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packedsphere/packedsphere.C
/*
* Copyright (c) 2018
* Side Effects Software Inc. All rights reserved.
*
* Redistribution and use of Houdini Development Kit samples in source and
* binary forms, with or without modification, are permitted provided that the
* following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. The name of Side Effects Software may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY SIDE EFFECTS SOFTWARE `AS IS' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL SIDE EFFECTS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*----------------------------------------------------------------------------
*/
#include <UT/UT_Args.h>
#include <UT/UT_Options.h>
#include <GU/GU_Detail.h>
#include <GT/GT_Types.h>
static void
usage(const char *program)
{
fprintf(stderr, "Usage: %s [options]\n", program);
fprintf(stderr, "Options:\n");
fprintf(stderr, " -l lod Sphere level of detail [default: 3]\n");
fprintf(stderr, " -o file Save geometry to file [default: stdout.geo]\n");
fprintf(stderr, " -v vlod Viewport level of detail [default: 'full']\n");
fprintf(stderr, " Choose one of:\n");
for (int i = 0; i < GEO_VIEWPORT_NUM_MODES; ++i)
{
fprintf(stderr, " - %s\n", GEOviewportLOD((GEO_ViewportLOD)i));
}
}
int
main(int argc, char *argv[])
{
// Make sure to install the GU plug-ins
#if !defined(WIN32)
// The following line of code is just to force linking of GT library on
// Linux. If this doesn't exist, there might be linking errors when trying
// to load GU_PackedSphere.so (set HOUDINI_DSO_ERROR to 1 or larger to see)
//
// Since GU_PackedSphere.so isn't linked against any libraries, library
// availability becomes dependent on the order that plugins are loaded.
// Another solution to this problem would be to specify the libraries
// required when linking the .so file.
if (argc == 1<<28)
printf("%s\n", GTstorage(GT_STORE_UINT8));
#endif
// Process command line arguments
UT_Args args;
args.initialize(argc, argv);
args.stripOptions("l:o:v:h");
if (args.found('h'))
{
usage(argv[0]);
return 1;
}
const char *output = args.found('o') ? args.argp('o') : "stdout.geo";
int lod = args.found('l') ? args.iargp('l') : 3;
const char *viewportLOD = args.found('v') ? args.argp('v') : "full";
GU_Detail gdp;
// Create a packed sphere primitive
GU_PrimPacked *pack = GU_PrimPacked::build(gdp, "PackedSphere");
if (!pack)
fprintf(stderr, "Can't create a packed sphere\n");
else
{
// Set the location of the packed primitive's point.
UT_Vector3 pivot(0, 0, 0);
pack->setPivot(pivot);
gdp.setPos3(pack->getPointOffset(0), pivot);
// Set the options on the sphere primitive
UT_Options options;
options.setOptionI("lod", lod);
pack->implementation()->update(pack, options);
pack->setViewportLOD(GEOviewportLOD(viewportLOD));
// Save the geometry. With the .so file installed, this should load
// into Houdini and should be rendered by mantra.
if (!gdp.save(output, NULL).success())
fprintf(stderr, "Error saving to: %s\n", output);
}
return 0;
}