1. 1 PHOTO RENDERING Getting a 3D Effect

2. 2 Introduction  Matt Martin – Sherpa Design, Portland, OR Located in Beautiful Portland, OR near the foot of the St. John’s Bridge 3DP with a ZCorp 510

3. 3 Sherpa Design The Office

4. 4 3D Anaglyphic Image GLASSES ON PLEASE…

5. 5 3D Photo Rendering in NX5  What is it used for?  Basics & Layout  Staging the part for rendering  Render environment setup  Render environment reuse  About showroom environments  Fun with 3D rendering

6. 6 Rendering 101  High Quality Image (HQI)  Flat, Gouraud, & Phong provide limited quality, no texture mapping & the background is truncated to a single color.  Improved & Preview will get to you lighting effects and scattering.  Photo Realistic & Ray Traced is where photo rendering really starts.  Lighting, reflections, texture mapping and shadow effects are present.  Radiosity/FFA provides superior edge definition and is good for subtle shading.  Radiosity is actually a lighting pre-processing setup.  Light is emitted from the scene to the surfaces. Then from all of the surfaces, light is emitted again. This is repeated until the required accuracy is achieved.

7. 7 Adding Realism  Image Based Lighting (IBL)  For ultra-realistic photo rendering affects. IBL is a rendering technique involving a plotted image on a dome or sphere which contains the model. This technique is best used with high dynamic range images (HDRI)  High Dynamic Range Imaging (HDRI)  Set of techniques involving a greater range of exposures (values between light and dark areas) than normal digital photography. Example of three exposures that are combined to create an HDR image

8. 8 HDRI Example HDRI Image as a “Probe” HDRI Image as a “Cross”

9. 9 NX5 Demo  Switch to live demo…  Creating an assembly  Apply materials & textures then render (~15 sec)  Drag & drop a system visualization scene  Basic Scene Editor  Stage floor – new & render (~40 sec)  Apply reflection map  User defined image (jpg, tif, lwi) & render (~1.75 min)  Apply Image Based Lighting (EXR, HDR) & render (~7min) {switch to image vs. rendering}  Extract Scene for reuse  Demonstrate reuse

10. 10 Stereoscopic Imaging  3D images can be achieved by capturing an image from two slightly different viewpoints at the same time, creating two images that look almost identical. OBJECT D D1D1 D 1 =1/30*D Rule applies for 100’

11. 11 Capture 3D Imagery  Capture 3D Imagery for an Anaglyph  Open OHH Pump Anaglyph in Photoshop  Establish camera view in perspective (show camera edit features)  Establish camera distance for the left camera.  Copy left camera to right (& rename)  Transform camera based on equation.  Render left image then right  Save off left & right images  Show Photoshop channel manipulation.

12. 12 Stereoscopic Imaging Types  Stereoscopic photography was invented practically the same time as conventional photography in 1839.  The Holmes reoscope was perfected in 1859 by Oliver Wendell Holmes. These are still in use today and can be found in antique shops around the world.

13. 13 Credits  Thank you to:  Jon Hayden of Sulzer Pumps for providing the model.  Shab Levy of The 3D Center of Art & Photography for mentoring and support. http://www.3dcenter.ushttp://www.3dcenter.us  www.debevec.org for supplying excellent HDR images. www.debevec.org

14. 14 Thank you