Monday, 19 November 2012

lighting!

The main issue with lighting I have encountered is due to the sky dome added before hand. It has created a slight issue with what the light has an effect on.

The best way round this was following a tutorial around 'omni' lighting, and then adding the sunlight. It took a little while to get my head round the idea of a sky dome, and I have noticed the size of the sky dome is going to have to be very large for most designs. 

The sunlight appears to be very useful, but also harder to control then most of the other light options, placing it by compass and time etc as opposed to manually positioning. 

I have found a few tips that really help with using a sky dome, and lighting it. 

the best thing for a sky dome when working is to go into its options and cull it, so you can effectively see through some of the sky dome, allowing you to see what is going on in the scene a lot easier. 

it is also a good idea to do the same with the plane. There is a lot more in depth lighting options i wish to look into, as i want to make specific parts of my models glow for example, this uses a specific render-er known as a mental ray render-er  but, when rendering the scene at the minute it makes everything black and white, so i will have to research further into this before i can use it, it will also add a lot of render time to my animation later if i do choose to use it. 

Omni lighting is the best lighting solution I have found so far, and Can change the color, it could be possible to use this and focus it independently on the parts of the models i wish to stand out and glow in a different light.  

additional lighting -

I have now added sunlight, using the sunlight and compass, an omni light to just light the sky, and 2 omni lights as engine outputs for one of my models, it has added to the rendering time, but is a lot easier, then adding a mental ray render-er, which was a little bit too much too look into for this project, and I believe would be more beneficial for still shot rendering then animation anyway. The lights give off a nice glow for the engines. the sunlight gives good shadow for the ships as well, which shows they are hovering and will help show the speed as it travels across the sand, and pick up on the hills and dips in the environment. 


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