[Bf-committers] Vector Separate/Combine

[Dalai Felinto]

Daniel,
you can already separate and combine vectors in the composite.
Use Convertor->Separate RGB and Convertor->Combine RGB

If we go for a change we could do the other way around. Instead of
having separate/combine RGB to have sep./comb. Vector, and use it for
colors or regular vectors. This is pretty much how GLSL syntax works
(rgb can even be interchangeable by xyz in a shader). But this may be
more confusing for the user.

In the end they are all floats, and I don't think there is any
clamping going on there.

Cheers,
Dalai
--
www.dalaifelinto.com
@dfelinto

2011/4/21 Lukas Tönne <lukas.toenne at googlemail.com>:
> On a side note: The "Normal" node in compositor is confusing IMHO.
> What it actually does is a simple dot product, but it has only one
> input. The second vector argument used for the product is a constant
> defined in the first output vector and manipulated by the "sphere
> button" (which i find not very usable). I'm not really an artist, so
> i'd like to know if this node is actually a useful simplification of
> the dot product for artistic use (pseudo lighting?). For more flexible
> vector math a "real" dot product node with two vector inputs will be
> required nevertheless.
>
> On Thu, Apr 21, 2011 at 9:13 AM, Lukas Tönne
> <lukas.toenne at googlemail.com> wrote:
>> Yes, can do :)
>> Always wanted more vector math options anyway, which are lacking in
>> compo compared to material nodes.
>>
>> * Separate/Combine for Vector<->XYZ
>> * Dot product
>> * Cross product
>> * Length
>> * Vector add/subtract
>> * Scalar multiply/divide
>> * Possibly vector multiply/divide (i.e. non-uniform scaling), but can
>> be done with separate/combine
>>
>> This should give you a basic set of operations from which to build
>> more complex stuff if needed.
>>
>> Cheers,
>> Lukas
>>
>> On Thu, Apr 21, 2011 at 2:31 AM, Daniel Salazar - 3Developer.com
>> <zanqdo at gmail.com> wrote:
>>> I really need Separate/Combine nodes for vectors in the compositor,
>>> can someone add?
>>>
>>> cheers!
>>>
>>> Daniel Salazar
>>> 3Developer.com
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>>
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