White Walls

We sent out a rendering tip today about White Walls.

Boothy pointed out that you can also make quick adjustments to walls using the Material/Color channels feature.

Here is a rendering of a house which we used for our first Webinar;

Webinar house1.jpg

By clicking on the material in the back wall, you can select Change Color

Change color.jpg

This brings up a Wizard which lets you make changes to the color of a material after rendering.

Here I changed it to HSL (rather than RGB) mode, which lets you set the luminance of the color directly. And used the slider bar to move it more towards white.

I was able to adjust the wall with the slider until I got a lighter effect.

Note Material Channels does not re-render the model, so if you change the color too much, any anti-aliasing at the edge of the color will not be changed properly, and also any reflections of a color will not be changed. But it can be a good idea for Walls.

See: Material Channels

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Permalink Reply by Render Plus on October 31, 2012 at 9:54am

A user response to the White Wall email:

I'd rather the grey. That white looks terrible.

I made the final walls too white. You cna just barely see the corner of the room.

Still, we do receive lots of requests from users asking how we can make the walls whiter.

Rich came up with another idea yesterday for brightening a sloped ceiling. He placed a transparent rectangular surface in the model at the base of the ceiling, made if a diffuse light - pointing upward, made it 100% transparent, set IOR to 1.0 and set Reflection to 0.00 and used it to illuminate the ceiling until it was shite enough.