Particle FX system

allow parallel ticking of particle systems.

Allow emitters to be culled.

If > 0 Allow the graph to insert custom fastpath operations into the graph.

If true, allow the usage of GPU particles.

Allow particles to be sorted on the GPU.

If 1, particle async tasks are batched because they often take less time than it takes to wake up a task thread. No effect on editor.

When FX.BatchAsync = 1, controls the number of particle systems grouped together for threading.

Rate at which the FX budget adjusted usage value is allowed to decay. This helps prevent FX flipping off/on if the usage oscilates over the cull threshold as the FX are culled/enabled.

Max value for FX Budget adjusted usage. Prevents one very long frame from keeping the usage above 1.0 for long periods under budget.

When >= 0.0 overrides the reported time for FX on the GameThreadConcurrent. Useful for observing/debugging the impact on other systems.

When >= 0.0 overrides the reported time for FX on the GameThread. Useful for observing/debugging the impact on other systems.

When >= 0.0 overrides the reported time for FX on the RenderThread. Useful for observing/debugging the impact on other systems.

Controls whether we track global FX budgets.

Controls whether we track global FX budgets in editor builds.

Budget (in ms) for all combined FX work that runs only on the gamethread. As this budget is approached or exceeded, various FX systems will attempt to scale down more and mroe agressively to remain in budget.

Budget (in ms) for all combined FX work that runs on the gamethread or on a concurrent task spawned from the game thread. As this budget is approached or exceeded, various FX systems will attempt to scale down more and mroe agressively to remain in budget.

Number of frames the global FX budget tracking will hold to work out it\'s average frame time.

Budget (in ms) for all combined FX work that runs on the Render Thread. As this budget is approached or exceeded, various FX systems will attempt to scale down more and mroe agressively to remain in budget.

If > 0, all deactivations on Particle System Components is deferred until next tick.

If true, we write detailed partilce stats to the CSV profiler.

Dumps data relevant to generating the compile id for an asset.

If > 0 the key generation will be dumped to the log.

Dump Niagara System Pooling Info

Dumps state information for all Niagara Scalability Mangers.

If > 0 current frame particle data will be dumped after simulation.

If > 0 current frame particle parameter stores will be dumped when updated.

Dump Particle System Pooling Info

Dumps state information for all current Particle System Components.

Dumps the values of the rapid iteration parameters for the specified asset by path.

If > 0, results of system simulations will be dumped to the log.

If > 0 verbose logging is enabled for the vm compiler backend.

If 1, particle system components that can run async will be scheduled earlier in the frame

Controls logging for when circular links are discovered in anim trails. 0 = No logging. 1 = Minimal logging. 2 = Verbose logging.

If > 0 verbose change id information will be logged to help with debuggin merge issues.

If > 0 Niagara will push some state into the crash reporter. This is not free so should not be used unless actively tracking a crash in the wild. Even then it should only be enabled on the platforms needed etc.

If == 0, Niagara Mesh Renderers are disabled.

If == 0, Niagara Ribbon Renderers are disabled.

Toggle for runtime cylce counts tracking Niagara\'s frame time.

If == 0, Niagara Sprite Renderers are disabled.

If > 0 Verbose change id logging info will be printed.

If > 0 VM scripts will be executed, otherwise they won\'t, useful for looking at the bytecode for a crashing compiled script.

If > 0 emitters will be forced to compile on load.

If > 0, when merging in from parent emitters swap linked variables in the stack to be "Fail If Previously Not Set" for their default type.

If > 0 emitters will be forced to merge on load.

If > 0 all cached graph traversal data will be dumped

If > 0 emitters will go through the motions of a compile, but will never set valid bytecode.

If > 0 Niagara systems which are spawned attached will be force to spawn in solo mode for debugging.

If > 0 all translation generated HLSL will be dumped

If > 0 all translation will occur one at a time, useful for debugging.

If > 0 all translation generated binary text will be dumped

If > 0 attribute trimming will use a less aggressive algorithm for removing script attributes.

Freeze particles simulated on the GPU.

Freeze particle simulation.

If we allow particle meshes to use LODs or not

Limits the depth bounds when searching for a collision plane.

GPU Particle simulation texture X dimension (default=1024); set in project renderer settings, potentially overridden by device profile.

GPU Particle simulation texture Y dimension (default=1024); set in project renderer settings, potentially overridden by device profile.

Slack ratio when resizing GPU sort buffers. Must be bigger than 1 (default=2)

Number of consecutive frames where the GPU sort buffer is considered oversized before allowing shrinking. (default=100)

Minimum GPU sort buffer size, in particles (default=8192)