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Optimize terrain editing brush drawing performance

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This commit is contained in:
unelsson 2021-09-18 15:57:00 +03:00
parent b6f572578e
commit 70e210735a
1 changed files with 12 additions and 2 deletions
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14
apps/opencs/view/render/brushdraw.cpp
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@ -18,6 +18,8 @@ CSVRender::BrushDraw::BrushDraw(osg::ref_ptr<osg::Group> parentNode, bool textur
mBrushDrawNode = new osg::Group();
mGeometry = new osg::Geometry();
mBrushDrawNode->addChild(mGeometry);
mBrushDrawNode->getOrCreateStateSet()->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
mBrushDrawNode->getOrCreateStateSet()->setRenderBinDetails(11, "RenderBin");
mParentNode->addChild(mBrushDrawNode);
if (mTextureMode)
mLandSizeFactor = static_cast<float>(ESM::Land::REAL_SIZE) / static_cast<float>(ESM::Land::LAND_TEXTURE_SIZE);
@ -122,7 +124,14 @@ void CSVRender::BrushDraw::buildSquareGeometry(const float& radius, const osg::V
const float brushOutlineHeight (1.0f);
float diameter = radius * 2;
int resolution = static_cast<int>(2.f * diameter / mLandSizeFactor); //half a vertex resolution
float resAdjustedLandSizeFactor = mLandSizeFactor / 2;
float resAdjustedLandSizeFactor = mLandSizeFactor / 2; //128
if (resolution > 128) // limit accuracy for performance
{
resolution = 128;
resAdjustedLandSizeFactor = diameter / resolution;
}
osg::Vec4f lineColor(1.0f, 1.0f, 1.0f, 0.6f);
for (int i = 0; i < resolution; i++)
@ -215,7 +224,8 @@ void CSVRender::BrushDraw::buildCircleGeometry(const float& radius, const osg::V
osg::ref_ptr<osg::Geometry> geom (new osg::Geometry());
osg::ref_ptr<osg::Vec3Array> vertices (new osg::Vec3Array());
osg::ref_ptr<osg::Vec4Array> colors (new osg::Vec4Array());
const int amountOfPoints = (osg::PI * 2.0f) * radius / 20;
const int amountOfPoints = 128;
const float step ((osg::PI * 2.0f) / static_cast<float>(amountOfPoints));
const float brushOutlineHeight (1.0f);
osg::Vec4f lineColor(1.0f, 1.0f, 1.0f, 0.6f);