[Papervision3D] Phongshader enhancement (bigger lightsource?)

[Sander Schuurman]

As much as I like to use 'lens flares' ;), I don't know exactly what you 
mean... The concepts aren't clear to me.

Any other thoughts?

thnx


o renken wrote:
> As i know you cant influence the light source neither in intensity nor 
> in size.
>
> For the smooth shadow-graduation to the sites of your cube ive got a 
> thought:
> Maybe you can use a CompositeMaterial which holds your phong-shader 
> and additional a FlatShadeMaterial in the layer below. The FlatShade 
> may have a graduation from 0xFFFFFF to 0x000000. Maybe playing around 
> with blendLayers may give you a better result. Just a thought, i didnt 
> tried it.
>
> Another thing: You can try to use a EnvMapShader instead of phong or 
> gouraud. Open Photoshop, create a new 256,256 dokument. Dark 
> Background and then the LensFlare-Effekt in Render-Effects. Drag the 
> Point in the center, so youll get a nice shiny Phong-map. This you can 
> use as envMap for the shader.
> If you move you camera, you have to move the light with it.
>
> olee
>
> 2009/4/29 Sander Schuurman <barn at chello.nl <mailto:barn at chello.nl>>
>
>     Hi cool list,
>
>     To enhance my portfolio with a tiny little bit extra detail I
>     decided to add some phongshading to my rotating block.
>     My question is if the lightsource could be altered. As if it seems
>     to be bigger or something.
>
>     I've made 2 tests:
>
>     test1:
>     http://www.sentoplene.com/phongshader/test1/
>     The lighting and shadowing is a bit too dramatic for my liking,
>     it's a bit too dark
>     code:
>     var light :PointLight3D = new PointLight3D();
>     var phongShader :PhongShader = new PhongShader(light, 0xFFFFFF,
>     0x000000);
>
>     test2:
>     http://www.sentoplene.com/phongshader/test2/
>     The lighting of the front element is more to my liking, only the
>     shadows stay way too light when I turn the block. I like it as in
>     test1 when the shadow will turn too black.
>     code:
>     var light :PointLight3D = new PointLight3D();
>     var phongShader :PhongShader = new PhongShader(light, 0xFFFFFF,
>     0xbbbbbb);
>
>     I know some photography, so I know when you enlarge your
>     lightsource that the light gets softer. Is this possible? Or can I
>     simulate that? That the light gets bigger, so the front element
>     gets lighter in general, but when I turn the block, the shadows
>     will go towards black?
>
>     I hope I make myself clear... anyone?
>
>     Sander
>
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