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167 symbols 280 edges 13 files 10 documented · 6%

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README

Amitābha: Reference Implementation of Holographic Radiance Cascades

This repository contains a sample implementation of Holographic Radiance Cascades (HRC), a variant of Radiance Cascades which can accurately resolve hard shadows and volumetrics with no added cost.

Other implementations: * Yaazarai/Volumetric-HRC: A full implementation by Yaazarai in Game Maker, which uses textures for storage. Has an explanation of HRC which is less technical than the paper. * Nihil: Implementation of HRC on the CPU treating lines as continuous functions which are bilinearly discretized. Has some useful volumetric DDA code and is quite simple, but has low quality and performance. * Shadertoy by Suslik: Web demo of HRC. Inefficient merging, and no extensions.

Gallery

Radial HRC

Radial HRC was an old implementation that used one grid per direction in order to test the hypothesis that RC could resolve sharp shadows so long as the probe spacing perpendicular to the rays was small at all levels.

Join the Radiance Cascades Discord for more information and to discuss the algorithm!

Extension points exported contracts — how you extend this code

FluenceType (Interface)

(no doc) [5 implementers]

src/fluence.rs

ToFluence (Interface)

(no doc) [5 implementers]

src/color.rs

Tracer (Interface)

(no doc) [4 implementers]

src/trace.rs

RadianceStorage (Interface)

Construct from kernel arg somehow. Then later there's like a Pyraimd::construct_storages() and then Pyramid[level] passi [1 …

src/storage.rs

Block (Interface)

(no doc) [3 implementers]

src/trace/voxel.rs

Transmittance (Interface)

(no doc) [4 implementers]

src/fluence.rs

ColorType (Interface)

(no doc) [4 implementers]

src/color.rs

WorldTracer (Interface)

(no doc) [3 implementers]

src/trace.rs

Core symbols most depended-on inside this repo

Shape

Method 103

Class 32

Function 16

Interface 13

Enum 3

Languages

Rust100%

Modules by API surface

src/fluence.rs29 symbols

src/lib.rs25 symbols

src/trace.rs24 symbols

src/scene.rs19 symbols

src/color.rs19 symbols

src/trace/voxel.rs18 symbols

src/bin/multibounce.rs12 symbols

src/utils.rs8 symbols

src/render.rs6 symbols

src/storage.rs4 symbols

src/bin/julia.rs1 symbols

src/bin/default.rs1 symbols

For agents

$ claude mcp add amitabha \
  -- python -m otcore.mcp_server <graph>

⬇ download graph artifact