CalcVolumetric

[Helper]

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On 04/02/2008 at 04:32, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   9.6 10.5 
Platform:   Windows  ;   
Language(s) :

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Hi,

I need to get a depth map of my scene in CalcVolumetric on in another method during the rendering process. I know that Cinema can process this depth map but it doesn't help me since my plugin should then activate itself this multipass effect and I don't want that, and I want to use my parameters for my depth map.

I tried first with vd->dist but in the case of a texture using displacement or transparency the results are not good enough.
So I tried with TraceGeometry in CalcVolumetric with the following code:
SurfaceIntersection hit;

if (vd->TraceGeometry(vd->ray,1000000.0,NOTOK,&hit;))
{
LVector vec(hit.p.x-drcCurrent.camMatrix.off.x,hit.p.y-drcCurrent.camMatrix.off.y,hit.p.z-drcCurrent.camMatrix.off.z);
dist = Len(vec);
}
else
{
dist = vd->dist;
}

The results are a bit better but some pixels are not correct, see the image below:


The ring has the displacement texture. Something similar is coming with transparency.

I read that it cannot work because the ray casting is off or not working (I don't remember) with displacement.

Well, how should I get my depth map during the rendering ?

Thanks a lot in advance.

Vincent