GPU-accelerated rendering backend for Raxol terminals using Metal (macOS) and Vulkan.

This module provides high-performance GPU-accelerated terminal rendering with:

• Metal API integration for macOS (optimal performance on Apple Silicon)
• Vulkan API support for cross-platform GPU acceleration
• Compute shaders for text rendering and effects
• Hardware-accelerated glyph rasterization
• GPU-based scrolling and animation
• Memory-efficient texture atlases for fonts
• Parallel rendering pipelines
• Adaptive quality scaling based on performance

Features

Performance Optimizations

• GPU-based glyph rendering with subpixel precision
• Texture atlas caching for font glyphs
• Instanced rendering for repeated characters
• Compute shader-based text layout
• Hardware scrolling without CPU intervention
• Parallel processing of multiple terminal sessions

Visual Enhancements

• Hardware anti-aliasing (MSAA/FXAA)
• GPU-based text effects (shadows, outlines, glows)
• Real-time blur and transparency effects
• Smooth animations with GPU interpolation
• High-DPI rendering with pixel-perfect scaling
• Color space management and HDR support

Usage

# Initialize GPU acceleration
{:ok, context} = GPUAccelerator.init(backend: :metal)

# Create rendering surface
surface = GPUAccelerator.create_surface(context, width: 1920, height: 1080)

# Render terminal content
terminal_buffer = get_terminal_buffer()
GPUAccelerator.render(context, surface, terminal_buffer)

# Enable effects
GPUAccelerator.enable_effect(context, :blur, intensity: 0.5)
GPUAccelerator.enable_effect(context, :glow, color: {0, 255, 128})