Tips on flipping a texture in Three.js along the horizontal axis

Currently developing a 360 viewer with textures contained within a cylinder. Encountering an issue where textures are appearing horizontally inverted.

Although I am aware of the texture.flipY option, I have not been able to locate a texture.flipX functionality in the source code.

Interested in insights on how to horizontally flip a texture or along the x-axis directly within the code (excluding usage of an image editor).

Answer №1

If you want to mirror a texture horizontally, try the steps below:

texture.wrapS = THREE.RepeatWrapping;
texture.repeat.x = - 1;

Version: three.js r.147

Answer №2

Surprisingly, solving the problem was simpler than expected.

rectangle.rotate.x = 180;

Also, make sure to include

texture.type = THREE.DoubleSide;

Answer №3

While it may appear excessive, a clever approach could involve rotating the object 180 degrees around its center and then flipping it:

object.center = new THREE.Vector2(0.5, 0.5);
object.rotation = Math.PI;
object.flipY = false;

Answer №4

To achieve a different outcome, consider altering the shape. When using cylinder geometry, you can define the thetaStart and thetaLength for the section of the cylinder you wish to display. Typically, a positive angle is selected, such as thetaLength>0. However, if you input thetaStart + thetaLength and -thetaLength into CylinderBufferGeometry, the cylinder will be drawn in a clockwise direction instead of counter-clockwise, with all face normals pointing inward. This eliminates the need to reverse the texture orientation.

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