This tutorial will teach you how to fade black, smoothly into white without lots of obvious different colours in between.
Firstly, choose your colour. (I have chosen BLACK in this example) Set the colour transparency to 100 and to fade a colour smoothly you should use the AIRBRUSH tool. I recommend using SIZE 6 however this is optional. Note: This method works best over large areas with a higher pen thickness, however it can still be effective with a low pen thickness over a small area if done well.
Now we can do our first line; click the left mouse button and hold it down, then click the right mouse button before releasing the left. You can now release the right mouse button and click where you want the end of the line to be. Using this technique you can draw straight lines with the airbrush tool. You should now have a straight line which looks like the picture.
You can now draw another line, however you should first lower your transparency - I recommend lowering by 5 every line to create a smooth finish. Note: The smaller you lower your transparency, the smoother the finish will look.Using the same clicking technique, draw another line directly, but not too far below it so as you cannot see any white between the two lines. As you can see from the picture, after lowering the transparency by 5 there does not appear to be much change - this will change after you have made more lines.
Continue with this method, lowering the transparency by a set amount each time. In the picture I am down to a transparency of 80 and the colour is still fading smoothly.
Now it is starting to come along and you can clearly see the change in tone from the starting colour to the end colour.
When you have carried on doing this, the transparency will eventually reach 0 and you will have reached white. Note: You can change the space it takes to fade the colour by changing the distance between lines or changing the difference in transparency every line. Here is a finished copy.
Remember, you can use this technique with different colours.
Thank You and I hope you have learnt something! :)