Enzo Posted October 27, 2018 Share Posted October 27, 2018 I'm trying to make a rotation vertically and horizontally around a point at the same time but I'm not able to combine both. I have this formula for the horizontal rotation: camera.position.x = x * Math.cos(inc) + z * Math.sin(inc) camera.position.z = z * Math.cos(inc) - x * Math.sin(inc) And this one for the vertical: camera.position.y = y * Math.cos(inc) + z * Math.sin(inc) camera.position.z = z * Math.cos(inc) - y * Math.sin(inc) Here an example with Three.js: https://codepen.io/josema/pen/xyQoga. The idea is to make the vertical rotation with de mouse. Quote Link to comment Share on other sites More sharing options...

Enzo Posted November 16, 2018 Author Share Posted November 16, 2018 What I really needed was a way to translate a polar/spherical coordinates into cartesian coordinates. In other words, I have two angles and one radius and a need to convert it into a Vector3/XYZ. Here is the code: function polarToCartesian( angleV, angleH, radius ) { var phi = ( 90 - angleV ) * DEG2RAD var theta = ( angleH + 180 ) * DEG2RAD return { x: -(radius * Math.sin(phi) * Math.sin(theta)), y: radius * Math.cos(phi), z: radius * Math.sin(phi) * Math.cos(theta), } } Source: https://gist.github.com/jhermsmeier/72626d5fd79c5875248fd2c1e8162489 Quote Link to comment Share on other sites More sharing options...

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