View Full Version : CC3 Lighting Effects and Exporting to .jpg

Wonko the Sane
06-13-2010, 08:27 PM
Below are 2 jpegs, each of the same map. The first has no lighting effects applied, and looks ok. The second is with lighting effects applied, and looks not so ok.
I've also attached a screenshot of how the map with lighting looks in CC3 before I export it (as a rectangular section .jpg)...it's fine.
The light points are the statues and the weird looking orb on the right side.

Does anyone know why I end up with it looking like 3 separate sections when I export it?

06-14-2010, 05:57 AM
It looks like you're getting three sections because CC3 calculates the map in three sections (or however many sections are appropriate for its algorithm based on map size). Unfortunately, the lighting computations only work within each section. It's a limitation of the lighting filters. The limitation is that the filters assume that they have all the information that they need when it's time to compute the shadows for the lighting, but CC3 does the multiple band output then that assumption gets violated. Note that the assumption is perfectly valid for drawings without filters or for drawings with only local-area filters; it's the filters that need global information that have problems.

Wonko the Sane
06-14-2010, 02:12 PM
Thanks for the quick reply.
I've noticed that if I drop the resolution to say, 50 px, it only takes 1 "pass" to render the jpg, and the lighting works although there is a loss of detail when blown up.
I guess I have to decide between detail or lighting effects. Sigh.

06-14-2010, 07:53 PM
Have you tried the save as PNG Option? As well as increasing the Image Size?

Wonko the Sane
06-14-2010, 09:06 PM
The .png option nets the same results. Making the image size bigger results in a higher number of passes to render, and more "stripes" across the image.

06-15-2010, 12:06 AM
What about.........printing to a PDF file?

Wonko the Sane
06-15-2010, 01:16 AM
That seems to work, however all of the curves are quite jagged at 100 dpi...it's rather ugly compared to a 100 dpi jpeg:

06-15-2010, 04:31 AM
What about at a higher DPI then?

Wonko the Sane
06-16-2010, 12:27 AM
After figuring out how to get a) Get a custom "paper" size set up for Windows 2 inches wider and higher than my map, and b) make PDF Creator work...

I had some trouble with a "moire" effect when printing to a 300 dpi .pdf than saving as a 100 dpi jpeg, but I discovered that if I print to 300 dpi, save as a 300 dpi jpeg (both in PDF Creator), and THEN convert it to 100 dpi (with any decent image editing program), the moire effect is drastically reduced. (Upon further investigation, the moire effect only occurs at the outer edges of really large-radius lights)

Examples attached.