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// Copyright 2009 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
// ospray
#include "Curves.h"
#include "common/DGEnum.h"
#ifndef OSPRAY_TARGET_SYCL
// ispc-generated files
#include "geometry/Curves_ispc.h"
#endif
// std
#include <map>
namespace ospray {
static std::map<std::pair<OSPCurveType, OSPCurveBasis>,
std::pair<RTCGeometryType, FeatureFlagsGeometry>>
curveMap = {
{{OSP_ROUND, OSP_LINEAR},
{RTC_GEOMETRY_TYPE_ROUND_LINEAR_CURVE, FFG_ROUND_LINEAR_CURVE}},
{{OSP_FLAT, OSP_LINEAR},
{RTC_GEOMETRY_TYPE_FLAT_LINEAR_CURVE, FFG_FLAT_LINEAR_CURVE}},
{{OSP_RIBBON, OSP_LINEAR}, {(RTCGeometryType)-1, FFG_NONE}},
{{OSP_DISJOINT, OSP_LINEAR},
{RTC_GEOMETRY_TYPE_CONE_LINEAR_CURVE, FFG_CONE_LINEAR_CURVE}},
{{OSP_ROUND, OSP_BEZIER},
{RTC_GEOMETRY_TYPE_ROUND_BEZIER_CURVE, FFG_ROUND_BEZIER_CURVE}},
{{OSP_FLAT, OSP_BEZIER},
{RTC_GEOMETRY_TYPE_FLAT_BEZIER_CURVE, FFG_FLAT_BEZIER_CURVE}},
{{OSP_RIBBON, OSP_BEZIER},
{RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_BEZIER_CURVE,
FFG_NORMAL_ORIENTED_BEZIER_CURVE}},
{{OSP_DISJOINT, OSP_BEZIER}, {(RTCGeometryType)-1, FFG_NONE}},
{{OSP_ROUND, OSP_BSPLINE},
{RTC_GEOMETRY_TYPE_ROUND_BSPLINE_CURVE, FFG_ROUND_BSPLINE_CURVE}},
{{OSP_FLAT, OSP_BSPLINE},
{RTC_GEOMETRY_TYPE_FLAT_BSPLINE_CURVE, FFG_FLAT_BSPLINE_CURVE}},
{{OSP_RIBBON, OSP_BSPLINE},
{RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_BSPLINE_CURVE,
FFG_NORMAL_ORIENTED_BSPLINE_CURVE}},
{{OSP_DISJOINT, OSP_BSPLINE}, {(RTCGeometryType)-1, FFG_NONE}},
{{OSP_ROUND, OSP_HERMITE},
{RTC_GEOMETRY_TYPE_ROUND_HERMITE_CURVE, FFG_ROUND_HERMITE_CURVE}},
{{OSP_FLAT, OSP_HERMITE},
{RTC_GEOMETRY_TYPE_FLAT_HERMITE_CURVE, FFG_FLAT_HERMITE_CURVE}},
{{OSP_RIBBON, OSP_HERMITE},
{RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_HERMITE_CURVE,
FFG_NORMAL_ORIENTED_HERMITE_CURVE}},
{{OSP_DISJOINT, OSP_HERMITE}, {(RTCGeometryType)-1, FFG_NONE}},
{{OSP_ROUND, OSP_CATMULL_ROM},
{RTC_GEOMETRY_TYPE_ROUND_CATMULL_ROM_CURVE,
FFG_ROUND_CATMULL_ROM_CURVE}},
{{OSP_FLAT, OSP_CATMULL_ROM},
{RTC_GEOMETRY_TYPE_FLAT_CATMULL_ROM_CURVE,
FFG_FLAT_CATMULL_ROM_CURVE}},
{{OSP_RIBBON, OSP_CATMULL_ROM},
{RTC_GEOMETRY_TYPE_NORMAL_ORIENTED_CATMULL_ROM_CURVE,
FFG_NORMAL_ORIENTED_CATMULL_ROM_CURVE}},
{{OSP_DISJOINT, OSP_CATMULL_ROM}, {(RTCGeometryType)-1, FFG_NONE}}};
// Curves definitions ///////////////////////////////////////////////////////
Curves::Curves(api::ISPCDevice &device)
: AddStructShared(device.getDRTDevice(), device, FFG_NONE)
{
#ifndef OSPRAY_TARGET_SYCL
getSh()->super.postIntersect =
reinterpret_cast<ispc::Geometry_postIntersectFct>(
ispc::Curves_postIntersect_addr());
#endif
// TODO implement area sampling of OldCurves for geometry lights
}
std::string Curves::toString() const
{
return "ospray::Curves";
}
void Curves::commit()
{
indexData = getParamDataT<uint32_t>("index", true);
normalData = nullptr;
tangentData = nullptr;
texcoordData = getParamDataT<vec2f>("vertex.texcoord");
Ref<const DataT<vec3f>> vertexNoRadiusData =
getParamDataT<vec3f>("vertex.position");
if (vertexNoRadiusData) { // round, linear curves with constant radius
float radius = getParam<float>("radius", 0.01f);
curveType = (OSPCurveType)getParam<uint32_t>("type", OSP_ROUND);
curveBasis = (OSPCurveBasis)getParam<uint32_t>("basis", OSP_LINEAR);
if (curveMap[std::make_pair(curveType, curveBasis)].first
!= RTC_GEOMETRY_TYPE_ROUND_LINEAR_CURVE)
throw std::runtime_error(
"constant-radius curves need to be of type OSP_ROUND and have "
"basis OSP_LINEAR");
// To maintain OSPRay 2.x compatibility and keep support for
// the global 'radius' parameter, a vec4f vertex buffer copy
// has to be created. It specifies radius on per-vertex basis and
// is required by Embree. TODO: Refactor for OSPRay 3.x
DataT<vec4f> *dataT = (DataT<vec4f> *)new Data(
getISPCDevice(), OSP_VEC4F, vertexNoRadiusData->numItems);
for (size_t i = 0; i < dataT->size(); i++) {
const vec3f &v = (*vertexNoRadiusData)[i];
(*dataT)[i] = vec4f(v.x, v.y, v.z, radius);
}
vertexData = dataT;
dataT->refDec();
} else { // embree curves
vertexData = getParamDataT<vec4f>("vertex.position_radius", true);
curveType =
(OSPCurveType)getParam<uint32_t>("type", OSP_UNKNOWN_CURVE_TYPE);
if (curveType == OSP_UNKNOWN_CURVE_TYPE)
throw std::runtime_error("curves geometry has invalid 'type'");
curveBasis =
(OSPCurveBasis)getParam<uint32_t>("basis", OSP_UNKNOWN_CURVE_BASIS);
if (curveBasis == OSP_UNKNOWN_CURVE_BASIS)
throw std::runtime_error("curves geometry has invalid 'basis'");
if (curveType == OSP_RIBBON)
normalData = getParamDataT<vec3f>("vertex.normal", true);
if (curveBasis == OSP_HERMITE)
tangentData = getParamDataT<vec4f>("vertex.tangent", true);
}
colorData = getParamDataT<vec4f>("vertex.color");
auto curveEnums = curveMap[std::make_pair(curveType, curveBasis)];
embreeCurveType = curveEnums.first;
if (embreeCurveType == (RTCGeometryType)-1)
throw std::runtime_error("unsupported combination of 'type' and 'basis'");
createEmbreeGeometry();
getSh()->geom = embreeGeometry;
getSh()->flagMask = -1;
getSh()->super.numPrimitives = numPrimitives();
getSh()->curveType = curveType;
getSh()->curveBasis = curveBasis;
getSh()->index = *ispc(indexData);
if (!colorData) {
getSh()->flagMask &= ispc::int64(~DG_COLOR);
} else {
getSh()->color = *ispc(colorData);
}
if (!texcoordData) {
getSh()->flagMask &= ispc::int64(~DG_TEXCOORD);
} else {
getSh()->texcoord = *ispc(texcoordData);
}
postCreationInfo(vertexData->size());
featureFlagsGeometry = curveEnums.second;
}
size_t Curves::numPrimitives() const
{
return indexData->size();
}
void Curves::createEmbreeGeometry()
{
Geometry::createEmbreeGeometry(embreeCurveType);
Ref<const DataT<vec4f>> vertex4f(&vertexData->as<vec4f>());
setEmbreeGeometryBuffer(embreeGeometry, RTC_BUFFER_TYPE_VERTEX, vertex4f);
setEmbreeGeometryBuffer(embreeGeometry, RTC_BUFFER_TYPE_INDEX, indexData);
setEmbreeGeometryBuffer(embreeGeometry, RTC_BUFFER_TYPE_NORMAL, normalData);
setEmbreeGeometryBuffer(embreeGeometry, RTC_BUFFER_TYPE_TANGENT, tangentData);
if (colorData) {
rtcSetGeometryVertexAttributeCount(embreeGeometry, 1);
setEmbreeGeometryBuffer(
embreeGeometry, RTC_BUFFER_TYPE_VERTEX_ATTRIBUTE, colorData);
}
if (texcoordData) {
rtcSetGeometryVertexAttributeCount(embreeGeometry, 2);
setEmbreeGeometryBuffer(
embreeGeometry, RTC_BUFFER_TYPE_VERTEX_ATTRIBUTE, texcoordData, 1);
}
rtcCommitGeometry(embreeGeometry);
}
} // namespace ospray
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