int main(int argc, char** argv)
{
int maxmem = argc >= 2 ? atoi(argv[1]) : 1024*1024;
PtexCache* c = PtexCache::create(0, maxmem);
Ptex::String error;
PtexPtr<PtexTexture> r ( c->get("test.ptx", error) );
if (!r) {
std::cerr << error.c_str() << std::endl;
return 1;
}
PtexFilter::Options opts(PtexFilter::f_bicubic, 0, 1.0);
PtexPtr<PtexFilter> f ( PtexFilter::getFilter(r, opts) );
float result[4];
int faceid = 0;
float u=0, v=0, uw=.125, vw=.125;
for (v = 0; v <= 1; v += .125) {
for (u = 0; u <= 1; u += .125) {
f->eval(result, 0, 1, faceid, u, v, uw, 0, 0, vw);
printf("%8f %8f -> %8f\n", u, v, result[0]);
}
}
return 0;
}
PtexTexture* PtexTexture::open(const char* path, Ptex::String& error, bool premultiply)
{
// create a private cache and use it to open the file
PtexCache* cache = PtexCache::create(1, 1024*1024, premultiply);
PtexTexture* file = cache->get(path, error);
// make reader own the cache (so it will delete it later)
PtexReader* reader = dynamic_cast<PtexReader*> (file);
if (reader) reader->setOwnsCache();
// and purge cache so cache doesn't try to hold reader open
cache->purgeAll();
return file;
}
