Light doesn't work !!

[troopa]

I have a problem with Light. I have a sphere which is red and I would like to light it. I have try many things but I don't manage to have Light effect on my sphere, it's desperatly red.

Did you have any remark on the code I wrote :

Code: Select all

	scene::ISceneNode* node = NULL ; 
	scene::IAnimatedMesh* sphere = device->getSceneManager()->getMesh("./ressources/sphere.obj"); 
	if (!sphere) 
	{
		printf("incorrect filename\n"); 
		return 1; 
	}
	
	// red sphere
	node = device->getSceneManager()->addAnimatedMeshSceneNode(sphere);
	node->setPosition(core::vector3df(0,0,200));
	node->setMaterialType(video::EMT_SOLID);
	node->getMaterial(0).AmbientColor = video::SColor( 255, 255, 0, 0 );
	node->getMaterial(0).DiffuseColor = video::SColor( 255, 255, 255, 255 );
	node->getMaterial(0).SpecularColor = video::SColor( 255, 255, 255, 255 );
	//node->getMaterial(0).EmissiveColor = video::SColor( 250, 250, 250, 250 );
	node->setMaterialFlag(video::EMF_LIGHTING, true);
	
	// light juste over the red sphere
	scene::ILightSceneNode * pLight = device->getSceneManager()->addLightSceneNode( node );
	pLight->setPosition(core::vector3df(0,50,0));
	pLight->getLightData().AmbientColor = video::SColorf( 1.f, 1.f, 1.f );
	pLight->getLightData().DiffuseColor = video::SColorf( 1.f, 1.f, 1.f );
	pLight->getLightData().Position = pLight->getPosition() ; 
	pLight->getLightData().SpecularColor = video::SColorf( 1.f, 1.f, 1.f );
	pLight->setDebugDataVisible( true );
	pLight->getLightData().Radius = 200 ;

Thanks for your answers !

[hybrid]

I think it's diffuse color you want to set to red, ambient color is the color for no light. And when setting the position of the sphere to 0,0,200 and that one of the light to 0,50,0 with a radius of 200 your light won't reach the sphere unless it's pretty huge. The radius should be at least the square root of 200^2+50^2 (pythagoras).