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Added commandline support for Size and texcoord Multipliers

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This commit is contained in:
Robert Osfield
2004-09-03 15:42:43 +00:00
parent d7d83923f4
commit 6f1716a15b
1 changed files with 170 additions and 72 deletions
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242
examples/osgvolume/osgvolume.cpp
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@@ -278,7 +278,6 @@ osg::Image* createTexture3D(ImageList& imageList, ProcessRow& processRow, unsign
{
max_s = osg::maximum(image->s(), max_s);
max_t = osg::maximum(image->t(), max_t);
osg::notify(osg::NOTICE)<<"image, number of components"<<osg::Image::computeNumComponents(pixelFormat)<<std::endl;
max_components = osg::maximum(osg::Image::computeNumComponents(pixelFormat), max_components);
total_r += image->r();
}
@@ -332,9 +331,12 @@ osg::Image* createTexture3D(ImageList& imageList, ProcessRow& processRow, unsign
image_3d->allocateImage(s_nearestPowerOfTwo,t_nearestPowerOfTwo,r_nearestPowerOfTwo,
desiredPixelFormat,GL_UNSIGNED_BYTE);
int curr_dest_r = 0;
// copy across the values from the source imager into the image_3d.
unsigned int r_offset = (total_r<r_nearestPowerOfTwo) ? r_nearestPowerOfTwo/2 - total_r/2 : 0;
int curr_dest_r = r_offset;
// copy across the values from the source images into the image_3d.
for(itr=imageList.begin();
itr!=imageList.end();
++itr)
@@ -352,11 +354,14 @@ osg::Image* createTexture3D(ImageList& imageList, ProcessRow& processRow, unsign
int num_t = osg::minimum(image->t(), image_3d->t());
int num_s = osg::minimum(image->s(), image_3d->s());
unsigned int s_offset_dest = (image->s()<s_nearestPowerOfTwo) ? s_nearestPowerOfTwo/2 - image->s()/2 : 0;
unsigned int t_offset_dest = (image->t()<t_nearestPowerOfTwo) ? t_nearestPowerOfTwo/2 - image->t()/2 : 0;
for(int r=0;r<num_r;++r, ++curr_dest_r)
{
for(int t=0;t<num_t;++t)
{
unsigned char* dest = image_3d->data(0,t,curr_dest_r);
unsigned char* dest = image_3d->data(s_offset_dest,t+t_offset_dest,curr_dest_r);
unsigned char* source = image->data(0,t,r);
processRow(num_s, image->getPixelFormat(), source, image_3d->getPixelFormat(), dest);
@@ -500,41 +505,44 @@ osg::Node* createCube(float size,float alpha, unsigned int numSlices, float slic
return billboard;
}
osg::Node* createModel(osg::ref_ptr<osg::Image>& image_3d, bool createNormalMap, unsigned int numSlices=500,float sliceEnd=1.0f)
osg::Node* createModel(osg::ref_ptr<osg::Image>& image_3d, osg::ref_ptr<osg::Image>& bumpmap_3d,
float xSize, float ySize, float zSize,
float xMultiplier, float yMultiplier, float zMultiplier,
unsigned int numSlices=500, float sliceEnd=1.0f, float alphaFuncValue=0.02f)
{
unsigned int diffuse_unit = createNormalMap ? 1 : 0;
unsigned int bumpmap_unit = 0;
bool two_pass = bumpmap_3d.valid() && (image_3d->getPixelFormat()==GL_RGB || image_3d->getPixelFormat()==GL_RGBA);
osg::Group* group = new osg::Group;
osg::TexGenNode* texgenNode_0 = new osg::TexGenNode;
texgenNode_0->setTextureUnit(0);
texgenNode_0->getTexGen()->setMode(osg::TexGen::EYE_LINEAR);
texgenNode_0->getTexGen()->setPlane(osg::TexGen::S, osg::Vec4(1.0f,0.0f,0.0f,0.5f));
texgenNode_0->getTexGen()->setPlane(osg::TexGen::T, osg::Vec4(0.0f,1.0f,0.0f,0.5f));
texgenNode_0->getTexGen()->setPlane(osg::TexGen::R, osg::Vec4(0.0f,0.0f,2.0f,0.38f));
texgenNode_0->getTexGen()->setPlane(osg::TexGen::S, osg::Vec4(xMultiplier,0.0f,0.0f,0.5f));
texgenNode_0->getTexGen()->setPlane(osg::TexGen::T, osg::Vec4(0.0f,yMultiplier,0.0f,0.5f));
texgenNode_0->getTexGen()->setPlane(osg::TexGen::R, osg::Vec4(0.0f,0.0f,zMultiplier,0.5f));
#if 0
osg::TexGenNode* texgenNode_1 = new osg::TexGenNode;
texgenNode_1->setTextureUnit(1);
texgenNode_1->getTexGen()->setMode(osg::TexGen::EYE_LINEAR);
texgenNode_1->getTexGen()->setPlane(osg::TexGen::S, osg::Vec4(1.0f,0.0f,0.0f,0.5f));
texgenNode_1->getTexGen()->setPlane(osg::TexGen::T, osg::Vec4(0.0f,1.0f,0.0f,0.5f));
texgenNode_1->getTexGen()->setPlane(osg::TexGen::R, osg::Vec4(0.0f,0.0f,2.0f,1.0f));
if (two_pass)
{
osg::TexGenNode* texgenNode_1 = new osg::TexGenNode;
texgenNode_1->setTextureUnit(1);
texgenNode_1->getTexGen()->setMode(osg::TexGen::EYE_LINEAR);
texgenNode_1->getTexGen()->setPlane(osg::TexGen::S, texgenNode_0->getTexGen()->getPlane(osg::TexGen::S));
texgenNode_1->getTexGen()->setPlane(osg::TexGen::T, texgenNode_0->getTexGen()->getPlane(osg::TexGen::T));
texgenNode_1->getTexGen()->setPlane(osg::TexGen::R, texgenNode_0->getTexGen()->getPlane(osg::TexGen::R));
texgenNode_1->addChild(texgenNode_0);
texgenNode_1->addChild(texgenNode_0);
group->addChild(texgenNode_1);
group->addChild(texgenNode_1);
}
else
{
group->addChild(texgenNode_0);
}
#else
group->addChild(texgenNode_0);
#endif
osg::BoundingBox bb(-0.5f,-0.5f,-0.20f,0.5f,0.5f,0.20f);
osg::BoundingBox bb(-xSize*0.5f,-ySize*0.5f,-zSize*0.5f,xSize*0.5f,ySize*0.5f,zSize*0.5f);
osg::ClipNode* clipnode = new osg::ClipNode;
clipnode->addChild(createCube(1.0f,0.9f, numSlices,sliceEnd));
clipnode->addChild(createCube(1.0f,1.0f, numSlices,sliceEnd));
clipnode->createClipBox(bb);
{
@@ -573,13 +581,115 @@ osg::Node* createModel(osg::ref_ptr<osg::Image>& image_3d, bool createNormalMap,
stateset->setMode(GL_LIGHTING,osg::StateAttribute::ON);
stateset->setMode(GL_BLEND,osg::StateAttribute::ON);
stateset->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER,0.00f));
stateset->setAttribute(new osg::AlphaFunc(osg::AlphaFunc::GREATER,alphaFuncValue));
osg::Material* material = new osg::Material;
material->setDiffuse(osg::Material::FRONT_AND_BACK,osg::Vec4(1.0f,1.0f,1.0f,1.0f));
stateset->setAttributeAndModes(material);
osg::Vec3 lightDirection(1.0f,-1.0f,1.0f);
lightDirection.normalize();
if (!createNormalMap)
if (bumpmap_3d.valid())
{
if (two_pass)
{
// set up normal texture
osg::Texture3D* bump_texture3D = new osg::Texture3D;
bump_texture3D->setFilter(osg::Texture3D::MIN_FILTER,osg::Texture3D::LINEAR);
bump_texture3D->setFilter(osg::Texture3D::MAG_FILTER,osg::Texture3D::LINEAR);
bump_texture3D->setWrap(osg::Texture3D::WRAP_R,osg::Texture3D::CLAMP);
bump_texture3D->setWrap(osg::Texture3D::WRAP_S,osg::Texture3D::CLAMP);
bump_texture3D->setWrap(osg::Texture3D::WRAP_T,osg::Texture3D::CLAMP);
bump_texture3D->setImage(bumpmap_3d.get());
stateset->setTextureAttributeAndModes(0,bump_texture3D,osg::StateAttribute::ON);
osg::TexEnvCombine* tec = new osg::TexEnvCombine;
tec->setConstantColorAsLightDirection(lightDirection);
tec->setCombine_RGB(osg::TexEnvCombine::DOT3_RGB);
tec->setSource0_RGB(osg::TexEnvCombine::CONSTANT);
tec->setOperand0_RGB(osg::TexEnvCombine::SRC_COLOR);
tec->setSource1_RGB(osg::TexEnvCombine::TEXTURE);
tec->setOperand1_RGB(osg::TexEnvCombine::SRC_COLOR);
tec->setCombine_Alpha(osg::TexEnvCombine::REPLACE);
tec->setSource0_Alpha(osg::TexEnvCombine::PRIMARY_COLOR);
tec->setOperand0_Alpha(osg::TexEnvCombine::SRC_ALPHA);
tec->setSource1_Alpha(osg::TexEnvCombine::TEXTURE);
tec->setOperand1_Alpha(osg::TexEnvCombine::SRC_ALPHA);
stateset->setTextureAttributeAndModes(0, tec, osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_S,osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_T,osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_R,osg::StateAttribute::ON);
// set up color texture
osg::Texture3D* texture3D = new osg::Texture3D;
texture3D->setFilter(osg::Texture3D::MIN_FILTER,osg::Texture3D::LINEAR);
texture3D->setFilter(osg::Texture3D::MAG_FILTER,osg::Texture3D::LINEAR);
texture3D->setWrap(osg::Texture3D::WRAP_R,osg::Texture3D::CLAMP);
texture3D->setWrap(osg::Texture3D::WRAP_S,osg::Texture3D::CLAMP);
texture3D->setWrap(osg::Texture3D::WRAP_T,osg::Texture3D::CLAMP);
if (image_3d->getPixelFormat()==GL_ALPHA ||
image_3d->getPixelFormat()==GL_LUMINANCE)
{
texture3D->setInternalFormatMode(osg::Texture3D::USE_USER_DEFINED_FORMAT);
texture3D->setInternalFormat(GL_INTENSITY);
}
texture3D->setImage(image_3d.get());
stateset->setTextureAttributeAndModes(1,texture3D,osg::StateAttribute::ON);
stateset->setTextureMode(1,GL_TEXTURE_GEN_S,osg::StateAttribute::ON);
stateset->setTextureMode(1,GL_TEXTURE_GEN_T,osg::StateAttribute::ON);
stateset->setTextureMode(1,GL_TEXTURE_GEN_R,osg::StateAttribute::ON);
stateset->setTextureAttributeAndModes(1,new osg::TexEnv(),osg::StateAttribute::ON);
}
else
{
osg::ref_ptr<osg::Image> bumpmap_3d = createNormalMapTexture(image_3d.get());
osg::Texture3D* bump_texture3D = new osg::Texture3D;
bump_texture3D->setFilter(osg::Texture3D::MIN_FILTER,osg::Texture3D::LINEAR);
bump_texture3D->setFilter(osg::Texture3D::MAG_FILTER,osg::Texture3D::LINEAR);
bump_texture3D->setWrap(osg::Texture3D::WRAP_R,osg::Texture3D::CLAMP);
bump_texture3D->setWrap(osg::Texture3D::WRAP_S,osg::Texture3D::CLAMP);
bump_texture3D->setWrap(osg::Texture3D::WRAP_T,osg::Texture3D::CLAMP);
bump_texture3D->setImage(bumpmap_3d.get());
stateset->setTextureAttributeAndModes(0,bump_texture3D,osg::StateAttribute::ON);
osg::TexEnvCombine* tec = new osg::TexEnvCombine;
tec->setConstantColorAsLightDirection(lightDirection);
tec->setCombine_RGB(osg::TexEnvCombine::DOT3_RGB);
tec->setSource0_RGB(osg::TexEnvCombine::CONSTANT);
tec->setOperand0_RGB(osg::TexEnvCombine::SRC_COLOR);
tec->setSource1_RGB(osg::TexEnvCombine::TEXTURE);
tec->setOperand1_RGB(osg::TexEnvCombine::SRC_COLOR);
tec->setCombine_Alpha(osg::TexEnvCombine::MODULATE);
tec->setSource0_Alpha(osg::TexEnvCombine::PRIMARY_COLOR);
tec->setOperand0_Alpha(osg::TexEnvCombine::SRC_ALPHA);
tec->setSource1_Alpha(osg::TexEnvCombine::TEXTURE);
tec->setOperand1_Alpha(osg::TexEnvCombine::SRC_ALPHA);
stateset->setTextureAttributeAndModes(0, tec, osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_S,osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_T,osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_R,osg::StateAttribute::ON);
image_3d = bumpmap_3d;
}
}
else
{
// set up the 3d texture itself,
// note, well set the filtering up so that mip mapping is disabled,
@@ -599,49 +709,13 @@ osg::Node* createModel(osg::ref_ptr<osg::Image>& image_3d, bool createNormalMap,
}
texture3D->setImage(image_3d.get());
stateset->setTextureAttributeAndModes(diffuse_unit,texture3D,osg::StateAttribute::ON);
stateset->setTextureAttributeAndModes(0,texture3D,osg::StateAttribute::ON);
stateset->setTextureMode(diffuse_unit,GL_TEXTURE_GEN_S,osg::StateAttribute::ON);
stateset->setTextureMode(diffuse_unit,GL_TEXTURE_GEN_T,osg::StateAttribute::ON);
stateset->setTextureMode(diffuse_unit,GL_TEXTURE_GEN_R,osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_S,osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_T,osg::StateAttribute::ON);
stateset->setTextureMode(0,GL_TEXTURE_GEN_R,osg::StateAttribute::ON);
stateset->setTextureAttributeAndModes(diffuse_unit,new osg::TexEnv(),osg::StateAttribute::ON);
}
else
{
osg::ref_ptr<osg::Image> bumpmap_3d = createNormalMapTexture(image_3d.get());
osg::Texture3D* bump_texture3D = new osg::Texture3D;
bump_texture3D->setFilter(osg::Texture3D::MIN_FILTER,osg::Texture3D::LINEAR);
bump_texture3D->setFilter(osg::Texture3D::MAG_FILTER,osg::Texture3D::LINEAR);
bump_texture3D->setWrap(osg::Texture3D::WRAP_R,osg::Texture3D::CLAMP);
bump_texture3D->setWrap(osg::Texture3D::WRAP_S,osg::Texture3D::CLAMP);
bump_texture3D->setWrap(osg::Texture3D::WRAP_T,osg::Texture3D::CLAMP);
bump_texture3D->setImage(bumpmap_3d.get());
stateset->setTextureAttributeAndModes(bumpmap_unit,bump_texture3D,osg::StateAttribute::ON);
osg::TexEnvCombine* tec = new osg::TexEnvCombine;
tec->setConstantColor(osg::Vec4(0.0f,0.7f,0.7f,1.0f));
tec->setCombine_RGB(osg::TexEnvCombine::DOT3_RGB);
tec->setSource0_RGB(osg::TexEnvCombine::CONSTANT);
tec->setOperand0_RGB(osg::TexEnvCombine::SRC_COLOR);
tec->setSource1_RGB(osg::TexEnvCombine::TEXTURE);
tec->setOperand1_RGB(osg::TexEnvCombine::SRC_COLOR);
tec->setCombine_Alpha(osg::TexEnvCombine::MODULATE);
tec->setSource0_Alpha(osg::TexEnvCombine::PRIMARY_COLOR);
tec->setOperand0_Alpha(osg::TexEnvCombine::SRC_ALPHA);
tec->setSource1_Alpha(osg::TexEnvCombine::TEXTURE);
tec->setOperand1_Alpha(osg::TexEnvCombine::SRC_ALPHA);
stateset->setTextureAttributeAndModes(bumpmap_unit, tec, osg::StateAttribute::OVERRIDE|osg::StateAttribute::ON);
stateset->setTextureMode(bumpmap_unit,GL_TEXTURE_GEN_S,osg::StateAttribute::ON);
stateset->setTextureMode(bumpmap_unit,GL_TEXTURE_GEN_T,osg::StateAttribute::ON);
stateset->setTextureMode(bumpmap_unit,GL_TEXTURE_GEN_R,osg::StateAttribute::ON);
image_3d = bumpmap_3d;
stateset->setTextureAttributeAndModes(0,new osg::TexEnv(),osg::StateAttribute::ON);
}
return group;
@@ -658,8 +732,14 @@ int main( int argc, char **argv )
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use of 3D textures.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
arguments.getApplicationUsage()->addCommandLineOption("-n","create normal map for per voxel lighting.");
arguments.getApplicationUsage()->addCommandLineOption("-s","num of slices to create.");
arguments.getApplicationUsage()->addCommandLineOption("-n","Create normal map for per voxel lighting.");
arguments.getApplicationUsage()->addCommandLineOption("-s","Number of slices to create.");
arguments.getApplicationUsage()->addCommandLineOption("--xSize","Relative width of rendered brick.");
arguments.getApplicationUsage()->addCommandLineOption("--ySize","Relative length of rendered brick.");
arguments.getApplicationUsage()->addCommandLineOption("--zSize","Relative height of rendered brick.");
arguments.getApplicationUsage()->addCommandLineOption("--xMultiplier","Tex coord x mulitplier.");
arguments.getApplicationUsage()->addCommandLineOption("--yMultiplier","Tex coord y mulitplier.");
arguments.getApplicationUsage()->addCommandLineOption("--zMultiplier","Tex coord z mulitplier.");
arguments.getApplicationUsage()->addCommandLineOption("--clip","clip volume as a ratio, 0.0 clip all, 1.0 clip none.");
@@ -690,10 +770,23 @@ int main( int argc, char **argv )
float sliceEnd=1.0f;
while (arguments.read("--clip",sliceEnd)) {}
float alphaFunc=0.02f;
while (arguments.read("--alphaFunc",alphaFunc)) {}
bool createNormalMap = false;
while (arguments.read("-n")) createNormalMap=true;
float xSize=1.0f, ySize=1.0f, zSize=1.0f;
while (arguments.read("--xSize",xSize)) {}
while (arguments.read("--ySize",ySize)) {}
while (arguments.read("--zSize",zSize)) {}
float xMultiplier=1.0f, yMultiplier=1.0f, zMultiplier=1.0f;
while (arguments.read("--xMultiplier",xMultiplier)) {}
while (arguments.read("--yMultiplier",yMultiplier)) {}
while (arguments.read("--zMultiplier",zMultiplier)) {}
osg::ref_ptr<osg::Image> image_3d;
@@ -739,8 +832,13 @@ int main( int argc, char **argv )
if (!image_3d) return 0;
osg::ref_ptr<osg::Image> bumpmap_3d = createNormalMap ? createNormalMapTexture(image_3d.get()) : 0;
// create a model from the images.
osg::Node* rootNode = createModel(image_3d, createNormalMap, numSlices, sliceEnd);
osg::Node* rootNode = createModel(image_3d, bumpmap_3d,
xSize, ySize, zSize,
xMultiplier, yMultiplier, zMultiplier,
numSlices, sliceEnd, alphaFunc);
if (!outputFile.empty())
{