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Description
Description：
We propose a refactor of the current Spine material system to enable custom shader capabilities, allowing developers to create more sophisticated visual effects through GPU shader programming.
Problem Statement:
The current material system:
- Lacks flexibility for custom rendering requirements
- Limits artistic expression with pre-defined material options
- Cannot support modern VFX techniques like dynamic distortions, advanced blending, or GPU-powered animations
Proposed Solution:
1. Material System Refactor
- Decouple material management from core rendering
- Create extendable material base classes
- Implement shader template inheritance system
2. Custom Shader Support：
- Allow injection of custom vertex/fragment shaders
- Support shader uniforms/parameters binding
- Enable material property overrides via shader code
3. Effect Development Interface：
- Expose shader hook points through Material API
- Add texture slot management for effect resources
- Implement runtime material switching capability
Expected Outcomes:
- Artists can create custom effects through shader programming
- Support for advanced rendering techniques:
- Dynamic gradient transitions
- Texture distortion effects
- Multi-pass rendering
- Backward compatibility with existing material configurations
- Performance optimization guidelines for shader authors
Implementation Plan:
Phase 1: Core system refactoring (2 weeks)
Phase 2: Shader interface implementation (3 weeks)
Phase 3: Testing & documentation (1 week)
Documentation:
Will provide:
- Shader authoring guide
- Material API reference
- Example effect implementations