Table 8 Challenges in the 3D reconstruction process mentioned by each participant

From: Parametric 3D reconstructing and interpreting iconographic evidence: case of the Song Dynasty architectural massing typologies

Painting

Name of the painting

Participant

Academic background

Challenges in the 3D reconstruction process mentioned by the participant

1

the western wall murals of Yanshan Temple in Fanzhi, Shanxi (山西繁峙岩山寺西壁壁画)

A

Bachelor student in architecture design with basic knowledge of Rhino and Grasshopper modelling, and Chinese architecture theory

• It took more time to model the building volumes without corresponding algorithms.

• Much more efficient when there’s already a 3D reconstruction proposal conducted by previous scholars.

2

Autumn Scenery of Rivers and Mountains (江山秋色图)

B

Bachelor student in architecture design with basic knowledge of Rhino and Grasshopper modelling, and Chinese architecture theory

• It was quite easy for just choosing within the given parameters, while more time was spent on the iteration process of setting the control points/lines for each volume, adjusting relative positions, changing input parameters, in order to get closer to the original painting scenes.

• It is difficult to automatically fit the topographical setting shown in the paintings, which requires long-time manual adjustment.

3

Delicate Residence at Songdeng (松磴精庐图)

4

Incense Burning Ceremony (焚香祝圣图)

C

Master student in history with interest in Chinese traditional architecture, and with limited knowledge in Grasshopper modelling and no experience in Rhino modelling without Grasshopper

• Unable to model those building volumes without corresponding algorithms.

• The undefined conjunction point modelling varied from different paintings, which the current algorithm is insufficient to address these characteristics and is dependent on manual adjustment.

• The algorithms perform better in 3D reconstruction from textual and archaeological information, allowing more comparisons of parameter combinations.

5

Palace banquet (乞巧图)

6

Pictures of Auspicious Omens (中兴瑞应图)

7

Eighteen Songs of a Nomad Flut (胡笳十八拍)

D

Master student in architectural history and theory, with basic knowledge of Rhino and Grasshopper modelling

• The most challenging part lies in the comparison of different 3D reconstruction versions.

• Especially time-consuming to define the relative sizes of connected volumes, choosing between different Cai, and different values of widths and depth.