nanako 023f8099f0 Refactor shader widget system and add new post-processing effects ...

- Removed the existing procedural_shader_widget.h file and re-added it with minor adjustments.
- Introduced new blur_widget.h for Gaussian blur effects with customizable parameters.
- Added chromatic_aberration_widget.h to implement chromatic aberration effects.
- Created color_adjust_widget.h for color adjustments including brightness, contrast, saturation, and gamma.
- Implemented color_tint_widget.h for tint mapping effects with various blending modes.
- Added noise_widget.h for film grain noise effects, supporting static and animated modes.
- Introduced vignette_widget.h for vignette effects with adjustable radius, softness, and tint color.
- Created effects.h to consolidate all new effect widgets for easier inclusion.

2025-12-25 03:43:38 +08:00

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