本文整理汇总了C++中ImageLayer::getColorFilters方法的典型用法代码示例。如果您正苦于以下问题：C++ ImageLayer::getColorFilters方法的具体用法？C++ ImageLayer::getColorFilters怎么用？C++ ImageLayer::getColorFilters使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ImageLayer的用法示例。
在下文中一共展示了ImageLayer::getColorFilters方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Depth
// Generates the main shader code for rendering the terrain.
void
MPTerrainEngineNode::updateState()
{
if ( _batchUpdateInProgress )
{
_stateUpdateRequired = true;
}
else
{
if ( _elevationTextureUnit < 0 && elevationTexturesRequired() )
{
getResources()->reserveTextureImageUnit( _elevationTextureUnit, "MP Engine Elevation" );
}
osg::StateSet* terrainStateSet = getTerrainStateSet();
// required for multipass tile rendering to work
terrainStateSet->setAttributeAndModes(
new osg::Depth(osg::Depth::LEQUAL, 0, 1, true) );
// activate standard mix blending.
terrainStateSet->setAttributeAndModes(
new osg::BlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA),
osg::StateAttribute::ON );
// install shaders, if we're using them.
if ( Registry::capabilities().supportsGLSL() )
{
VirtualProgram* vp = new VirtualProgram();
vp->setName( "osgEarth.engine_mp.TerrainNode" );
terrainStateSet->setAttributeAndModes( vp, osg::StateAttribute::ON );
// bind the vertex attributes generated by the tile compiler.
vp->addBindAttribLocation( "oe_terrain_attr", osg::Drawable::ATTRIBUTE_6 );
vp->addBindAttribLocation( "oe_terrain_attr2", osg::Drawable::ATTRIBUTE_7 );
Shaders package;
package.replace( "$MP_PRIMARY_UNIT", Stringify() << _primaryUnit );
package.replace( "$MP_SECONDARY_UNIT", Stringify() << (_secondaryUnit>=0?_secondaryUnit:0) );
package.define( "MP_USE_BLENDING", (_terrainOptions.enableBlending() == true) );
package.loadFunction( vp, package.VertexModel );
package.loadFunction( vp, package.VertexView );
package.loadFunction( vp, package.Fragment );
// terrain background color; negative means use the vertex color.
Color terrainColor = _terrainOptions.color().getOrUse( Color(1,1,1,-1) );
terrainStateSet->addUniform(new osg::Uniform("oe_terrain_color", terrainColor));
// assemble color filter code snippets.
bool haveColorFilters = false;
{
// Color filter frag function:
std::string fs_colorfilters =
"#version " GLSL_VERSION_STR "\n"
GLSL_DEFAULT_PRECISION_FLOAT "\n"
"uniform int oe_layer_uid; \n"
"$COLOR_FILTER_HEAD"
"void oe_mp_apply_filters(inout vec4 color) \n"
"{ \n"
"$COLOR_FILTER_BODY"
"} \n";
std::stringstream cf_head;
std::stringstream cf_body;
const char* I = " ";
// second, install the per-layer color filter functions AND shared layer bindings.
bool ifStarted = false;
int numImageLayers = _update_mapf->imageLayers().size();
for( int i=0; i<numImageLayers; ++i )
{
ImageLayer* layer = _update_mapf->getImageLayerAt(i);
if ( layer->getEnabled() )
{
// install Color Filter function calls:
const ColorFilterChain& chain = layer->getColorFilters();
if ( chain.size() > 0 )
{
haveColorFilters = true;
if ( ifStarted ) cf_body << I << "else if ";
else cf_body << I << "if ";
cf_body << "(oe_layer_uid == " << layer->getUID() << ") {\n";
for( ColorFilterChain::const_iterator j = chain.begin(); j != chain.end(); ++j )
{
const ColorFilter* filter = j->get();
cf_head << "void " << filter->getEntryPointFunctionName() << "(inout vec4 color);\n";
cf_body << I << I << filter->getEntryPointFunctionName() << "(color);\n";
filter->install( terrainStateSet );
}
cf_body << I << "}\n";
ifStarted = true;
}
}
}
//.........这里部分代码省略.........
示例2: Depth
//.........这里部分代码省略.........
#ifdef HAVE_OSG_PATCH_PARAMETER
landCoverStateSet->setAttributeAndModes( new osg::PatchParameter(3) );
#endif
}
}
// assemble color filter code snippets.
bool haveColorFilters = false;
{
// Color filter frag function:
std::string fs_colorfilters =
"#version " GLSL_VERSION_STR "\n"
GLSL_DEFAULT_PRECISION_FLOAT "\n"
"uniform int oe_layer_uid; \n"
"$COLOR_FILTER_HEAD"
"void oe_rexEngine_applyFilters(inout vec4 color) \n"
"{ \n"
"$COLOR_FILTER_BODY"
"} \n";
std::stringstream cf_head;
std::stringstream cf_body;
const char* I = " ";
// second, install the per-layer color filter functions AND shared layer bindings.
bool ifStarted = false;
int numImageLayers = _update_mapf->imageLayers().size();
for( int i=0; i<numImageLayers; ++i )
{
ImageLayer* layer = _update_mapf->getImageLayerAt(i);
if ( layer->getEnabled() )
{
// install Color Filter function calls:
const ColorFilterChain& chain = layer->getColorFilters();
if ( chain.size() > 0 )
{
haveColorFilters = true;
if ( ifStarted ) cf_body << I << "else if ";
else cf_body << I << "if ";
cf_body << "(oe_layer_uid == " << layer->getUID() << ") {\n";
for( ColorFilterChain::const_iterator j = chain.begin(); j != chain.end(); ++j )
{
const ColorFilter* filter = j->get();
cf_head << "void " << filter->getEntryPointFunctionName() << "(inout vec4 color);\n";
cf_body << I << I << filter->getEntryPointFunctionName() << "(color);\n";
filter->install( surfaceStateSet );
}
cf_body << I << "}\n";
ifStarted = true;
}
}
}
if ( haveColorFilters )
{
std::string cf_head_str, cf_body_str;
cf_head_str = cf_head.str();
cf_body_str = cf_body.str();
replaceIn( fs_colorfilters, "$COLOR_FILTER_HEAD", cf_head_str );
replaceIn( fs_colorfilters, "$COLOR_FILTER_BODY", cf_body_str );
surfaceVP->setFunction(
"oe_rexEngine_applyFilters",
fs_colorfilters,
ShaderComp::LOCATION_FRAGMENT_COLORING,示例3: Depth
//.........这里部分代码省略.........
" color = texel; \n"
"} \n";
// Color filter frag function:
std::string fs_colorfilters =
"#version " GLSL_VERSION_STR "\n"
GLSL_DEFAULT_PRECISION_FLOAT "\n"
"uniform int oe_layer_uid; \n"
"__COLOR_FILTER_HEAD__"
"void oe_mp_apply_filters(inout vec4 color) \n"
"{ \n"
"__COLOR_FILTER_BODY__"
"} \n";
vp->setFunction( "oe_mp_setup_coloring", vs, ShaderComp::LOCATION_VERTEX_MODEL, 0.0 );
vp->setFunction( "oe_mp_apply_coloring", fs, ShaderComp::LOCATION_FRAGMENT_COLORING, 0.0 );
// assemble color filter code snippets.
bool haveColorFilters = false;
{
std::stringstream cf_head;
std::stringstream cf_body;
const char* I = " ";
// second, install the per-layer color filter functions AND shared layer bindings.
bool ifStarted = false;
int numImageLayers = _update_mapf->imageLayers().size();
for( int i=0; i<numImageLayers; ++i )
{
ImageLayer* layer = _update_mapf->getImageLayerAt(i);
if ( layer->getEnabled() )
{
// install Color Filter function calls:
const ColorFilterChain& chain = layer->getColorFilters();
if ( chain.size() > 0 )
{
haveColorFilters = true;
if ( ifStarted ) cf_body << I << "else if ";
else cf_body << I << "if ";
cf_body << "(oe_layer_uid == " << layer->getUID() << ") {\n";
for( ColorFilterChain::const_iterator j = chain.begin(); j != chain.end(); ++j )
{
const ColorFilter* filter = j->get();
cf_head << "void " << filter->getEntryPointFunctionName() << "(inout vec4 color);\n";
cf_body << I << I << filter->getEntryPointFunctionName() << "(color);\n";
filter->install( terrainStateSet );
}
cf_body << I << "}\n";
ifStarted = true;
}
}
}
if ( haveColorFilters )
{
std::string cf_head_str, cf_body_str;
cf_head_str = cf_head.str();
cf_body_str = cf_body.str();
replaceIn( fs_colorfilters, "__COLOR_FILTER_HEAD__", cf_head_str );
replaceIn( fs_colorfilters, "__COLOR_FILTER_BODY__", cf_body_str );
vp->setFunction( "oe_mp_apply_filters", fs_colorfilters, ShaderComp::LOCATION_FRAGMENT_COLORING, 0.0 );
}
}
示例4: Depth
//.........这里部分代码省略.........
surfaceStateSet->setDefine("OE_TERRAIN_MORPH_GEOMETRY");
}
}
// assemble color filter code snippets.
bool haveColorFilters = false;
{
// Color filter frag function:
std::string fs_colorfilters =
"#version " GLSL_VERSION_STR "\n"
GLSL_DEFAULT_PRECISION_FLOAT "\n"
"uniform int oe_layer_uid; \n"
"$COLOR_FILTER_HEAD"
"void oe_rexEngine_applyFilters(inout vec4 color) \n"
"{ \n"
"$COLOR_FILTER_BODY"
"} \n";
std::stringstream cf_head;
std::stringstream cf_body;
const char* I = " ";
// second, install the per-layer color filter functions AND shared layer bindings.
bool ifStarted = false;
ImageLayerVector imageLayers;
_update_mapf->getLayers(imageLayers);
for( int i=0; i<imageLayers.size(); ++i )
{
ImageLayer* layer = imageLayers.at(i);
if ( layer->getEnabled() )
{
// install Color Filter function calls:
const ColorFilterChain& chain = layer->getColorFilters();
if ( chain.size() > 0 )
{
haveColorFilters = true;
if ( ifStarted ) cf_body << I << "else if ";
else cf_body << I << "if ";
cf_body << "(oe_layer_uid == " << layer->getUID() << ") {\n";
for( ColorFilterChain::const_iterator j = chain.begin(); j != chain.end(); ++j )
{
const ColorFilter* filter = j->get();
cf_head << "void " << filter->getEntryPointFunctionName() << "(inout vec4 color);\n";
cf_body << I << I << filter->getEntryPointFunctionName() << "(color);\n";
filter->install( surfaceStateSet );
}
cf_body << I << "}\n";
ifStarted = true;
}
}
}
if ( haveColorFilters )
{
std::string cf_head_str, cf_body_str;
cf_head_str = cf_head.str();
cf_body_str = cf_body.str();
replaceIn( fs_colorfilters, "$COLOR_FILTER_HEAD", cf_head_str );
replaceIn( fs_colorfilters, "$COLOR_FILTER_BODY", cf_body_str );
surfaceVP->setFunction(
"oe_rexEngine_applyFilters",
fs_colorfilters,
ShaderComp::LOCATION_FRAGMENT_COLORING,示例5: BlendFunc
//.........这里部分代码省略.........
replaceIn( vs, "__GL_MULTITEXCOORD1__", Stringify() << "gl_MultiTexCoord" << _primaryUnit );
replaceIn( vs, "__GL_MULTITEXCOORD2__", Stringify() << "gl_MultiTexCoord" << _secondaryUnit );
vp->setFunction( "oe_mp_setup_coloring", vs, ShaderComp::LOCATION_VERTEX_MODEL, 0.0 );
if ( _terrainOptions.premultipliedAlpha() == true )
vp->setFunction( "oe_mp_apply_coloring_pma", fs_pma, ShaderComp::LOCATION_FRAGMENT_COLORING, 0.0 );
else
vp->setFunction( "oe_mp_apply_coloring", fs, ShaderComp::LOCATION_FRAGMENT_COLORING, 0.0 );
// assemble color filter code snippets.
bool haveColorFilters = false;
{
std::stringstream cf_head;
std::stringstream cf_body;
const char* I = " ";
if ( _terrainOptions.premultipliedAlpha() == true )
{
// un-PMA the color before passing it to the color filters.
cf_body << I << "if (color.a > 0.0) color.rgb /= color.a; \n";
}
// second, install the per-layer color filter functions AND shared layer bindings.
bool ifStarted = false;
int numImageLayers = _update_mapf->imageLayers().size();
for( int i=0; i<numImageLayers; ++i )
{
ImageLayer* layer = _update_mapf->getImageLayerAt(i);
if ( layer->getEnabled() )
{
// install Color Filter function calls:
const ColorFilterChain& chain = layer->getColorFilters();
if ( chain.size() > 0 )
{
haveColorFilters = true;
if ( ifStarted ) cf_body << I << "else if ";
else cf_body << I << "if ";
cf_body << "(oe_layer_uid == " << layer->getUID() << ") {\n";
for( ColorFilterChain::const_iterator j = chain.begin(); j != chain.end(); ++j )
{
const ColorFilter* filter = j->get();
cf_head << "void " << filter->getEntryPointFunctionName() << "(inout vec4 color);\n";
cf_body << I << I << filter->getEntryPointFunctionName() << "(color);\n";
filter->install( terrainStateSet );
}
cf_body << I << "}\n";
ifStarted = true;
}
}
}
if ( _terrainOptions.premultipliedAlpha() == true )
{
// re-PMA the color after it passes through the color filters.
cf_body << I << "color.rgb *= color.a; \n";
}
if ( haveColorFilters )
{
std::string cf_head_str, cf_body_str;
cf_head_str = cf_head.str();
cf_body_str = cf_body.str();
replaceIn( fs_colorfilters, "__COLOR_FILTER_HEAD__", cf_head_str );示例6: Shader
// Generates the main shader code for rendering the terrain.
void
MPTerrainEngineNode::updateShaders()
{
if ( _batchUpdateInProgress )
{
_shaderUpdateRequired = true;
}
else
{
osg::StateSet* terrainStateSet = _terrain->getOrCreateStateSet();
VirtualProgram* vp = new VirtualProgram();
vp->setName( "engine_mp:TerrainNode" );
terrainStateSet->setAttributeAndModes( vp, osg::StateAttribute::ON );
// Vertex shader template:
std::string vs =
"#version " GLSL_VERSION_STR "\n"
GLSL_DEFAULT_PRECISION_FLOAT "\n"
"varying vec4 osg_FrontColor; \n"
"varying vec4 osg_FrontSecondaryColor; \n"
"varying vec4 oe_layer_tc;\n"
"void osgearth_vert_setupColoring() \n"
"{ \n"
" osg_FrontColor = gl_Color; \n"
" osg_FrontSecondaryColor = vec4(0.0);\n"
" oe_layer_tc = __GL_MULTITEXCOORD__;\n"
"}\n";
// Fragment shader template:
std::string fs =
"#version " GLSL_VERSION_STR "\n"
GLSL_DEFAULT_PRECISION_FLOAT "\n"
"varying vec4 oe_layer_tc; \n"
"uniform sampler2D oe_layer_tex; \n"
"uniform int oe_layer_uid; \n"
"uniform int oe_layer_order; \n"
"uniform float oe_layer_opacity; \n"
"__COLOR_FILTER_HEAD__"
"void osgearth_frag_applyColoring( inout vec4 color ) \n"
"{ \n"
" vec4 texel = texture2D(oe_layer_tex, oe_layer_tc.st);\n"
" float alpha = texel.a * oe_layer_opacity; \n"
" if (oe_layer_order == 0) \n"
" color = vec4(color.rgb * (1.0 - alpha) + (texel.rgb * alpha), 1.0); \n"
" else \n"
" color = vec4(texel.rgb, color.a * alpha); \n"
" __COLOR_FILTER_BODY__"
"} \n";
// install the gl_MultiTexCoord* variable that uses the proper texture
// image unit:
replaceIn( vs, "__GL_MULTITEXCOORD__", Stringify() << "gl_MultiTexCoord" << _textureImageUnit );
// assemble color filter code snippets.
{
std::stringstream cf_head;
std::stringstream cf_body;
// second, install the per-layer color filter functions.
bool ifStarted = false;
const char* I = " ";
int numImageLayers = _update_mapf->imageLayers().size();
for( int i=0; i<numImageLayers; ++i )
{
ImageLayer* layer = _update_mapf->getImageLayerAt(i);
if ( layer->getEnabled() )
{
const ColorFilterChain& chain = layer->getColorFilters();
if ( chain.size() > 0 )
{
if ( ifStarted ) cf_body << I << "else if ";
else cf_body << I << "if ";
cf_body << "(oe_layer_uid == " << layer->getUID() << ") {\n";
for( ColorFilterChain::const_iterator j = chain.begin(); j != chain.end(); ++j )
{
const ColorFilter* filter = j->get();
cf_head << "void " << filter->getEntryPointFunctionName() << "(in int slot, inout vec4 color);\n";
cf_body << I << I << filter->getEntryPointFunctionName() << "(" << _textureImageUnit << ", color);\n";
filter->install( terrainStateSet );
}
cf_body << I << "}\n";
ifStarted = true;
}
}
}
std::string cf_head_str, cf_body_str;
cf_head_str = cf_head.str();
cf_body_str = cf_body.str();
replaceIn( fs, "__COLOR_FILTER_HEAD__", cf_head_str );
replaceIn( fs, "__COLOR_FILTER_BODY__", cf_body_str );
}
vp->setShader(
"osgearth_vert_setupColoring",
new osg::Shader( osg::Shader::VERTEX, vs ),
osg::StateAttribute::ON | osg::StateAttribute::PROTECTED );
//.........这里部分代码省略.........