render3d: the ground's maps read through a page table of fine tiles over a coarse map (shaders)

terpage.glsl is the reference block (tpSlot, tpUV, terHeight, terHeightSmooth, terNormalXZ, terOrtho, tpOrthoRes, tpOrthoLod), pasted by section into terrain.vert, terrain.frag, tersun.frag, model.vert, grass.vert and grass.mesh. u_tp_on = 0 reads the old samplers with the old coordinates and filtering; on, a resident tile is read at level 0 from u_tp_h / u_tp_nrm / u_tp_ortho, anything else from the coarse map now bound under the old names. The B-splines use the FULL map's texel and take every tap through the page, so a tile edge stays one surface; blurred photograph reads (lod 1-2.5) stay on u_ortho with the level moved down by the coarse map's ratio. The fragment stages drop their unused u_height. SPIR-V rebuilt: terrain programs carry 23 samplers (21 in the fragment stage), up from 19. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-29 17:10:43 +03:00 · 2026-09-29 17:10:43 +03:00 · eee6a0906e
commit eee6a0906e
parent 329439cf61
66 changed files with 837 additions and 267 deletions
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