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[照明3D渲染] [转载]光影效果英文制作教程

[转载]光影效果英文制作教程

Light and shadow tutorial



Lighting Tutorial
(Our way of giving something back to the community that gives so much to so many)

Before viewing the rest of this, click on Printer Friendly at the bottom of the page to see the tutorial in its entirity.

Recently I have been experimenting with creating moody images that have dramatic lighting. In Poser or Bryce or any other rendering program it can take a lot of trial and error to position the lights just right to create shadows and then once you position them you have to wait for the render in order to assess your efforts. I have discovered a quick way to effectively achieve the same results in the postwork phase. This tutorial is in no way designed to illustrate better ways to pose, I will leave that up to Firebirdz, nor is it intended to create the perfect moody images as OCDoug has that market cornered. It simply is a quick cheat method to create or enhance your perfect masterpiece render. The above image is just a quick render with default Poser lights except that they were all colored white. Very basic, very plain.



Nothing exciting I know but that is the point. There are very few shadows and the lighting is in no way intended to be dramatic. But that’s where this lil cheat comes in.
Load your image into Photoshop, Photopaint, Paint Pro or whatever you use. Create a new layer on top of it and fill that layer in with 100% black. (It’s that lil paint bucket icon that you use to fill in a layer) Right now you are saying Hey great idea, now I can’t see anything, boy this is a neat lil cheat :P). Just hold your horses. Now just decrease the transparency of that black layer so the image underneath begins to show through. In this image I used 63%. I really doesn’t matter what percentage you use, just so that you can see what’s underneath. This is my progress so far with my initial render and a black layer over it at 63% transparency.




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Now that you can see your image underneath the black layer go grab your eraser tool and select a soft brush for it. Brush size is up to you but I like to start off with one at least the size of the head of the character in the image. Set your transparency to a low number- I used 24 but any number will do. Now just go over the bright areas first with one or maybe two strokes. The idea at this stage is not to fully erase the black areas but to only remove a little bit. The next step we will erase fully the areas we want removed. Hoping you didn’t erase too much, now go back and adjust the transparency level of this black layer back to 100%. Now you will see the areas you used the eraser tool on and the areas you haven’t yet touched. All you need to do to finish is to lightly erase more of the black layer so your image beneath comes through. So without fussing around with moving lights, rendering, making adjustments and re rendering we have just achieved the same thing in a fraction of the time. This is what I came up with in about 2 minutes. Hope this helps someone.





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