The WGSL module for one effect kind — a pure function of the kind, so two
calls produce byte-identical source and the pipeline cache can key on the
descriptor (§33's rule, as every generated module in this package states it).
"copy" assigns the sampled texel to the output with no arithmetic
between — the bit-exact blit CopyEffect promises, by construction.
"grade" runs ColorGradeEffect's three operations in its documented
order on straight linear-light RGB, alpha untouched, nothing clamped (the
rgba8 destination saturates on write; a future float target must not be
silently clamped into agreeing with it).
"output-transform" encodes linear-light RGB as sRGB — the piecewise
IEC 61966-2-1 curve @fourjs/math's linearToSrgb computes on the CPU,
odd-extended below zero by taking the magnitude and restoring the sign so
a negative texel never reaches pow (undefined for a negative base).
Alpha is a coverage fraction, not a light quantity, and is not encoded.
The WGSL module for one effect kind — a pure function of the kind, so two calls produce byte-identical source and the pipeline cache can key on the descriptor (§33's rule, as every generated module in this package states it).
"copy"assigns the sampled texel to the output with no arithmetic between — the bit-exact blitCopyEffectpromises, by construction."grade"runsColorGradeEffect's three operations in its documented order on straight linear-light RGB, alpha untouched, nothing clamped (thergba8destination saturates on write; a future float target must not be silently clamped into agreeing with it)."output-transform"encodes linear-light RGB as sRGB — the piecewise IEC 61966-2-1 curve@fourjs/math'slinearToSrgbcomputes on the CPU, odd-extended below zero by taking the magnitude and restoring the sign so a negative texel never reachespow(undefined for a negative base). Alpha is a coverage fraction, not a light quantity, and is not encoded.