Case Study | Deadly Head-on Collision in Vermont

Case Study | Deadly Head-on Collision in Vermont

Vermont State Police Crash Reconstruction Team used Virtual CRASH software to produce a key demonstrative aid used to illustrate accident reconstruction analysis to the jury during a high-profile murder trial that received national attention.

Summer 2019 Software Update

Summer 2019 Software Update

It’s time for the Summer 2019 Software Update! With this update, users have more options to align point cloud data, point array data (from total stations or GPS based measuring devices), and aerial images.

Data Alignment in Virtual CRASH

Data Alignment in Virtual CRASH

With the upcoming 2019 Summer Update, Virtual CRASH 4 users will have more ways to align data in Virtual CRASH. In this post, we’ll review the ways users can align aerial imagery, points, and point clouds. With this update, users will have the following methods to import and align data…

Spring 2019 Software Update

Spring 2019 Software Update

Spring is here, and it’s time for the 2019 Spring Software Update! Read below to learn what’s new. We bring you these updates free of charge for being part of the Virtual CRASH family!

Winter 2019 Software Update

Winter 2019 Software Update

Winter 2019 brings the polar vortex and new updates for Virtual CRASH 4. As always, Virtual CRASH updates are free! Read below to learn more.

Importing Very Large Photogrammetric Data Sets into Virtual CRASH

Importing Very Large Photogrammetric Data Sets into Virtual CRASH

The combination of Virtual Crash and photogrammetric software such as Pix4D has become a powerful tool in the crash reconstruction arena when used with small Unmanned Aerial Systems (sUAS), a laser scanner, or a combination of the two. For the purposes of this post, we will discuss working with large data sets collected with aerial platforms and the use of Pix4D in combination with Virtual Crash 4.

Restraining Objects

Restraining Objects

In Virtual CRASH 3 and 4, it’s possible to restrain the motion of objects by strategically using joints or the rope tool. In this post we’ll review different ways objects can be restrained, including multibodies.

Building a Highway Overpass

Building a Highway Overpass

Virtual CRASH allows users to easily create 3D environments within which vehicles can travel. Occasionally it’s necessary to build overpasses for simulations and animations. In this guest post, the reader is shown how to create a simple overpass using an extrusion object. 

Fall 2018 Software Update

Fall 2018 Software Update

At Virtual CRASH, we love our users. As always, we’ve listened to your feedback and suggestions; we have included many of your suggestions into our new Fall 2018 Software Update. This free update includes new features, improvements to existing features, and improvements to our user interface.

Merged and Reverse Videos

Merged and Reverse Videos

Occasionally it can be useful to play videos in reverse. Visually, this can help the viewer see certain details a bit more clearly, such as a pedestrian’s head contacting the A pillar in a Virtual CRASH generated pedestrian impact animation, as the video scrubs backward and forward in time. In this guest post, the process for making merged and reverse videos is reviewed. 

Choosing a Video Codec

Choosing a Video Codec

Choosing which codec to use when creating your Virtual CRASH animation can be an important decision when generating your visual aids. In this guest post, the pros and cons of various video codecs are reviewed.

"Paint" with Point Clouds

"Paint" with Point Clouds

In this post, we’ll discuss how to cover up gaps in point clouds or areas of low density. Gaps can occur either because of lack of coverage in the original point cloud dataset or because of the “remove points” feature of the Easy Surface Builder tool.

New Possibilities with the Path Animation Tool

New Possibilities with the Path Animation Tool

With Virtual CRASH 4, you have the option to prescribe the exact trajectories, orientations, and speeds various objects will take as they move through the environment. The best part is, the tool is not limited to vehicles. You can animate any rigid body object, including multibody objects. In this post we’ll review how to use the path animation tool to create a walking multibody as well as a few other use cases.

Building Complex Systems with Joint Tools

Building Complex Systems with Joint Tools

Both Virtual CRASH 3 and Virtual CRASH 4 come with a number of joints which can be used to connect rigid body objects together in various ways. You can even make joints articulate. Joints can be used in a number of ways, from creating a simulation of a broken streetlamp post to simulating a rollover accident. In this blog post we review the various joint types. To access the joints, simply go to the Create > Physics menu, or use the toolbar shown below.

Importing Scenes from IMS Map360

Importing Scenes from IMS Map360

Importing diagrams created with IMS Map360 is easy in Virtual CRASH 4. In this post we'll show the typical workflow to export a line drawing and point cloud from IMS Map360 to Virtual CRASH 4.

Practice with Path Animations | Part 2

Practice with Path Animations | Part 2

In this post, we’re going to review working in forward time. Our objective in this exercise is to set up a t-bone crash using forward time evaluation. 

Creating Environments with Drone Data

Creating Environments with Drone Data

In Virtual CRASH 3 or 4, users can import aerial photographs and scale diagrams in nearly any image format, including .tif (or .tiff) format. You can find more information on importing and scaling images in Chapter 9 of the User’s Guide. When importing images from any source, remember Virtual CRASH assumes a single pixel is 1 cm x 1 cm in physical size, so in most cases, the Virtual CRASH scale tool is needed to set the scale between two reference points that are visible in the photo or diagram.

Practice with Path Animations | Part 1

Practice with Path Animations | Part 1

The path animation tool is a great way to create fast visual aids for your case without the need to optimize a simulation scenario. Using the path animation feature, vehicles paths and kinematic sequences are predetermined without using the time-forward kinetic simulator. In this post, we’ll review some of the features and functionality of the path animation tool.