3Dシーンの圧縮

頂点配列が大きすぎてロードするのもGPU上で処理するのも辛いので、圧縮します
これは2026年5月30日に行われた Kernel/VM探検隊@関西 12回目 での発表動画です
発表動画 :
ソースコード : https://github.com/Fadis/gct/

Transcript

1. 3Dγʔϯͷѹॖ NAOMASA MATSUBAYASHI(@fadis_) ࣸਅࡱӨ OK SNS౤ߘ OK ಈը੾Γൈ͖ OK https://github.com/Fadis/gct/ /
2. 976,012KB ߹ܭ
3. texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf 438,616KB ςΫενϟ 534,696KB ௖఺഑ྻ 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ 976,012KB ߹ܭ Ͱ͔͍ͷ͸ ςΫενϟͱ௖఺഑ྻ
4. Ωϟογϡ αϯϓϥʔ εϨου εϨου εϨου ⋮ ల։ ѹॖ͞Εͨ ςΫενϟ GPUʹ͸ѹॖ͞ΕͨςΫενϟΛ ల։͠ͳ͕ΒαϯϓϦϯά͢Δ࢓૊Έ͕͋Δ
5. https://techbookfest.org/ organization/ 5465190594248704 ٕज़ॻయͰ ϦΞϧλΠϜ3DάϥϑΟΫεͷ ຊΛग़͍ͯ͠·͢
6. texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf 438,616KB ςΫενϟ 534,696KB ௖఺഑ྻ 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ 976,012KB ߹ܭ 110,572KB ςΫενϟ 647,968KB ߹ܭ BC7Ͱѹॖ
7. texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf 534,696KB ௖఺഑ྻ 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ 110,572KB ςΫενϟ 647,968KB ߹ܭ ௖఺഑ྻ΋ѹॖ͍ͨ͠
8. ࠓճͷ໨ඪ ௖఺഑ྻΛѹॖ͢Δ
9. εϨου
11. ϩʔΧϧϫʔΫάϧʔϓ
12. Ωϟογϡ ڞ༗ϝϞϦ Ωϟογϡ ڞ༗ϝϞϦ Ωϟογϡ ڞ༗ϝϞ
13. ά ϥ ϑ Ϋ ε ύ Π ϓ ϥ Π ϯ ϐΫηϧॲཧ ௖఺ॲཧ ϥελϥΠβ ϑϥάϝϯτγΣʔμʔ ΧϥʔϒϨϯυ λεΫγΣʔμʔ ϝογϡγΣʔμʔ vkCmdDrawMeshTasksEXT
14. ά ϥ ϑ Ϋ ε ύ Π ϓ ϥ Π ϯ ϐΫηϧॲཧ ௖఺ॲཧ ϥελϥΠβ ϑϥάϝϯτγΣʔμʔ ΧϥʔϒϨϯυ λεΫγΣʔμʔ ϝογϡγΣʔμʔ vkCmdDrawMeshTasksEXT ϝογϡγΣʔμʔ ϥελϥΠβʹ౉͢ ࡾ֯ܗͷϦετΛੜ੒͢Δ
15. ά ϥ ϑ Ϋ ε ύ Π ϓ ϥ Π ϯ ϐΫηϧॲཧ ௖఺ॲཧ ϥελϥΠβ ϑϥάϝϯτγΣʔμʔ ΧϥʔϒϨϯυ λεΫγΣʔμʔ ϝογϡγΣʔμʔ vkCmdDrawMeshTasksEXT λεΫγΣʔμʔ ϝογϡγΣʔμʔΛ ԿεϨου࣮ߦ͢Δ͔ΛܾΊΔ
16. ά ϥ ϑ Ϋ ε ύ Π ϓ ϥ Π ϯ ϐΫηϧॲཧ ௖఺ॲཧ ϥελϥΠβ ϑϥάϝϯτγΣʔμʔ ΧϥʔϒϨϯυ λεΫγΣʔμʔ ϝογϡγΣʔμʔ vkCmdDrawMeshTasksEXT ϑϥάϝϯτγΣʔμʔ ࡾ֯ܗͷൣғ಺ͷϐΫηϧΛ Կ৭ͰృΔ͔ΛܾΊΔ
17. ڞ༗ϝϞϦ ڞ༗ϝϞϦ ڞ༗ϝϞ ϥελϥΠβ
18. ڞ༗ϝϞϦ ڞ༗ϝϞϦ ڞ༗ϝϞ ϥελϥΠβ খ͍͞ ڞ༗ϝϞϦͷαΠζ͕ݶΒΕ͍ͯΔͷͰ 1ͭͷϩʔΧϧϫʔΫάϧʔϓ͕ੜ੒Ͱ͖Δࡾ֯ܗͷ਺ʹ͸ݶΓ͕͋Δ
19. ϝογϡ ϝογϡΛߏ੒͢Δࡾ֯ܗ άϧʔϓԽ
20. ϝογϡ ϝογϡΛߏ੒͢Δࡾ֯ܗ άϧʔϓԽ ϝογϡϨοτ
21. ϨϯμϦϯά݁ՌʹөΔൣғ ͜ͷลͷϝογϡϨοτʹؚ·ΕΔࡾ֯ܗ͸ܭࢉͯ͠΋ݟ͑ͳ͍ ݟ͑ͳ͍ࣄ͕໌Β͔ͳϝογϡϨοτʹ͸ ϝογϡγΣʔμʔͷϩʔΧϧϫʔΫάϧʔϓΛׂΓ౰ͯͳ͍
22. ϨϯμϦϯά݁ՌʹөΔൣғ ͜ͷลͷϝογϡϨοτʹؚ·ΕΔࡾ֯ܗ͸ܭࢉͯ͠΋ݟ͑ͳ͍ ݟ͑ͳ͍ࣄ͕໌Β͔ͳϝογϡϨοτʹ͸ ϝογϡγΣʔμʔͷϩʔΧϧϫʔΫάϧʔϓΛׂΓ౰ͯͳ͍ ϝογϡϨοτΧϦϯά
23. ௖఺࠲ඪ͕͍ۙࡾ֯ܗ͕ू·͍ͬͯΔ΄ͲϝογϡϨοτΧϦϯά͕ޮ͘ ྑ͍͏͗͞ ѱ͍͏͗͞
24. ϝογϡϨοτ͸ϩʔΧϧϫʔΫάϧʔϓʹ1౓͚ͩϩʔυ͢Δ Ωϟογϡ Ωϟογϡ Ωϟογϡ
25. Ωϟογϡ Ωϟογϡ Ωϟογϡ ѹॖ
26. Joshua Barczak, Carsten Benthin, and David McAllister. 2024. DGF: A Dense, Hardware-Friendly Geometry Format for Lossily Compressing Meshlets with Arbitrary Topologies. Proc. ACM Comput. Graph. Interact. Tech. 7, 3, Article 46 (August 2024), 17 pages. https://doi.org/10.1145/3675383 Dense Geometry Format
27. ϒϩοΫ ϒϩοΫ ϒϩοΫ ⋮ 128όΠτ
28. ϒϩοΫ ϒϩοΫ ϒϩοΫ ⋮ 128όΠτ
29. ϒϩοΫ ϒϩοΫ ϒϩοΫ ⋮ 128όΠτ 1ϒϩοΫ=1ϝογϡϨοτʹؚ·ΕΔࡾ֯ܗͷ਺͸ѹॖͷޮ͖࣍ୈ
30. ϒϩοΫ ϒϩοΫ ϒϩ 0 128 256 ൪໨ͷ ϩʔΧϧϫʔΫάϧʔϓ͸ όΠτ໨͔ΒಡΉ n 128 × n Ωϟογϡ Ωϟογϡ Ωϟογϡ
31. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
32. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 0, 3, 5 0, 5, 6 0, 6, 1 1, 6, 7 1, 7, 2 3, 4, 5 4, 8, 10 4, 10, 5 5, 10, 6 6, 10, 13 6, 13, 7 ⋮ ௖఺ΠϯσοΫε Կ൪໨ͷ௖఺Λܨ͍Ͱ ࡾ֯ܗΛ࡞Δ͔Λࢦఆ͢Δ
33. meshlet 197 face_count=27 face 0 p(-0.390625,0.101562,-1.27344) p(-0.34375,0.046875,-1.27344) p(-0.382812,0.03125,-1.27344) face 1 p(-0.390625,0.101562,-1.27344) p(-0.382812,0.03125,-1.27344) p(-0.445312,0.0625,-1.27344) face 2 p(-0.390625,0.101562,-1.27344) p(-0.445312,0.0625,-1.27344) p(-0.453125,0.132812,-1.27344) face 3 p(-0.453125,0.132812,-1.27344) p(-0.445312,0.0625,-1.27344) p(-0.507812,0.0625,-1.27344) face 4 p(-0.453125,0.132812,-1.27344) p(-0.507812,0.0625,-1.27344) p(-0.5,0.148438,-1.27344) face 5 p(-0.5,0.148438,-1.27344) p(-0.507812,0.0625,-1.27344) p(-0.570312,0.0703125,-1.26562) face 6 p(-0.5,0.148438,-1.27344) p(-0.570312,0.0703125,-1.26562) p(-0.546875,0.171875,-1.26562) [ 0.08449, -0.01446, -0.00347] [ 0.13136, -0.06915, -0.00347] [ 0.09230, -0.08478, -0.00347] [ 0.08449, -0.01446, -0.00347] [ 0.09230, -0.08478, -0.00347] [ 0.02980, -0.05353, -0.00347] [ 0.08449, -0.01446, -0.00347] [ 0.02980, -0.05353, -0.00347] [ 0.02199, 0.01678, -0.00347] [ 0.02199, 0.01678, -0.00347] [ 0.02980, -0.05353, -0.00347] [-0.03269, -0.05353, -0.00347] [ 0.02199, 0.01678, -0.00347] [-0.03269, -0.05353, -0.00347] [-0.02488, 0.03240, -0.00347] [-0.02488, 0.03240, -0.00347] [-0.03269, -0.05353, -0.00347] [-0.09519, -0.04571, 0.00434] [-0.02488, 0.03240, -0.00347] [-0.09519, -0.04571, 0.00434] [-0.07175, 0.05584, 0.00434] [-0.47511, 0.11603, -1.26996] = + ϝογϡϨοτͷத৺ ͔ͦ͜Βͷࠩ෼ খ͍͞
34. P = 2S−127 (A + 215−Bd) ௖఺࠲ඪ ϝογϡϨοτ಺ͷ௖఺Ͱ ڞ௨ͷࢦ਺෦(scale) ج४ͱͳΔ௖఺ͷ࠲ඪͷ Ծ਺෦(anchor) ௖఺ຖͷΦϑηοτ ௖఺ຖͷΦϑηοτͷ Ϗοτ਺ શ௖఺ڞ௨ ௖఺ຖͷ஋
35. bits 0 1 2 3 4 5 6 7 0 8 bitsPerIndex numVerts 16 numTriangles geomIDMeta 24 geomIDMeta 32 40 48 56 64 72 80 88 96 haveGeomI DPalette 104 112 120 128 primIDBase 136 144 152 haveUser Data primIDBase 160 userData 168 176 184 P = 2S−127 (A + 215−Bd) Ax Ay Az S Bx By Bz 0 24 128 ϒϩοΫ ͱ ͱ ͸ϝογϡϨοτ಺Ͱݻఆ ϒϩοΫͷઌ಄24όΠτͷ ϔομͷதʹه࿥͢Δ A B S
36. 0 24 128 bits 0 1 2 3 4 5 6 7 0 8 bitsPerIndex numVerts 16 numTriangles geomIDMeta 24 geomIDMeta 32 40 48 56 64 72 80 88 96 haveGeomI DPalette 104 112 120 128 primIDBase 136 144 152 haveUser Data primIDBase 160 userData 168 176 184 Ax Ay Az S Bx By Bz P = 2S−127 (A + 215−Bd)
37. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
38. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 0, 3, 5 0, 5, 6 0, 6, 1 1, 6, 7 1, 7, 2 3, 4, 5 4, 8, 10 4, 10, 5 5, 10, 6 6, 10, 13 6, 13, 7 ⋮ ௖఺ΠϯσοΫε Կ൪໨ͷ௖఺Λܨ͍Ͱ ࡾ֯ܗΛ࡞Δ͔Λࢦఆ͢Δ
39. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 0, 3, 5 0, 5, 6 0, 6, 1 1, 6, 7 1, 7, 2 3, 4, 5 4, 8, 10 4, 10, 5 5, 10, 6 6, 10, 13 6, 13, 7 ⋮ Ͱ͔͍ ݸͷ ੔਺஋ numTriangles × 3
40. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 0, 3, 5 0, 5, 6 0, 6, 1 1, 6, 7 1, 7, 2 3, 4, 5 4, 8, 10 4, 10, 5 5, 10, 6 6, 10, 13 6, 13, 7 ⋮ ಉ͡஋͕ Կ౓΋ग़ͯ͘Δ
41. p0 p1 p2 ൪໨ͷࡾ֯ܗ n − 2 ลͰྡΓ߹͏ࡾ֯ܗͷγʔέϯε͸ 1ࡾ֯ܗ͋ͨΓ1௖఺ͰදͤΔ p3 ൪໨ͷࡾ֯ܗ ͷӈଆͷลͱྡ઀͠ Λ௨Δ n − 1 n − 2 p3 p4 ൪໨ͷࡾ֯ܗ ͷࠨଆͷลͱྡ઀͠ Λ௨Δ n n − 1 p4
42. p0 p1 p2 p3 p4 ൪໨ͷࡾ֯ܗ n − 2 ൪໨ͷࡾ֯ܗ ͷӈଆͷลͱྡ઀͠ Λ௨Δ n − 1 n − 2 p3 ൪໨ͷࡾ֯ܗ ͷࠨଆͷลͱྡ઀͠ Λ௨Δ n n − 1 p4 ࠨ઀ଓ ӈ઀ଓ
43. 0 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 14, 17, 9, 12, 8, 10, 4, 5, 3, 0, 6, 10, 13, 7, 11, 15, 16, 24, 23, 22, 13, 19, 10, 12, 18, 17, 20, 21, 19, 22, 23 ӈ, ࠨ, ӈ, ࠨ, ӈ, ࠨ, ӈ, ӈ, ӈ, ࠨ, ࠨ, ӈ, ӈ, ࠨ, ӈ, ӈ, ӈ, ӈ, ࠨ, ӈ, ࠨ, ࠨ, ӈ, ࠨ, ࠨ, ࠨ, ӈ, ӈ ௖఺ͷγʔέϯε ઀ଓํ޲
44. 0 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Generalized Triangle Strip Michael Deering. 1995. Geometry compression. In Proceedings of the 22nd annual conference on Computer graphics and interactive techniques (SIGGRAPH '95). Association for Computing Machinery, New York, NY, USA, 13–20. https://doi.org/ 10.1145/218380.218391
45. p0 p1 p2 p3 p4 p5 GTS͸Ұචॻ͖Ͱશͯͷࡾ֯ܗΛḷΕΔඞཁ͕͋Δ ͜͏͍͏࣌ʹࠔΔ
46. p0 p1 p2 p3 p4 p5 , , , , , p0 p1 p2 p3 p4 p5 ӈ, ࠨ, backtrack ௖఺ͷγʔέϯε ઀ଓํ޲ backtrack 1ͭલͷࡾ֯ܗͷ બ͹ͳ͔ͬͨํͷลͷઌʹ ৽͍͠ࡾ֯ܗΛ࡞Δ
47. p0 p1 p2 p3 p4 p5 p6 p7 ଞͷࡾ֯ܗͱܨ͕͍ͬͯͳ͍ࡾ֯ܗ͕͋Δͱ Ұචॻ͖Ͱ͖ͳ͍ backtrackͰ΋ḷΓண͚ͳ͍ p8
48. p0 p1 p2 p3 p4 p5 p6 p7 p8 , , , , , , , , p0 p1 p2 p3 p4 p5 p6 p7 p8 ӈ, ࠨ, restart, ӈ ௖఺ͷγʔέϯε ઀ଓํ޲ restart 1ͭલͷࡾ֯ܗͷࣄ͸๨Εͯ ௖఺ͷγʔέϯε͔Β 3ཁૉरͬͯࡾ֯ܗΛ࡞Δ
49. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 14, 17, 9, 12, 8, 10, 4, 5, 3, 0, 6, 10, 13, 7, 11, 15, 16, 24, 23, 22, 13, 19, 10, 12, 18, 17, 20, 21, 19, 22, 23, 0, 6, 1, 7, 2 ӈ, ࠨ, ӈ, ࠨ, ӈ, ࠨ, ӈ, ӈ, ӈ, ࠨ, ࠨ, ӈ, ӈ, ࠨ, ӈ, ӈ, ӈ, ӈ, ࠨ, ӈ, ࠨ, ࠨ, ӈ, ࠨ, ࠨ, ࠨ, ӈ, ӈ, restart, ӈ, ࠨ ௖఺ͷγʔέϯε ઀ଓํ޲ ͲΜͳࡾ֯ܗؚ͕·Ε͍ͯͯ΋දݱͰ͖Δ
50. ӈ, ࠨ, ӈ, ࠨ, ӈ, ࠨ, ӈ, ӈ, ӈ, ࠨ, ࠨ, ӈ, ӈ, ࠨ, ӈ, ӈ, ӈ, ӈ, ࠨ, ӈ, ࠨ, ࠨ, ӈ, ࠨ, ࠨ, ࠨ, ӈ, ӈ, restart, ӈ, ࠨ SFTUBSU 0b00 ӈ 0b01 ࠨ 0b10 CBDLUSBDL 0b11 ઀ଓํ޲ ઀ଓํ๏͸4छྨͳͷͰ 2bitͰදͤΔ Triangle Control 01 10 01 10 01 10 01 01 01 10 10 01 01 10 01 01 01 01 10 01 10 10 01 10 10 10 01 01 00 01 10
51. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 14, 17, 9, 12, 8, 10, 4, 5, 3, 0, 6, 10, 13, 7, 11, 15, 16, 24, 23, 22, 13, 19, 10, 12, 18, 17, 20, 21, 19, 22, 23, 0, 6, 1, 7, 2 ௖఺ͷγʔέϯε ઀ଓํ޲ 01 10 01 10 01 10 01 01 01 10 10 01 01 10 01 01 01 01 10 01 10 10 01 10 10 10 01 01 00 01 10 Ͱ͔͍
52. 9 23 24 8 6 7 10 12 4 2 5 13 3 11 0 14 15 1 20 19 21 22 18 17 16 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 5, 11, 12, 13, 14, 15, 16, 17, 18, 11, 19, 5, 3, 20, 1, 21, 22, 19, 18, 17, 9, 10, 23, 12, 24 ௖఺ͷγʔέϯε ௖఺Λ࢖͏ॱʹιʔτ ಉ͡௖఺͕࠶ར༻͞ΕΔ৔߹Λআ͍ͯ γʔέϯεͷ஋͸1ͮͭ૿Ճ͢Δ
53. 9 23 24 8 6 7 10 12 4 2 5 13 3 11 0 14 15 1 20 19 21 22 18 17 16 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 5, 11, 12, 13, 14, 15, 16, 17, 18, 11, 19, 5, 3, 20, 1, 21, 22, 19, 18, 17, 9, 10, 23, 12, 24 ௖఺ͷγʔέϯε First-Index Bits 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1 ॳొ৔ͩͬͨΒ1
54. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 5, 11, 12, 13, 14, 15, 16, 17, 18, 11, 19, 5, 3, 20, 1, 21, 22, 19, 18, 17, 9, 10, 23, 12, 24 ௖఺ͷγʔέϯε First-Index Bits 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1 5, 7, 14, 16, 19, 3, 4, 5, 13, 12, 11 10 − 5 = 5 18 − 11 = 7 ௚ۙͷॳΊͯొ৔ͨ͠஋ͱ ࠶ར༻͢Δ஋ͷࠩΛه࿥ Reuse Buffer
55. bits 0 1 2 3 4 5 6 7 0 8 bitsPerIndex numVerts 16 numTriangles geomIDMeta 24 geomIDMeta 32 40 48 56 64 72 80 88 96 haveGeomI DPalette 104 112 120 128 primIDBase 136 144 152 haveUser Data primIDBase 160 userData 168 176 184 Ax Ay Az S Bx By Bz 00101 00111 01110 10000 10011 00011 00100 00101 01101 01100 01011 Reuse Buffer 5, 7, 14, 16, 19, 3, 4, 5, 13, 12, 11 ௖఺͋ͨΓCJU 0b00 ௖఺͋ͨΓCJU 0b01 ௖఺͋ͨΓCJU 0b10 ௖఺͋ͨΓCJU 0b11 0b10
56. ϔομ 0 24 128 0 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ͜ͷ޲͖Ͱฒ΂Δ 00101 00111 01110 10000 10011 00011 00100 00101 01101 01100 01011 Reuse Buffer ௖఺ͷΦϑηοτd 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 0 0 1 0 1 1 0 0 0 0 0 1 0 1 First-Index Bits 01 10 01 10 01 10 01 01 01 10 10 01 01 10 01 01 01 01 10 01 10 10 01 10 10 10 01 01 00 01 10 Triangle Control
57. ͜͜ͱ͕͜͜Ϳ͔ͭΒͳ͚Ε͹OK ϔομ 0 24 128 ͜ͷ޲͖Ͱฒ΂Δ Ϳ͔ͭΔ৔߹͸ •͜ͷϝογϡϨοτʹؚ·ΕΔࡾ֯ܗͷ਺ΛݮΒͯ͠ΈΔ •௖఺ͷΦϑηοτ ͷϏοτ਺ΛݮΒͯ͠ΈΔ d
58. ά ϥ ϑ Ϋ ε ύ Π ϓ ϥ Π ϯ ϐΫηϧॲཧ ௖఺ॲཧ ϥελϥΠβ ϑϥάϝϯτγΣʔμʔ ΧϥʔϒϨϯυ λεΫγΣʔμʔ ϝογϡγΣʔμʔ vkCmdDrawMeshTasksEXT ͜ΕΛϝογϡγΣʔμʔͰ ϩʔυͯ͠ల։͢Δ
59. αϒάϧʔϓ ڞ༗ϝϞϦ ৸Δ ͜ͷൣғ಺ͷεϨου͸ ڞ༗ϝϞϦΛ࢖Θͣʹ ஋Λड͚౉ͤΔ NVIDIA GPUͷ৔߹ : 32εϨου AMD GPUͷ৔߹ : 32εϨου ϝογϡγΣʔμʔ͸௨ৗ 1ϩʔΧϧϫʔΫάϧʔϓ͋ͨΓ 1αϒάϧʔϓͰ࣮ߦ͞ΕΔ ࠷ۙͷ ͜ͷ΁ΜͷεϨου͸ ڞ༗ϝϞϦ͕ຒ·͍ͬͯΔͷͰ ࿈ܞͰ͖ͳ͍
60. ϝϞϦ͔Βϩʔυ 32εϨουͰ σίʔυ ϒϩοΫ
61. ӈ, ࠨ, ӈ, ࠨ, ӈ, ࠨ, ӈ, ӈ, ӈ, ࠨ, ࠨ, ӈ, ӈ, ࠨ, ӈ, ӈ, ӈ, ӈ, ࠨ, ӈ, ࠨ, ࠨ, ӈ, ࠨ, ࠨ, ࠨ, ӈ, ӈ, restart, ӈ, ࠨ Triangle Control ࠷ॳͷࡾ֯ܗ͸ඞͣ 3ͭͷ௖఺͕ඞཁͳͷͰ ͜͜ʹ҉໧ͷrestart͕͋Δ restart,
62. ӈ, ࠨ, ӈ, ࠨ, ӈ, ࠨ, ӈ, ӈ, ӈ, ࠨ, ࠨ, ӈ, ӈ, ࠨ, ӈ, ӈ, ӈ, ӈ, ࠨ, ӈ, ࠨ, ࠨ, ӈ, ࠨ, ࠨ, ࠨ, ӈ, ӈ, restart, ӈ, ࠨ Triangle Control restart, ௖఺Λ3ݸ࢖͏ ௖఺Λ1ݸ࢖͏ ௖఺Λ1ݸ࢖͏ ௖఺Λ3ݸ࢖͏ restart͸௖఺ͷγʔέϯεΛ3ཁૉফඅ͠ ͦΕҎ֎͸1ཁૉফඅ͢Δ
63. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 subgroupBallotͰ֤εϨου͕σίʔυ͠Α͏ͱ͍ͯ͠Δࡾ֯ܗ͕ restart͔Ͳ͏͔Λௐ΂Δ 1, ൪໨ͷεϨου͸ ࣗ਎ͷϏοτΑΓલʹཱ͍ͬͯΔrestartͷϏοτͷ਺ Ͱ ௖఺ͷγʔέϯεͷΦϑηοτ͕ٻ·Δ n n+ × 2
64. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 5, 11, 12, 13, 14, 15, 16, 17, 18, 11, 19, 5, 3, 20, 1, 21, 22, 19, 18, 17, 9, 10, 23, 12, 24 ਖ਼͍͠௖఺ͷγʔέϯε 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 18, 18, 19, 19, 19, 20, 20, 21, 22, 22, 22, 22, 22, 22, 23, 23, 24 first-index bitsΛbitCountͨ͠΋ͷ ௖఺γʔέϯεͷΦϑηοτ ΑΓલʹ͋Δfirst-index bitsͷϏοτྻΛ bitCount ෦෼తʹਖ਼͍͠௖఺ͷγʔέϯε͕ಘΒΕΔ ௖఺Λ࠶ར༻͍ͯ͠ΔՕॴͷ ஋͕͓͔͍͠
65. 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 4, 4, 5, 5, 5, 6, 7, 8, 9, 10, 10, 11 first-index bitsΛ൓సͯ͠bitCountͨ͠΋ͷ ௖఺γʔέϯεͷΦϑηοτ ΑΓલʹ͋Δfirst-index bitsͷϏοτྻΛ ൓సͯ͠bitCount Reuse BufferͷԿཁૉ໨ͷ஋Ͱ ௖఺γʔέϯεͷΦϑηοτΛ मਖ਼͢΂͖͔͕ٻ·Δ 5, 7, 14, 16, 19, 3, 4, 5, 13, 12, 11 Reuse Buffer
66. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 5, 11, 12, 13, 14, 15, 16, 17, 18, 11, 19, 5, 3, 20, 1, 21, 22, 19, 18, 17, 9, 10, 23, 12, 24 ਖ਼͍͠௖఺ͷγʔέϯε 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 5, 11, 12, 13, 14, 15, 16, 17, 18, 11, 19, 5, 3, 20, 1, 21, 22, 19, 18, 17, 9, 10, 23, 12, 24 Reuse Bufferͷ஋ΛҾ͍ͨ΋ͷ Reuse Bufferͷ஋Ͱ ෦෼తʹਖ਼͍͠௖఺ͷγʔέϯεΛमਖ਼ ਖ਼͍͠௖఺ͷγʔέϯε͕ಘΒΕΔ
67. Pn = 2S−127 (A + 215−Bdin ) 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 5, 11, 12, 13, 14, 15, 16, 17, 18, 11, 19, 5, 3, 20, 1, 21, 22, 19, 18, 17, 9, 10, 23, 12, 24 in = ϔομ d0 , d1 , d2 ⋯
68. DGF-SDK DGFͷϦϑΝϨϯε࣮૷ CPUͰѹॖ CPUͰల։ GPU(HLSL)Ͱల։ ͷ࣮૷͕༻ҙ͞Ε͍ͯΔ https://github.com/ GPUOpen- LibrariesAndSDKs/ DGF-SDK/tree/main
69. ࠲ඪ ๏ઢ ઀ઢ ςΫενϟ࠲ඪ ΠϯσοΫε texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf 534,696KB ௖఺഑ྻ DGF 110,572KB ςΫενϟ 647,968KB ߹ܭ 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ
70. meshlet 197 face_count=27 face 0 p(-0.390625,0.101562,-1.27344) -> p(-0.34375,0.046875,-1.27344) -> p(-0.382812,0.03125,-1.27344) -> face 1 p(-0.390625,0.101562,-1.27344) -> p(-0.382812,0.03125,-1.27344) -> p(-0.445312,0.0625,-1.27344) -> face 2 p(-0.390625,0.101562,-1.27344) -> p(-0.445312,0.0625,-1.27344) -> p(-0.453125,0.132812,-1.27344) -> face 3 p(-0.453125,0.132812,-1.27344) -> p(-0.445312,0.0625,-1.27344) -> p(-0.507812,0.0625,-1.27344) -> face 4 p(-0.453125,0.132812,-1.27344) -> p(-0.507812,0.0625,-1.27344) -> p(-0.5,0.148438,-1.27344) -> face 5 p(-0.5,0.148438,-1.27344) -> p(-0.507812,0.0625,-1.27344) -> p(-0.570312,0.0703125,-1.26562) -> face 6 p(-0.5,0.148438,-1.27344) -> p(-0.570312,0.0703125,-1.26562) -> p(-0.546875,0.171875,-1.26562) -> n(0.0968003,0.0200001,-0.995103) n(0.0849038,0.187208,-0.978644) n(-0.0247003,-0.0341004,-0.999113) n(0.0192,-0.0493,-0.9986) n(0.00519997,0.0545997,-0.998495) n(-0.0854998,-0.0383999,-0.995598) n(-0.0883036,0.106904,-0.99034) n(-0.225499,-0.0429997,-0.973294) n(-0.179595,0.163996,-0.969975) 0 1 2 0 2 3 0 3 4 4 3 5 4 5 6 6 5 7 6 7 8 ࠲ඪͱͦΕҎ֎ͷ஋Λ݁Ϳ ΠϯσοΫεΛ࡞Δ
71. × 25 × 21 × 7 ⋮ × 24 × 25 × 24 × 20 × 27 ͜ͷϒϩοΫͷΠϯσοΫεΛಡΈ͍ͨ ͬͯ͜͜ઌ಄͔Β Կཁૉ໨? ΠϯσοΫε
72. × 25 × 21 × 7 ⋮ × 24 × 25 × 24 × 20 × 27 ઌ಄͔Β146ཁૉ໨ userDataʹ ͜ͷϝογϡϨοτͷલʹ ͍ͭ͘ ͕͋Δ͔Λ ॻ͍͓ͯ͘ userData ϔομͷ࠷ޙͷ4όΠτ͸ ೚ҙͷσʔλΛॻ͍ͯྑ͍
73. https://registry.khronos.org/glTF/ specs/2.0/glTF-2.0.html#accessor- data-types glTF™ 2.0 Speci fi cation glTFʹ͸௖఺഑ྻ͕DGFͰ͋ΔࣄΛ ද͢खஈ͕ͳ͍
74. { "bufferView": 2, "componentType": 5120, "count": 67, "extensions": { "GCT_EXTENDED_TYPE": { "block_count": 4, "component_size": 128, "decoded_component_count": 3, "type": "DGF" } }, "max": [ 0.828125, 0.5390625, 0.015625 ], "min": [ -0.703125, -0.671875, -1.5859375 ], "type": "SCALAR" }, 1ཁૉ128όΠτͷ DGFܕͷϒϩοΫ͕ 4ݸฒΜͰ͍Δ σίʔυ͢Δͱ3ཁૉͷϕΫτϧʹͳΔ
75. std::uint32_t to_size( fx::gltf::Accessor::ComponentType componentType, fx::gltf::Accessor::Type type ) { return to_size( componentType ) * to_size( type ); } std::uint32_t to_size( const fx::gltf::Accessor &accessor ) { const bool has_extended_type = accessor.extensionsAndExtras.find( "extensions" ) != accessor.extensionsAndExtras.end() && accessor.extensionsAndExtras[ "extensions" ].find( "GCT_EXTENDED_TYPE" ) != accessor.extensionsAndExtras[ "extensions" ].end() && accessor.extensionsAndExtras[ "extensions" ][ "GCT_EXTENDED_TYPE" ].find( "type" ) != accessor.extensionsAndExtras[ "extensions" ][ "GCT_EXTENDED_TYPE" ].end(); if( has_extended_type ) { const std::string typestr = accessor.extensionsAndExtras[ "extensions" ][ "GCT_EXTENDED_TYPE" ][ "type" ]; const auto type_id = scene_graph::to_accessor_type_id( typestr ); const auto component_size = get_component_size( type_id ); const auto component_count = scene_graph::to_accessor_component_count( accessor ); return component_size * component_count; } return to_size( accessor.componentType, accessor.type ); } std::uint32_t get_block_count( const fx::gltf::Accessor &accessor ) { const bool has_extended_type = accessor.extensionsAndExtras.find( "extensions" ) != accessor.extensionsAndExtras.end() && accessor.extensionsAndExtras[ "extensions" ].find( "GCT_EXTENDED_TYPE" ) != accessor.extensionsAndExtras[ "extensions" ].end() && accessor.extensionsAndExtras[ "extensions" ][ "GCT_EXTENDED_TYPE" ].find( "block_count" ) != accessor.extensionsAndExtras[ "extensions" ][ "GCT_EXTENDED_TYPE" ].end(); if( has_extended_type ) { return accessor.extensionsAndExtras[ "extensions" ][ "GCT_EXTENDED_TYPE" ][ "block_count" ]; } return accessor.count; } https://github.com/Fadis/gct/blob/master/src/gct/gltf.cpp ֦ுܕ৘ใ͕͋ͬͨΒ ͦͬͪͷ৘ใΛฦ͢ ແ͔ͬͨΒඪ४ͷܕͷ৘ใΛฦ͢
76. face_attribute read_face_attribute( meshlet_reader reader, uint face_id ) { if( !reader.valid ) return null_face_attr; const mesh_type mesh = mesh_pool[ reader.mesh_id ]; const accessor_type normal_accessor = accessor_pool[ mesh.accessor + 2 ]; const accessor_type tangent_accessor = accessor_pool[ mesh.accessor + 3 ]; face_attribute f; uvec3 vertex_index; if( accessor_pool[ mesh.accessor + 1 ].type == GCT_SHADER_TYPE_ID_DGF ) { if( reader.dgf_info.header.numTriangles <= face_id ) return null_face_attr; uvec3 index; if( reader.wave_mode ) { index = DGFGetTriangle_BitScan_Wave( reader.dgf_info, face_id ); } else { index = DGFGetTriangle_BitScan_Lane( reader.dgf_info, face_id ); } for( uint i = 0u; i != 3u; ++i ) { f.vertex[ i ].position = vec4( DGFGetVertex( reader.dgf_info, index[ i ] ), 1.0f ); } f.primitive_id = reader.dgf_info.header.userData + face_id; const uint global_vertex_id = f.primitive_id * 3u; vertex_index = uvec3( read_index( accessor_pool[ mesh.accessor + 0 ], global_vertex_id + 0u ), read_index( accessor_pool[ mesh.accessor + 0 ], global_vertex_id + 1u ), read_index( accessor_pool[ mesh.accessor + 0 ], global_vertex_id + 2u ) ); } else { if( face_id >= reader.face_count ) return null_face_attr; f.primitive_id = ( reader.meshlet_id * 32u + face_id ); const uint global_vertex_id = f.primitive_id * 3u; vertex_index = uvec3( read_index( accessor_pool[ mesh.accessor + 0 ], global_vertex_id + 0u ), read_index( accessor_pool[ mesh.accessor + 0 ], global_vertex_id + 1u ), read_index( accessor_pool[ mesh.accessor + 0 ], global_vertex_id + 2u ) ); for( uint i = 0u; i != 3u; ++i ) { f.vertex[ i ].position = read_vertex( accessor_pool[ mesh.accessor + 1 ], vertex_index[ i ], vec4( 0.0, 0.0, 0.0, 1.0 ) ); } DGFͩͬͨΒ GLSLʹҠ২ͨ͠σίʔμͰల։ DGF͡Όͳ͔ͬͨΒ ͦͷ··௖఺഑ྻͷ಺༰ΛಡΉ
77. $ ./src/meshconv -i ./san_miguel/san_miguel.gltf -c dgf:12 -c dedup -c meshlet_statistics -c mesh_statistics -o san_miguel/ san_miguel_dgf.gltf ... ϝογϡϨοτ౷ܭ ࠷খ : 1 ࠷େ : 32 ฏۉ : 12.6085 ϝογϡϨοτͷ਺ : 350647 ϝογϡ౷ܭ ௖఺਺ : 13263489 ϢχʔΫ௖఺਺ : 10640934 ௖఺ͷΦϑηοτ ͷ࠷େϏοτ਺12ͰDGFʹม׵ d
78. ඇѹॖ DGF ࠩ෼
79. texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf 534,696KB ௖఺഑ྻ 110,572KB ςΫενϟ 647,968KB ߹ܭ 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ 575,024KB ߹ܭ DGFͰѹॖ 461,752KB(86%) ௖఺഑ྻ
80. texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf ௖఺഑ྻ ࠲ඪ ๏ઢ ઀ઢ ςΫενϟ࠲ඪ 110,572KB ςΫενϟ 575,024KB ߹ܭ 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ ΠϯσοΫε ͚ͩ͜͜ ѹॖͨ͠ 43,782KB(35%) 44,423KB(125%) 124,698KB 166,118KB 83,132KB etc. 461,752KB(86%)
81. ௖఺഑ྻ ࠲ඪ ๏ઢ ઀ઢ ςΫενϟ࠲ඪ 110,572KB ςΫενϟ 575,024KB 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ ΠϯσοΫε 43,782KB(35%) 44,423KB(125%) 124,698KB 166,118KB 83,132KB etc. texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf ͜ΕΛ ѹॖ͍ͨ͠ ߹ܭ 461,752KB(86%)
82. ௖఺ͷҐஔʹ͓͚Δ ෺ମͷද໘ͷ޲͖Λද͢ ๏ઢ
83. n(0.0968003,0.0200001,-0.995103) n(0.0849038,0.187208,-0.978644) n(-0.0247003,-0.0341004,-0.999113) n(0.0192,-0.0493,-0.9986) n(0.00519997,0.0545997,-0.998495) n(-0.0854998,-0.0383999,-0.995598) n(-0.0883036,0.106904,-0.99034) n(-0.225499,-0.0429997,-0.973294) n(-0.179595,0.163996,-0.969975) meshlet 197 face_count=27 face 0 p(-0.390625,0.101562,-1.27344) -> p(-0.34375,0.046875,-1.27344) -> p(-0.382812,0.03125,-1.27344) -> face 1 p(-0.390625,0.101562,-1.27344) -> p(-0.382812,0.03125,-1.27344) -> p(-0.445312,0.0625,-1.27344) -> face 2 p(-0.390625,0.101562,-1.27344) -> p(-0.445312,0.0625,-1.27344) -> p(-0.453125,0.132812,-1.27344) -> face 3 p(-0.453125,0.132812,-1.27344) -> p(-0.445312,0.0625,-1.27344) -> p(-0.507812,0.0625,-1.27344) -> face 4 p(-0.453125,0.132812,-1.27344) -> p(-0.507812,0.0625,-1.27344) -> p(-0.5,0.148438,-1.27344) -> face 5 p(-0.5,0.148438,-1.27344) -> p(-0.507812,0.0625,-1.27344) -> p(-0.570312,0.0703125,-1.26562) -> face 6 p(-0.5,0.148438,-1.27344) -> p(-0.570312,0.0703125,-1.26562) -> p(-0.546875,0.171875,-1.26562) -> 0 1 2 0 2 3 0 3 4 4 3 5 4 5 6 6 5 7 6 7 8 ๏ઢ 3ཁૉͷුಈখ਺఺਺ͷϕΫτϧ ৗʹ୯Ґ௕
84. ω θ ๏ઢͷϕΫτϧΛ ޲͖ ͱ௕͞ Ͱදͤ͹ ͳͷͰ2࣍ݩͰදͤΔ (θ, ω) d d = 1
85. ω θ x y z ͜ͷม׵ʹ ࡾ֯ؔ਺͕ཁΔ
86. cos (θ) ≃ 1 − θ2 2! + θ4 4! − θ6 6! + θ8 8! − θ10 10! ⋯ Λ਺஋తʹٻΊΔ cos (θ) ຖϑϨʔϜ௖఺ຖʹ͜ΜͳܭࢉΛͨ͘͠ͳ͍
87. x y z (u, v) ඇઢܗͳม׵Λ൐Θͳ͍ ԿΒ͔ͷ࠲ඪม׵
88. ਖ਼ീ໘ମͷද໘ͷ Ͳ͜ͱަ͔ࠩͨ͠Λ࢖ͬͯ ޲͖ΛදݱͰ͖Δ
89. ਖ਼ീ໘ମ͸ਅԣ͔ΒݟΔͱ ඛܗʹͳΔ
90. π 8 ͔Β ͷൣғ͕ શͯඛܗͷ಺ଆʹͳΔΑ͏ʹ ܏͍ͨ ࠲ඪܥΛ༻ҙ͢Δ (0,0) (1,1) π 8 uv u v
91. u v u v ද ཪ ͱ͸ผʹ දଆͰަ͔ࠩͨ͠ཪଆͰަ͔ࠩͨ͠Λද͢1bitͷϑϥά Λ࣋ͭ (u, v) s s = 0 s = 1
92. u v u v ද ཪ s = 0 s = 1 ീ໘ମΤϯίʔσΟϯά (u, v, s)
93. (u, v, s) ৗʹ0.0Ҏ্1.0ҎԼͷ஋ ੔਺ͰදͤΔ 1bitͷϑϥά
94. (u, v, s) ৗʹ0.0Ҏ্1.0ҎԼͷ஋ ੔਺ͰදͤΔ 1bitͷϑϥά 31 0 n31
95. ඇѹॖ n31 ࠩ෼
96. ෺ମͷද໘ͱฏߦͳϕΫτϧ ෺ମද໘ʹԊ͏ଟ༷ମΛఆٛ͢Δ ઀ઢ
97. ͜͏͍͏๏ઢͷ໘͕͋Δ࣌ ઀ઢ͸໘ͷ্ʹඳ͔Εͨ ୯Ґԁͷԁप্ͷͲ͔͜Λࢦ͍ͯ͠Δ ޲͖
98. ඛܗͷลͷ Ͳ͜ͱަ͔ࠩͨ͠Λ࢖ͬͯ ޲͖ΛදݱͰ͖Δ μΠΞϞϯυΤϯίʔσΟϯά
99. −1 1 0 ඛܗͷลͷ Ͳ͜ͱަ͔ࠩͨ͠Λ࢖ͬͯ ޲͖ΛදݱͰ͖Δ ลΛ1࣍ݩʹల։͢Ε͹ Ҏ্ ҎԼͷ஋Ͱ޲͖ ΛදݱͰ͖Δ −1 1 t μΠΞϞϯυΤϯίʔσΟϯά t
100. (u, v, s) 31 0 n21t11 t ූ߸ ઈର஋ ๏ઢ ઀ઢ
101. Wίϯϙʔωϯτ͸ ઀ฏ໘ۭؒͷ handednessΛද͢ https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#meshes-overview glTF™ 2.0 Speci fi cation
102. ͜ͷ΁Μ͕൓స͍ͯ͠Δ ਖ਼͍͠ϨϯμϦϯά݁Ռ
103. (u, v, s) 31 0 n20t11b1 t ූ߸ ઈର஋ ๏ઢ ઀ઢ ӈखܥͳΒ0 ࠨखܥͳΒ1
104. ඇѹॖ n20t11b1 ࠩ෼
105. 212,843KB(39%) 43,782KB(35%) 44,423KB(125%) texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf ௖఺഑ྻ ࠲ඪ ๏ઢ ઀ઢ ςΫενϟ࠲ඪ 110,572KB ςΫενϟ 326,115KB ߹ܭ 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ ΠϯσοΫε 41,592KB(33%) 0KB(0%) 83,132KB etc.
106. 212,843KB(39%) 43,782KB(35%) 44,423KB(125%) ௖఺഑ྻ ࠲ඪ ๏ઢ ઀ઢ ςΫενϟ࠲ඪ 110,572KB ςΫενϟ 326,115KB ߹ܭ 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ ΠϯσοΫε 41,592KB(33%) 0KB(0%) 83,132KB etc. texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf ͜ΕΛ ѹॖ͍ͨ͠
107. ϝογϡશମΛ෴͏λΠϓ ͔Β ·Ͱͷ ஋͔͠ग़ͯ͜ͳ͍ (0,0) (1,1) fixed ࠨӈରশͳ෺ͷ൒෼͚͕ͩ ඳ͔Ε͍ͯΔλΠϓ ͔Β ·Ͱͷ ஋͔͠ग़ͯ͜ͳ͍ (−1, − 1) (2,2) fixed ಉ͡ύλʔϯΛ܁Γฦ͠ షΓ෇͚ΔλΠϓ ςΫενϟ࠲ඪͷਫ਼౓͸ ͦ͜·ͰॏཁͰ͸ͳ͍ ൒ਫ਼౓ුಈখ਺఺਺
108. ඇѹॖ શ෦ѹॖ ࠩ෼
109. texturesmuros_e.dds texturesmuros_a.dds texturesmuros_d.dds texturesmuros_g.dds texturesmuros_h.dds texturesmuros_p_.dds texturesBarro_2.dds texturesmuros_q.dds ... texturesFL15stm.dds texturesfuente_azulejo.dds texturesFL12pis1.dds san_miguel.bin san_miguel.gltf 43,782KB(35%) 44,423KB(125%) ௖఺഑ྻ ࠲ඪ ๏ઢ ઀ઢ ςΫενϟ࠲ඪ 110,572KB ςΫενϟ 284,641KB 2,700KB ϊʔυπϦʔͱ ϚςϦΞϧ ΠϯσοΫε 41,592KB(33%) 0KB(0%) 41,475KB(49%) etc. 171,369KB(32%) ߹ܭ
110. ·ͱΊ DGFͱീ໘ମΤϯίʔσΟϯάΛ࢖ͬͯ ݟͨ໨ʹӨڹΛ༩͑ͣʹ௖఺഑ྻΛѹॖ
111. https://techbookfest.org/ organization/ 5465190594248704 ٕज़ॻయͰ ϦΞϧλΠϜ3DάϥϑΟΫεͷ ຊΛग़͍ͯ͠·͢