But I think you are missing one of the many advantages of BIM: model
(draw)it once, use it everywhere AND have it always up to date. BIM is
all about making your data work harder for you. In my office the same
exact model is used for design, CD's, and presentation renderings.
The rendering speed issue has more to do with outdated and somewhat
obsolete rendering technology currently embedded in Revit (accurender3)
than with the amount of data in the model. Using today's advanced
rendering technologys (vray, brazil, etc), and the rapid advances in
hardware, the amount of polygon simply does not matter as much. We
render all of our Revit models in viz with Vray Advanced, rendering
times are a tiny fraction of what the would be using accurender, and the
quality is exponentially better. What's even more exciting is that there
is a company is working a Revit to Vray plug-in right now! I've
attached a few examples of renderings I have done of our Revit models.
Is there more data that if just created for presentation purposes? Of
course, but that hassle of maintaining two unconnected models far
outweighs any slow down in rendering time. Think about how much a pain
it is the change the model as the cd's change. Plus there are ways of
only rendering what you need for a particular view, such as scope boxes,
worksets, section boxes, clipping planes, etc, you just have to look at
the program.
my 2c,
Z
johnsonwwd wrote:
> The speed will be a longlasting issue for Revit as a result of BIM. Rendering speed in Revit is horrible since the model is just not for graphic presentation purposes. I made professional renderings out of 3ds 2.0 till 3ds MAX 6 and I never had to bring so much detail into my models. I think Autodesk wants too much out of this product and is ignoring the usability issue. As an architect having done both 3D renderings and CDs, I think Revit is good for making CDs, but does Autodesk really think professional 3D artists would use Revit model for their renderings? Give me a break.
> I remember clearly what my professor told me when I was a graduate student - "Stay focused, and stay focused."