4 ms·

Even the dents on the lens? Texture wouldn't be able to generate actual geometric deformities can it?

• snailmailman 9y ago
  Textures can create the illusion that certain small deformities exist. This is often used for scratches and things that are not always modeled. https://www.marmoset.co/wp-content/uploads/2014/01/lenstextures01.jpg https://www.marmoset.co/wp-content/uploads/2014/01/lenstextu... Scratches like these could sometimes be painted directly onto the texture - or maybe sculpted onto a higher-resolution model and then "baked" down to the lower-resolution model. In this step lots of data from how light bounces off the high-resolution model can be imprinted to a texture and re-used in a lower-resolution model. If you want to learn more the terms to be googling are "normal mapping" and "bump mapping" In this article - If i was to guess; all the pictured spheres are perfectly spherical, and just textured differently. https://www.marmoset.co/posts/physically-based-rendering-and-you-can-too/ https://www.marmoset.co/posts/physically-based-rendering-and... Also - heres an interactive model of the lens: https://www.artstation.com/artwork/kl0A6 https://www.artstation.com/artwork/kl0A6 The "Layers View" button in top right gives you a neat view of the model with/without certain texture layers
  • jordache 9y ago
    not talking about bump mapping. Talking about the dents on the lens' filter silver filter ring. I doubt it was modeled. https://www.blender.org/wp-content/uploads/2017/08/camera_pbr_demo_cycles.jpg https://www.blender.org/wp-content/uploads/2017/08/camera_pb...
    • Zelizz 9y ago
      That can be done pretty easily with adaptive subdivision and displacement mapping. You could also just create a super high-poly mesh manually and paint in the dents.
• a_e_k 9y ago
  Sure. That's called displacement mapping. Fairly ubiquitous in high-end renderers.