Texture Synthesis: Surfaces and RD Textures
CS 176 Winter 2011
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Textures Surfaces
How to carry to surface?
+ =
from Wei & Levoy
CS 176 Winter 2011
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surface given as mesh
synthesis into textures synthesis onto vertices (fine enough)
Images
Direct Synthesis
Color vertices
issues:
local orientation
th i d
CS 176 Winter 2011
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synthesis order… flattening/resampling hierarchy? notion of scale (Jacobian…)
Orientation Field
CS 176 Winter 2011
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2-way symmetry 4-way symmetry
Images from Wei & Levoy
Orientation Field
Construction choices
interpolation
push/pull with interpolation (Turk)
project to tangent plane
Images from Turk
CS 176 Winter 2011
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project to tangent plane
use symmetry (Wei&Levoy) incorporate geometry?
user painted
Synthesis Order
No obvious ordering on surface
punt: random (Wei&Levoy) geodesics from seed point (Turk)
i l li f i i fi ld
CS 176 Winter 2011
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integral lines of orientation field fast marching methods
priority queue on vertices arrival time