erichlof/THREE.js-PathTracing-Renderer

Features

• Physically Based Rendering - Provides a browser-based rendering library supporting advanced material types such as refractive glass, subsurface scattering, and metallic surfaces.
• Indirect Lighting Simulation - Simulates realistic light bouncing between surfaces in real time to produce accurate shadows, color bleeding, and ambient occlusion.
• Progressive Multi-Pass Accumulations - Refines noisy path-traced images iteratively over multiple frames by blending past samples to achieve a converged photorealistic output.
• Progressive Rendering - Refines visual quality incrementally over multiple rendering passes to reduce noise and achieve convergence in complex lighting scenarios.
• Physically Based Rendering Materials - Implements surface reflection, refraction, subsurface scattering, and metalness rules through custom shaders that simulate real-world light interactions.
• Ray Intersection Acceleration - Organises scene geometry into a spatial tree structure evaluated directly on the GPU to speed up ray-triangle intersection tests.
• Game-Ready Path Tracing - Calculates realistic global illumination, reflections, refractions, and soft shadows by tracing light rays interactively at high frame rates.
• Real-Time Raytracing - Simulates realistic light bouncing, soft shadows, and color bleeding interactively for three-dimensional web graphics.
• Three.js Path Tracing Engines - Implements progressive sampling, bounding volume hierarchies, and physically based materials within WebGL scenes.
• Web-Based Graphics Acceleration - Creating interactive 3D graphics and visual experiences inside web browsers using hardware-accelerated rendering frameworks.
• Geometric Intersection Calculators - Computes exact ray intersections against mathematical formulas for shapes like spheres and toruses instead of relying on triangle meshes.
• Dynamic Water Simulations - Simulates realistic ocean waves, refraction, reflection, and water movement in real time using procedural surface generation techniques.
• Procedural Environment Generation - Generating expansive natural landscapes, oceans, skies, and terrain dynamically using mathematical algorithms and ray tracing.
• Solid Boolean Operations - Performs real-time boolean operations on geometric shapes directly inside shading passes to build complex compound models on the fly.
• Cinematic Camera Simulations - Provides first-person navigation, adjustable depth of field, aperture size, focal distance, and supersampling anti-aliasing for polished visual output.
• Constructive Solid Geometry Kernels - Combines multiple 3D shapes using boolean operations like union, intersection, and difference to build complex compound models.
• Terrain Rendering - Generates large-scale outdoor landscapes and ground geometry within a path-traced rendering environment for visual simulation.
• Volumetric Media Simulations - Simulating smoke, fog, clouds, and atmospheric scattering to produce realistic light shafts and participating media effects.
• GPU-Accelerated Ray Marching - Combines analytical signed distance fields with ray tracing inside shader programs to render complex procedural environments and volumetric media.
• Procedural Environment Simulators - Combines ray marching with ray tracing to render expansive natural environments including oceans, physical skies, clouds, and terrains.
• Geometry Instancing - Duplicates geometry efficiently across scenes while sharing underlying mesh data to render complex environments with low overhead.
• Quadric Shape Renderers - Generates mathematical quadric surfaces like spheres, cylinders, and cones using ray-tracing equations directly in three-dimensional scenes.
• Volumetric Rendering Engines - Simulates participating media like smoke, fog, and dust to produce volumetric light shafts, caustics, and atmospheric scattering effects.
• Path Tracing Algorithms - Combines camera and light-source ray paths to illuminate difficult scenes with hidden light sources or indirect crack lighting.

Star history