Unity-Technologies/PostProcessingArchived
PostProcessing
PostProcessing is a post-processing stack for the Unity game engine designed to apply image-space visual effects and color grading to rendered scenes. It functions as a real-time image effect pipeline that processes frames after the primary 3D geometry has been drawn.
The system includes a screen space visual effects library and an HDR color grading toolset used to adjust high dynamic range colors and contrast. These tools allow for the application of real-time image filtering to modify lighting, colors, and mood.
The framework supports 3D scene post-processing and game environment polishing by layering multiple full-screen shader passes. This includes the use of volume-based parameter interpolation to blend visual settings based on camera position within a scene.
Features
- Post-Processing Effects - Provides a comprehensive stack of image-space effects and full-screen filters applied after the primary scene render.
- Post-Processing Effects - Applies high-quality post-processing effects like bloom and color grading to 3D scenes.
- Unity Visual Effects - Enhances 3D scene atmosphere within the Unity engine using image effects applied to the final render.
- Color Grading - Provides an HDR toolset for adjusting colors and contrast to achieve cinematic looks.
- Screen-Space Effects - Provides a system for layering multiple screen-space shader passes to modify the final rendered image.
- Image Visual Effects - Adds a series of post-render image effects to scenes to modify the final visual output.
- Pixel Manipulators - Uses custom HLSL programs to manipulate individual pixels for effects like bloom and blur.
- Real-Time Image Filtering - Applies real-time visual filters and color transformations to running scenes using shaders.
- Post-Render Effect Pipelines - Implements a sequence of render passes that process frames after the main 3D geometry has been drawn.
- Visual Environment Polishing - Refines the final visual output of digital environments to achieve cinematic or stylized aesthetics.
- Ping-Pong Buffering - Utilizes ping-pong buffering to swap between textures, using the output of one effect as input for the next.
- Command Buffer Pipelines - Implements a CommandBuffer-based pipeline to execute image effects in a precise sequence.
- Effect Dispatch Management - Tracks active visual effects on the CPU to determine which GPU shaders to dispatch per frame.
- Spatial Parameter Blending - Blends visual settings based on the camera position relative to defined spatial volumes in the scene.
