Rman DSO Problem

[iamjaideep80]

Hi

I am trying to write a Rman Procedural for Houdini.

Right now , what I want to do is , take a bgeo file as a argument and scatter points on its surface at render time.

On my first step, I was successful putting points on the input geometry points.

Now, I am looping thru all primitives and finding there centres to put points.

But there are some methods which when I use in my code, aborts Rman and gives this error . imdisplay-bin: Invalid tile header

my code is somewhat like this

i = 0;

FOR_ALL_PRIMITIVES(skinGdp,skinPrimPtr)

{

UT_Vector4 hairBasePos;

skinPrimPtr->evaluateInteriorPoint(hairBasePos,0.5,0.5);

cvs[0] = i*0.2;

cvs[1] = i*0.2;

cvs[2] = i*0.2;

widths = (RtFloat)0.1;

i=i+1;

}

RiPoints(numPoints,"P",cvs,"width",widths);

the cvs array is set with arbitrary values, just to check if it is working.

Even the hairBasePos gives correct values. I printed it and checked.

But This code stops with error imdisplay-bin: Invalid tile header

if I skip the statement, skinPrimPtr->evaluateInteriorPoint(hairBasePos,0.5,0.5);

code works fine, and renders arbitrary points.

I thought my skinPrimPtr is not correct and I included

cout << "Prim Num : " << skinPrimPtr->getNum() << "\n";

but it shows correct output and renders without any error.

Plz Help...