I've been working on a Three.js project where I created a rotating plane. However, I encountered an issue where the plane doesn't display half of the time. To better illustrate this problem, I have created a demonstration in this fiddle.
I've been working on a Three.js project where I created a rotating plane. However, I encountered an issue where the plane doesn't display half of the time. To better illustrate this problem, I have created a demonstration in this fiddle.
Take note that there have been some changes in Three.js revision r50. To render both sides of a plane, you can now use the side property on the Material like so:
plane.material.side = THREE.DoubleSide;
For further information, refer to this link.
The reason the object is not visible is because the backface of the plane is not rendered by default. To understand this concept better, you can read about backface-culling.
However, in Three.js there is a simple way to render backfaces.
In Three.js version r49 and below:
You just need to set the doubleSided property of your plane object to true.
plane.doubleSided = true;
For newer versions - r50 and up
In newer versions, the property has been moved from the Object3D object to the Material object. So you would need to set it differently like this:
plane.material.side = THREE.DoubleSide;
I have also made edits to your fiddle to demonstrate this: http://jsfiddle.net/VsWb9/1084/
This fiddle uses a version of Three.js newer than r50, with the property being set on line 35.
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