Some technology previews are one-shot affairs. A team posts a build, gets some feedback, ends the technology preview, and decides what to do next based on the feedback. Others, like Project Memento, incrementally improve the technology based on the feedback.
Project Memento is our free Autodesk Labs technology preview of an end-to-end solution for converting any reality capture input (photos, scans) into high quality 3D meshes that can be cleaned up, fixed, and optimized for: web and mobile experiences, further digital use, or fabrication. Yesterday I received a build from the team and posted it for download from the project.
Technology preview champion, Tatjana Dambazova, summarized what's in this new build.
EXPORT VIDEO FROM PROJECT MEMENTO
You asked and we listened! You can now export a Project Memento model in a multi resolution (720p, 1080p, and 4K resolutions) movie format (.AVI) in two ways:
- Automated turntable
- Video with key-frames. This key-frame animation setup is a first implementation and relatively basic, but you can already make really great animations by orienting the model in a certain position, clicking on the Key-frame button, then again orienting or zooming the model in the next position and again clicking the Key-frame button and so on. Be careful with the settings and the length of the video. As we don't yet do compression, they can quickly become huge files ?! A lot more control to come here, but hey, a great first step!
You can perform a difference analysis between two meshes. Again, this is phase one of a first base implementation. The use case for this functionality is for monitoring change of objects and environments over time (just like the young scientist Sly Lee wants to do with the corals he captures under water so that he can, over time tell if they shrink or grow, see: thehydro.us) but you can also validate / inspect the difference between a CAD model and a digitized 3D print of it and see the difference, as in the example of my colleague friend Emmanuel Galo who is equipping his own kite with a gimbal so that he can use it to fly a GoPro and wants to know if the 3D printed object is of a good accuracy!
To make a diff analysis: load a mesh, select the 'Analyze the difference between two models' button from the 'Analyze' group of tools, load a second mesh, (press twice the key A on the keyboard for better viewing of the mesh). Now set the Range steps and apply them (that would be the increments of units in which you want to see the diff analysis, and the slider that will define from which to which value do you want to monitor the positive and negative deviations).
SET COORDINATE SYSTEM
We are still investigating the best ways to set a coordinate system that can be clear to 'non-CAD-savvy' users. In this release you can set or change a coordinate system at any time and that in two ways:
- by defining two points on a base of a model to set the X axis and second click to set the orientation of Y/Z. or
- by simply orienting the model in a certain orientation and selecting the ‘Use Current View.'
In this build we also gave you a control to Toggle the upper vector axis so that the exported models come oriented correctly in other products that use different 'Up' axis. (Autodesk Maya as example) And by using a secret key D, you can read the coordinates of ANY point on the mesh by moving it around.
Some users found our current navigation a bit awkward, so we now can turn a gimbal on by activating the Orbit button in the navigation bar, on the bottom of the UI or with a 'spacebar' hot-key. You can orbit the model using the three spherical axis and a double click on the sphere in the middle of the gimbal will change/set a new coordinate system.
NEW EXPORT OPTIONS
- No textures: Option to export OBJ without UV coordinates (reduces OBJ file size)
- Re-bake textures: Option to re-bake textures on OBJ export; (previously only available for FBX)
This, next to the 'Preserve texture' are now the three ways in which you can export FBX or OBJ for further downstream use of the generated models from reality. By the way, the 'Rebake textures' option is the old "Best geometry" option.
ARTEC 3D SCANNER support
This is stage two of our implementation.
- In the first implementation of the Artec scanners, the Eva implementation was stable, but we had issues with compatibility with Spider. With this release we are moving one step forward: we Improved the compatibility and bug fixes for the Artec Spider and
- We now support Multi-sweep scanning. What that means is that you can now scan an object in multiple movements. This implementation still doesn't support moving the object around for scanning all 360 sides of it — the object must remain stationary.
- 'Autodesk A360 Projects' grid is now re-sizable.
- Project thumbnails no longer get cleared away every time Project Memento starts.
Incremental improvement is alive in the lab.