Photogrammetry

Follow this page when completing photogrammetry.

Once you have the photogrammetry images generated by Marso, you can complete your normal Photogrammetry Workflow.

For specific tips depending on your photogrammetry software of choice, see Photogrammetry Tips.

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Photogrammetry Checklist

✅ Use the images generated by Marso

Images with names photogrammetry_xxx must be used. You can find these by pressing the Images button when the job is selected.

✅ Ensure most cameras are solved accurately

Poorly solved cameras can lead to artifacts in the material measurement later on. We recommend attempting to re-align any bad camera solves. Cameras that cannot be aligned should be removed from the scene or disabled.

✅ Include any stands or supports in your bounding box

Any geometry that might obstruct a camera's view of the subject should not be removed, but exported separately as a Mesh Mask

✅ Scale the Solved Scene

It is essential that the scene is scaled. The recommended approach is to place two markers at a known distance apart in the scene, and once solve apply the distance constraint.

You can also re-scale with Blender by following the instructions here.

✅ UV Unwrap the subject

A UV Unwrap is required for Marso to export textures. This can be done automatically by the photogrammetry software by running the texturing process, or Manually if you prefer.

For optimal UVs we recommend generating the texture at the same resolution or lower resolution than the textures you wish to output from Marso.

A UV Unwrap at higher resolution than the final textures may cause artifacts.

✅ Use the Export Configuration

For Reality capture we provide Export Configurations that can be loaded to ensure the export settings are correct:

• Reality Capture - Alembic Export
• Reality Capture - ST Map

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A very high number of polygons in the mesh may cause Marso to exceed the available VRAM on your system. If this occurs, simplify the mesh and reattempt the process.

Marso can produce highly detailed normals, even on medium to low poly meshes.

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