3D Rendering and how to reduce Rendering Time

3D Rendering

Converting your 3 Dimensional models into 2 Dimensional images with the 3D-like realism is my way of defining a 3D rendering process.

Why does it take so much time?

Even if an average RAM laptop / computer were to start rendering a 3D shape / design converting it to a 2 Dimensional image. This isn't easy as the shape / design is pretty complex i.e. it involves shading, shadows, reflection, illumination and what not!

You possibly think all this is going to be done just as quick as it takes when you press "Ctrl+S" and save your document on any photo editing software? Nope. 

Not unless you want granulated shading and blurry reflections with graininess all over the image. THAT is no way a "realistic" 3D image. 

How can I reduce Rendering time?

I researched intensively on how you can reduce Rendering time in almost any software, so these tips are general and not intended for only ONE software.

• Turn OFF Ray Tracing. This is IF your 3D shape doesn't require reflections and ambience or ray shadows.
• Level down any EXCESSIVE subsurf levels. Render your scene and see if it adversely affects your rendered image. If it doesn't, then reduce it further until you feel your render consumes lesser time.
• Soft shadows waste a LOT of time, so turn it off. I am pretty sure your render doesn't need all that Soft shadow anyway.
• For that extra touch of realism, Ambient occlusion is great tool. Unless your render is consuming a lot of time. If that's the case, turn Ambient Occlusion OFF.
• If your software automatically saves Render files, then delete them. They consume space and reduce your CPU's speed.
• Turn OFF any kinds of blurry reflections if available on your panel.
• If you are not using shadows, Turn them OFF.
• Anti-Aliasing is a very time consuming process. Turn it OFF. But ONLY if your shape doesn't need to be very detailed.
• Increase the number of tiles that render. In the picture above, you can see a 2x2 tile rendering the scene. If I increase the number of tiles, I would be able to reduce your my time down by 60%
• Make sure the Materials you are using are non-traceable.

These are probably all the things I did to reduce my rendering time to almost just 60% the original time it used to take. Like for example, if my original render time for the image above used to take 14 minutes without using all the tips above. After turning off and a few adjustments I got the entire image rendered in under 8 minutes.

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