Tutorial: Photographic Textures

Ventsim™ 4 introduces photographic texturing, a process where pictures can be overlaid across 3D reference surfaces previously imported into Ventsim™.

Photographic Texturing

Texturing allow photorealistic visualisation of things like surface topography, where both the 3D surface graphics and photographic information can be used to show surface features. Photographic texturing can help with appropriately positioning surface ventilation infrastructure (such as shafts or portals) and can visually assist in presentation by showing where underground mine infrastructure is located in comparison with surface features.

Photographic texturing is easy to do in Ventsim™ 4. Follow these steps.

  1. Import your 3D surface as a reference into Ventsim™ from a suitable CAD or mine planning package.
    Photographic Texturing
  2. Drag and drop a photo file (Ventsim™ supports most formats including JPG, PNG, BMP etc) onto the reference surface in Ventsim™.
    Photographic Texturing
  3. The photo is unlikely to be in the correct position in relation to the 3D reference surface, so it will need to be moved and probably scaled and rotated. Use the Ventsim™ MOVE > Texture Move button.
    Texture Move
    1. Drag the picture texture across the 3D reference until a known photographic point aligns with a known 3D reference point. You can also click once to exactly define the coordinates if you wish.
    2. Centre the screen and the Ventsim™ view point of focus exactly on the known point. Use the middle mouse button option to do this by clicking on the known point.
    3. Finally use the Texture Scale Rotate menu button option (shown above also) to click and drag another known point on the photograph to the correct location on the 3D reference surface. The photo will automatically dynamically rotate and stretch to this location.

Photographic Texturing

That’s it! Your photographic texture is now displayed and aligned correctly in 3D.