Unreal Engine Issues
Unreal Engine Issues
Material Instance Can't Update Material Parameters Defined in a Material Function Within a Material Layer
UE - Rendering Architecture - Materials - Nov 21, 2018When you edit the parameters of a material function that is within a material layer from the material instance, the material instance does not update. Found in 4.20 CL# 4369336, 4.21 CL# 4541578, a ...
Physics Linear Velocity functions from UPrimitiveComponent always return (0,0,0) velocity
UE - Simulation - Physics - Jul 30, 2024In Unreal Engine version 5.4, all Physics Linear Velocity functions inside PrimitiveComponent class are returning always a velocity of (0,0,0), even if the Body Instances are moving. This was workin ...
Assert When Saving Over Existing Level With Built Lighting
Tools - Apr 17, 2017While saving over an existing map the engine will crash if both maps have baked lighting. ...
Crash When Changing to Landscape Paint Tool With a Material Function for the World Position Offset of the Landscape Material
UE - Graphics Features - Feb 25, 2019Crash on switching to landscape/paint tab when using a landscape material that has a material function hooked onto the WorldPositionOffset. Working as expected in 4.21 CL# 4753647 Found in 4.22 CL ...
[Feature Request] Set Overridden Light Map Res
UE - Graphics Features - Jul 26, 2018Set Light Map resolution via Blueprint or Python ...
Lighting needs to be rebuilt in Advanced_Lighting map of starter content
Docs - Samples - Jan 11, 2017Lighting needs to be rebuilt in Advanced_Lighting starter content map ...
The SetEmitterEnable BP function needs implementation
UE - Niagara - Mar 2, 2020The BP function calls FNiagaraSystemInstance::SetEmitterEnable, which sets ExecutionState on the emitter instance to ENiagaraExecutionState::Inactive. FNiagaraSystemSimulation::PrepareForSystemSimul ...
Code function with delay enters a loop when called from BPs
UE - Gameplay - Blueprint - Oct 19, 2015If a code function is written with a delay that doesn't take any arguments, calling the function from blueprints causes the blueprint to get stuck in a loop and not continue to the next BP node. ...
Default value is not used for input pins in a function when using text if the parameter's pin has been connected to another node
UE - Gameplay - Blueprint - Mar 15, 2017Default value is not used for input pins in a function when using text if the parameter's pin has been connected to another node. The text field is cleared after the parameter's pin has been used. ...
Groom Assets do not cast shadows when the shadow casting light is close to the groom and virtual shadow maps are in use
UE - Graphics Features - Mar 19, 2024When a shadow casting light is closer to the groom than some proportional amount the groom is away from the shadow catcher, the groom's shadow will disappear. This only occurs using VSMs. Raytraced ...