NVN API version 5.5.15 is a specific iteration of Nintendo's proprietary low-level graphics API, developed in collaboration with specifically for the Nintendo Switch
SDK Release Note: "This build utilizes NVN API version 5515 exclusive features to optimize shader de-compilation on the latest firmware." nvn api version 5515 exclusive
Reduced Overhead: By stripping away the compatibility layers required by multi-platform APIs, NVN allows games to run smoother and with higher fidelity than their raw specs might suggest. NVN API version 5
Traditionally, Motion Blur on the Switch is handled via generic post-processing shaders that sample the velocity buffer. This method is computationally expensive (texture reads) and often prone to artifacts (ghosting) at lower resolutions. nvn api version 5515 exclusive