Release Notes — NVIDIA Flex 1.1.0 documentation

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1.1.0¶

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1.2.0¶

New API style, for consistency with other products the API has now an NvFlex prefix, and follows a naming convention similar to PhysX
New API to retrieve particle neighbor information, see NvFlexGetNeighbors()
New API to support shape collision filtering, collision channels can be assigned to particles and shapes to specify which pairs collide, see NvFlexPhase
New API to support per-shape plastic deformation, it is now possible to specify plastic creep and threshold coefficient on a per-shape basis (previous global settings), see NvFlexSetRigids()
New API to selectively disable solver features, this can lead to improved performance, see NvFlexFeatureMode, replaces global FlexParams::fluid option
New API to allow sub-range particle buffer updates, see NvFlexCopyDesc
New API for asynchronous compute, see NvFlexInitDesc
Fix for unnecessary synchronization when calling NvFlexMap() on a device buffer
Fix numerical precision for shape-matching constraints with large coordinates
Fix for uninitialized contact indices returned from NvFlexGetContacts() if NvFlexUpdateSolver() has not been called
Fix for SDF collision in D3D12
Fix for D3D warning when using NvFlexSetRigids()
Add D3D12 rendering support to the demo
Add support for device NvFlexBuffers on D3D

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1.1.0¶

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New API style, for consistency with other products the API has now an NvFlex prefix and follows a naming convention similar to PhysX
Add support for DirectX, in addition to CUDA there is now a cross platform DirectX 11 and 12 version of the Flex libraries that Windows applications can link against
Add support for max acceleration clamping, see NvFlexParams::mMaxAcceleration, can be useful to reduce popping with fast moving kinematic shapes and large interpenetration
Add support for max acceleration clamping, see NvFlexParams::maxAcceleration, can be useful to reduce popping with fast moving kinematic shapes and large interpenetration
Add support to querying compute device, see NvFlexGetDeviceName()
Add support for flushing compute queue, see NvFlexFlush()
Add support for multiple library instances, NvFlexInit() now returns a library which is bound to a single compute device
Fix for bug in BVH builder that could cause missed collisions
New optional NvFlexDevice library for handling GPU selection and initialization in CUDA
New buffer based API, all data must now be passed to Flex through FlexBuffers created through NvFlexAllocBuffer()
New stable shape matching code for more robust and efficient soft bodies, removes need for NvFlexParams::mInertiaBias
New stable shape matching code for more robust and efficient soft bodies, removes need for NvFlexParams::inertiaBias
New collision shape API supports instancing of convex meshes and a much simplified API, see NvFlexSetShapes()
Improvements to collision detection for moving shapes, Flex will now perform a CCD check also taking into account the shape trajectory using the prev/current transforms of each shape

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1.0.0¶

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1.0.0¶

Added support for reporting collision shape ids, and trigger volume shapes, see flexGetContacts()
Optimizations to host code performance
Move flexExt.h header to the /include folder

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0.9.5¶

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0.9.5¶

Fix for NaNs being generated during shape matching with plastic deformation enabled
Fix for bug that could lead to translational drifting of shape matched rigid bodies
Exposed parameter to control the lifetime of diffuse particles, see FlexParams::mDiffuseLifetime

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0.9.0¶

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0.9.0¶

Added support for soft bodies, particles can now belong to multiple shape-matching clusters used to drive linear blend skinning
Added support for particle rest positions that can be used to filter collisions between particles that touch in their rest pose, see flexSetRestPositions()
Rename FlexParams::mMaxVelocity -> FlexParams::mMaxSpeed

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0.8.0¶

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0.8.0¶

Upgrade to CUDA 7.0
Linux binaries are now compiled with -fPIC
Added option to control the max number of neighbors stored per-particle, this can reduce memory usage, see flexCreateSolver()

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0.2.5¶

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0.2.5¶

Fix for vertex normal calculation when using sparse active particle set
Fix for division by zero in rest density calculation when fluid rest distance was 0.0
Extended particle phase parameters to allow fine grained control over self-collision and fluid properties, see flexMakePhase()

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0.2.3¶

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0.2.3¶

Switched to bindless textures, 50% reduction in CPU usage, because of this change Flex now requires an SM3.0 or above GPU
Optimized convex grid rasterization by assigning 4 warps/shape, reduces time from 1ms->0.25ms for large shapes
Added debug capture functionality

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0.2.2¶

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0.2.2¶

Fix for infinite mass particles gaining velocity during collisions
Fix bug with planar triangle mesh rasterization
Clamp particle velocity to maximum user velocity before prediction step, improves behaviour when interacting with force fields

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0.2.1¶

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0.2.1¶

Add support for lower dimensional particle rigid bodies (rods, planes)
Allow specifying rigid rotations through the solver API
Add GUI to demo

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0.2.0¶

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0.2.0¶

Fix for rest density calculation when number of neighbors > than max
Add support for async memory copies back to pinned host memory
Switch to /MT for FlexExtensions library

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0.1.0¶

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0.1.0¶

Initial release

@@ -347,7 +366,7 @@ -- cgit v1.2.3

Release Notes¶

1.1.0¶

1.2.0¶

1.1.0¶

1.0.0¶

1.0.0¶

0.9.5¶

0.9.5¶

0.9.0¶

0.9.0¶

0.8.0¶

0.8.0¶

0.2.5¶

0.2.5¶

0.2.3¶

0.2.3¶

0.2.2¶

0.2.2¶

0.2.1¶

0.2.1¶

0.2.0¶

0.2.0¶

0.1.0¶

0.1.0¶