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// Copyright 2009 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#ifdef OSPRAY_ENABLE_VOLUMES
#include "Texture.ih"
#include "volume/Volume.ih"
#include "volume/transferFunction/TransferFunctionDispatch.ih"
// c++ shared
#include "TextureVolumeShared.h"
OSPRAY_BEGIN_ISPC_NAMESPACE
SYCL_EXTERNAL vec4f TextureVolume_get(
const Texture *uniform _self, const varying DifferentialGeometry &dg)
{
const TextureVolume *uniform self = (const TextureVolume *uniform)_self;
const Volume *uniform volume = self->volume;
const uniform box3f bounds = volume->boundingBox;
if (box_contains(bounds, dg.lP)) {
const float sample = Volume_getSample(volume, dg.lP);
const TransferFunction *uniform tfn = self->transferFunction;
return TransferFunction_dispatch_get(tfn, sample);
} else
return make_vec4f(0.f);
}
SYCL_EXTERNAL vec3f TextureVolume_getNormal(
const Texture *uniform, const varying DifferentialGeometry &)
{
// TODO
return make_vec3f(0.f, 0.0f, 1.0f);
}
///////////////////////////////////////////////////////////////////////////////
export void *uniform TextureVolume_get_addr()
{
return (void *uniform)TextureVolume_get;
}
export void *uniform TextureVolume_getN_addr()
{
return (void *uniform)TextureVolume_getNormal;
}
OSPRAY_END_ISPC_NAMESPACE
#endif
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