The Tomorrow Children: Lighting and Mining with Voxels
The Tomorrow Children implements many state-of-the-art techniques for lighting. This talk explains how the production team modified voxel cone tracing to achieve real-time global illumination on the PS4.
Accurate Analytic Approximations for Real-Time Specular Area Lighting
Introducing analytic approximations for accurate real-time rendering of specular surfaces illuminated by polygonal light sources. The solution works without any assumptions on light-source shape or surface roughness, supporting real-time performance with a quality close to the ground truth.
Frustum-Traced Irregular Z-Buffers: Fast, Sub-Pixel-Accurate Hard Shadows
This system renders real-time, antialiased hard shadows using irregular z-buffers and achieves 32-sample, sub-pixel accuracy at twice the cost of a single visibility sample and handles complex CAD models and modern game assets interactively at 1080p, yet imposes no constraints on scene dynamism.
A simple modification of existing anti-aliasing methods, accumulative anti-aliasing (ACAA) stores only one color sample per pixel, producing the same image quality with much less memory and making higher MSAA sample rates practical.