How can I add a parallel light?

sunzhuo · Post by **sunzhuo** » Thu Jan 08, 2009 3:17 pm

I found there is a type of light scenenode which can be used as a dynamic point light. But I want add a parallel light that is emitted from infinity. How can I do that?

vitek · Post by **vitek** » Thu Jan 08, 2009 4:46 pm

Change the light type to directional. To do this, you may find the documentation to be useful. Once you have the right light type, you need to be able to control the direction. To figure out how this works, you will want to look at the source. The code that calculates the direction of the light is in doLightRecalc().

Travis

hybrid · Post by **hybrid** » Thu Jan 08, 2009 5:17 pm

The API docs also describe the basic idea (light shines into direction (0,0,1) and can be rotated using the usual scene node methods).

rogerborg · Post by **rogerborg** » Thu Jan 08, 2009 5:18 pm

But how should I do that? I was going to use my keyboard for typing, and my monitor to view the results, but I thought I should check first.

vitek · Post by **vitek** » Thu Jan 08, 2009 10:51 pm

You're hilarious.

dlangdev · Post by **dlangdev** » Thu Jan 08, 2009 11:01 pm

sunzhuo looks like a bored spammer. nothing to do except ask silly questions, before the next batch spams are released.

sunzhuo · Post by **sunzhuo** » Fri Jan 09, 2009 4:58 am

sorry, guys. I am not tending to bother you. But it is really difficult for a 3d beginners to precisely manipulate irrlicht. It will take you just a minute but few hours of me to solve a problem. I just want to integrate irrlicht into my spatial analysis framework MicroCity.

hybrid · Post by **hybrid** » Fri Jan 09, 2009 9:22 am

To be honest, we still have no good tutorial for lights in Irrlicht, hence the usage might be not too obvious in the beginning. However, going through the API docs should lead to to the existing methods and members which might be of interest. So just put the code together in a way you'd expect it to work. If it fails show us the code and we'll help you without so many complaints