Realistic Chalkboard Text Rendering

A realistic photo of a classroom blackboard covered with handwritten chalk text, with natural daylight and authentic chalk texture. The image looks like it was shot on a phone and presents the full requested text clearly on the board.

The {argument name="文字内容" default="full text of the Memorial to the Throne"} handwritten on the classroom blackboard, realistic chalk handwriting, shot with {argument name="光照" default="a sunny day"} using {argument name="拍摄设备" default="an iPhone"}