Camera Shaders

This week I played around with camera shaders by using a video tutorial given to me by Jo.

Firstly I played around with ‘lens’ camera shaders, to do this I opened a scene I created last semester as a test scene, I then opened the render setup window,
Selected the ‘common’ tab and opened the ‘Assign Renderer’ drop down tab, followed by selecting the ‘Production’ button to bring up the ‘chose renderer’ window and selected ‘mental ray renderer’ and selected ‘ok.’


I then opened the render tab in the same window, then scrolled down to the ‘camera shaders’ part of the ‘camera effects’ section.
I then clicked on the ‘lens’ checkbox and the box next to it (that says ‘None’), which opened the ‘material/map browser’ window, I then selected ‘Distortion (Lume)’ from the list and double clicked it.


I then opened the ‘material editor’ and dragged the distortion map form the camera shader to a blank slot in the material editor, then a small window opened and I selected ‘instance’ to make it a instance.



I then rendered the scene with the camera shader applied.

Here is a shot of the scene with out the camera shader applied,

Here is a shot for the scene with the camera shader applied

I think the tree tops look good with this shader, but I don’t think the hair and fur worked very well with this as it looks a bit confused as to where the original path was and where one of the rabbits used to sit.
I then went on to exploring the other camera shader ‘volume’, I clicked the box next to volume and opened the ‘material/map browser’ and selected ‘mist (lume)’ this is a mist that covers the whole scene.

I then copied it into the material editor the same as I done above for the ‘lens’ camera shader.
I left the settings as default to start with, here is the outcome of the rendered scene.

I played around with changing the colour of the mist, and the transparency, here is the outcome.

This could be good to create atmosphere in scenes, for example is there is some1 mad you could have a red mist in the scene, or someone is jealous you could use a green mist, or just a grey mist would work great over a graveyard scene or something spooky to create a little more effect in the scene creating more impact on the viewer.