There are a lot of programs out there that will allow you to create 3D models and bring your images to life and allow you to see a virtual version of your design. Some of these programs are very detailed and will include the ability for you to create an arch in your design while others will not include this as part of their program. Often times the reason for this is due to the differences in uses for the program. Many people that are looking to use this type of program for their home or other type of design will not need the ability to create arches. Professional builders and architects will need this ability to include in their designs.
One of the biggest advantages to this is the fact that things like the Eiffel Tower and many of the older churches would have never been as gorgeous as they turned out had it not been the ability to include arches in their designs. For a designer of buildings, this is a very important aspect that should be looked at closely and taken into account. If you are simply just using this as a way to help design your addition to your house, then you may not care as much if the program offers arch modeling. Also you will pay more for a program that offers this included as it does involve extra features having to be included.
Taking your time to look at the types of 3D modeling programs that are out there will give you the chance to make a decision that will be right for you and your modeling needs. This is a big decision to make and one that will be valuable for you down the road. 3D modeling is not just for professionals anymore as more and more people are wanting to add arches to their home design.