Shape size for 'line' orbit traps should control line's length, but doesn't

[ghost]

System information (version)

• mandelbulber2 => 2.21
• Operating System / Platform => Windows 10 64bit

Detailed description

It would seem, from my personal testing, that the shape size parameter for line-type orbit trap lights has no effect. This parameter should be able to control the line's length, and maybe 0 or -1 should set it to the current behavior (of an infinite-length line.)

Steps to reproduce

Use any orbit trap lights with line shape.

[buddhi1980]

You are right. It has no effect. It is a good idea to use it to define length of the line.

[ghost]

When upgrading, don't forget to change interpret all existing formulas using line orbit traps to set the length to infinite. It could break some files otherwise.

[mclarekin]

a) alternatively a line can be viewed as a cylinder with a very small radius b) a line of fixed length has orbittrap distances at right angles along the length and radial orbitrap distances past the ends, For similar maths https://www.youtube.com/watch?v=PMltMdi1Wzg

[mclarekin]

a) clarify, size could be radius instead of length, then we have an infinte tube

General, tube or cylinder are quite cheap, but there is a lot more orbittrap lights we could implement but they are more expensive and i would consider them very low on the programs TODO priority list