Thursday 16 May 2013

Bike Shaders and Chromatic Aberation

Work in progress
Been working more on the motorbike. Mostly on Animation but today have been working on the shaders. Thankfully this is quite an easy process because very few objects need to be uv mapped (and even those are simply planar projections so not much hassle there).

I have added a bump to the engine's logo 'Dafra' and also there is a bump on the bikes rubber handles which work really effectively.

I have also been experimenting with trying to get more realism from my images so I rendered out a single image and then tried adding 'Chromatic Aberation'. For those that don't know what this is, Chromatic Aberation is a distortion on a real world camera lens that give a subject an ever so slight colour fringe depending on how the light is split. Ironically, most professional photographers try to remove this colour fringing to create better looking images while CG Artists add it to create realism in the picture and to better reflect a real world camera.

The above process was quite basic, just a simple case off-setting the colour channels of red and blue. However, for an even more realistic look I should use a depth map to control how strong the effect is closer and further away from the camera.

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