3D Modeling FoundationsGrid, Axes, and Helpers
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3D Modeling Foundations

Course progress0/15
1Introduction to 3D
  • What is 3D Modeling?
  • Real-World Applications
  • The Coordinate System
  • Your First 3D Object
2Navigating 3D Space
  • Viewport Navigation
  • Grid, Axes, and Helpers
  • Navigate and Position
3Basic Shapes
  • Primitive Shapes
  • Transforming Objects
  • Naming and Organizing
  • Build a Simple Object
4Materials & Lighting
  • Understanding Materials
  • Lighting Basics
  • Apply Materials
5Mini Project
  • Mini Project: Build a Desk Scene

3D Modeling Foundations

Course progress0/15
1Introduction to 3D
  • What is 3D Modeling?
  • Real-World Applications
  • The Coordinate System
  • Your First 3D Object
2Navigating 3D Space
  • Viewport Navigation
  • Grid, Axes, and Helpers
  • Navigate and Position
3Basic Shapes
  • Primitive Shapes
  • Transforming Objects
  • Naming and Organizing
  • Build a Simple Object
4Materials & Lighting
  • Understanding Materials
  • Lighting Basics
  • Apply Materials
5Mini Project
  • Mini Project: Build a Desk Scene

Visual Helpers

Grid and Helpers
Visual aids in the 3D viewport

The editor provides visual aids to help you work precisely.

The Grid

The grid represents the ground plane (Y=0):

  • Each small square = 1 unit

  • Major lines every 5 units

  • Extends infinitely (fades at edges)

Toggle the grid with the Grid button in the toolbar.

Tip
The grid is your friend! Use it to judge distances and ensure objects are properly aligned with each other.

The Axes Helper

The colored axes show direction:

  • 🔴 Red = X axis (left/right)

  • 🟢 Green = Y axis (up/down)

  • 🔵 Blue = Z axis (front/back)

Toggle axes with the Axes button.

Transform Gizmo

When an object is selected, you'll see the transform gizmo:

  • Colored arrows for moving along axes

  • Rotation rings or scale handles (depending on mode)

  • Drag these to transform the object

Info
The gizmo colors match the axes: Red=X, Green=Y, Blue=Z. This color coding is consistent across almost all 3D software!

Snapping

Enable snapping to align objects to grid:

  • Click the magnet icon in the toolbar

  • Objects will snap to 0.5 unit increments

  • Great for precise positioning

Note
Snapping is especially useful when building scenes with multiple objects that need to align perfectly.

Selection Highlight

Selected objects show:

  • Blue bounding box outline

  • Corner indicators

  • Transform gizmo for manipulation