Irrlicht Engine

Hi,

sorry for stupid questions but i would like to confirm if i've really understand some things correctly in the engine.

Does the SMaterial structure manages all the samplerstates for each texturestage and keeps all other needed texture properties in it?

e. g
If i wan't to use an iron texture,i ...

I didn't say that was a good reason. You know, unless those are the last 6 bytes of storage on your hard drive, and Alyson Hannigan has just given you her phone number and you need to write it down somewhere. Then you'd be glad you used a struct.

Very funny.

You don't have to held account for ...

Hi,

is there a reason why using a structure for Vertex?
Why not using a class for Vertex?

Is there a technical reason or is it just design style of the coder?
Same for Materialstructure.

thx

Acki wrote: The main reason I'm using static libs is, because they are a little bit faster

On which situation?

Thx vitek,

my problem was that i only saw the empty methods in CNullDriver last night.
That's why i didn't understand what everybody is trying to explain me.
But after a detailed look in he morning 've seen that i was blind. ;)

And you confirmed my question in my last posting ...


Why does all ...

Ok,maybee i got it now.

Some of the functionality is called by all the drivers in NullDriver.
Because some of the methods contains little stuff that all drivers need the same way.

Is that the reason why nulldriver class exists?

No you do not need to implement them again if a superclass already implements them (and they are declared virtual).

BUT THEY ARE implemented again and again ...
Have a look at the DirectX.cpp and opengl.cpp files.
And you will see that they all have a function body with driverdependent code ...

Sorry,i don't understand why the dependency to CNullDriver is necessary.

And why do you speak about duplicates? The interface methods must exist in every driver so you have to write the functionbodies for each driver either ...

Anyway thx for trying to explain i really don't understand it ...

Because you then had to write the same code in the opengl driver and the software drivers. Why write the same code four times, when a single time suffices?


???
But the code is already written in DirectX.cpp files in OpenGL.cpp etc..
So the virtual prototypes of IVideoDriver can get their bodies ...

Well, why it's not enough in the CD3D9Driver.cpp then?

Why having the methods in CNullDriver.cpp and additionally in CD3D9Driver.cpp ?

I don't get it ...

CNullDriver does the generic part of the implementation of the IVideoDriver interface. Else this interface had to be implemented inside a header

But why is the generic part in CD3D9Driver.cpp not enough?

Because not every VideoDriver supports all the IVideoDriver methods?

Hi,

i'm trying to understand the code and ideas of implementations behind the irrlicht project.
I didn't really understand why the Videodriverclasses like CD3D9Driver is
derived from CNullDriver.

What is the idea behind CNullDriver?

Why is it not enough deriving from IVideoDriver?
Like ...