Add solid-color/lighting toggle functionality

[cdcseacave]

This is the desired functionality in case of viewing 3D models reconstructed using photogrammetry for which the light is already backed into the texture.

[mcallieri]

Hi. Thank you for the suggestion. We do need to rewrite completely this part, as it is messy. The roadmap is, at the moment:

• a quick release update, before christmas, to correct some bugs and add few things.

• a more complete update in January, including a revised lighting calculation (and the possibility of turning it on/off, as you have done) For this reason, I will not include your pull, now. Sorry. However, since you think a lighting switch useful, I want to ask: in your opinion, it would be better to have: A) a global "light on/off" switch, affecting ALL geometries OR B) the possibility of individually turn lighting on/off for each instance? (A) is simpler to implement and to use, while (B) is more flexible (and a global light on/off can achieved by setting all instances).

  Marco

[cdcseacave]

Hi Marco, option A is fine for our needs. It would be also very helpful to have a navigation system similar to the one in meshlab.