Fast Volumetric Blob Shadows v1.4.0 is a shader designed for efficiently rendering blob shadow volumes. It allows easy addition of simple rectangular or circular shadows by simply dropping the material onto a cube or sphere mesh, placing it in the world, and adjusting color, sharpness, and intensity as needed. The shadow volume geometry can be moved, rotated, and scaled, and for dynamic objects, it can be positioned using a simple script or constraint. These shadows are useful even when full shadows are enabled, providing a small amount of additional occlusion. The material supports GPU instancing, but static and dynamic batching are not supported due to the need for transformation data in the shader. Unlike Unity’s standard projector, which re-renders all affected objects and can significantly increase draw calls—especially in complex scenes—the FVBS shader maintains consistent performance regardless of scene complexity. For the shader to function, a depth texture must be enabled on the camera, either via the URP pipeline asset or through an included script for the Builtin pipeline. If depth texture is not already enabled, additional draw calls will occur due to Unity rendering the depth pass, which may make this asset unsuitable if draw calls are the primary performance bottleneck. More information is available at: https://assetstore.unity.com/packages/vfx/shaders/fast-volumetric-blob-shadows-29928.
Fast Volumetric Blob Shadows v1.4.0