How Do I Get A Camera's 'Y' Angle in Degrees?
I have tried many methods to get the camera's Y angle, and I have a slight intuition that I can obtain the Y angle using some trigonometry, but I don't know how to do that. How do I get the current camera's y angle in degrees as a full 360° rotation?
I've already tried these methods:
local cam = workspace.CurrentCamera -- eg #1 local ex, ey, ez = cam.CFrame:ToEulerAnglesXYZ() local rotation = ey -- this give the values from -2 to 1. ???? -- eg #2 local rotation = cam.CFrame.Angles() -- error -- eg #3 local rotation = math.asin(cam.CFrame.lookVector.Y)
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Indeed, we can use the CFrame.LookVector and trigonometry to get something like what you want.
I figured this out by drawing a right-angle triangle representing the coordinates of the LookVector. I labelled the bottom line as 'x' and the vertical line as 'y'. Trigonometry says that you can get the angle you're interested in with math.atan - but there's a problem: we have to consider the 'z' component. Fortunately we can use the Pythagorean Theorem to combine x & z.
-- Example you can put in the command bar v = workspace.CurrentCamera.CFrame.LookVector print(math.deg(math.atan2(v.Y, math.sqrt(v.X^2 + v.Z^2)))) -- math.sqrt is the Pythagorean Theorem part, combining x and z -- math.atan2 is the inverse tangent (split into two arguments, the 'y' component and the 'x' component) -- math.deg converts it from radians into degrees -- the result ranges from -80 when you're looking nearly straight down to +80 when you're looking nearly straight up (Roblox evidently prevents the default camera from looking straight up/down)
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