P: Point Gradient feature for architectural lighting

[Joe38365351y9gz]

When most users turn day photos into night photos, the radial gradient tool is used to add light to a fixture in the scene. In architectural and landscape lighting, most of the fixtures are spot lights. The radial gradient feature requires a ton of editing to the mask to make it work and the end resulkt isnt that great. I would love a point gradient mask.

One point is the light bulb, the opposite point would be the total throw distance of the light. That point would also get spreader points to make the triangle shaped spot light throw narrow or wide. Taking it to the next level would also add an internal point which would create the hot spot of the light. This would be another point gradient from the light source to the top of the hot spot

[Rikk Flohr: Photography]

While not what you are asking for, did you know that you can do something similar with the Brush tool? I only bring it up because it is the tool I use. 

1.  Make a small brush with 100% with Flow at 100% - Feather to taste
2.  Apply the brush at your 'hot spot'
3.  Make the brush larger and adjust the Flow down to say 50%
4.  Hold down Shift and apply the brush at the 'fade spot'

Lightroom will make a straight line between the two and interpolate along the line for size, feather, flow, density, and Auto Mask.  Use Color, Exposure, and Dehaze to get the desired effect. 

I make my point source brush B and my end point brush A.  You can pick it up and move it around if you like. You can also save a preset with ready-made verticals for streetlights, horizontal for lighthouses etc. 

I don't know if it will help with your workflow, but I thought I would mention it.