Problem
Research questions and friction points this paper is trying to address.
coherent scattering
dynamic optical properties
light-matter interaction
sub-surface scattering
non-static materials
Rendering Coherent Scattering via Quantum Collision Models
🤖 AI Summary
Traditional rendering methods assume static optical properties of materials, making it difficult to capture their dynamic evolution under varying incident illumination. This work proposes a novel approach that integrates ray tracing with a quantum collision model, formulating light–matter interactions as a sequence of symmetry-constrained unitary quantum collisions. For the first time in computer graphics, this framework introduces quantum-mechanical principles to simulate coherent subsurface scattering. The method supports non-ergodic dynamics and chaotic optical responses arising from multilayer interference, and leverages quantum collision operators together with short-range quantum precomputation to efficiently generate physically inspired, novel material appearances. Experimental results demonstrate the effectiveness of the proposed framework in rendering materials with distinctive optical characteristics, highlighting the feasibility and potential of quantum-inspired techniques in computer graphics.
📝 Abstract
Traditional light rendering techniques treat the optical properties of materials as static, yet this assumption breaks down in cases where these properties dynamically evolve in response to incident illumination. We present a novel shading framework that combines classical ray-tracing with a quantum collision model to explore the effect of coherent light-matter interactions in rendering. By treating incident light and material excitations as quantized modes, we model sub-surface scattering as a sequence of symmetry-constrained unitary collisions. This formulation allows for the incorporation of non-integrable dynamics and chaotic optical responses due to multi-layer interference effects. We demonstrate how these collision operators can be pre-computed using near-term quantum computers to generate standard BSDFs, enabling the rendering of new physics-inspired materials with distinct optical signatures.
Innovation
Methods, ideas, or system contributions that make the work stand out.
quantum collision model
coherent scattering
sub-surface scattering
unitary collisions
BSDF generation
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