Adding Lights

[sandeeppster]

I am trying to add a directional light through shader, using following logic:
vLighting = ambientLight + (directionalLightColor * max(dot(normal.xyz, directionalVector), 0.0))

There is a (0,0,1) plane in my geometry.
Although this plane receives the light, but the light effect is only visible when the camera is approaching normal of the surface. If the camera "look at" is parallel to plane then the plane gets darker.

Can you please suggest if I need to add more to the code?

[fabrobinet]

Your observation does not seem wrong to me.
So you may want to:

• add more (directional or other type of) lights pointing in other direction.
• use a different lighting model, because this is the simplest one.

FYI: We'll add in the converter the possibility to override the defaults shaders and probably better built in lighting models (for convenience).

[sandeeppster]

Can we have working examples with light implemented in the scene itself? That would clear a lot of doubts.

[pjcozzi]

Is this duplicate with #93?

[pjcozzi]

Can we close this as duplicate with #93?

[fabrobinet]

yes I believe we can close this, the duck in the /model folder shows a light example. But as #93 lights are likely to be changed, so better tracking this consistently within #93.