Over the past week, we have delved deeper into the world of 3D modeling. We have explored programs such as CityEngine, with its perceptual generation and we have toyed with photogrammetry programs such as Photoscan. After experiencing the two new types of modeling options and remembering experiences with simple programs such as SketchUp there are a few quick questions that come to mind. What are the pros and cons of each of these options? What is the best use of each of these different approaches?
Procedural modeling?
Pros
Procedural modeling is best used for the creation of Citys and towns in which high detail is not required. All that one needs is to create a starting code for its instructions on how to model each of the points provided. Once the program his been created (may take some time) all that one needs to do enter the data and the software does the work.
This is good when you need to model a lot of objects with relatively similar appearance.
Cons
Lack of detail. All the buildings will come out looking the same a relatively flat in appearance. the uniform structure caused by the modeling engine. Bad at detail and historical accuracy
Photogrammetry?
Pros
Easy to Create. This process creates a highly realistic and authentic replica of the original item. This system is also easy and fast to use making it fantastic for museum collections or other objects with easy access.
Cons
Only useable if you have unobstructed access to the object. It does not work for items that no longer exist or you wish to reproduce in a different state then they are now.
Modeling?
Pros
Authentic replication of a product. The original object does not need to still exist.
Cons
Time-consuming. Can take days to create even one project in high detail.
Examination of existing project, Marie Saldana
Marie Saldana’s Rome project features a fantastic example of procedural modeling from computer code. The Roman city through this project can be fully viewed and respected in awe as a whole. The sense of scale expressed in this project is also impressive. Where the project falls short however is in its detail, most of the building feel flat and without variation. This flatness was to be expected as it was all modeled by a computer using the same code for each building.
