[x3d-public] Should Material.diffuseColor be updated to 1.0 1.0 1.0? & Should normalTexture be removed from UnlitMaterial?

[Holger Grahn]

Hi Michalis,

> As for diffuseColor making texture darker: this is indeed the case (by
> default, texture gets multiplied by 0.8), but this is equal in X3D 3.x
> and 4.x. *For grayscale textures*. For RGB textures, we did one other
> change, that may cause darkening -- see below.

No no, if you look at the origingal VRML97 spec eg. at
https://www.bitmanagement.com/developer/spec/vrml97specification.pdf
Material diffuseColor is ignored (i.e. white) for texture types RGB RGBA
See table 4.6. ODrgb = ITrgb, so diffuseColor in this case is ignored !
diffuseColor is still useful in this case to modualate with 
GRAY/Intensity textures.

In general I am glad about the new features of Material and 
PhysicalMaterial in X3D 4
My concern would be to have the new Material texture fields as a derived 
node (AdvanceMaterial) from the classical Material, for many scenes with 
simple Materials X3D 4.0 Material implementation needs much more memory 
and code, even for simple shapes.

Many Greetings
Holger





-- 
Diese E-Mail wurde von Avast-Antivirussoftware auf Viren geprüft.
www.avast.com