want to have both dynamic and ambient light

lg · Post by lg » Mon May 31, 2004 6:32 pm

can someone please help me out i want to have all the textures be 25% lit at all times then have dynamic lights only add to that.

not sure how to accomplish this ...

thx,
Chris

LittleGiant · Post by **LittleGiant** » Fri Jun 04, 2004 6:48 pm

So no one knows how to do this? Should i try creating a lightmap of some sort to do this? Seems like a waste to me...

Anyone have any comments on this?

Unarekin · Post by **Unarekin** » Fri Jun 04, 2004 7:41 pm

RTFM!
setAmbientLight (SColorf &color)

LittleGiant · Post by **LittleGiant** » Sat Jun 05, 2004 1:04 am

Well i don't think you need to reply in that manor.

But i have tried

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driver->setAmbientLight(video::SColorf(1.0f,1.0f,1.0f,0.01f));

and even with that it seems to be completely lit.
i can change it to say video::SColorf(1.0f,0.0f,0.0f,0.01f) and everything is red, so i'm a bit confused isn't the alpha channel used?

EDIT:
Alright i've gotten it working using:

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driver->setAmbientLight(video::SColorf(0.2f,0.2f,0.2f,0.2f));

I guess my problem came from a misunderstanding of the alpha channel.

Thank you to those who read this post geniuinly trying to actually help.

Have a great day.

Unarekin · Post by **Unarekin** » Sat Jun 05, 2004 3:25 am

Eh, apparently I came off in the wrong tone. I wasn't (trying) to be rude at all. It's just that a quick search for 'Ambient' in the documentation returned that function.

VeneX · Post by **VeneX** » Sat Jun 05, 2004 10:17 am

With ambient light the lightning of dynamic light doesn't react smooth. Is it possible to disable ambient light for just some models in the game?

Tyn · Post by **Tyn** » Sat Jun 05, 2004 12:24 pm

I think that every object has an ambiant light value, so you could set it to default for whatever models you want to react normally. The API usually tells you the default value, that would be a good place to start.

jox · Post by **jox** » Sat Jun 05, 2004 1:57 pm

SColor and SColorf use different initializations (concerning alpha):

SColorf(red, green, blue, alpha)

SColor(alpha, red, green, blue)

So it can be confusing...

VeneX · Post by **VeneX** » Sun Jun 06, 2004 8:51 am

Can't find anything to disable ambient light for one object

R00mpel · Post by **R00mpel** » Mon Jun 07, 2004 2:38 pm

You can use something like this to disable ambient lighting for certain SceneNodes:

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IAnimatedMeshSceneNode *newNode;
.
.
.
for(int i = 0; i < newNode->getMaterialCount(); i++)
{
    newNode->getMaterial(i).AmbientColor.set(0, 0, 0, 0);
}