Orca3D News

Wednesday, October 27, 2010

"Rhino Plug-Ins for Naval Architects" Webinar

On behalf of Orca3D and the ASGVIS team, we'd like to thank those who attended yesterday's webinar, Rhino Plug-Ins for Naval Architects.

The 60-minute webinar explained the benefits of using Orca3D and V-Ray for marine designers.

Larry Leibman, Principal Naval Architect at DRS Defense Solutions, Advanced Marine Technology Center, began the webinar by diving into Orca3D's capabilities for hull design and fairing, hydrostatics and stability, speed/power prediction, and weight and cost tracking using the design of a 26' center console powerboat.

Fernando Rentas Pedrogo of ASGVIS then used that same vessel to demonstrate the V-Ray rendering plug-in for Rhino and its rendering capabilities. He explained material settings, how to create a water surface, positioning of the sun, and tips for blending the rendered image into a photograph; all of which resulted in a powerful 3D, photorealistic image.

If you missed Rhino Plug-Ins for Naval Architects or would like to watch the video recording, you may do so here:  http://www.orca3d.com/support/webinars/2010-10-26Rhino_Plug-Ins_for_Naval_Architects.wmv

Monday, October 25, 2010

Marine Design with T-Splines

Gerard Petersen, of RhinoCentre in the Netherlands, has written an interesting blog post on marine design with Rhino, T-Splines, and Orca3D. T-Spline's flexibility in surface modeling allows for the creation of all sorts of complex shapes, be they hull forms or superstructure, and integration with Orca3D means that you can treat T-Spline surfaces just as you would any Rhino surface, for sections, lines plans, hydrostatic and stability, resistance prediction, or weight and cost tracking. To read Gerard's post, click here: http://rhinocentre.blogspot.com/2010/10/ship-hull-design-with-t-splines-for.html

Wednesday, October 20, 2010

Filleting a Hull/Keel Intersection

Recently, a user asked us for help in the creation of his sailboat model. He posed the question: How does one fair the intersection of a keel and hull?

Certainly, there are multiple ways to do this in Rhino, but here is one way we have found that seems to give good results:

 1) Start with a half-hull of your sailboat model. Here we have used the Orca3D Hull Assistant to create the hull geometry. Then create one side of the keel geometry. In this case we used the Orca3D foil assistant and made sure to uncheck the boxes “Create Both Sides” and (Cap the) “Root” so that we would only get one side of the keel and the top would not be capped since it will be trimmed off anyway. We’ve also placed the keel in the proper longitudinal and vertical positions, ensuring that the keel protrudes through the hull bottom. The details of the hull and keel design are of course up to you! They don’t have to come from the Orca3D assistants. The result is shown below.

2) If you have a connected bulb or a capped tip on the keel, then you will need to explode the keel polysurface into individual surfaces.

3) The keel generated from the Orca3D foil assistant has a flat trailing edge. It is necessary to separate the trailing edge from the rest of the keel foil shape in order to be able to fillet the surfaces. Split the keel surface along an isocurve at the trailing edge crease as shown below (Surface->Surface Edit Tools->Split at Isocurve). NOTE: If you find that you are unable to split the surface, then you will need to decrease your model absolute tolerance. (Tools->Options->Units)

4)      Now, you can use the FilletSrf command to first create a fillet between the main part of the keel and the hull surface and then between the keel trailing edge and the hull surface. You need to set the Extend command option to “No” for the FilletSrf command and of course choose a reasonable radius for the fillet. When you fillet the surfaces, make sure to select the surfaces on the sides that you want to save. The result should look something like the figure below where the keel is shown in red, the hull in blue, and the keel trailing edge in green, and the two fillets in gray.
5) Take a look at the two fillets and notice that at the keel end they do not line up. If this is the case for you it is a simple matter of moving the control points at the keel end of the trailing edge fillet along the keel until they line up with the other fillet.
6) Trim off any remaining length of the trailing edge.

7) Use the Rhino BlendSrf command on the open edges of the two fillets to connect them with a fair curvature continuous surface. You should end up with something like the figure below.

8) Join all three fillet surfaces together and join the trailing edge of the keel back to the keel.

9) Use the fillets to trim the hull surface. You should now see something like the figures below where we have also mirrored the surfaces.

10)      Check the surface normals with the Dir command and correct as necessary so that all normals point outboard. If you wish you can join all surfaces together into a single closed polysurface with no naked edges.

Webinar Rescheduled

Due to the illness of one of the instructors, we regret to inform you that we have to reschedule today's webinar, "Rhino Plug-Ins for Naval Architects" for Tuesday, October 26 at 3:00pm EST. If you had registered for the webinar, you should have received an email from GoToWebinar.Notifications@citrixonline.com confirming this time change and providing a link to login to the webinar. If you have not previously registered, you can do so at https://www2.gotomeeting.com/register/212377227.

The webinar will be recorded. All registrants will receive a link to watch the video recording after the webinar takes place.

We apologize for any inconvenience and hope that you can make the rescheduled webinar next week.

Wednesday, October 13, 2010

50% RhinoMarine-to-Orca3D Upgrade Discount Ends December 31, 2010!

In 2009, the developer of RhinoMarine announced that it was discontinuing sales and support of the product. At the same time, we announced that DRS Defense Solutions, Advanced Marine Technology Center, would step in to provide technical support and replacement Site Keys, through the end of 2010.

To help ease the transition to Orca3D, we've been offering a 50% discount on Orca3D to licensed RhinoMarine users. This discount offer will also expire at the end of 2010. If you're considering moving to Orca3D, now is the time to do it. 
Orca3D, in addition to surpassing the capabilities of RhinoMarine, is actively supported and is being further developed and improved. On-going efforts include stability criteria, a new hull assistant, network licensing, and compatibility with the Rhino 5 WIP (32 and 64-bit). Support is handled on a daily basis, via phone, email, and our forum. Recent comments on our technical support from a survey included:
  • "The support that your company principles have offered over the years is second to none."
  • "Very professional technical support I received from the staff."
  • "The email support has been excellent and I think I got through the learning curve quickly."
We have also developed a translator so that Orca3D can read your RhinoMarine-specific data. You can read more about that in an earlier blog post: http://orca3d.blogspot.com/2010/04/rhinomarine-to-orca3d-translator.html

If you haven't already done so, we encourage you to download Orca3D and give it a try (you won't need to uninstall RhinoMarine). If you have been through the evaluation process before but would like to extend your evaluation, email us at support@orca3d.com for a download link and instructions for receiving an Unlock Key to extend your evaluation.
You must provide proof that you qualify for the transition discount. Valid proof may include any one of the following (if you own a license for RhinoMarine, but for some reason are unable to provide one of the forms of proof above, please contact us to discuss the matter):
  • Screen capture of your RhinoMarine license dialog. From the RhinoMarine menu, select License.
  • Invoice or receipt from your purchase of RhinoMarine
  • Email from your RhinoMarine reseller confirming that they sold RhinoMarine to you
Just provide any of these to us at sales@orca3d.com, and we'll give you a coupon code for the 50% discount. Information on pricing, purchasing on-line, or finding a local reseller can be found here  (if there's a reseller in your area, we prefer that you purchase through them).
As always, please feel free to contact us with any technical or sales questions:
  • sales@orca3d.com 
  • support@orca3d.com
Don't forget; the discount will end on December 31, 2010!

Monday, October 11, 2010

Join us for a joint presentation on Orca3D and V-Ray

Orca3D and V-Ray will team up to present “Rhino Plug-ins for Naval Architects,” an hour long free webinar explaining how naval architects use these two digital tools in the engineering and visualization of watercraft.

Larry Leibman, Principal Naval Architect at DRS Defense Solutions, Advanced Marine Technology Center, will kickoff the session by explaining the benefits of using the Orca3D plug-in to Rhino for hull design and fairing, hydrostatics and stability, resistance prediction, and weight and cost tracking. After a brief introduction, he will give a live demo and attendees may submit questions during the session.

3D Visual Artist Fernando Rentas Pedrogo will then pick up the same 3D model and render it into a photorealistic image using V-Ray. To do this, he’ll explain the basic V-Ray interface that works within Rhino, HDRI, and the V-Ray Sun and Sky system.

Join Orca3D and V-Ray for this free webinar on October 20, 2010 from 3:00pm to 4:00pm EST. All attendees will receive a special discount on Orca3D and V-Ray.
Register for this webinar here.

Friday, October 8, 2010

Using full scale electronic mock-ups to improve design

I recently spoke to Dave Fuller of FullCon Solutions, whose company provides services to designers in various industries who can benefit from full-scale electronic mock-ups of their designs. Yacht design is an obvious application for this technology, and the following images show designer Ward Setzer visualizing his design in The Duke immersive Virtual Environment (DiVE) at Duke University in North Carolina.

This is an excellent example of extracting value from a 3D model, which was the subject of a seminar given by Bruce Hays at the recent IBEX tradeshow in Louisville, Kentucky on September 29th. While building 3D models has a cost, there is tremendous value to be captured by leveraging the model for design review, manufacturing, weight estimating, cost estimating, structural analysis, 3D printed mock-ups, rendering, outsourcing of components as small as canvas and as large as interiors, fitting new parts to existing models, performance analysis, etc.