Optimizing Renders# Reducing Noise Path Tracing The Source of the Noise Bounces Caustics and Filter Glossy Light Falloff(光の減衰) Multiple Importance Sampling Glass and Transparent Shadows Light Portals (ライトポータル) Denoising Clamp Fireflies Shader Nodes(シェーダーノード) Node Optimizations Run-Time Optimizations Open Shading Language