Lighting issues

Blynx · Post by **Blynx** » Sun Apr 13, 2008 3:07 am

I tried to create lighting, it lights the whole room with a faded colour. I don't want it that strong. I wanted it to go to a small radius. It doesn't thought.

The code I use is:
ILightSceneNode* light1 = smgr->addLightSceneNode( 0, core::vector3df(0,100,-200), video::SColorf(0.1f,0.0f,0.0f), 0.2f, 0 );

I use OPENGL since DX commands crash my application.

Any help is greatly appreciated.

arras · Post by **arras** » Sun Apr 13, 2008 7:22 am

set attenuation:
http://irrlicht.sourceforge.net/phpBB2/ ... ight=light

Halifax · Post by **Halifax** » Sun Apr 13, 2008 7:59 am

It could be attenuation, but also he should consider how the polygons are structured in what he is trying to light.

Blynx · Post by **Blynx** » Sun Apr 13, 2008 8:23 am

Halifax wrote:It could be attenuation, but also he should consider how the polygons are structured in what he is trying to light.

How do I change attenuation?

Halifax · Post by **Halifax** » Sun Apr 13, 2008 9:19 am

Try looking through the API documentation.

Blynx · Post by **Blynx** » Sun Apr 13, 2008 9:28 am

Halifax wrote:Try looking through the API documentation.

I can't find it.

hybrid · Post by **hybrid** » Sun Apr 13, 2008 9:30 am

lightnode->getLightData().Attenuation.set(0,1.f/radius,0);

Blynx · Post by **Blynx** » Sun Apr 13, 2008 9:54 am

Thanks Hybrid, that got it working.

hybrid · Post by **hybrid** » Sun Apr 13, 2008 7:13 pm

I guess I'll change back to the original Irrlicht settings. Since we can now change the attenuation afterwards, there's no loss of possibilities as it was with previous versions. But the lack of radius support under OpenGL makes the initial lights setup pretty hard now.