0

I already saw some tutorial how to add a texture to the picture (for example: https://www.youtube.com/watch?v=wnB2NUIb1h0).

I am interested in similar technique but with one extra condition -- preserving the lighting. Let's say you have a house in the picture -- let's focus on its wall -- its entire area is not equally lit, and what worse some obstacles can shadow some parts (for example roof can cast a shadow at the top of the wall).

When I add new texture to the wall it will be obvious there is something wrong with the picture, because lighting would not match -- thus this condition of preserving the lighting.

I have Gimp installed, but any program will suffice, because I am more interested in current state of the capabilities of this feature, less in day-to-day usage of it (thus I can install a trial version of necessary program).

1

There is no doubt that adding a texture will affect the image in some way. It also depends on what type of texture you want to use.

But there are 2 methods you can try. Either set a high contrast texture where most of the values are white on multiply or use overlay for a texture where most of the values are a middle gray.

Do you need further explanation? ;) It's maybe kind of hard to understand if you don't know what the blend modes do...

  • Thank you, but when blending two textures the original pattern comes into play. Take for example "#" -- this is just a pattern, but when you treat it is as source of lightning information you will get darker and lighter places in the outcome. – greenoldman Oct 3 '14 at 10:18

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.