ludic.lab: lab_png_write / lab_png_write_from (raw 8-bit, 1-4 channels, stored deflate) in png_write.ludic,
importable alone with its own LabPngState; png_convert.ludic's previews of float textures (R32F min..max,
RG16F x255, HDR x/(1+x) + sRGB); lab_ppm_to_png on the same encoder.
render3d: bake_load.ludic - impostor_from_baked / impostor_source / impostor_refill (a fog re-open reads
the bake), sky_baked_in and sky_precompute trying the bake at the start yaw (sky_compute is the
convolution, and sky_ibl_bytes always uses it), carpet_from_baked / carpet_bytes / carpet_finish,
bake_part_count / _len / _off. Compile-only: nothing run.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The device's textureCompressionBC is asked for and remembered (gvk_has_bc). tex_load_ex prefers a
DX10 .dds with the full chain beside the .png (not for an edge-padded cut-out atlas):
texture_dds.ludic reads BC7 / BC5 / BC4, gpu_tex_compressed makes the image with every level and
no colour-attachment use (a compressed image is only sampled and copied into), and
gvk_tex_upload_blocks copies each level's blocks from one staging buffer. A colour map is BC7
sampled as sRGB, a data map BC7 read as it is. examples/rendering/bc.ludic holds it, in the suite;
ludic.lab's plate carries its .dds (its three shots render at 56-60 dB against the .png's).
ludic-dev test 307/307, no Vulkan SDK in the environment.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ludic migrate state packages <every example program> packages/ludic.lab/example/plate.ludic
1804 vars into 126 states, 64 into lets; 23498 edits in 460 files
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A scene is an entry in the open registry LabScenes, shown on a plate: a
flat lit disc, the package's own small sky with the sun at one hour, and
a frame clock. Headless each camera (lab_shot, lab_shot_at) settles and
is written as build/lab/<scene>/<shot>.png (a stored PNG, written here);
in a window N and P step through them. tools/lab/run.sh and sheet.py
make the contact sheet; tools/lab/plate_build.py makes plate/.
ludic.render3d gains r3d_plate_mode (no terrain, grass or water is made)
and r3d_sky_path. quit() in a program with no frame loop links. The
example takes ~120 MB resident, 417 MiB peak footprint. Reseed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
