u/dfodaro

3DGS scanning a terracotta head with Revopoint POP4

Terracotta is an excellent material for 3D scanning, but the goal of this test was to capture its complex natural texture. Although the piece is non-polychrome, it features a rich surface of red, gray, and black tones resulting entirely from the firing process.

The scanner accurately captured every chromatic and geometric variation, providing the necessary dataset for 3DGS technology. By using 3D Gaussian Splatting, the final output goes beyond traditional meshes, delivering a material realism that stays true to the authentic look of fired clay.

#3DScanning #3DGS #GaussianSplatting #Terracotta #DigitalTwin #Sculpture https://revo.ink/3QSyQy8

3DGS scanning a terracotta head

Terracotta is an excellent material for 3D scanning, but the goal of this test was to capture its complex natural texture. Although the piece is non-polychrome, it features a rich surface of red, gray, and black tones resulting entirely from the firing process.

The 3D scanner, a POP4, accurately captured every chromatic and geometric variation, providing the necessary dataset for 3DGS technology. By using 3D Gaussian Splatting, the final output goes beyond traditional meshes, delivering a material realism that stays true to the authentic look of fired clay.

I recently used the new Revopoint POP 4 for scanning on this commemorative double portrait. The piece is an example of sand casting, and the scan results document the work of the original foundryman. The POP 4 scanner is hybrid technology (laser blu and IR). For this scanning I used Coss Lines Laser mode capturing both the details of the relief and the raw, concave morphology on the back. What impressed me most was the workflow: The design scanner is compact (and light) and allowed to work in total mobility via Wi-Fi, also completely untethered from a PC by using a smartphone app. The result is a clean mesh that record casting marks. A great example of how compact tech is closing the gap in high-end digital preservation.

🚀 Pushing the Revopoint POP4 to the Limit: Laser Mode Showdown! 🚀
I recently put the POP4 through its paces with a challenging subject: a bronze sculpture of the "Head of Young Bacchus." Bronze is notoriously tricky, but I wanted to see exactly how much fine morphology I could capture by pushing the Laser mode settings.
I ran three distinct tests, focusing on the impact of Target Point Distance and, most importantly, the ability to combine Single Line and Cross Lines modes in a single session.

🔍 The Experiment
Here is the breakdown of the three scans:
Bacchus1
Mode: Cross Lines

Target Point Distance: 300 microns

Result: A solid base scan, but the finer textures of the bronze remained somewhat soft.

Bacchus2
Mode: Cross Lines

Target Point Distance: 150 microns

Result: A significant jump in clarity! Halving the point distance definitely brought out more surface character.

Bacchus3 (The "Sweet Spot")
Mode: Single Line + Cross Lines (Combined)

Target Point Distance: 150 microns

Result: This was the clear winner. The detail is much crisper, capturing the intricate morphology that the previous scans missed.

💡 The Takeaway: Hybrid Scanning is King
The real game-changer here is the ability to use Single Line and Cross Lines modes within the same scan session.
While the Cross Lines handle the bulk of the geometry quickly, switching to Single Line allows the POP4 to "dig" into those micro-details and sharp edges of the sculpture. If you are looking to capture museum-grade detail on complex surfaces like bronze, don’t settle for just one mode—use the hybrid approach!

https://revo.ink/3QSyQy8

Preserving History with the Revopoint POP 4!

Another test with the new Revopoint POP 4 on interisting antique object: a decorated bronze
bell.
This piece isn't just metal; it’s covered with a repetitive decorations, a beautiful dark aged patina, and some corrosion crusts that make surface capture interesting test for the POP 4 3D
scanner.

I used the 30-cross blue laser lines mode, which is designed specifically to handle high-
reflectivity and dark surfaces.

The results were amazing:
• Precision: Captured the fine details of the decorations with a single-frame accuracy of
up to 0.03 mm.

• Stability: Even with the "messy" texture of the corrosion, the laser tracking remained
rock-solid at a high frame rate (it can go up to 105 fps!).

• Analysis: After the scan, I moved the model into Revo Measure to take precision of the bell's dimensions for digital archiving.

It’s amazing to see how this hybrid blue laser and infrared tech can bring professional-grade
cultural heritage preservation to a handheld device.

Check out the images of the process!

[effacé]

POP 4 - BETA TESTING -

SCANNING A MOSAIC

I’m currently testing the upcoming

Revopoint POP 4 (an AI-powered

Blue Laser & Infrared

Hybrid Scanner under $1k) and

wanted to share a quick look at what

this hardware can do.

For this test, I scanned an amazing

reproduction of a highly detailed

ancient mosaic from

Jordan.

The Workflow

• Scanner Mode: 30-Cross Blue

Laser Lines

• Tracking: Marker mode

The color in these images is from a

high-res photo overlaid directly onto

the POP 4’s 3D

mesh.

The Results

• Micro-Details: Mosaics are tough

due to the tiny tile variations and

grout lines. The

POP 4 boasts up to 0.03 mm

single-frame accuracy, and it

captured the physical

texture perfectly without smoothing

out the real-world imperfections.

• Silky Smooth Scanning: In

multi-line laser mode, it hits up to

105 fps (with an NVIDIA

GPU). The tracking was incredibly

fluid and completely lag-free.

The crossed blue lasers easily scan

the multicolored the mosaic tiles.

Other Cool Specs

I'm just scratching the surface here.

For its price bracket, it's incredibly

versatile:

• True Hybrid: Includes NIR full-field

& VCSEL structured light, plus a

single-line laser

for deep holes.

• Native Gaussian Splatting:

Converts point clouds/RGB directly

into 1:1 models and

exports to .splat.

• Untethered Scanning: Wi-Fi 6 and

a 5500mAh battery grip (4 hours of

power) mean

you can cast straight to your phone,

no laptop required.

• Outdoor Ready: Handles up to

100,000 lux (bright daylight) in laser

mode.

Let me know what you think of the

mesh quality! I'll be doing more

tests soon