DNA Shape in Blender, using Modifiers
Creating DNA strands in Blender is simpler than it seems. All you need is a cube, a curve, and two powerful modifiers. Follow, these straightforward steps to model a DNA-like helix using basic tools.
Step 1: Start with the Cube
Select the default cube, enter Edit Mode, scale it down, and adjust its shape. This will serve as the DNA strands.
Step 2: Add a Curve
Press Shift + A, go to Curve > Path, and add it to the scene. In Edit Mode, rotate the curve using the R key.
Step 3: Set Up the Array Modifier
Select the cube, and go to the Modifiers tab to add an Array Modifier. Change the Fit Type to “Fit Curve” and select the path you added in the Curve field. Change the relative offset value from the x-axis to the z-axis. Now, the cube will automatically duplicate along the length of the curve.
Step 4: Apply the Curve Modifier
Next, add a Curve Modifier to the same cube. Set the Object to the path curve and change the axis from x to z. You should now see the cube array following the shape of the path.
Step 5: Create the DNA Twist
To give the structure a DNA-like twist, select the path curve and enter Edit Mode. Select all control points by pressing A, then start tilting them in the transform options. Tilt them evenly to create the familiar helical shape.
And that’s it! You now have basic DNA strands created using Blender’s modifiers. This method requires no sculpting and no complex geometry.
Watch the Tutorial: https://youtube.com/shorts/bpRtzTiy2Hs
Don’t forget to check out our YouTube Short Tutorial on this exact technique!
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Article by Padmasri