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Switch between DrawElementsUInt and DrawElementsUShort on demand

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pull/3236/head
Evil Eye 3 months ago
parent 5e16579793
commit 403189c711
1 changed files with 64 additions and 32 deletions
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96
components/sceneutil/pathgridutil.cpp
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@ -5,6 +5,8 @@
#include <components/esm3/loadpgrd.hpp>
#include <limits>
namespace SceneUtil
{
namespace
@ -40,24 +42,15 @@ namespace SceneUtil
const osg::Vec4f DiamondEdgeColor = osg::Vec4f(0.5f, 1.f, 1.f, 1.f);
const osg::Vec4f DiamondWireColor = osg::Vec4f(0.72f, 0.f, 0.96f, 1.f);
const osg::Vec4f DiamondFocusWireColor = osg::Vec4f(0.91f, 0.66f, 1.f, 1.f);
}
osg::ref_ptr<osg::Geometry> createPathgridGeometry(const ESM::Pathgrid& pathgrid)
{
const size_t vertexCount = pathgrid.mPoints.size() * DiamondTotalVertexCount;
const size_t pointIndexCount = pathgrid.mPoints.size() * DiamondIndexCount;
const size_t edgeIndexCount = pathgrid.mEdges.size() * 2;
osg::ref_ptr<osg::Geometry> gridGeometry = new osg::Geometry();
if (pointIndexCount || edgeIndexCount)
template <class PType, class LType>
void addPathgridToGeometry(const size_t vertexCount, const size_t pointIndexCount, const size_t edgeIndexCount,
osg::ref_ptr<osg::Geometry>& gridGeometry, const ESM::Pathgrid& pathgrid)
{
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array(vertexCount);
osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array(vertexCount);
osg::ref_ptr<osg::DrawElementsUInt> pointIndices
= new osg::DrawElementsUInt(osg::PrimitiveSet::TRIANGLES, pointIndexCount);
osg::ref_ptr<osg::DrawElementsUInt> lineIndices
= new osg::DrawElementsUInt(osg::PrimitiveSet::LINES, edgeIndexCount);
osg::ref_ptr<PType> pointIndices = new PType(osg::PrimitiveSet::TRIANGLES, pointIndexCount);
osg::ref_ptr<LType> lineIndices = new LType(osg::PrimitiveSet::LINES, edgeIndexCount);
// Add each point/node
for (size_t pointIndex = 0; pointIndex < pathgrid.mPoints.size(); ++pointIndex)
@ -140,27 +133,14 @@ namespace SceneUtil
gridGeometry->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
}
osg::ref_ptr<osg::Material> material = new osg::Material;
material->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE);
gridGeometry->getOrCreateStateSet()->setAttribute(material);
return gridGeometry;
}
osg::ref_ptr<osg::Geometry> createPathgridSelectedWireframe(
const ESM::Pathgrid& pathgrid, const std::vector<unsigned short>& selected)
{
const size_t vertexCount = selected.size() * DiamondVertexCount;
const size_t indexCount = selected.size() * DiamondWireframeIndexCount;
osg::ref_ptr<osg::Geometry> wireframeGeometry = new osg::Geometry();
if (indexCount)
template <class T>
void addWireFrameGeometry(const size_t vertexCount, const size_t indexCount,
osg::ref_ptr<osg::Geometry>& wireframeGeometry, const ESM::Pathgrid& pathgrid,
const std::vector<unsigned short>& selected)
{
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array(vertexCount);
osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array(vertexCount);
osg::ref_ptr<osg::DrawElementsUInt> indices
= new osg::DrawElementsUInt(osg::PrimitiveSet::LINES, indexCount);
osg::ref_ptr<T> indices = new T(osg::PrimitiveSet::LINES, indexCount);
osg::Vec3f wireOffset = osg::Vec3f(0, 0, (1 - DiamondWireframeScalar) * DiamondHalfHeight);
@ -195,6 +175,58 @@ namespace SceneUtil
wireframeGeometry->addPrimitiveSet(indices);
wireframeGeometry->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
}
}
osg::ref_ptr<osg::Geometry> createPathgridGeometry(const ESM::Pathgrid& pathgrid)
{
const size_t vertexCount = pathgrid.mPoints.size() * DiamondTotalVertexCount;
const size_t pointIndexCount = pathgrid.mPoints.size() * DiamondIndexCount;
const size_t edgeIndexCount = pathgrid.mEdges.size() * 2;
osg::ref_ptr<osg::Geometry> gridGeometry = new osg::Geometry();
if (pointIndexCount || edgeIndexCount)
{
const bool useIntPoints = pointIndexCount > std::numeric_limits<unsigned short>::max();
const bool useIntVertices = vertexCount > std::numeric_limits<unsigned short>::max();
if (useIntPoints && useIntVertices)
addPathgridToGeometry<osg::DrawElementsUInt, osg::DrawElementsUInt>(
vertexCount, pointIndexCount, edgeIndexCount, gridGeometry, pathgrid);
else if (useIntPoints)
addPathgridToGeometry<osg::DrawElementsUInt, osg::DrawElementsUShort>(
vertexCount, pointIndexCount, edgeIndexCount, gridGeometry, pathgrid);
else if (useIntVertices)
addPathgridToGeometry<osg::DrawElementsUShort, osg::DrawElementsUInt>(
vertexCount, pointIndexCount, edgeIndexCount, gridGeometry, pathgrid);
else
addPathgridToGeometry<osg::DrawElementsUShort, osg::DrawElementsUShort>(
vertexCount, pointIndexCount, edgeIndexCount, gridGeometry, pathgrid);
}
osg::ref_ptr<osg::Material> material = new osg::Material;
material->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE);
gridGeometry->getOrCreateStateSet()->setAttribute(material);
return gridGeometry;
}
osg::ref_ptr<osg::Geometry> createPathgridSelectedWireframe(
const ESM::Pathgrid& pathgrid, const std::vector<unsigned short>& selected)
{
const size_t vertexCount = selected.size() * DiamondVertexCount;
const size_t indexCount = selected.size() * DiamondWireframeIndexCount;
osg::ref_ptr<osg::Geometry> wireframeGeometry = new osg::Geometry();
if (indexCount)
{
if (vertexCount > std::numeric_limits<unsigned short>::max())
addWireFrameGeometry<osg::DrawElementsUInt>(
vertexCount, indexCount, wireframeGeometry, pathgrid, selected);
else
addWireFrameGeometry<osg::DrawElementsUShort>(
vertexCount, indexCount, wireframeGeometry, pathgrid, selected);
}
return wireframeGeometry;
}

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