Module raymarch 

What every backend compiles for the raymarched SDF volume pass. What the raymarched SDF volume pass compiles, on every backend.

The other two tables here are per-backend because the backends compile different sets. This one is shared: all three compile the same six entries out of raymarch.slang, differing only in the ABI define and in what slangc is asked to emit. The cook iterates it to compile a volume’s field ahead of time and each renderer iterates it to find what the cook left.

Structs

Program

One entry point of one family.

Enums

Family

Which of the three draws an entry belongs to. A volume compiles one of the first two, plus the third when it casts shadows.

Stage

Whether an entry runs at the vertex or the fragment stage.

Constants

ALL

Every entry raymarch.slang declares.

BODY_MARKER

The marker a volume’s authored distance field is spliced at.

FILE

The shader file every entry below compiles from.

SCENE_TAP

The helper an authored shade calls to read the scene behind the surface.

Functions

abi_define

The ABI define naming a host’s binding layout. Vulkan takes the source’s #else branch and so needs none, which is why this is an Option.

defines

The variant defines for one family on one host.

families

The families a volume draws with: its own, plus the shadow caster when it casts one. A volumetric medium never casts, so the pair is exclusive.

field_taps_scene

Whether an authored distance field reads the scene behind the surface.

programs

Every entry a volume with these flags needs compiled.

source

The same source from the embedded templates alone.

source_with

The exact source text one family compiles for one host, with field spliced in as the world’s distance field. resolve lets a hot-reload build prefer the checkout’s copy of the template over the embedded one.