ohos-dev-graphics3d-combined-postprocess

To add tone mapping or color grading in Graphics3D, implement a single-pass fullscreen shader across LumeRender, Lume3D, and LumeScene while maintaining consistent shader and C++ index alignment.

Implement single-pass post-processing by configuring the combined fullscreen shader in LumeRender, integrating ECS components in Lume3D, and registering user-facing interfaces in LumeScene with correct indices and flag bits.

No, multi-pass effects like bloom or depth-of-field are explicitly avoided. This approach targets single-pass combined effects only, such as tone mapping, color grading, and vignette, to ensure safe pipeline integration.

Post-processing effects fail with over 4 parameters due to incorrect userFactors handling for GPU uniforms. You must pack factors and userFactors correctly to prevent shader and C++ index mismatches.

The workflow spans LumeRender configuration and shader wiring, Lume3D ECS component integration, and LumeScene user interface registration, requiring consistent specialization-bit alignment across all three modules.

Yes, you must maintain consistent shader and C++ index alignment along with specialization-bit alignment to integrate combined fullscreen post-processing effects safely across the Graphics3D render pipeline.