View
1.398
Download
11
Category
Tags:
Preview:
DESCRIPTION
The GPU Technology Conference is the most significant event in 2009 dedicated to application development on the GPU. Encompassing three simultaneous summits, this event will focus on the latest breakthroughs developers, engineers, and researchers are achieving through the use of the graphics processing unit (GPU) to solve the world’s most important computing challenges.
Citation preview
OptiTex Virtual Try On Engine
Imagine what having:
• Realistic CG clothes so convincing, they could not be distinguished from pictures.
• Real time rendering capabilities of human bodies and faces that reproduce incredibly realistic results.
• Images of clothes that portray fit, feel and look with high fidelity.
…Would do to online apparel
Virtual vs. Real
About OptiTex Ltd.
• OptiTex is a developer of CAD solutions for the fashion and other sewing based industries
• OptiTex has over 20 years of experience and more than 23,000 active installations worldwide.
Virtual try on Market
• The potential– Apparel sales forecast will reach $40 billion
by 2010 in USA alone.– Online clothing is showing the highest e-
commerce growth rate (25%).
• The challenge– Buyers cannot validate fit– Return rates are high (40%)– Existing Online catalogues are limited to
predefined combinations– Poor shopping experience
The Solution
Required components– Real-time components:
• Accurate, real time physics simulator• Photo realistic rendering capabilities• Synthesis of human body shapes• Virtual try on web application • Ecommerce platform
– Off line components:• Advanced content creation tools• Ecommerce backend
Develop a virtual try-on engine capable of serving any apparel related E-commerce web site.
Ecommerce Platform
EcommerceSystem
Abstract
Manufacturer & Retailer
Online Shopper
Virtual Try On Engine
Synthesis of human body shapes
HeightWeightWaistBustHipsThighShouldersInseamOutseam+more…
Physics
• Cloth is modeled with a discrete set of final elements.– Each element models real forces such
as:• Fabric weight• Stretch resistance• Bending resistance• External forces such as gravity,
friction and wind– Newtonian physics are the governing
equations– Iterative numerical methods are used
to solve
Real Time Physics
• Complex clothing items are modeled with more than 100K polygons.– 50K vertices with 150K variables
• For real time, the entire process is computed at 60 frames per second which translates to 16.6 Milliseconds per frame.
Accelerating Physics
• Simulation bottle necks– Implicit integration and linear system
solver– Collision detection– Normal calculations– Skin & Rig calculations– Rendering
• Highly parallel nature of all of the above– Chose Nvidia™ Cuda as a parallel
development environment.– Porting sequential code to a parallel
environment is a challenge.
Rendering
• Virtual try-on results will be compared with real photographs
• Synthetically reproducing light reflection from complex materials such as human skin (Sub surface scattering) and is a major challenge– Interactive Ray Tracing– Pixel based shaders (GLSL or
CGFX)
Comparisons
Reality Server (Mental Ray)
Thank you,
The OptiTex Team
Recommended