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Digital Sculpture

BA2 / BA5

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Disclaimer

This session will introduce and discuss thetheory, development and application of digital

sculpture. It will not discuss which buttons to

press!

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Asset Creation: Modelling

Polygons

Vertex Edge

Face

Normal (asurfaceat a point Pis a vectorthatis perpendicularto the tangent planeto that surface at P.)

Source: http://en.wikipedia.org/wiki/Normal_(geometry)

http://en.wikipedia.org/wiki/Surfacehttp://en.wikipedia.org/wiki/Vector_(geometry)http://en.wikipedia.org/wiki/Perpendicularhttp://en.wikipedia.org/wiki/Tangent_spacehttp://en.wikipedia.org/wiki/Normal_(geometry)http://en.wikipedia.org/wiki/Normal_(geometry)http://en.wikipedia.org/wiki/Normal_(geometry)http://en.wikipedia.org/wiki/Tangent_spacehttp://en.wikipedia.org/wiki/Perpendicularhttp://en.wikipedia.org/wiki/Vector_(geometry)http://en.wikipedia.org/wiki/Surface

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Asset Creation: Modelling

NURBS (Non-Uniform Rational B-Spline)

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Asset Creation: Modelling

o NURBS

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Asset Creation: Modelling

Sub-Division Surfaces

Geris Game / Pixar Paper)

http://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Game

http://graphics.pixar.com/library/Geri/paper.pdf

http://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Gamehttp://graphics.pixar.com/library/Geri/paper.pdfhttp://graphics.pixar.com/library/Geri/paper.pdfhttp://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Gamehttp://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Gamehttp://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Gamehttp://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Gamehttp://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Gamehttp://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Gamehttp://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Gamehttp://www.pixar.com/short_films/Theatrical-Shorts/Geri's-Game

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Asset Creation: Modelling

Quads are good. Tris are bad. N-gons have their

place?

http://www.youtube.com/watch?v=k_S1INdEmdI#t=52

http://www.youtube.com/watch?v=k_S1INdEmdI#t=52http://www.youtube.com/watch?v=k_S1INdEmdI#t=52http://www.youtube.com/watch?v=k_S1INdEmdI#t=52

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Asset Creation: Methods

o Point-by-point / Poly-by-polyo http://www.youtube.com/watch?v=O9UZYTwwQcc

o Box-modellingo http://www.youtube.com/watch?v=ubgvomRTW80

Sub-division

Sculpture

http://www.youtube.com/watch?v=O9UZYTwwQcchttp://www.youtube.com/watch?v=ubgvomRTW80http://www.youtube.com/watch?v=ubgvomRTW80http://www.youtube.com/watch?v=O9UZYTwwQcc

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Asset Creation: Sculpture

Sub-Divided Object

vs. Voxels

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Asset Creation: Sculpture

o Sub-Divided Object

o Voxels

o Dynamic tessellation (Sculptris; also see DX11)o http://www.nvidia.com/object/tessellation.html

o http://www.youtube.com/watch?v=X9H-EZuJNvk

o http://www.youtube.com/watch?v=CvaGd4KqlvQ

o Re-Mesh (DynaMesh demo)

http://www.nvidia.com/object/tessellation.htmlhttp://www.youtube.com/watch?v=X9H-EZuJNvkhttp://www.youtube.com/watch?v=CvaGd4KqlvQhttp://www.youtube.com/watch?v=CvaGd4KqlvQhttp://www.youtube.com/watch?v=CvaGd4KqlvQhttp://www.youtube.com/watch?v=X9H-EZuJNvkhttp://www.youtube.com/watch?v=X9H-EZuJNvkhttp://www.youtube.com/watch?v=X9H-EZuJNvkhttp://www.youtube.com/watch?v=X9H-EZuJNvkhttp://www.nvidia.com/object/tessellation.htmlhttp://www.nvidia.com/object/tessellation.htmlhttp://www.nvidia.com/object/tessellation.html

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Concept Art: Concept-to-Asset

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Game-Ready: Requirements

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Game-Ready: Requirements

High-poly to Low poly work flow

Transfer Detail

Sculpt high poly *transfer to* maps:

Normal

Bump

Displacement

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Game-Ready: Requirements

Topology

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Game-Ready: Requirements

Topology

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Tools

Software:o Amorphium

o ZBrush

o Mudbox

o

3DCoato Sculptris

o Mari

Hardware:o Haptic devices (ClayTools)o Scanning (Passive / Active / Photogrammetry)

o 3DPrinting

o Leap Motion

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Pixologic: ZBrush

o 2.5D

o Sub-Division & Subtools

o ZSpheres

o Transpose

o DynaMesh

o ShadowBox

o Polypaint & Projection

o Matcap

o Re-topology / Zremesher

o Render / Presentation

http://pixologic.com/zbrush/industry/

http://pixologic.com/zbrush/industry/http://pixologic.com/zbrush/industry/

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Pixologic: Sculptris

http://pixologic.com/sculptris/emails/operating-

system.php

http://pixologic.com/sculptris/emails/operating-system.phphttp://pixologic.com/sculptris/emails/operating-system.phphttp://pixologic.com/sculptris/emails/operating-system.phphttp://pixologic.com/sculptris/emails/operating-system.phphttp://pixologic.com/sculptris/emails/operating-system.php

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Term 2: Schedule**

Wk 10Briefing / Introduction

Wk 11Dynamesh

Wk 12 - ZSpheres / TransposeWk 13 - Shadow Box

Wk 14 - Materials / Polypaint / Go-Z

Wk 15 - (Re-)Topology

Wk 16 - UV / Transfer Maps (Baking)

Wk 17 SubmissionFriday21st Feb.

** Subject to change

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Check-out

http://pixologic.com/interview/

http://www.zbrushcentral.com/forum.php

http://www.gameartisans.org/forums/forum.php

http://cghub.com/

http://www.polycount.com/

http://pixologic.com/zbrush/getting-started/

http://pixologic.com/interview/http://www.zbrushcentral.com/forum.phphttp://www.gameartisans.org/forums/forum.phphttp://cghub.com/http://www.polycount.com/http://pixologic.com/zbrush/getting-started/http://pixologic.com/zbrush/getting-started/http://pixologic.com/zbrush/getting-started/http://pixologic.com/zbrush/getting-started/http://www.polycount.com/http://cghub.com/http://www.gameartisans.org/forums/forum.phphttp://www.zbrushcentral.com/forum.phphttp://pixologic.com/interview/http://pixologic.com/interview/

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Questions?