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Merge branch 'amaranth' into 'master'

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Add polygon offset to decals in Skyrim models, reducing Z-fighting

See merge request OpenMW/openmw!3237
This commit is contained in:
psi29a 2023-07-21 09:12:28 +00:00
commit c80a8d5293
2 changed files with 28 additions and 0 deletions
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1
components/nif/property.hpp
View File

@ -141,6 +141,7 @@ namespace Nif
bool doubleSided() const { return (flags2 >> 4) & 1; }
bool treeAnim() const { return (flags2 >> 29) & 1; }
bool decal() const { return (flags1 >> 26) & 1; }
};
struct BSShaderLightingProperty : public BSShaderProperty

27
components/nifosg/nifloader.cpp
View File

@ -36,6 +36,7 @@
#include <osg/FrontFace>
#include <osg/Material>
#include <osg/PolygonMode>
#include <osg/PolygonOffset>
#include <osg/Stencil>
#include <osg/TexEnv>
#include <osg/TexEnvCombine>
@ -48,6 +49,7 @@
#include <components/nif/niffile.hpp>
#include <components/nif/node.hpp>
#include <components/nif/property.hpp>
#include <components/sceneutil/depth.hpp>
#include <components/sceneutil/morphgeometry.hpp>
#include <components/sceneutil/riggeometry.hpp>
#include <components/sceneutil/skeleton.hpp>
@ -2479,6 +2481,31 @@ namespace NifOsg
mat->setShininess(osg::Material::FRONT_AND_BACK, shaderprop->mGlossiness);
emissiveMult = shaderprop->mEmissiveMult;
specStrength = shaderprop->mSpecStrength;
if (shaderprop->decal())
{
osg::StateSet* stateset = node->getOrCreateStateSet();
if (!mPushedSorter && !hasSortAlpha)
stateset->setRenderBinDetails(1, "SORT_BACK_TO_FRONT");
osg::ref_ptr<osg::PolygonOffset> polygonOffset(new osg::PolygonOffset);
polygonOffset->setUnits(SceneUtil::AutoDepth::isReversed() ? 1.f : -1.f);
polygonOffset->setFactor(SceneUtil::AutoDepth::isReversed() ? 0.65f : -0.65f);
stateset->setAttributeAndModes(polygonOffset, osg::StateAttribute::ON);
}
break;
}
case Nif::RC_BSEffectShaderProperty:
{
auto shaderprop = static_cast<const Nif::BSEffectShaderProperty*>(property);
if (shaderprop->decal())
{
osg::StateSet* stateset = node->getOrCreateStateSet();
if (!mPushedSorter && !hasSortAlpha)
stateset->setRenderBinDetails(1, "SORT_BACK_TO_FRONT");
osg::ref_ptr<osg::PolygonOffset> polygonOffset(new osg::PolygonOffset);
polygonOffset->setUnits(SceneUtil::AutoDepth::isReversed() ? 1.f : -1.f);
polygonOffset->setFactor(SceneUtil::AutoDepth::isReversed() ? 0.65f : -0.65f);
stateset->setAttributeAndModes(polygonOffset, osg::StateAttribute::ON);
}
break;
}
default: