Sunday, December 10, 2017

Hannah Barnes - Week 15: Laser Scanning





Concept:
For this project, I decided to build and scan a dragon's egg. The "egg" was made by sticking thumbtacks into a styrofoam egg to create dragon-like scales. I then painted it with gesso so it would scan better. I traveled around campus taking pictures of various spots, and I chose the lake near the residence halls and a grassy area near the admin building as my context photos.

Scanning Process:
I used the NextEngine scanner process to scan the egg. After painting the egg with gesso and adding alignment dots, I scanned the egg standing upright using a 360 shot, then used a single scan for the top and bottom. The top merged fairly easily into the body, but I had difficult getting the bottom to merge correctly. I brought it into Rapidworks to fix the holes and smooth the model. I used Simplify to get the model down to 10k polygons, and then I used Feature Following to get the nurbs version. I liked the low-poly model the best, so I decided to use this for my renders.

Rendering Process:
I pulled my object into Keyshot to figure out lighting, positioning, and the material of the object. I used the perspective match to get the model right, then I customized the sun's position to get the lighting right. I had difficulty getting the shadow to match properly, so I decided to add that in using Photoshop.  I brought both renders into Photoshop for cleaning up. I fixed the color and shadows to make it feel more realistic. For Render 1, I tried to make the egg look like it was partly underwater. For Render 2, I added some of the shadows from the trees onto the egg.



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