Wondering about FOV - Printable Version +- LDraw.org Discussion Forums (https://forums.ldraw.org) +-- Forum: LDraw Programs (https://forums.ldraw.org/forum-7.html) +--- Forum: LDraw Editors and Viewers (https://forums.ldraw.org/forum-11.html) +--- Thread: Wondering about FOV (/thread-21929.html) Wondering about FOV - Roland Melkert - 2016-12-02 Width all the POV-Ray exports I'm doing lately I'm wondering about the field of view angle. Mainly because I changed it to 45 degrees sometime ago and forgot all about it, so when using a clean setup I noticed something weird about the renderings in LDCad, this of-course is the default 75 degree FOV it uses out of the box So now I'm wondering to change that default to 45 or not. I also experimented with a simple macro script to help calculate a realistic FOV angle. Code:```function runFOVCalc()  local w=tonumber(ldc.dialog.runInput('Width (e.g. in centimeters) of the editing area.'))  local d=tonumber(ldc.dialog.runInput('Distance (using the same unit as width) between your screen and eyes.'))    local angle=math.ceil(2*math.deg(math.atan(0.5*w/d)))    ldc.dialog.runMessage('The optimal FOV angle is about: '..angle) end``` This gives 38 degrees for my setup (36 cm editing area width excluding the bins and source windows left/right from it, at a distance of 53 cm)  which seems low. I'm I missing something here? Anyone has some more insights on this RE: Wondering about FOV - Niklas Buchmann - 2016-12-02 The default FOV for POV-Ray is indeed very wide. In photography terms, it's equal to using a 24mm wide angle lens on a full-frame camera. I usually use a smaller FOV, around 22 degrees. My reasoning is that with LEGO models, we are used to seeing them from a distance and not getting very close to them, so a wide FOV would look unnatural to us. In the end, it comes down to personal preference or an effect you want to achieve by varying the FOV. RE: Wondering about FOV - Philippe Hurbain - 2016-12-02 (2016-12-02, 20:09)Niklas Buchmann Wrote: The default FOV for POV-Ray is indeed very wide. In photography terms, it's equal to using a 24mm wide angle lens on a full-frame camera. I usually use a smaller FOV, around 22 degrees. My reasoning is that with LEGO models, we are used to seeing them from a distance and not getting very close to them, so a wide FOV would look unnatural to us. In the end, it comes down to personal preference or an effect you want to achieve by varying the FOV.I agree, default LDCad fov is MUCH too large, causing annoying distortions in screen corners. I generally use a fov in the 25..30° range. RE: Wondering about FOV - Michael Horvath - 2016-12-09 I don't know what FOV I use in POV-Ray, because I use direction, up, and right instead of angle, look_at, and sky.