ARKitのための3D算数

Transcript

1. ARKitͷͨΊͷ 3Dࢉ਺ KBOY@ے೑ΤϯδχΞ 2018.8.30@iOSDC 2018

2. ࣗݾ঺հ ૣҴా͕฼ߍͰ͢

3. ے೑ΤϯδχΞͷܦྺ

4.      ೥݄ ݄ ݄ ೥݄ ೥݄

   Spajam༏ल৆ ϕετϘσΟδϟύϯग़৔ ے೑.swift։࠵ స৬υϥϑτग़ԋ ॱ෩ຬൕʂʁ

5. ͔ͦ͠͠͏؁͘͸ͳ͍

6. ے೑ΤϯδχΞͷ୆಄

7. ے೑ΤϯδχΞ
   ઓࠃ࣌୅

8. ͦ͏ͩʂARͩʂ

9.      ೥݄ ݄ ݄ ೥݄ ೥݄

   Spajam༏ल৆ ϕετϘσΟδϟύϯग़৔ స৬υϥϑτग़ԋ ے೑.swift։࠵

10. ৐Δ͔͠ͳ͍ ͜ͷϏοά΢Σʔϒʹ

11. ͱ͍͏͜ͱͰ

12. ࠓ೥1݄ʹ ARελʔτΞοϓ΁JOIN

13. Graffity Inc. Ϧʔμʔ

14. ͜ΜͳΞϓϦ࡞ͬͯ·͢

15. ͱ͍͏͜ͱͰARKitΛ ؤுͬͯษڧ͠·ͨ͠

16. ͔͠͠ ͦ͏؁͘͸ͳ͍

17. ͜͏͍͏ྫΛ ߟ͑ͯΈ·͠ΐ͏

18. εΫϦʔϯ্ͷλοϓͨ͠෦෼ͷ 30cmલʹ ඈߦػΛஔ͘

19. None

20. ༨༟ͬ͠ΐʂ

21. λοϓδΣενϟʔ͔Β x, yΛऔಘ, z͸0.3mΛೖΕΕ͹׬੒ʂ

22. ݁Ռ

23. None

24. શવग़ͯ͜ͳ͍…

25. ཧ૝

26. None

27. ݱ࣮

28. None

29. ΍ͬͺΓ ͦ͏؁͘͸ͳ͍

30. ͦΜͳ࣌ɺϦʔμʔ͕ खΛࠩ͠৳΂ͯ͘Εͨ

31. 3DϓϩάϥϛϯάΛ ษڧ͢Ε͹༨༟ͩΑ

32. Ϧʔμʔʂʂ

33. ͦͯ͠๻͸

34. 3Dϓϩάϥϛϯά Λษڧͨ͠ɻ

35. ษڧʹ࢖ͬͨຊ IUUQTBN[OUP.4V.F( IUUQTBN[OUP1,'Z5

36. ͱ͍͏͜ͱͰ

37. ࠓ೔͸օ͞Μʹ Θ͔Γ΍͘͢ 3DϓϩάϥϛϯάΛ આ໌͠·͢

38. ARKitͷͨΊͷ 3Dࢉ਺ KBOY@ے೑ΤϯδχΞ 2018.8.30@iOSDC 2018

39. ࠓ೔ͷΰʔϧ

40. εΫϦʔϯ্ͷλοϓͨ͠෦෼ͷ 30cmલʹ ඈߦػΛஔ͘

41. None

42. ษڧ͢Δ͜ͱ •࠲ඪܥΛ஌Δ •࠲ඪม׵ͷϝιουΛ஌Δ

43. ARKitͰ࢖͏࠲ඪܥ

44. ࠲ඪ·ͱΊ ϫʔϧυ࠲ඪܥ ΦϒδΣΫτ࠲ඪܥ Χϝϥ࠲ඪܥ εΫϦʔϯ࠲ඪܥ iPad ProͰॻ͖·ͨ͠ɻ

45. ϫʔϧυ࠲ඪܥ ͜ΕΑΓେ͖ͳ֎ଆͷ ࠲ඪۭؒͰදݱͰ͖ͳ͍

46. ΦϒδΣΫτ࠲ඪܥ ඈߦػࣗ਎ͷϩʔΧϧ࠲ඪʂ

47. Χϝϥ࠲ඪܥ ΧϝϥͷϩʔΧϧ࠲ඪ

48. Χϝϥ࠲ඪܥ

49. εΫϦʔϯ࠲ඪܥ

50. εΫϦʔϯ࠲ඪܥ

51. ࠲ඪ·ͱΊ ϫʔϧυ࠲ඪܥ ΦϒδΣΫτ࠲ඪܥ Χϝϥ࠲ඪܥ εΫϦʔϯ࠲ඪܥ iPad ProͰॻ͖·ͨ͠ɻ

52. ΰʔϧͷ֬ೝ

53. εΫϦʔϯ্ͷλοϓͨ͠෦෼ͷ 30cmલʹ ඈߦػΛஔ͘

54. 30cm εΫϦʔϯλοϓͷ xy࠲ඪऔಘ ϫʔϧυ࠲ඪʹม׵ͯ͠ ͦ͜ʹஔ͘ʂ Χϝϥͷ30cmલʹஔ͘ ϫʔϧυ࠲ඪʹม׵ ᶃ ᶄ ᶅ

    εΫϦʔϯ࠲ඪʹม׵ ᶆ ᶄ’ εΫϦʔϯ࠲ඪʹม׵

55. ᶃΧϝϥ࠲ඪͰ30cmલʹஔ͘ ϚΠφε 30cm

56. None

57. ᶄϫʔϧυ࠲ඪʹม׵

58. ͋Δ࠲ඪܥ͔Β ͋Δ࠲ඪܥ΁ ม׵Ͱ͖Δ

59. ᶄ’εΫϦʔϯ࠲ඪʹม׵

60. ϫʔϧυ࠲ඪܥ→εΫϦʔϯ࠲ඪܥ

61. ᶅεΫϦʔϯλοϓͷxy࠲ඪऔಘ

62. ᶆϫʔϧυ࠲ඪʹม׵ͯ͠ஔ͘

63. εΫϦʔϯ࠲ඪܥ→ϫʔϧυ࠲ඪܥ

64. 30cmલ λοϓͨ͠Ґஔ ม׵ ม׵

65. ͦΕͧΕɺ౎߹ͷ͍͍ ࠲ඪܥͰܭࢉ͢Δ

66. ͪͳΈʹ

67. εΫϦʔϯ࠲ඪܥ͚ͩ Ͱ΋શͯΛදݱͰ͖Δ

68. εΫϦʔϯλοϓͷ xy࠲ඪऔಘ ϫʔϧυ࠲ඪʹม׵ͯ͠ ͦ͜ʹஔ͘ʂ Χϝϥͷ30cmલʹஔ͘ ϫʔϧυ࠲ඪʹม׵ ᶃ ᶄ ᶅ εΫϦʔϯ࠲ඪʹม׵

    ᶆ ᶄ’ εΫϦʔϯ࠲ඪʹม׵ ͜͜ল͚Δ 30cm

69. ͜͜ল͚Δ

70. ͬͪ͜ͷํָ͕͡ΌΜʂ

71. ͔ͨ͠ʹ

72. ͜ͷ୹͍ίʔυͰߦ͚Δ

73. None

74. Ͱ΋

75. 

76. ࣮͸

77. ͜ͷ0.996͸ Χϝϥ࠲ඪܥͷ0.3mͱ ಉ͡ҙຯ

78. 0.996ͱ͸

79. ͜͜Ͱ࠲ඪܥͷ෮श

80. 0.0 1.0 εΫϦʔϯ࠲ඪܥͷ z 0.001m 1000m Χϝϥ࠲ඪܥͷ z

81. εΫϦʔϯ࠲ඪܥͷz

82. https://developer.apple.com/documentation/scenekit/scnscenerenderer/1522631-unprojectpoint εΫϦʔϯ࠲ඪܥͷ z͸0.0~1.0

83. Χϝϥ࠲ඪܥͷz͸ʁ

84. None
85. None
86. None

87. debugͯ͠ΈΔͱ

88. None

89. zNearΛ มԽͤͯ͞ΈΑ͏

90. None

91. 0.0 1.0 εΫϦʔϯ࠲ඪܥͷ z 0.001m 1000m Χϝϥ࠲ඪܥͷ z

92. εΫϦʔϯ࠲ඪͷz vs Χϝϥ࠲ඪͷz

93. http://www.alecjacobson.com/weblog/?p=3835 -0.001 -1000 0.996 screenZ = f(n + cameraZ)/((f −

    n)cameraZ) -0.3 screenZ cameraZ

94. screenZ = f(n + cameraZ)/((f − n)cameraZ) screenZ = 1000(0.001

    + (−0.3))/((1000 − 0.002)(−0.3)) f = 1000 n = 0.001 cameraZ = − 0.3 screenZ = 0.9966...

95. ࣮ʹ໘౗͍͘͞

96. ͜͜ল͚Δʂʁ

97. ඞཁʂ

98. ͱ͍͏͜ͱͰ

99. ࠲ඪม׵Λۦ࢖ͯ͠

100. None

101. ׬੒ʂ

102. ΋͏ͪΐ͍΍ͬͯΈ·͠ΐ͏ʂ

103. ඈߦػΛ֦େͨ͠Γɺ ճసͤ͞Α͏ʂ

104. ֦େɾॖখ

105. ճస (SCNVector4) ࣠ ֯౓

106. ճస(Euler angle)

107. ճస (Euler angle) x

108. ճస (Euler angle) Y

109. ճస (Euler angle) Z

110. x Y Z

111. Ҏ্

112. ͜͜·Ͱ͕ࢉ਺

113. ·ͩ਺ֶ͕͋Γ·͢ɻ

114. Ͱ΋

115. ࠲ඪͷ֓೦Λཧղͯ͠ SceneKit΍ARKitΛ ࢖͍͜ͳͤΕ͹ྑ͍ɻ

116. ਺ֶʹ͍ͭͯ͸QiitaͰɻ

117. ARKitͷͨΊͷ 3D ਺ֶ

118. ࠂ஌

119. Graffity Inc. ΤϯδχΞืूதʂ

120. ࠷ޙʹ

121. ݸਓͰARKitͷಈըڭࡐ࡞੒த

122. One More Thing

123. ࠓ೥΋΍Γ·͢ .kt

124. ے೑.kt w :BIPP
     -PEHF
     w ೥݄೔

125. ͓ΘΓ