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From Brede Johansen, "This submission adds multitexture support for detecting translucent

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images used to enable alpha blending.

Mesh was syncronized with featureset from Face record."
This commit is contained in:
Robert Osfield 2006-10-03 09:55:28 +00:00
parent e686a9a4a5
commit 392232ec06
1 changed files with 110 additions and 58 deletions
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168
src/osgPlugins/OpenFlight/GeometryRecords.cpp
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@ -46,7 +46,12 @@ class Face : public PrimaryRecord
public:
Face() :
_primaryColor(1,1,1,1)
_primaryColor(1,1,1,1),
_drawFlag(SOLID_NO_BACKFACE),
_template(FIXED_NO_ALPHA_BLENDING),
_transparency(0),
_flags(0),
_lightMode(FACE_COLOR)
{
}
@ -208,7 +213,7 @@ protected:
std::string id = in.readString(8);
/*int32 IRColor =*/ in.readInt32();
/*int16 relativePriority =*/ in.readInt16();
_drawFlag = in.readUInt8();
_drawFlag = in.readUInt8(SOLID_NO_BACKFACE);
uint8 texturedWhite = in.readUInt8();
int16 primaryNameIndex = in.readInt16(-1);
/*int16 secondaryNameIndex =*/ in.readInt16(-1);
@ -298,14 +303,12 @@ protected:
stateset->setMode(GL_LIGHTING, isLit() ? osg::StateAttribute::ON : osg::StateAttribute::OFF);
// Material
bool isTransparentMaterial = false;
if (isLit())
{
osg::Vec4 col = _primaryColor;
col.a() = 1.0f - getTransparency();
osg::Material* material = document.getOrCreateMaterialPool()->getOrCreateMaterial(materialIndex,col);
stateset->setAttribute(material);
isTransparentMaterial = material->getDiffuse(osg::Material::FRONT).a() < 0.99f;
}
// Shaders
@ -326,30 +329,6 @@ protected:
stateset->merge(*textureStateSet);
}
// Translucent image?
bool isImageTranslucent = false;
if (textureStateSet)
{
if (document.getUseTextureAlphaForTransparancyBinning())
{
osg::Texture2D* texture = dynamic_cast<osg::Texture2D*>(textureStateSet->getTextureAttribute(0,osg::StateAttribute::TEXTURE));
if (texture)
{
osg::Image* image = texture->getImage();
if (image && image->isImageTranslucent())
isImageTranslucent = true;
}
}
}
// Enable alpha blend?
if (isAlphaBlend() || isTransparent() || isTransparentMaterial || isImageTranslucent)
{
static osg::ref_ptr<osg::BlendFunc> blendFunc = new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA);
stateset->setAttributeAndModes(blendFunc.get(), osg::StateAttribute::ON);
stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
}
// Cull face
switch(_drawFlag)
{
@ -466,6 +445,41 @@ protected:
}
}
osg::StateSet* stateset = _geode->getOrCreateStateSet();
// Translucent image?
bool isImageTranslucent = false;
if (document.getUseTextureAlphaForTransparancyBinning())
{
for (unsigned int i=0; i<stateset->getTextureAttributeList().size(); ++i)
{
osg::StateAttribute* sa = stateset->getTextureAttribute(i,osg::StateAttribute::TEXTURE);
osg::Texture2D* texture = dynamic_cast<osg::Texture2D*>(sa);
if (texture)
{
osg::Image* image = texture->getImage();
if (image && image->isImageTranslucent())
isImageTranslucent = true;
}
}
}
// Transparent Material?
bool isMaterialTransparent = false;
osg::Material* material = dynamic_cast<osg::Material*>(stateset->getAttribute(osg::StateAttribute::MATERIAL));
if (material)
{
isMaterialTransparent = material->getDiffuse(osg::Material::FRONT).a() < 0.99f;
}
// Enable alpha blend?
if (isAlphaBlend() || isTransparent() || isImageTranslucent || isMaterialTransparent)
{
static osg::ref_ptr<osg::BlendFunc> blendFunc = new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA);
stateset->setAttributeAndModes(blendFunc.get(), osg::StateAttribute::ON);
stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
}
if (document.getUseBillboardCenter())
{
// Set billboard rotation point to center of face.
@ -659,12 +673,16 @@ class Mesh : public PrimaryRecord
uint8 _lightMode;
osg::ref_ptr<osg::Geode> _geode;
osg::ref_ptr<osg::Geometry> _geometry;
public:
Mesh() :
_primaryColor(1,1,1,1)
_primaryColor(1,1,1,1),
_drawFlag(SOLID_NO_BACKFACE),
_template(FIXED_NO_ALPHA_BLENDING),
_transparency(0),
_flags(0),
_lightMode(FACE_COLOR)
{
}
@ -754,7 +772,7 @@ protected:
in.forward(4);
/*int32 IRColor =*/ in.readInt32();
/*int16 relativePriority =*/ in.readInt16();
_drawFlag = in.readUInt8();
_drawFlag = in.readUInt8(SOLID_NO_BACKFACE);
uint8 texturedWhite = in.readUInt8();
int16 primaryNameIndex = in.readInt16(-1);
/*int16 secondaryNameIndex =*/ in.readInt16(-1);
@ -840,14 +858,12 @@ protected:
stateset->setMode(GL_LIGHTING, isLit() ? osg::StateAttribute::ON : osg::StateAttribute::OFF);
// Material
bool isTransparentMaterial = false;
if (isLit())
{
osg::Vec4 col = _primaryColor;
col.a() = 1.0f - getTransparency();
osg::Material* material = document.getOrCreateMaterialPool()->getOrCreateMaterial(materialIndex,col);
stateset->setAttribute(material);
isTransparentMaterial = material->getDiffuse(osg::Material::FRONT).a() < 0.99f;
}
// Shaders
@ -868,30 +884,6 @@ protected:
stateset->merge(*textureStateSet);
}
// Translucent image?
bool isImageTranslucent = false;
if (textureStateSet)
{
if (document.getUseTextureAlphaForTransparancyBinning())
{
osg::Texture2D* texture = dynamic_cast<osg::Texture2D*>(textureStateSet->getTextureAttribute(0,osg::StateAttribute::TEXTURE));
if (texture)
{
osg::Image* image = texture->getImage();
if (image && image->isImageTranslucent())
isImageTranslucent = true;
}
}
}
// Enable alpha blend?
if (isAlphaBlend() || isTransparent() || isTransparentMaterial || isImageTranslucent)
{
static osg::ref_ptr<osg::BlendFunc> blendFunc = new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA);
stateset->setAttributeAndModes(blendFunc.get(), osg::StateAttribute::ON);
stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
}
// Cull face
switch(_drawFlag)
{
@ -932,7 +924,67 @@ protected:
_parent->addChild(*_geode);
}
virtual ~Mesh() {}
virtual void popLevel(Document& document)
{
if (_geode.valid())
{
osg::StateSet* stateset = _geode->getOrCreateStateSet();
// Translucent image?
bool isImageTranslucent = false;
if (document.getUseTextureAlphaForTransparancyBinning())
{
for (unsigned int i=0; i<stateset->getTextureAttributeList().size(); ++i)
{
osg::StateAttribute* sa = stateset->getTextureAttribute(i,osg::StateAttribute::TEXTURE);
osg::Texture2D* texture = dynamic_cast<osg::Texture2D*>(sa);
if (texture)
{
osg::Image* image = texture->getImage();
if (image && image->isImageTranslucent())
isImageTranslucent = true;
}
}
}
// Transparent Material?
bool isMaterialTransparent = false;
osg::Material* material = dynamic_cast<osg::Material*>(stateset->getAttribute(osg::StateAttribute::MATERIAL));
if (material)
{
isMaterialTransparent = material->getDiffuse(osg::Material::FRONT).a() < 0.99f;
}
// Enable alpha blend?
if (isAlphaBlend() || isTransparent() || isImageTranslucent || isMaterialTransparent)
{
static osg::ref_ptr<osg::BlendFunc> blendFunc = new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA);
stateset->setAttributeAndModes(blendFunc.get(), osg::StateAttribute::ON);
stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
}
if (document.getUseBillboardCenter())
{
// Set billboard rotation point to center of face.
osg::Billboard* billboard = dynamic_cast<osg::Billboard*>(_geode.get());
if (billboard)
{
for (unsigned int i=0; i<billboard->getNumDrawables(); ++i)
{
osg::BoundingBox bb = billboard->getDrawable(i)->getBound();
billboard->setPosition(i,bb.center());
osgUtil::TransformAttributeFunctor tf(osg::Matrix::translate(-bb.center()));
billboard->getDrawable(i)->accept(tf);
billboard->getDrawable(i)->dirtyBound();
}
billboard->dirtyBound();
}
}
}
}
};
RegisterRecordProxy<Mesh> g_Mesh(MESH_OP);