Hi-Poly Photogrammetry to Low-Poly | Blender Beginner Tutorial
This Blender tutorial will shows you how to transform a high-resolution photogrammetry Building model scan into a low-poly, editable model. Photogrammetry is the process of using images to build 3D model, and it is a potent process for collecting accurate, realistic models of real-world items. However, working with these models in Blender can be challenging and complex, particularly when making modifications or alterations. This Blender tutorial will teach you a simple and quick method on how to cleanup and re-topologies a complex model. A Blender beginner tutorial
With the help of this tutorial, you will learn how to reduce a high-resolution photogrammetry building model into a low-poly model that is much simpler and easy to edit and use. The method outlined in this tutorial will also result not only in a small, game-ready model, but will also retain the fine details of the original hi-res model. We'll go through the fundamentals of utilising Blender to lessen a model's polygon count as well as methods for making the model more suitable for use in real-time.
Additionally, Blender's diffuse and normal map baking will be covered in the tutorial. The process of baking involves transferring high-resolution information from a photogrammetry model to a low-poly one. The low-poly model will appear more realistic since diffuse maps hold the colour information of the model and normal maps store surface data like bumps and grooves.
Anyone interested in low-poly modelling, photogrammetry, or using Blender to reduce hi-poly models should definitely check out this tutorial. It's also excellent for anyone interested in finding out more about how to develop models that are prepared for usage in interactive games or other applications. You will be able to utilise the knowledge you gain from this lesson to easily generate your own building/hard-surface models once you have a firm understanding of how to convert high-resolution photogrammetry models into low-poly models.
CONTENT OF THIS VIDEO TUTORIAL
0:00 Intro
0:30 Importing / Loading 3D Scan in Blender
1:11 Convert to Low-Poly Model
13:20 'Bake' Explanation
14:35 Unwrap Low-Poly Model
20:08 Setting up a Shader (Texture)
23:08 Setting up Blender for Baking
24:11 Baking the Diffuse Texture
25:58 Baking the Normal Map Texture
27:26 Deleting the Hi-Res Model
27:57 Viewing the Baked Model
30:15 Cleanup: Repairing 'Gap' or Holes in Texture
33:46 Adding a Window
34:55 Finishing touches: Bump & Smoothness
39:21 Conclusion
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