Some environments store colour (sRGB) textures as HDR-encoded ASTC — the Focused vista's sky, water and glow. The
LDR decoder fills those with magenta error texels (the vista showed a huge magenta plane). We already re-decode
linear UNORM textures through the HDR profile for the same reason; do it for colour textures too: when the LDR decode
comes back mostly magenta, re-decode through the HDR profile and sRGB-encode the clamped linear colour so the sRGB
view samples it right (alpha stays linear). Verified by rendering the vista before/after. (A few of the vista's
special detail textures are neither plain LDR nor plain HDR colour and still look speckled; left for a follow-up.)
Also: a GUI-subsystem Windows build now sends the tool modes' log (--snapshot, --panorama, --bench) to the file,
since there's no console for them.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
