phantom
b2c88e5471
- Updated the canvas composite shader to include a selection mask fill and animated marching ants border. - Added new uniforms for animation time, selection mask presence, and quick mask mode. - Modified the fragment shader to handle selection rendering, including color tinting for selected areas and a dash pattern for the marching ants effect. - Refactored the OverlayProgram to remove the old marching ants rendering logic, now handled by the GPU shader. - Introduced new data structures in the shader pipeline for managing selection mask textures and samplers. - Implemented functionality to upload selection mask data to the GPU. - Updated selection state handling to ensure correct bounds calculations. - Enhanced sidebar tool button rendering with fallback for missing icons.