Parameterization-Aware MIP-Mapping Josiah Manson and Scott Schaefer - - PowerPoint PPT Presentation

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Parameterization-Aware MIP-Mapping Josiah Manson and Scott Schaefer - - PowerPoint PPT Presentation

Nov 04, 2022 35 likes •655 views

Parameterization-Aware MIP-Mapping Josiah Manson and Scott Schaefer Texas A&M University Texture Parameterization Texture Parameterization Texture Parameterization Texture Parameterization MIP-Mapping MIP-Mapping MIP-Mapping Aliased

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SLIDE 1

Parameterization-Aware MIP-Mapping

Josiah Manson and Scott Schaefer Texas A&M University

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SLIDE 2

Texture Parameterization

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SLIDE 3

Texture Parameterization

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SLIDE 4

Texture Parameterization

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SLIDE 5

Texture Parameterization

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SLIDE 6

MIP-Mapping

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SLIDE 7

MIP-Mapping

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SLIDE 8

MIP-Mapping

Aliased

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SLIDE 9

MIP-Mapping

Slow

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SLIDE 10

MIP-Mapping

Fast

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SLIDE 11

Filtering

Original Box

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2

1024

2

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SLIDE 12

Filtering

Original Box Ignore

64

2

1024

2

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SLIDE 13

Filtering

Original PAM Bilinear

64

2

1024

2

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SLIDE 14

Parameterization-Aware Filtering

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SLIDE 15

Parameterization-Aware Filtering

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SLIDE 16

Parameterization-Aware Filtering

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SLIDE 17

Parameterization-Aware Filtering

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SLIDE 18

Parameterization-Aware Filtering

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SLIDE 19

Parameterization-Aware Filtering

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SLIDE 20

Implementation

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SLIDE 21

Implementation

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SLIDE 22

Implementation

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SLIDE 23

Implementation

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SLIDE 24

Implementation

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SLIDE 25

Implementation

Color*Area Area

+

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SLIDE 26

Implementation

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SLIDE 27

Implementation

Color*Area Area

+

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SLIDE 28

Implementation

Color*Area

Σ

Area

Σ

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SLIDE 29

Implementation

Color*Area

Σ

Area

Σ

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SLIDE 30

Example

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SLIDE 31

Example

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SLIDE 32

Example

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SLIDE 33

Example

Original Box

64

2

1024

2

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SLIDE 34

Example

Box Ignore Original

64

2

1024

2

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SLIDE 35

Example

PAM Box Original

64

2

1024

2

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SLIDE 36

Basis Projection

[Kajiya and Ullner 1981]

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SLIDE 37

Basis Projection

[Kajiya and Ullner 1981]

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SLIDE 38

Basis Projection

[Kajiya and Ullner 1981]

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SLIDE 39

Basis Projection

[Kajiya and Ullner 1981]

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SLIDE 40

Pre/Post-filter Convolution

Real

[Kajiya and Ullner 1981]

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SLIDE 41

Pre/Post-filter Convolution

Real

[Kajiya and Ullner 1981]

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SLIDE 42

Pre/Post-filter Convolution

Real

[Kajiya and Ullner 1981]

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SLIDE 43

Pre/Post-filter Convolution

Real Fourier

[Kajiya and Ullner 1981]

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SLIDE 44

Optimized Filtering

Original Box

64

2

256

2

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SLIDE 45

Optimized Filtering

Original Optimized Bilinear

64

2

256

2

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SLIDE 46

Optimized Filtering

Original Constrained Bilinear

64

2

256

2

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SLIDE 47

Trilinear Basis

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SLIDE 48

Trilinear Basis

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SLIDE 49

Trilinear Basis

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SLIDE 50

Trilinear Basis

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SLIDE 51

Trilinear Basis

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SLIDE 52

Nonuniform Plane

Object Mesh

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SLIDE 53

Nonuniform Plane

Texture Map Object Mesh

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SLIDE 54

Nonuniform Plane

Box

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SLIDE 55

Nonuniform Plane

PAM Box

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SLIDE 56

Nonuniform Plane

PAM Trilinear

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SLIDE 57

Nonuniform Plane

Box (Anisotropic 16x)

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SLIDE 58

Nonuniform Plane

PAM Box (Anisotropic 16x)

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SLIDE 59

Nonuniform Plane

PAM Trilinear (Anisotropic 16x)

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SLIDE 60

Errors

Box PAM Box PAM Bilinear PAM Trilinear

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SLIDE 61

Preprocessing Times

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SLIDE 62

Conclusion

  • Correct for parameterization of surface
  • Project onto trilinear basis
  • Never decreases image quality
  • No changes to rendering or artwork
  • Less than tenth of a second for PAM box
  • Try it http://josiahmanson.com