Spatial-Temporal Post-ProcessingA process that improves product visuals by applying filters and effects before the image appears on screen. You can use post-processing effects to simulate physical camera and film properties, for example Bloom and Depth of Field. More info post processing, postprocessing, postprocess
See in Glossary (STP) uses spatial and temporal upsampling techniques to produce a high quality, anti-aliased image.
STP is a software-based upscaler.
STP uses compute shadersA program that runs on the GPU. More info
See in Glossary, so target platforms must support Shader Model 5.0.
STP doesn’t support OpenGL ES, even if the platform supports compute shaders.
STP requires temporal anti-aliasing (TAA) pre-processing, it will implicitly enable it if not selected already.
STP configures itself automatically to provide the best balance of performance and quality based on the platform your application runs on. You don’t need to configure it for each different platform.
On high-performance platforms, like PCs and consoles, STP uses higher quality image filtering logic and additional deringing logic to improve image quality when it upscales images. These techniques require additional processing power and Unity uses them on high-performance devices where the performance impact is not significant.
On mobile devices, STP uses more performant image filtering logic to provide a balance between performance and image quality. This minimizes the performance impact of STP on less powerful devices, while still delivering a high quality image.