What is the ideal focal length for sculpture?
I have a question about sculpture in Blender. I researched the most appropriate use of perspective when sculpting, but I can't find a consensus on the subject. What seems most correct to them being the goal is to be able to use the character sculpted in games:
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use a focal length of 30 to 35?
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use a focal length of 35 to 40?
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use a focal length of 50 to 55?
3 Comments
There is no clear answer but as a general rule, what u should pay closer attention to is the balance between realism and stylized.
30 below makes wider focal length. Useful in archviz. As focal lengths becomes wider the distortion also becomes noticeable. (stylized mode)
35 above creates more narrow lense, hence makes compositions look more accurate and less distorted.
50 is a general focal lenghth in blender. Creates a realistic perspective without making the focal length too narrow.
100 is also commonly used in compositions that focuses more on realistic perspective.
When it comes to sculpting in the viewport, u should probably stick w/ 50. It just depends on your preference.
* @johnpdelacruz28 * I appreciate the answer. Actually, in the research I did I didn't find a specific answer. But recently in an optive discussion forum something more punctual that relates the proportion of final rendering with use of perspective, In this approach it was indicated to use 50mm for SD ratio (1,333) and 43mm when the widescreen type ratio (1,777)
The conclusion I reached is that when using 43mm to sculpt I will have a middle ground, which minimizes lens distortion regardless of the final application. Therefore, 43mm seems to me to be the most adaptable angle to different situations.
However, if I am looking for perfectionism, I must change the viewing angle based on the reference image / photo as well. In this case I found the following indication:
use 30mm when the reference has a wider angle, for example photos of celebrities on the red carpet (wide angle)
use 90mm when the reference has a closed angle, for example diatured photos taken from 1 to 2 meters made by a telephone
use 50mm to simulate the human eye and when the sculpted model is later displayed in other applications that use a real camera environment, such as Marmoset for example.
* @Corelista * I see. Focal length effect is also related to distance. The center is th safest place for the subject. The farther U r to the subject, greater chance for the dostortion to catch some part of it compared 2 being too close. In the end, I guess if u r not too concern with those minimal changes; any average focal length will do.