DnD 3.5 low light vision, See normally in dim light but blind in darkness.

I know how to increase the range of a light . but how do I give characters the ability to see normally in dim light without the ability to see in Darkness.

You would set the light source to only be light, no dim area on the light. For example, if the character had a torch as their light source, and it would normally provide 10 ft of light and a further 10 ft of dim light. If the case of a character with low-light vision, you just set their torch to provide 20 ft of light and 0 ft of dim light.

that would apply to everyone though, even the ones that don't have neither Darkvision nor Low light vision, and it wouldn't help with lights they're not carrying.

You usually set character vision on a per token basis. 1. Drag the character token onto the map 2. Click the token then the leftmost icon (the cog), this will open up the setting page 3. Go to the Dynamic Lighting page. You'll find the relevant settings you need there.

Nope, there's only Darkvision or No darkvision nothing that helps with low light vision; there's a slider for Light multiplayer which helps with the first part, but nothing that would make the token see normally in dim light while blind in darkness.

Enable Vision, do not enable Night Vision. Example 1 : Token with Vision, but no Night Vision, is in a dark area with no light sources. It cannot see anything. Example 2 : Token with Vision, but no Night Vision, is in a dark area and is holding a light source, which provides 10 ft of bright light and 10 ft of dim light. NB: I have setup the token to have 20 ft of light and no dim light for its light source. Token can see normally for 20 ft. Example 3 : Token with Vision, but no Night Vision, is in a dark area and has no light source. Nearby is a shaft of light prodiving 10 ft of bright light and 10 ft of dim light. I believe this may be the situation you are specifically looking at. If so, you have to put on your DM hat and say "its fine, you can see normally there are you have low-light vision", as I don't believe this is currently supported by Roll20.

You just repeated what I told you does not help with pictures. This does not achieve the desired effect, this would be a good solution only if I had a single player or if all my players had the same vision, but when one has no special vision and the other has low light vision, this does not help in the slightest. What I want to achieve is in your last picture imagine there are two tokens one sees what you have in the picture while the other sees the dim light in that picture as being bright light.

If you read my last post I suggested you be a DM as Roll20 probably cannot do what you are asking. You're not playing a computer game here, this is an RPG.

Hi M. Hiyari,  As Manny L. said, this is really a DM-Player thing rather than something that can be achieved in Roll20.  My suggestion, set up Light and Dim Light normally. Turn the brightness of Dim Light up to about 3/4 of maximum. That way you and your players can see the difference in light levels but your players can see what is going on in the "dim light".  Next, you tell the player(s) with the ability to see in Dim Light normally that they can do so.  Put this another way: how would you handle this at the kitchen table without a virtual tabletop? 

Alright, I can live with that; I like to automate as much as possible as a DM to lighten the load saying "you see exactly what your character sees" is a lot more intuitive than saying "I know you see dim light but your character sees bright light". Saying there is no way to do it would've been a lot better than replying like he had a full solution, if he had simply wrote "you can't exactly do that but" before his answer there wouldn't be any confusion or misunderstanding on my part; I still appreciate him trying to help though, and I'm gonna do what he suggested at the end.

This may not be exactly what you are looking for, so don't freak out, BUT  I think it might be close to what you're after if you try the following:    1) Give the token of the character in question Vision and Nightvision as normal.    2) Change the tint color to the darkest black.    3) Set the "nightvision effect" setting to Nocturnal. As far as I could tell after playing around with it for a bit, this appeared to give the token the ability to see in dim light as if it were bright but pretty much not able to see in darkness at all. It looked best when the token's nightvision was pretty restricted but I was on a small map so your mileage may vary. 

That's what I'm doing at the moment, but thanks for the help.