Controling and Smoothing Depth of Field in Maya

We’ll see how the image below changes as Depth of Field parameters are altered. We’ll then take a look at smoothing the depth of field because the default maya DoF makes the render look very grainy. If you select a camera and open up the attributes editor there is a Depth of Field tab. Expand…

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Baking lights and shadows in Maya using Mental Ray Renderer

I’ve written how to bake lights and shadows onto texture files using the Maya Software renderer before, but this post is for the more exciting Mental Ray renderer. (Yes, smooth shading, final gather, normal maps!) Here’s a simple scene set up with a few spheres and lights. This is the mental ray render that I…

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Fixing jagged edges rendered in Maya’s mental ray

After creating a 3D house in Maya, I was disappointed to see mental ray not render the edges cleanly – the edges were jagged. This was clear especially around the windows and the top edges of the house: To fix this, the sample settings in the Render Settings were changed. In the Quailty tab, the…

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Light Fog with Maya Mental Ray using Parti Volume

Light fog doesn’t show up when you render with mentay ray like it does with Maya’s default software renderer. To make it work with mental ray, you need to create a parti volume. Before you start, go to Render Settings => Features tab. Under Extra features, tick the box for Auto volume and increase volume…

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Gamma Correction for Physical Sun and Sky

Using the Phisical Sun and Sky is meant to give realistic results for rendering, but it also seems to wash out all the colours. This is apparently due to a gamma value of 2.2 that gets applied twice. I’ve tried to fix it using a few lazy approaches (such as in post production) but came…

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Ambient Occlusion and Final Gather in Maya

Below is a render without ambient occlusion. And here is one with ambient occlusion. The image looks less flat now and shows more depth (in particular, the white wall near the hedges). To make a render layer for ambient occlusion, first click the below buttons on the channel box to get to the layers window….

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