Welcome to Dr. Steven Sahyun's Stone AR Objects

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3D AR Stone Objects


This page displays several stone objects found in the Santa Barbara area from a private collection. These objects were scanned by Dr. Steven Sahyun.


These mortars and metates, had been collected by Charles Valde who volunteered with David Banks Rogers on site excavations. In Dr. Rogers' "Prehistoric Man of the Santa Barbara Coast" it appears that Rogers' primary sites of investigation in the period between 1925 (when Dr. Rogers began work in Santa Barbara) and 1928 were along the Santa Barbara Channel coast from Rincon Point, through the city itself, Goleta Valley and up the Gaviota Coast at least far as Arroyo Hondo. He reports recovering a number of metates from Refugio Canyon and Refugio Beach sites which is the most likely point of origin for these items. Dr. Rogers identifies such stone metates uniquely with what he calls the "Oak Grove People" i.e. >5000 years BP, which modern anthropologists would now identify as the early Holocene period in the evolution of Chumash culture.

Dr. Mel Sahyun


Learn about Chumash culture through:

Santa Ynez Chumash Museum and Cultural Center and the Chumash Indian Museum


Please use the navigation bar on the left or choose from the table below to view different objects.


Table of Chumash AR Objects


mortar 01
image of mortar carving
mortar 02
image of metate carving
metate 01
image of metate carving
metate 02


How These Items Were Created

The objects were scanned using Apple's Reality Composer for iPad on an iPad Pro to create USDZ VR object files.

These items are then converted to GLB format using a stand alone program or an on-line converter. There are several available. For these models, I used the FileStar* conversion program or the on-line site ASPOSE

The objects are displayed in the pages usingModel-Viewer and the Google .js source api.

NOTE: On iOS devices, you should be able to use the augmented reality (AR) feature from the icon at the lower right of the object to view the item. Then, Allow to Open the 3D model to view the AR object.

For comments on webpage: sahyuns@uww.edu.
This page is © Copyright 2025 Steven Sahyun
Last updated: August 11, 2025 by SCS.
URL: http://sahyun.net

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