Inspectra BIM 1.1.0 – Release notes 

What has changed?

Inspectra BIM 1.1.0 is out. This one came almost entirely from user reports — the kind that start with “is it supposed to do that?” — so it is a release about models that would not open, tools that would not cooperate, and scenes that fell apart on the way to a colleague.

Work Area — crop the scene to what you are working on

Infrastructure scenes are mostly context. You load kilometres of terrain, a full corridor scan and an alignment, all to work on one bridge abutment. Hiding the surroundings by hand is tedious, and it undoes itself the moment you load another file.

Work Area (Home tab) is a saved crop box. Draw it once with the section-box handles, approve it, give it a name — and everything outside it disappears until you switch it off. It trims IFC models, point clouds, terrain, textured meshes and alignments alike, and it keeps trimming: files loaded afterwards arrive already cropped.

A few details that matter in practice:

• No box, no cut edges — an active Work Area is invisible. It is a working extent, not a section, so it does not clutter the view or add contour lines you did not ask for.
• Ordinary sections still work inside it — you can cut a normal section within your Work Area and delete it again, and the crop is still there underneath.
• It travels in the .ins scene file — send the scene to a colleague and they open the same fragment. Work areas are stored per scene and you can keep several and switch between them.

The section box itself gained something along the way: a rotation handle on its top face, so the box can be turned in plan to follow a skewed structure instead of being locked to the world axes. All box handles are slightly larger now, which makes them easier to grab.

Large IFC models open in seconds

A user sent us a 153 MB IFC 4.3 road model that took over ten minutes to open. Long enough that he cancelled it after two seconds, assuming the application had frozen.

It turned out most of that time was spent on nothing. Bodies stored as tessellated meshes are already finished geometry — a list of points and triangles — but they were still being pushed through the full geometry kernel, which copied them at roughly a fiftieth of the speed of simply reading them. A road terrain in that file cost 95 seconds on its own. On top of that, the kernel was being asked to build alignment curves that the viewer then discarded.

The same file now opens in about 15 seconds, with identical geometry, colours and transparency — we verified that by loading nine models both ways and comparing every element.

Two related loading problems went with it:

• IFC 4.3 alignments whose centreline vertices came back out of order no longer draw as a fan of lines sweeping across the model. The file states how long the axis is, and a centreline that disagrees is rebuilt from the alignment’s own geometry.
• Solids that mix boolean and ordinary shapes were quietly arriving without their clipped parts — reported as a success, with nothing in the log. Those elements are now checked against the reference kernel and re-cut when something is missing.

Snapping that lands where you point

Placing a measurement vertex on IFC geometry was, in one user’s words, very hard. Measuring it turned out to be worse than it sounded: on a typical building model roughly half of clicks on visible geometry were being refused, and on the road model two thirds.

The cause was almost funny. The snap ball follows your cursor, and the check that asks “is anything actually drawn here?” was reading a two-pixel window — entirely covered by the ball itself. Hovering placed the ball; the ball then blocked the click that was supposed to follow.

Point clouds and IFC geometry now have properly separate depth handling, because they use depth for different things: for a scan the depth buffer is the data, while for IFC it is only a witness for a sanity check — and a pixel hidden behind the cursor ball is not evidence of empty space. On top of that, the picker now gets a spatial index, which took a single hover on a dense terrain chunk from 76 ms down to 0.17 ms.

The result: snapping lands on model geometry every time on both test models, the worst-case delay dropped from 198 ms to 14 ms, and the micro-jitter some users noticed at the moment a vertex is placed is gone — the measurement overlays no longer nudge the camera’s depth range as they move.

Scenes that arrive complete

If you sent an .ins scene to a colleague and their point cloud never appeared, this was why: cloud and mesh paths were stored as full paths pointing at your own drive.

They are now written relative to the scene file, so a project folder that travels stays intact. Scenes you have already sent are helped too — when a recorded path is missing, Inspectra looks for the same folder layout next to the .ins and picks the file up there.

Point clouds and drawings

• Colourless LAS and LAZ scans open on the elevation ramp instead of one flat colour. A scan without RGB has nothing to show in RGB mode, and a solid silhouette hides the very shape you opened the file for. If another cloud in the scene does have colour, or you picked a mode yourself, nothing changes.
• LAS colour is read from the range the file actually uses. Many producers write 8-bit values into the 16-bit fields the specification defines, and those clouds were loading completely black. The same class of problem was fixed for XYZ, PTX and E57 — including E57 files with wide colour channels, which previously failed to load at all.
• Longitudinal sections now have a marker in the 3D scene, like every other drawing — and it follows the alignment rather than cutting a straight line between the two ends. Click it to open its properties and adjust the chainage range, view depth or viewing side.
• Alignment sections can be placed at a chainage you type. Clicking the axis fills the station in, and you can correct it to the exact value you need — a pier axis, a chainage from the drawing schedule — instead of hunting for the right pixel.
• Drawings can be filled with what lies behind the cut plane (Drawing Settings, off by default). Useful when the section passes through vegetation or scattered geometry and the drawing would otherwise be full of holes.

Smaller things

• Clear Scene asks first. It was the only destructive command with no confirmation, sitting on a toolbar tile and on Ctrl+W — a shortcut that closes a tab in most other software, not a day’s work. It now offers to save the scene on the way out, and stays silent when there is nothing to lose.
• Faces no longer disappear while you orbit. The performance shortcut that hid back-facing surfaces during camera movement assumed every exported solid has correct normals. Real exports do not.
• Performance statistics can be copied to the clipboard, so a support report no longer needs a screenshot.
• The first clash run no longer freezes the window for a moment while its calculation kernel compiles.

Do pobrania

Inspectra BIM 1.1.0 runs on Windows 10 and 11. If you are on 0.11.0 or newer, the application will offer the update itself and install it in one click; otherwise download it from the site — the installer upgrades in place and keeps your settings and licence.

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Almost everything above started as a message from someone using Inspectra on a real project — a file that would not open, a tool that fought back, a scene that arrived incomplete. Please keep sending them.