Autodesk Inventor - Inventor Studio

Lighting Style - Lesson 1: Create a new Global Lighting plus two lights style

For this lesson I will use a copy of the Global Lighting [1 lt] style because it closely matches what I want to accomplish.
In the tool panel, click the Light Style command.

This causes the Lighting Styles dialog to display.
Familiarize yourself with the lighting styles. When you feel you know enough about them to get started then...

Select a lighting style that closely resembles what you would like to create.
Right mouse click (RMC) the lighting style and click Copy Lighting Style.
Give the lighting style a name that suits the purpose for your lighting style. Or a descriptive name, something meaningful to you or those you will distribute it to.

In this instance I am using a name similar to the one I copied because it will be a variation of it.
After copying the lighting style, I want to add an additional light. To do that, I click the New Light command in the dialog toolbar.
Alternatively, I can RMC and click New Light.
I want a light that will give me a focal point in the image, so I want to use a spotlight.

In the Light dialog box, in the Type frame, click Spotlight.
Move your cursor into the graphics area and select a face on the model as the light target.

When you the model face the light beam is displayed normal to the face.
Next, move the cursor along the beam line away from the model to the light position. When you reach a position you want, click to establish the light position relative to the target.
In the dialog, on the Illumination tab, set the Intensity to 50%.
Note: As you develop more lighting styles, experiment with various settings.
Specify the light color. I want the material to have a colder feel, so I specify a cool color, light blue.
Click the Shadows tab. In the Type frame select Soft Shadows.

I prefer soft shadows when working with global illumination because it closely mimics the shadow that occurs on an overcast day.
In the Quality frame select High.

Note: When test rendering you can use lesser settings to sample faster. Then change the settings for the final render.
In the Density control set the value to 80% maximum.

The shadow on an overcast day isn't a bold solid shadow, but one that is less dense.
On the Spot tab, in the Decay frame, select Inverse in the dropdown list. Then specify a Start Distance where the decay begins to take affect. This may take some experimentation to get what you want/like.

To narrow the light beam, set the Hotspot to 15 degrees and the Falloff to 30 degrees.
For the final part of this lesson, I changed the directional light, that was included when I made the new style, into a point light. I then positioned that light inside the Carb.ipt part cavity so it would illuminate some of the interior features. This is the final render.

What could make this better? A light in the foreground and to the right to make the dark face a little more visible. Perhaps bringing up the ambient light would work. Try it out and see.

What was my purpose in creating this lighting style. First, Global lighting without additional lights does not cast a shadow on the Scene style planes - this is because the planes have special characteristics that 3D geometry does not. Scene styles do respond to Studio lights, so adding lights allows you to control the shadows. Lights also allow you to control the "feel" of a scene - warmer colors raise different human responses than colder colors. We all know pictures sell ideas - if they didn't then advertising would be operating in a different mode than it does today.

So, have fun making the lighting styles you need. Share them with others if you want.
Future lessons include manipulating lighting styles.

Happy rendering!
- Bill Bogan