Re: Spherical Light

[Jose' C. <cru...@ce...>]

Il giorno 02/lug/07, alle ore 15:42, Roger Holmes ha scritto:

>
> On 2 Jul, 2007, at 12:23, Jose' Cruanyes wrote:
>
>> Since Rayshade supports spherical lights, it could be a good addition
>> to Quesa
>>
>> it's just a point lighi with a diameter, and it creates a blurred
>> shadow (really nice)
>>
>> I can derive it from point light (or the other way around, since the
>> point light is an especial case of spherical light)
>> or create a completely new type
>>
>> what is better?
>
>
> If it needs an extra data field, your spherical light should inherit
> from point light. Can we make it so that renderers which do not
> support them see the base class instead, and just give crisper =20
> shadows.

I've not still decided, but the better (IMHO) will be to extend the =20
point light, call it spherical, and let access it fron the old API as =20=

point light, when the radius data will be ignored

the problem will be the metafile I/O, in reading old files there's no =20=

problem, the problem is in reading new files with old code... the =20
lights will be lost, since it will be saved as spherical, and the old =20=

code expects point lights, unless we don't save the lights with =20
radius 0.0 as point lights...

I'll update the Quesa renderers to use it as point light,

for the Microspot, you can just add a case label and treat it as =20
point light,

>
> Hate to curb your enthusiasm for new stuff, but any news on the
> caching problem in RayShade?
>
I've no problem, but probably I'm using it very differently than you

please trace RS_UpdateAttributes in the RS_Update.cpp file to see how =20=

the specular control value changes



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