Hello Vincenzo,
Vincenzo Marafioti wrote:
> i need to get u, v, s, t texture coordinate value from a triangle
> iterator. I tried to do as shown below:
>
> for(; triIt != triEnd; ++triIt){
> //for every vertex of the triangle
> for(int v=0;v<3;v++, i++){
> vec2f t0 = triIt.getTexCoords(v)
> vec2f t1 = triIt.getTexCoords1v)
> vec2f t2 = triIt.getTexCoords2(v)
> }
> }
>
> But the triangle iterator methods avaliable do not directly allow me to
> get all the 4 components. I should use the geometry index I think, do
> you have any idea about?
GeometryPtr geo;
GeoTexCoords4fPtr tcoords =
GeoTexCoords4fPtr::dcast(geo->getTexCoords());
const GeoTexCoords4f::StoredFieldType *tc = tcoords->getFieldPtr();
Vec4f t0 = (*tc)[triIt.getTexCoordsIndex(0)];
Vec4f t1 = (*tc)[triIt.getTexCoordsIndex(1)];
Vec4f t2 = (*tc)[triIt.getTexCoordsIndex(2)];
Cheers,
Carsten
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