Smoothgl

🚀 SmoothGL v0.3.0-beta30 This major update introduces full support for AMD FidelityFX Super Resolution (FSR) paired with CAS Shaders, alongside a revolutionary overhaul of the L3 Vertex Buffer Cache (v2-v14) for massive rendering pipeline optimizations.

🔧 Graphics & Rendering Engine (FSR & CAS) Added FSR Upscaling: Implemented full integration of AMD FidelityFX Super Resolution with 4 quality presets:

Performance

Balanced

Quality

Ultra Quality

CAS Shaders Integration: Embedded Contrast Adaptive Sharpening shaders to eliminate blurriness and drastically improve post-upscaling image clarity.

Full-Screen Quad Rendering: Implemented a highly optimized VAO/VBO/EBO pipeline tailored for full-screen upscaled blitting.

⚡ Revolutionary L3 Vertex Buffer Cache (12 Improvements, v2-v14) The vertex buffer caching subsystem has been completely re-architected to eliminate micro-stutters and minimize CPU-to-GPU overhead:

Enhanced Hashing: Replaced legacy FNV-1a with the ultra-fast xxHash64 algorithm to ensure more uniform distribution and prevent collision bottlenecks.

Predictive Caching: Integrated ML-driven prediction to forecast upcoming buffer allocations based on historical access patterns.

GPU-Side Buffers: Implemented persistent mapped buffers to enable fast, zero-copy data uploads directly to the GPU.

Delta Encoding: Introduced inter-frame data compression (storing only changes) to drastically reduce RAM/VRAM footprint.

Hierarchical Cache: Deployed a multi-tier (L1/L2/L3) cache structure that dynamically ranks data by access frequency.

Spatial Hashing & Compute Shaders:

Added spatial hashing based on buffer contents and world position.

Offloaded heavy hashing workloads to the GPU via Compute Shaders.

Parallelization & Filtering:

Implemented multi-threaded hashing to effortlessly handle massive data buffers.

Integrated a Bloom Filter for instantaneous tracking of missing entries (negative lookups).

Smart Memory Management:

Adaptive Sizing: Dynamic cache resizing on the fly based on runtime memory pressure.

Compression-Aware Eviction: Evicted L3 records are compressed before discarding to optimize storage overhead.

Prefetching: Proactively pre-loads vertex buffers by analyzing camera movement vectors and velocity.

🧹 Code Cleanup & Refactoring Removed GPU Detection: Stripped out redundant GPU detection routines since FSR is hardware-agnostic and runs out-of-the-box on all modern GPUs (NVIDIA, AMD, Intel).

Dropped Vulkan Backend: Removed experimental Vulkan support to fully double down on a pure, highly optimized OpenGL solution leveraging FSR.

📊 Configuration & Commands Added new console commands for dynamic, on-the-fly upscaling management:

/smoothgl set enableFSR <true/false> — Toggle FSR scaling.

/smoothgl set fsrQualityMode — Switch between quality modes (Performance, Balanced, Quality, Ultra Quality).

/smoothgl set fsrRenderScale — Manually fine-tune the internal rendering scale.