Petroglyph V12 Khatm Al Melaha, Kalba, Sharjah

Natural Version with Paint, Petroglyph V12 Khatm Al Melaha, Kalba, Sharjah. One Syrian Wild Ass and one Nubian Ibex. Likely Neolithic or earlier. [Fossati 2019 Messages from the Past: Rock Art of the Al-Hajar Mountains (Oman)]. Khatm Al Melaha is an archaeological site on the coast of the Oman Sea near Kalba in Sharjah, UAE. It is one of the largest rock art sites in the UAE. Over 175 stones with petroglyphs were documented and close to 400 motifs were identified. Every rock with a glyph was given an ID number and a GPS coordinate. In total 25455 terrestrial photographs, 5244 drone photographs, 44 drone videos, and 182 GPS points (+/- 1cm) were done in a single day. Petroglyphs were identified using Radiance Scaling in Meshlab, materials lighting in Substance Painter, and by changing conditions in Sketchfab. Some carvings were completely invisible when viewing. Drawings were done only when a line could be identified using one of these techniques. Reality Capture and Substance Painter Source: Objaverse 1.0 / Sketchfab彩绘自然版，哈塔姆阿尔梅拉哈（Khatm Al Melaha）卡尔巴岩画V12，沙迦。该岩画描绘有一头叙利亚野驴与一头努比亚羱羊，年代或可追溯至新石器时代及更早。[Fossati, 2019，《来自往昔的讯息：哈杰尔山脉（阿曼）岩画》] 哈塔姆阿尔梅拉哈是阿联酋沙迦卡尔巴附近阿曼海沿岸的一处考古遗址，亦是阿联酋境内规模最大的岩画遗址之一。 本次共记录175余块带有岩刻（petroglyphs）的石块，识别出近400处纹饰。每一块带有岩刻的岩石均被赋予唯一编号与GPS坐标。单日累计采集了25455张地面实拍照片、5244张无人机航拍照片、44段无人机航拍视频，以及182个精度达±1cm的GPS测点。 本次岩刻识别借助MeshLab中的辐射缩放（Radiance Scaling）功能、Substance Painter的材质光照模拟工具，以及Sketchfab的环境参数调节功能完成。部分岩刻在常规观测视角下完全不可见，仅当通过上述任一技术可识别出轮廓线条时，方才开展绘图标注工作。 采用Reality Capture与Substance Painter进行相关处理 数据来源：Objaverse 1.0 / Sketchfab