Let's just assume, we wanted a teapot to glow. At first, we'd create a teapot (listed under "Standard Primitives"). It should look like this:

Radius, coordinates etc. don't matter for this tutorial. Just see that the teapot is in the center of the perspective window. ;-)

Here you can choose an Object ID ("Object Channel") for the teapot. You may enter values from 0 to 65535. Note, that "0" cannot be addressed by glow effects, so set it to "1" (or higher). You may also give two objects the same ID number, but that would cause both objects to glow, when addressing this specific ID.
Another method is, to give the teapot a material ID. For this, open the Material Editor, create a (for example red) material for the teapot and apply it:

The highlighted button in this image sets the material ID number. Click on it and hold the button for ca. 2 secs. You may choose a material ID from 0 to 15. Please note, that "0", again, cannot be addressed by glow effects and giving two materials the same ID, will enable both of them to glow. All objects with this material will glow, including our teapot. ;-)
Besides, it is also possible to set material IDs for sub-maps (for example "Diffuse"). This is extremely useful, if you only want a small area of an object to glow. You could create a "Bitmap" map with a material ID and only address the area of the object, where the bitmap is located.

Here, we can add a filter event to our queue. A filter event starts a plugin after MAX has completed rendering the scene event, that processes the rendered output image. A "Lens Effects Glow" filter, for example, lays a glow effect over certain objects, referring to the material ID or the object ID of these objects to identify them. Click on "Setup..." to alter the properties of "Lens Effects Glow". Before clicking on "Setup...", click on "OK" to add the filter event to the queue:

Now double-click on "Lens Effects Glow" to go back to the previous window and click on "Setup...". You should now see this window:

The black rectangle, you can see there, is the render preview window. At first, click on "VP Queue", which means that all Video Post events up to this one are executed within this preview. Then click on "Preview" and wait a moment, while MAX is rendering the scene. The teapot should then glow red, or whatever color you gave its material.
Note, that "Object ID" is already set to 1 by default, so that your teapot is addressed. It should no longer be glowing, once you deactivated this checkbox. The "Effects ID" field addresses a material ID. It is also set to "1" by default, so the teapot should glow, if you activate the checkbox.
In the "Filter" field you can configure the type of glowing. There are some more interesting options under "Preferences", "Gradients" and "Inferno". You can easily discover them by yourself by just trying some of them. By the way, the "Lens Effects Highlight" filter works almost exactly like this one. Try to combine them and play around a little bit. I learned it all very fast, that way. :-)
Output to file
Did you already ask yourself, how to output the image to a file? What you need to do, is to add an "Image Output Event". Therefore, again, make sure to have nothing selected in your queue and then click on
. You should now see this window:

Click on "Files..." to select an output file for your scene and see that "VP Start Time" and "VP End Time" are set correctly, otherwise your image/video or some frames of it might be rendered, but not written to your harddisk.
After doing all this stuff, your queue should look like this:

Note, that all events are executed chronologically. If you place a filter below an output event, your image would be saved to disk before the filter would be executed, which means the filter would have no effect on the output image. You can move these events up and down by using Drag & Drop. All filter events should be listed between your scene event and your output event. Now simply render with
and enjoy!

(After playing with all the options, you will soon be able to render objects with filter effects.)
Download example MAX file
I hope, this tutorial helped you learn some new techniques, considering effects and Video Post. Please mail me, if you've got some suggestions. :-)
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