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Understanding Texel Density in Textures

Aug 19, 2024

Notes on Texture Resolution and Texel Density

Introduction

  • Discussion on creating multiple angle shots for a young shop project.
  • Encountered issues with blurred textures.
  • Focused on rendering close-ups of objects with good texture resolution.

Key Concepts

  • Texel Density:
    • A crucial term learned during the project.
    • Affects texture resolution based on UV map usage.
    • Higher Texel density = more resolution in texture.

Problem-Solving

  • Utilized Texel Density Check add-on in Blender to:
    • Select preferred Texel density.
    • Ensure consistent texture quality across all objects.
  • Importance of filling UV map space to improve texture resolution.

Common Misunderstandings

  • Texture Quality vs. Resolution:
    • 4k textures can still yield poor resolution if UV map space is misused.
    • Proper UV mapping leads to better Texel density and texture quality.

Visual Comparison

  • Example images illustrate:
    • Low resolution texture on the right vs. high resolution on the left.

Usage in Industry

  • Texel density is commonly used in:
    • Video games
    • Films
  • General guidelines for Texel density based on camera distance:
    • Low density for faraway shots (e.g., RTS cameras)
    • Medium density for third-person views (e.g., Dark Souls)
    • High density for first-person shooters.

Implementation in Blender

  1. Installation of Texel Density Checker add-on (free on Gumroad by Ivan Baskov).
  2. Choosing Texture Size:
    • Start with 4k textures.
    • Experiment with different densities, aiming for the highest Texel density that fits within the chosen texture size.
  3. UV Mapping:
    • Join multiple objects in the same UV map; e.g., seven UV maps used in this project.
    • Address common UV mapping problems:
      • If an object doesn't fit, add more seams.
      • If there is unused area, consider downgrading texture size (e.g., from 4k to 2k), but keep the same Texel density.
  4. Naming Convention:
    • Rename objects to include their respective map sizes.

Conclusion

  • Encouragement to explore more on Texel density through linked tutorials and related project videos.
  • Expressed gratitude for viewership.