UE4 Dynamic Scene Shadows
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The Dynamic Scene Shadows Content Example map illustrates how to create dynamic shadowing effects with baked lighting through the use of Cascading Shadow Mapping which is a shadowing method specifically for use with Directional Light Actors. They are superior to baked shadows in that they allow for shadowing of dynamic objects, such as trees with leaves that sway in the wind creating a much more realistic scene.
How Cascading Shadow Maps Work
The Cascading Shadow Map method divides the view frustum into a series of distance-based shadow cascades, each of which with steadily lower resolution as you move farther from the camera. This means that shadows nearest the player's view have the highest resolution while those farthest away have the lowest. Beyond the range of the Dynamic Shadow Distance property, the system blends back into static baked shadows. In this way, you can take a scene with baked lighting and smoothly transition it to static baked shadows as you move away from objects.
Cascaded Shadow Map Properties
In the Details panel for a Directional Light Actor, you will find the Cascaded Shadow Map category. Within are the following properties.
The Dynamic Scene Shadows Content Example map illustrates how to create dynamic shadowing effects with baked lighting through the use of Cascading Shadow Mapping which is a shadowing method specifically for use with Directional Light Actors. They are superior to baked shadows in that they allow for shadowing of dynamic objects, such as trees with leaves that sway in the wind creating a much more realistic scene.
How Cascading Shadow Maps Work
The Cascading Shadow Map method divides the view frustum into a series of distance-based shadow cascades, each of which with steadily lower resolution as you move farther from the camera. This means that shadows nearest the player's view have the highest resolution while those farthest away have the lowest. Beyond the range of the Dynamic Shadow Distance property, the system blends back into static baked shadows. In this way, you can take a scene with baked lighting and smoothly transition it to static baked shadows as you move away from objects.
Cascaded Shadow Map Properties
In the Details panel for a Directional Light Actor, you will find the Cascaded Shadow Map category. Within are the following properties.
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