeight = (bBlendPhysics) ? 1.f : PhysicsAssetBodyInstance->PhysicsBlendWeight;
// if the body instance is disabled, then we want to use the animation transform and ignore the physics one
if (PhysicsAssetBodyInstance->IsPhysicsDisabled())
{
UsePhysWeight = 0.0f;
continue;
}
// Find this bones parent matrix.
FTransform ParentWorldTM;
// NOTE: if the root bone is scaled we need to update the WorldBoneTMs above for both
// kinematic and dynamic bodies so that the parent pose calculation below is correct.
// For kinematics that are not blended into the output pose, we are done here
if (!bIsSimulatingPhysics && !bDriveMeshWhenKinematic)
{
continue;
}
// if we wan't 'full weight' we just find
if (UsePhysWeight > 0.f)
// Bodies that are not on the root bone must have the position reported by physics
// inverse scaled by the root bone scale.
if ((BoneIndex > 0) && !bHaveSetParentScale)
{
TotalScale3D *= RootBoneScale;
RecipScale3D = TotalScale3D.Reciprocal();
bHaveSetParentScale = true;
}
// Note that bBlendPhysics is a flag that is used to force use of the physics
// body, irrespective of whether they are simulated or not, or the value of the
// physics blend weight.
//
// Note that the existence of kinematic body parts towards/at the root can be a
// problem when they have a blend weight of zero in the asset, which is the
// default. This will result in InOutBoneSpaceTransforms not including the
// transform offset that goes to the real-world physics locations of body parts,
// so rag-dolls (etc) will get translated with the movement component. If this
// happens and is not the desired behavior, the solution to this is for the
// owner to explicitly set the physics blend weight of kinematic parts to one.
float PhysicsBlendWeight = bBlendPhysics ? 1.f : PhysicsAssetBodyInstance->PhysicsBlendWeight;
// If the body instance is disabled, then we want to use the animation transform
// and ignore the physics one
if (PhysicsAssetBodyInstance->IsPhysicsDisabled())
{
PhysicsBlendWeight = 0.0f;
}
// Only do the calculations here if there is a PhysicsBlendWeight, since in the
// end we will use this weight to blend from the input/animation value to the
// physical one.
if (PhysicsBlendWeight > 0.f)
{
if (!(ensure(InOutBoneSpaceTransforms.Num())))
{
continue;
}
// Find the transform of the parent of this bone.
FTransform ParentWorldTM;
if (BoneIndex == 0)
{
ParentWorldTM = LocalToWorldTM;
@ -489,25 +573,17 @@ void UInversePhysicsSkeletalMeshComponent::PerformBlendPhysicsBonesVR(const TArr
ParentWorldTM = WorldBoneTMs[ParentIndex].TM;
}
// Then calc rel TM and convert to atom.
// Calculate the relative transform of the current and parent (physical) bones.
FTransform RelTM = PhysTM.GetRelativeTransform(ParentWorldTM);
RelTM.RemoveScaling();
RelTM.RemoveScaling(); // NOTE: this also normalizes the rotation
FQuat RelRot(RelTM.GetRotation());
FVector RelPos = RecipScale3D * RelTM.GetLocation();
FTransform PhysAtom = FTransform(RelRot, RelPos, InOutBoneSpaceTransforms[BoneIndex].GetScale3D());
FTransform PhysicalBoneSpaceTransform = FTransform(
RelRot, RelPos, InOutBoneSpaceTransforms[BoneIndex].GetScale3D());
// Now blend in this atom. See if we are forcing this bone to always be blended in
InOutBoneSpaceTransforms[BoneIndex].Blend(InOutBoneSpaceTransforms[BoneIndex], PhysAtom, UsePhysWeight);
if (!bSetParentScale)
{
//We must update RecipScale3D based on the atom scale of the root
TotalScale3D *= InOutBoneSpaceTransforms[0].GetScale3D();
RecipScale3D = TotalScale3D.Reciprocal();
bSetParentScale = true;
}
InOutBoneSpaceTransforms[BoneIndex].Blend(
InOutBoneSpaceTransforms[BoneIndex], PhysicalBoneSpaceTransform, PhysicsBlendWeight);
}
}
}
@ -517,7 +593,8 @@ void UInversePhysicsSkeletalMeshComponent::PerformBlendPhysicsBonesVR(const TArr
continue;
}
// Update SpaceBases entry for this bone now
// Update InOutComponentSpaceTransforms entry for this bone now - it will be the parent
// component-space transform, offset with the current bone-space transform.
if (BoneIndex == 0)
{
if (!(ensure(InOutBoneSpaceTransforms.Num())))
@ -528,7 +605,7 @@ void UInversePhysicsSkeletalMeshComponent::PerformBlendPhysicsBonesVR(const TArr
}
else
{
if (bLocalSpaceKinematics || BodyIndex == INDEX_NONE || Bodies[BodyIndex]->IsInstanceSimulatingPhysics())
if (bDriveMeshWhenKinematic || bLocalSpaceKinematics || BodyIndex == INDEX_NONE || Bodies[BodyIndex]->IsInstanceSimulatingPhysics())
{
if (!(ensure(BoneIndex < InOutBoneSpaceTransforms.Num())))
{
@ -541,14 +618,15 @@ void UInversePhysicsSkeletalMeshComponent::PerformBlendPhysicsBonesVR(const TArr
* Normalize rotations.
* We want to remove any loss of precision due to accumulation of error.
* i.e. A componentSpace transform is the accumulation of all of its local space parents. The further down the chain, the greater the error.
* SpaceBases are used by external systems, we feed this to Physics, send this to gameplay through bone and socket queries, etc.
* SpaceBases are used by external systems, we feed this to PhysX, send this to gameplay through bone and socket queries, etc.
* So this is a good place to make sure all transforms are normalized.
*/
InOutComponentSpaceTransforms[BoneIndex].NormalizeRotation();
}
else if (bSimulatedRootBody)
{
InOutComponentSpaceTransforms[BoneIndex] = Bodies[BodyIndex]->GetUnrealWorldTransform_AssumesLocked().GetRelativeTransform(NewComponentToWorld);
InOutComponentSpaceTransforms[BoneIndex] =
Bodies[BodyIndex]->GetUnrealWorldTransform_AssumesLocked().GetRelativeTransform(NewComponentTransform);
}
}
}

4
VIRTUOS_ExpansionPluginTests/Plugins/VRExpansionPlugin/Source/VRExpansionPlugin/Private/Misc/VRFullScreenUserWidget.cpp
View file

@ -683,8 +683,8 @@ float FVRFullScreenUserWidget_PostProcess::GetDPIScaleForPostProcessHitTester(TW
FSceneViewport* Viewport = nullptr;
if (ensure(World.IsValid()) && World->IsGameWorld())
{
UGameViewportClient* ViewportClient = World->GetGameViewport();
Viewport = ensure(ViewportClient) ? ViewportClient->GetGameViewport() : nullptr;
UGameViewportClient* ViewportClient = World->GetGameViewport();
Viewport = ViewportClient ? ViewportClient->GetGameViewport() : nullptr;
}
#if WITH_EDITOR

4
VIRTUOS_ExpansionPluginTests/Plugins/VRExpansionPlugin/Source/VRExpansionPlugin/VRExpansionPlugin.Build.cs
View file

@ -69,7 +69,7 @@ public class VRExpansionPlugin : ModuleRules
"AnimGraphRuntime",
"XRBase",
"GameplayTags",
"Mover",
"Mover"
});
//if(Target.bUseChaos)
@ -92,7 +92,7 @@ public class VRExpansionPlugin : ModuleRules
"ApplicationCore",
"RenderCore",
// "ShaderCore",
"NetworkReplayStreaming",
"NetworkReplayStreaming"
//"Renderer",
// "UtilityShaders"
});