From abc2499e2d0b3bdc1eecac08fc185c8b6e954144 Mon Sep 17 00:00:00 2001 From: Robert Osfield Date: Sun, 12 Aug 2007 13:10:07 +0000 Subject: [PATCH] Removed now redundent osgshadowtexture and osgdepthshadow examples --- examples/osgdepthshadow/CMakeLists.txt | 7 - examples/osgdepthshadow/osgdepthshadow.cpp | 521 ------------------ examples/osgshadowtexture/CMakeLists.txt | 8 - .../osgshadowtexture/CreateShadowedScene.cpp | 224 -------- .../osgshadowtexture/CreateShadowedScene.h | 32 -- .../osgshadowtexture/osgshadowtexture.cpp | 274 --------- runexamples.bat | 15 +- 7 files changed, 9 insertions(+), 1072 deletions(-) delete mode 100644 examples/osgdepthshadow/CMakeLists.txt delete mode 100644 examples/osgdepthshadow/osgdepthshadow.cpp delete mode 100644 examples/osgshadowtexture/CMakeLists.txt delete mode 100644 examples/osgshadowtexture/CreateShadowedScene.cpp delete mode 100644 examples/osgshadowtexture/CreateShadowedScene.h delete mode 100644 examples/osgshadowtexture/osgshadowtexture.cpp diff --git a/examples/osgdepthshadow/CMakeLists.txt b/examples/osgdepthshadow/CMakeLists.txt deleted file mode 100644 index 77601e7e0..000000000 --- a/examples/osgdepthshadow/CMakeLists.txt +++ /dev/null @@ -1,7 +0,0 @@ -#this file is automatically generated - - -SET(TARGET_SRC osgdepthshadow.cpp ) -SET(TARGET_ADDED_LIBRARIES osgShadow ) -#### end var setup ### -SETUP_EXAMPLE(osgdepthshadow) diff --git a/examples/osgdepthshadow/osgdepthshadow.cpp b/examples/osgdepthshadow/osgdepthshadow.cpp deleted file mode 100644 index b8ef94d58..000000000 --- a/examples/osgdepthshadow/osgdepthshadow.cpp +++ /dev/null @@ -1,521 +0,0 @@ -/* OpenSceneGraph example, osgdepthshadow. -* -* Permission is hereby granted, free of charge, to any person obtaining a copy -* of this software and associated documentation files (the "Software"), to deal -* in the Software without restriction, including without limitation the rights -* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -* copies of the Software, and to permit persons to whom the Software is -* furnished to do so, subject to the following conditions: -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -* THE SOFTWARE. -*/ - -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include -#include - -#include - -using namespace osg; - -class LightTransformCallback: public osg::NodeCallback -{ - -public: - - LightTransformCallback(float angular_velocity, float height, float radius): - _angular_velocity(angular_velocity), - _height(height), - _radius(radius), - _previous_traversal_number(-1), - _previous_time(-1.0f), - _angle(0) - { - } - - void operator()(Node* node, NodeVisitor* nv); - -protected: - - float _angular_velocity; - float _height; - float _radius; - int _previous_traversal_number; - double _previous_time; - float _angle; -}; - - -void -LightTransformCallback::operator()(Node* node, NodeVisitor* nv) -{ - MatrixTransform* transform = dynamic_cast(node); - if (nv && transform) - { - const FrameStamp* fs = nv->getFrameStamp(); - if (!fs) return; // not frame stamp, no handle on the time so can't move. - - double new_time = fs->getSimulationTime(); - if (nv->getTraversalNumber() != _previous_traversal_number) - { - _angle += _angular_velocity * (new_time - _previous_time); - - Matrix matrix = Matrix::rotate(atan(_height / _radius), -X_AXIS) * - Matrix::rotate(PI_2, Y_AXIS) * - Matrix::translate(Vec3(_radius, 0, 0)) * - Matrix::rotate(_angle, Y_AXIS) * - Matrix::translate(Vec3(0, _height, 0)); - - // update the specified transform - transform->setMatrix(matrix); - - _previous_traversal_number = nv->getTraversalNumber(); - } - - _previous_time = new_time; - } - - // must call any nested node callbacks and continue subgraph traversal. - traverse(node,nv); - -} - - -ref_ptr _create_lights() -{ - ref_ptr transform_0 = new MatrixTransform; - - // create a spot light. - ref_ptr light_0 = new Light; - light_0->setLightNum(0); - light_0->setPosition(Vec4(0, 0, 0, 1.0f)); - light_0->setAmbient(Vec4(0.0f, 0.0f, 0.0f, 1.0f)); - light_0->setDiffuse(Vec4(1.0f, 0.8f, 0.8f, 1.0f)); - light_0->setSpotCutoff(60.0f); - light_0->setSpotExponent(2.0f); - - ref_ptr light_source_0 = new LightSource; - light_source_0->setLight(light_0.get()); - light_source_0->setLocalStateSetModes(StateAttribute::ON); - transform_0->setUpdateCallback(new LightTransformCallback(inDegrees(90.0f), 8, 5)); - transform_0->addChild(light_source_0.get()); - - ref_ptr geode = new Geode; - - ref_ptr shape; - ref_ptr hints = new TessellationHints; - hints->setDetailRatio(0.3f); - shape = new ShapeDrawable(new Sphere(Vec3(0.0f, 0.0f, 0.0f), 0.15f), hints.get()); - shape->setColor(Vec4(1.0f, 0.5f, 0.5f, 1.0f)); - geode->addDrawable(shape.get()); - shape = new ShapeDrawable(new Cylinder(Vec3(0.0f, 0.0f, -0.4f), 0.05f, 0.8f), hints.get()); - shape->setColor(Vec4(1.0f, 0.5f, 0.5f, 1.0f)); - geode->addDrawable(shape.get()); - - - geode->getOrCreateStateSet()->setMode(GL_LIGHTING, StateAttribute::OFF); - transform_0->addChild(geode.get()); - - return transform_0; -} - -ref_ptr _create_scene() -{ - ref_ptr scene = new Group; - ref_ptr geode_1 = new Geode; - scene->addChild(geode_1.get()); - - ref_ptr geode_2 = new Geode; - ref_ptr transform_2 = new MatrixTransform; - transform_2->addChild(geode_2.get()); - transform_2->setUpdateCallback(new osg::AnimationPathCallback(Vec3(0, 0, 0), Y_AXIS, inDegrees(45.0f))); - scene->addChild(transform_2.get()); - - ref_ptr geode_3 = new Geode; - ref_ptr transform_3 = new MatrixTransform; - transform_3->addChild(geode_3.get()); - transform_3->setUpdateCallback(new osg::AnimationPathCallback(Vec3(0, 0, 0), Y_AXIS, inDegrees(-22.5f))); - scene->addChild(transform_3.get()); - - const float radius = 0.8f; - const float height = 1.0f; - ref_ptr hints = new TessellationHints; - hints->setDetailRatio(2.0f); - ref_ptr shape; - - shape = new ShapeDrawable(new Box(Vec3(0.0f, -2.0f, 0.0f), 10, 0.1f, 10), hints.get()); - shape->setColor(Vec4(0.5f, 0.5f, 0.7f, 1.0f)); - geode_1->addDrawable(shape.get()); - - shape = new ShapeDrawable(new Sphere(Vec3(0.0f, 0.0f, 0.0f), radius * 2), hints.get()); - shape->setColor(Vec4(0.8f, 0.8f, 0.8f, 1.0f)); - geode_1->addDrawable(shape.get()); - - shape = new ShapeDrawable(new Sphere(Vec3(-3.0f, 0.0f, 0.0f), radius), hints.get()); - shape->setColor(Vec4(0.6f, 0.8f, 0.8f, 1.0f)); - geode_2->addDrawable(shape.get()); - - shape = new ShapeDrawable(new Box(Vec3(3.0f, 0.0f, 0.0f), 2 * radius), hints.get()); - shape->setColor(Vec4(0.4f, 0.9f, 0.3f, 1.0f)); - geode_2->addDrawable(shape.get()); - - shape = new ShapeDrawable(new Cone(Vec3(0.0f, 0.0f, -3.0f), radius, height), hints.get()); - shape->setColor(Vec4(0.2f, 0.5f, 0.7f, 1.0f)); - geode_2->addDrawable(shape.get()); - - shape = new ShapeDrawable(new Cylinder(Vec3(0.0f, 0.0f, 3.0f), radius, height), hints.get()); - shape->setColor(Vec4(1.0f, 0.3f, 0.3f, 1.0f)); - geode_2->addDrawable(shape.get()); - - shape = new ShapeDrawable(new Box(Vec3(0.0f, 3.0f, 0.0f), 2, 0.1f, 2), hints.get()); - shape->setColor(Vec4(0.8f, 0.8f, 0.4f, 1.0f)); - geode_3->addDrawable(shape.get()); - - // material - ref_ptr matirial = new Material; - matirial->setColorMode(Material::DIFFUSE); - matirial->setAmbient(Material::FRONT_AND_BACK, Vec4(0, 0, 0, 1)); - matirial->setSpecular(Material::FRONT_AND_BACK, Vec4(1, 1, 1, 1)); - matirial->setShininess(Material::FRONT_AND_BACK, 64.0f); - scene->getOrCreateStateSet()->setAttributeAndModes(matirial.get(), StateAttribute::ON); - - return scene; -} - - -class UpdateCameraAndTexGenCallback : public osg::NodeCallback -{ - public: - - UpdateCameraAndTexGenCallback(osg::MatrixTransform* light_transform, osg::Camera* Camera, osg::TexGenNode* texgenNode): - _light_transform(light_transform), - _Camera(Camera), - _texgenNode(texgenNode) - { - } - - virtual void operator()(osg::Node* node, osg::NodeVisitor* nv) - { - // first update subgraph to make sure objects are all moved into postion - traverse(node,nv); - - // now compute the camera's view and projection matrix to point at the shadower (the camera's children) - osg::BoundingSphere bs; - for(unsigned int i=0; i<_Camera->getNumChildren(); ++i) - { - bs.expandBy(_Camera->getChild(i)->getBound()); - } - - if (!bs.valid()) - { - osg::notify(osg::WARN) << "bb invalid"<<_Camera.get()<getMatrix().getTrans(); - - float centerDistance = (position-bs.center()).length(); - - float znear = centerDistance-bs.radius(); - float zfar = centerDistance+bs.radius(); - float zNearRatio = 0.001f; - if (znearsetReferenceFrame(osg::Camera::ABSOLUTE_RF); - _Camera->setProjectionMatrixAsFrustum(-right,right,-top,top,znear,zfar); - _Camera->setViewMatrixAsLookAt(position,bs.center(),osg::Vec3(0.0f,1.0f,0.0f)); - - // compute the matrix which takes a vertex from local coords into tex coords - // will use this later to specify osg::TexGen.. - osg::Matrix MVPT = _Camera->getViewMatrix() * - _Camera->getProjectionMatrix() * - osg::Matrix::translate(1.0,1.0,1.0) * - osg::Matrix::scale(0.5f,0.5f,0.5f); - - _texgenNode->getTexGen()->setMode(osg::TexGen::EYE_LINEAR); - _texgenNode->getTexGen()->setPlanesFromMatrix(MVPT); - - } - - protected: - - virtual ~UpdateCameraAndTexGenCallback() {} - - osg::ref_ptr _light_transform; - osg::ref_ptr _Camera; - osg::ref_ptr _texgenNode; - -}; - -////////////////////////////////////////////////////////////////// -// fragment shader -// -char fragmentShaderSource_noBaseTexture[] = - "uniform sampler2DShadow shadowTexture; \n" - "uniform vec2 ambientBias; \n" - "\n" - "void main(void) \n" - "{ \n" - " gl_FragColor = gl_Color * (ambientBias.x + shadow2DProj( shadowTexture, gl_TexCoord[0] ) * ambientBias.y); \n" - "}\n"; - -////////////////////////////////////////////////////////////////// -// fragment shader -// -char fragmentShaderSource_withBaseTexture[] = - "uniform sampler2D baseTexture; \n" - "uniform sampler2DShadow shadowTexture; \n" - "uniform vec2 ambientBias; \n" - "\n" - "void main(void) \n" - "{ \n" - " vec4 color = gl_Color * texture2D( baseTexture, gl_TexCoord[0].xy ); \n" - " gl_FragColor = color * (ambientBias.x + shadow2DProj( shadowTexture, gl_TexCoord[1] ) * ambientBias.y); \n" - "}\n"; - - -osg::Group* createShadowedScene(osg::Node* shadowed,osg::MatrixTransform* light_transform, unsigned int unit) -{ - osg::Group* group = new osg::Group; - - unsigned int tex_width = 1024; - unsigned int tex_height = 1024; - - osg::Texture2D* texture = new osg::Texture2D; - texture->setTextureSize(tex_width, tex_height); - - texture->setInternalFormat(GL_DEPTH_COMPONENT); - texture->setShadowComparison(true); - texture->setShadowTextureMode(Texture::LUMINANCE); - texture->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR); - texture->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR); - - // set up the render to texture camera. - { - - // create the camera - osg::Camera* camera = new osg::Camera; - - camera->setClearMask(GL_DEPTH_BUFFER_BIT); - camera->setClearColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f)); - camera->setComputeNearFarMode(osg::Camera::DO_NOT_COMPUTE_NEAR_FAR); - - // set viewport - camera->setViewport(0,0,tex_width,tex_height); - - osg::StateSet* _local_stateset = camera->getOrCreateStateSet(); - - _local_stateset->setMode(GL_LIGHTING, osg::StateAttribute::OFF); - - - float factor = 0.0f; - float units = 1.0f; - - ref_ptr polygon_offset = new PolygonOffset; - polygon_offset->setFactor(factor); - polygon_offset->setUnits(units); - _local_stateset->setAttribute(polygon_offset.get(), StateAttribute::ON | StateAttribute::OVERRIDE); - _local_stateset->setMode(GL_POLYGON_OFFSET_FILL, StateAttribute::ON | StateAttribute::OVERRIDE); - - ref_ptr cull_face = new CullFace; - cull_face->setMode(CullFace::FRONT); - _local_stateset->setAttribute(cull_face.get(), StateAttribute::ON | StateAttribute::OVERRIDE); - _local_stateset->setMode(GL_CULL_FACE, StateAttribute::ON | StateAttribute::OVERRIDE); - - - // set the camera to render before the main camera. - camera->setRenderOrder(osg::Camera::PRE_RENDER); - - // tell the camera to use OpenGL frame buffer object where supported. - camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT); - - // attach the texture and use it as the color buffer. - camera->attach(osg::Camera::DEPTH_BUFFER, texture); - - // add subgraph to render - camera->addChild(shadowed); - - group->addChild(camera); - - // create the texgen node to project the tex coords onto the subgraph - osg::TexGenNode* texgenNode = new osg::TexGenNode; - texgenNode->setTextureUnit(unit); - group->addChild(texgenNode); - - // set an update callback to keep moving the camera and tex gen in the right direction. - group->setUpdateCallback(new UpdateCameraAndTexGenCallback(light_transform, camera, texgenNode)); - } - - - // set the shadowed subgraph so that it uses the texture and tex gen settings. - { - osg::Group* shadowedGroup = new osg::Group; - shadowedGroup->addChild(shadowed); - group->addChild(shadowedGroup); - - osg::StateSet* stateset = shadowedGroup->getOrCreateStateSet(); - stateset->setTextureAttributeAndModes(unit,texture,osg::StateAttribute::ON); - stateset->setTextureMode(unit,GL_TEXTURE_GEN_S,osg::StateAttribute::ON); - stateset->setTextureMode(unit,GL_TEXTURE_GEN_T,osg::StateAttribute::ON); - stateset->setTextureMode(unit,GL_TEXTURE_GEN_R,osg::StateAttribute::ON); - - stateset->setTextureMode(unit,GL_TEXTURE_GEN_Q,osg::StateAttribute::ON); - - osg::Program* program = new osg::Program; - stateset->setAttribute(program); - - if (unit==0) - { - osg::Shader* fragment_shader = new osg::Shader(osg::Shader::FRAGMENT, fragmentShaderSource_noBaseTexture); - program->addShader(fragment_shader); - - osg::Uniform* shadowTextureSampler = new osg::Uniform("shadowTexture",(int)unit); - stateset->addUniform(shadowTextureSampler); - } - else - { - osg::Shader* fragment_shader = new osg::Shader(osg::Shader::FRAGMENT, fragmentShaderSource_withBaseTexture); - program->addShader(fragment_shader); - - osg::Uniform* baseTextureSampler = new osg::Uniform("baseTexture",0); - stateset->addUniform(baseTextureSampler); - - osg::Uniform* shadowTextureSampler = new osg::Uniform("shadowTexture",(int)unit); - stateset->addUniform(shadowTextureSampler); - } - - osg::Uniform* ambientBias = new osg::Uniform("ambientBias",osg::Vec2(0.3f,1.2f)); - stateset->addUniform(ambientBias); - - } - - // add the shadower and shadowed. - group->addChild(light_transform); - - return group; -} - - -int main(int argc, char** argv) -{ - // use an ArgumentParser object to manage the program arguments. - ArgumentParser arguments(&argc, argv); - - // set up the usage document, in case we need to print out how to use this program. - arguments.getApplicationUsage()->setDescription(arguments.getApplicationName() + " is the example which demonstrates using of GL_ARB_shadow extension implemented in osg::Texture class"); - arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()); - arguments.getApplicationUsage()->addCommandLineOption("-h or --help", "Display this information"); - arguments.getApplicationUsage()->addCommandLineOption("--with-base-texture", "Adde base texture to shadowed model."); - arguments.getApplicationUsage()->addCommandLineOption("--no-base-texture", "Adde base texture to shadowed model."); - - // construct the viewer. - osgViewer::Viewer viewer; - - bool withBaseTexture = true; - while(arguments.read("--with-base-texture")) { withBaseTexture = true; } - while(arguments.read("--no-base-texture")) { withBaseTexture = false; } - - // if user request help write it out to cout. - if (arguments.read("-h") || arguments.read("--help")) - { - arguments.getApplicationUsage()->write(std::cout); - return 1; - } - - - if (arguments.read("--sm")) - { - osgShadow::ShadowMap* sm = new osgShadow::ShadowMap; - sm->setTextureUnit( withBaseTexture ? 1 : 0 ); - - osg::ref_ptr shadowedScene = new osgShadow::ShadowedScene(sm); - - - ref_ptr created_scene = _create_scene(); - if (!created_scene.valid()) return 1; - - shadowedScene->addChild(_create_scene().get()); - - - ref_ptr scene = new MatrixTransform; - scene->setMatrix(osg::Matrix::rotate(osg::DegreesToRadians(125.0),1.0,0.0,0.0)); - - scene->addChild(_create_lights().get()); - scene->addChild(shadowedScene.get()); - - if (withBaseTexture) - { - scene->getOrCreateStateSet()->setTextureAttributeAndModes( 0, new osg::Texture2D(osgDB::readImageFile("Images/lz.rgb")), osg::StateAttribute::ON); - } - - viewer.setSceneData(scene.get()); - - } - else - { - ref_ptr scene = new MatrixTransform; - scene->setMatrix(osg::Matrix::rotate(osg::DegreesToRadians(125.0),1.0,0.0,0.0)); - - ref_ptr created_scene = _create_scene(); - if (!created_scene.valid()) return 1; - - ref_ptr light_transform = _create_lights(); - if (!light_transform.valid()) return 1; - - ref_ptr shadowedScene; - - if (withBaseTexture) - { - scene->getOrCreateStateSet()->setTextureAttributeAndModes( 0, new osg::Texture2D(osgDB::readImageFile("Images/lz.rgb")), osg::StateAttribute::ON); - shadowedScene = createShadowedScene(created_scene.get(),light_transform.get(),1); - } - else - { - shadowedScene = createShadowedScene(created_scene.get(),light_transform.get(),0); - } - - scene->addChild(shadowedScene.get()); - - viewer.setSceneData(scene.get()); - } - - // viewer.setUpViewOnSingleScreen(); - - - return viewer.run(); -} diff --git a/examples/osgshadowtexture/CMakeLists.txt b/examples/osgshadowtexture/CMakeLists.txt deleted file mode 100644 index bfe4b4800..000000000 --- a/examples/osgshadowtexture/CMakeLists.txt +++ /dev/null @@ -1,8 +0,0 @@ -#this file is automatically generated - - -SET(TARGET_SRC CreateShadowedScene.cpp osgshadowtexture.cpp ) -SET(TARGET_H CreateShadowedScene.h ) -SET(TARGET_ADDED_LIBRARIES osgShadow ) -#### end var setup ### -SETUP_EXAMPLE(osgshadowtexture) diff --git a/examples/osgshadowtexture/CreateShadowedScene.cpp b/examples/osgshadowtexture/CreateShadowedScene.cpp deleted file mode 100644 index d0ee93a68..000000000 --- a/examples/osgshadowtexture/CreateShadowedScene.cpp +++ /dev/null @@ -1,224 +0,0 @@ -/* OpenSceneGraph example, osgshadowtexture. -* -* Permission is hereby granted, free of charge, to any person obtaining a copy -* of this software and associated documentation files (the "Software"), to deal -* in the Software without restriction, including without limitation the rights -* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -* copies of the Software, and to permit persons to whom the Software is -* furnished to do so, subject to the following conditions: -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -* THE SOFTWARE. -*/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "CreateShadowedScene.h" - -using namespace osg; - -class UpdateCameraAndTexGenCallback : public osg::NodeCallback -{ - public: - - UpdateCameraAndTexGenCallback(const osg::Vec3& position, osg::Camera* Camera, osg::TexGenNode* texgenNode): - _position(position), - _Camera(Camera), - _texgenNode(texgenNode) - { - } - - virtual void operator()(osg::Node* node, osg::NodeVisitor* nv) - { - // first update subgraph to make sure objects are all moved into postion - traverse(node,nv); - - // now compute the camera's view and projection matrix to point at the shadower (the camera's children) - osg::BoundingSphere bs; - for(unsigned int i=0; i<_Camera->getNumChildren(); ++i) - { - bs.expandBy(_Camera->getChild(i)->getBound()); - } - - if (!bs.valid()) - { - osg::notify(osg::WARN) << "bb invalid"<<_Camera.get()<setReferenceFrame(osg::Camera::ABSOLUTE_RF); - _Camera->setProjectionMatrixAsFrustum(-right,right,-top,top,znear,zfar); - _Camera->setViewMatrixAsLookAt(_position,bs.center(),osg::Vec3(0.0f,1.0f,0.0f)); - - // compute the matrix which takes a vertex from local coords into tex coords - // will use this later to specify osg::TexGen.. - osg::Matrix MVPT = _Camera->getViewMatrix() * - _Camera->getProjectionMatrix() * - osg::Matrix::translate(1.0,1.0,1.0) * - osg::Matrix::scale(0.5f,0.5f,0.5f); - - _texgenNode->getTexGen()->setMode(osg::TexGen::EYE_LINEAR); - _texgenNode->getTexGen()->setPlanesFromMatrix(MVPT); - - } - - protected: - - virtual ~UpdateCameraAndTexGenCallback() {} - - osg::Vec3 _position; - osg::ref_ptr _Camera; - osg::ref_ptr _texgenNode; - -}; - - -osg::Group* createShadowedScene(osg::Node* shadower,osg::Node* shadowed,const osg::Vec3& lightPosition,float radius,unsigned int unit) -{ - osg::Group* group = new osg::Group; - - // add light source - { - osg::LightSource* lightSource = new osg::LightSource; - lightSource->getLight()->setPosition(osg::Vec4(lightPosition,1.0f)); - lightSource->getLight()->setLightNum(0); - - group->addChild(lightSource); - - osg::Geode* lightgeode = new osg::Geode; - lightgeode->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::OFF); - lightgeode->addDrawable(new osg::ShapeDrawable(new osg::Sphere(lightPosition,radius))); - group->addChild(lightgeode); - } - - osg::Vec4 ambientLightColor(0.2,0.2f,0.2f,1.0f); - - // add the shadower and shadowed. - group->addChild(shadower); - group->addChild(shadowed); - - - unsigned int tex_width = 512; - unsigned int tex_height = 512; - - osg::Texture2D* texture = new osg::Texture2D; - texture->setTextureSize(tex_width, tex_height); - texture->setInternalFormat(GL_RGB); - texture->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR); - texture->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR); - texture->setWrap(osg::Texture2D::WRAP_S,osg::Texture2D::CLAMP_TO_BORDER); - texture->setWrap(osg::Texture2D::WRAP_T,osg::Texture2D::CLAMP_TO_BORDER); - texture->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f)); - - // set up the render to texture camera. - { - - // create the camera - osg::Camera* camera = new osg::Camera; - - camera->setClearColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f)); - - // set viewport - camera->setViewport(0,0,tex_width,tex_height); - - // set the camera to render before the main camera. - camera->setRenderOrder(osg::Camera::PRE_RENDER); - - // tell the camera to use OpenGL frame buffer object where supported. - camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT); - - // attach the texture and use it as the color buffer. - camera->attach(osg::Camera::COLOR_BUFFER, texture); - - // add subgraph to render - camera->addChild(shadower); - - osg::StateSet* stateset = camera->getOrCreateStateSet(); - - // make the material black for a shadow. - osg::Material* material = new osg::Material; - material->setAmbient(osg::Material::FRONT_AND_BACK,osg::Vec4(0.0f,0.0f,0.0f,1.0f)); - material->setDiffuse(osg::Material::FRONT_AND_BACK,osg::Vec4(0.0f,0.0f,0.0f,1.0f)); - material->setEmission(osg::Material::FRONT_AND_BACK,ambientLightColor); - material->setShininess(osg::Material::FRONT_AND_BACK,0.0f); - stateset->setAttribute(material,osg::StateAttribute::OVERRIDE); - - group->addChild(camera); - - // create the texgen node to project the tex coords onto the subgraph - osg::TexGenNode* texgenNode = new osg::TexGenNode; - texgenNode->setTextureUnit(unit); - group->addChild(texgenNode); - - // set an update callback to keep moving the camera and tex gen in the right direction. - group->setUpdateCallback(new UpdateCameraAndTexGenCallback(lightPosition, camera, texgenNode)); - } - - // set the shadowed subgraph so that it uses the texture and tex gen settings. - { - osg::StateSet* stateset = shadowed->getOrCreateStateSet(); - stateset->setTextureAttributeAndModes(unit,texture,osg::StateAttribute::ON); - stateset->setTextureMode(unit,GL_TEXTURE_GEN_S,osg::StateAttribute::ON); - stateset->setTextureMode(unit,GL_TEXTURE_GEN_T,osg::StateAttribute::ON); - stateset->setTextureMode(unit,GL_TEXTURE_GEN_R,osg::StateAttribute::ON); - stateset->setTextureMode(unit,GL_TEXTURE_GEN_Q,osg::StateAttribute::ON); - } - - - // set hud to render shadow texture, just for interest - { - osg::Geode* geode = new osg::Geode; - osg::Geometry* geom = osg::createTexturedQuadGeometry(osg::Vec3(0,0,0),osg::Vec3(100.0,0.0,0.0),osg::Vec3(0.0,100.0,0.0)); - geom->getOrCreateStateSet()->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON); - geom->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::OFF); - geode->addDrawable(geom); - - osg::Camera* camera = new osg::Camera; - - // set the projection matrix - camera->setProjectionMatrix(osg::Matrix::ortho2D(0,100,0,100)); - - // set the view matrix - camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF); - camera->setViewMatrix(osg::Matrix::identity()); - - camera->setViewport(50,50,100,100); - - // only clear the depth buffer - camera->setClearMask(GL_DEPTH_BUFFER_BIT); - - // draw subgraph after main camera view. - camera->setRenderOrder(osg::Camera::POST_RENDER); - - camera->addChild(geode); - - group->addChild(camera); - - } - - return group; -} diff --git a/examples/osgshadowtexture/CreateShadowedScene.h b/examples/osgshadowtexture/CreateShadowedScene.h deleted file mode 100644 index 82b4a684f..000000000 --- a/examples/osgshadowtexture/CreateShadowedScene.h +++ /dev/null @@ -1,32 +0,0 @@ -/* -*-c++-*- -* -* OpenSceneGraph example, osgshadowtexture. -* -* Permission is hereby granted, free of charge, to any person obtaining a copy -* of this software and associated documentation files (the "Software"), to deal -* in the Software without restriction, including without limitation the rights -* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -* copies of the Software, and to permit persons to whom the Software is -* furnished to do so, subject to the following conditions: -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -* THE SOFTWARE. -*/ - -#ifndef CREATESHADOWEDSCENE_H -#define CREATESHADOWEDSCENE_H - -#include -#include - -// function to create a lightsource which contain a shadower and showed subgraph, -// the showadowed subgrph has a cull callback to fire off a pre render to texture -// of the shadowed subgraph. -extern osg::Group* createShadowedScene(osg::Node* shadower,osg::Node* shadowed,const osg::Vec3& lightPosition,float radius,unsigned int textureUnit=1); - -#endif diff --git a/examples/osgshadowtexture/osgshadowtexture.cpp b/examples/osgshadowtexture/osgshadowtexture.cpp deleted file mode 100644 index d291baf12..000000000 --- a/examples/osgshadowtexture/osgshadowtexture.cpp +++ /dev/null @@ -1,274 +0,0 @@ -/* OpenSceneGraph example, osgshadowtexture. -* -* Permission is hereby granted, free of charge, to any person obtaining a copy -* of this software and associated documentation files (the "Software"), to deal -* in the Software without restriction, including without limitation the rights -* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -* copies of the Software, and to permit persons to whom the Software is -* furnished to do so, subject to the following conditions: -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -* THE SOFTWARE. -*/ - -#include -#include -#include -#include -#include -#include -#include - -#include - -#include -#include - -#include - -#include -#include -#include -#include - -// include the call which creates the shadowed subgraph. -#include "CreateShadowedScene.h" - - -// for the grid data.. -#include "../osghangglide/terrain_coords.h" - - - -osg::AnimationPath* createAnimationPath(const osg::Vec3& center,float radius,double looptime) -{ - // set up the animation path - osg::AnimationPath* animationPath = new osg::AnimationPath; - animationPath->setLoopMode(osg::AnimationPath::LOOP); - - int numSamples = 40; - float yaw = 0.0f; - float yaw_delta = 2.0f*osg::PI/((float)numSamples-1.0f); - float roll = osg::inDegrees(30.0f); - - double time=0.0f; - double time_delta = looptime/(double)numSamples; - for(int i=0;iinsert(time,osg::AnimationPath::ControlPoint(position,rotation)); - - yaw += yaw_delta; - time += time_delta; - - } - return animationPath; -} - -osg::Node* createBase(const osg::Vec3& center,float radius) -{ - - osg::Geode* geode = new osg::Geode; - - // set up the texture of the base. - osg::StateSet* stateset = new osg::StateSet(); - osg::Image* image = osgDB::readImageFile("Images/lz.rgb"); - if (image) - { - osg::Texture2D* texture = new osg::Texture2D; - texture->setImage(image); - stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON); - } - - geode->setStateSet( stateset ); - - - osg::HeightField* grid = new osg::HeightField; - grid->allocate(38,39); - grid->setOrigin(center+osg::Vec3(-radius,-radius,0.0f)); - grid->setXInterval(radius*2.0f/(float)(38-1)); - grid->setYInterval(radius*2.0f/(float)(39-1)); - - float minHeight = FLT_MAX; - float maxHeight = -FLT_MAX; - - - unsigned int r; - for(r=0;r<39;++r) - { - for(unsigned int c=0;c<38;++c) - { - float h = vertex[r+c*39][2]; - if (h>maxHeight) maxHeight=h; - if (hsetHeight(c,r,(h+hieghtOffset)*hieghtScale); - } - } - - geode->addDrawable(new osg::ShapeDrawable(grid)); - - osg::Group* group = new osg::Group; - group->addChild(geode); - - return group; - -} - -osg::Node* createMovingModel(const osg::Vec3& center, float radius) -{ - float animationLength = 10.0f; - - osg::AnimationPath* animationPath = createAnimationPath(center,radius,animationLength); - - osg::Group* model = new osg::Group; - - osg::Node* cessna = osgDB::readNodeFile("cessna.osg"); - if (cessna) - { - const osg::BoundingSphere& bs = cessna->getBound(); - - float size = radius/bs.radius()*0.3f; - osg::MatrixTransform* positioned = new osg::MatrixTransform; - positioned->setDataVariance(osg::Object::STATIC); - positioned->setMatrix(osg::Matrix::translate(-bs.center())* - osg::Matrix::scale(size,size,size)* - osg::Matrix::rotate(osg::inDegrees(180.0f),0.0f,0.0f,2.0f)); - - positioned->addChild(cessna); - - osg::MatrixTransform* xform = new osg::MatrixTransform; - xform->setUpdateCallback(new osg::AnimationPathCallback(animationPath,0.0f,2.0)); - xform->addChild(positioned); - - model->addChild(xform); - } - - return model; -} - - - - -osg::Node* createModel(osg::ArgumentParser& arguments) -{ - osg::Vec3 center(0.0f,0.0f,0.0f); - float radius = 100.0f; - osg::Vec3 lightPosition(center+osg::Vec3(0.0f,0.0f,radius)); - - // the shadower model - osg::Node* shadower = createMovingModel(center,radius*0.5f); - - // the shadowed model - osg::Node* shadowed = createBase(center-osg::Vec3(0.0f,0.0f,radius*0.25),radius); - - if (arguments.read("--sv")) - { - // hint to tell viewer to request stencil buffer when setting up windows - osg::DisplaySettings::instance()->setMinimumNumStencilBits(8); - - osgShadow::ShadowedScene* shadowedScene = new osgShadow::ShadowedScene; - - osg::ref_ptr shadowVolume = new osgShadow::ShadowVolume; - shadowedScene->setShadowTechnique(shadowVolume.get()); - shadowVolume->setDynamicShadowVolumes(true); - - osg::ref_ptr ls = new osg::LightSource; - ls->getLight()->setPosition(osg::Vec4(lightPosition,1.0)); - - shadowedScene->addChild(shadower); - shadowedScene->addChild(shadowed); - shadowedScene->addChild(ls.get()); - - return shadowedScene; - - } - else if (arguments.read("--st")) - { - - osgShadow::ShadowedScene* shadowedScene = new osgShadow::ShadowedScene; - - osg::ref_ptr shadowTexture = new osgShadow::ShadowTexture; - shadowedScene->setShadowTechnique(shadowTexture.get()); - - osg::ref_ptr ls = new osg::LightSource; - ls->getLight()->setPosition(osg::Vec4(lightPosition,1.0)); - - shadowedScene->setReceivesShadowTraversalMask(0x1); - shadowed->setNodeMask(shadowedScene->getReceivesShadowTraversalMask()); - - shadowedScene->setCastsShadowTraversalMask(0x2); - shadower->setNodeMask(shadowedScene->getCastsShadowTraversalMask()); - - shadowedScene->addChild(shadower); - shadowedScene->addChild(shadowed); - shadowedScene->addChild(ls.get()); - - return shadowedScene; - - } - else if (arguments.read("--sm")) - { - - osgShadow::ShadowedScene* shadowedScene = new osgShadow::ShadowedScene; - - osg::ref_ptr shadowMap = new osgShadow::ShadowMap; - shadowedScene->setShadowTechnique(shadowMap.get()); - - osg::ref_ptr ls = new osg::LightSource; - ls->getLight()->setPosition(osg::Vec4(lightPosition,1.0)); - - shadowedScene->setReceivesShadowTraversalMask(0x1); - shadowed->setNodeMask(shadowedScene->getReceivesShadowTraversalMask()); - - shadowedScene->setCastsShadowTraversalMask(0x2); - shadower->setNodeMask(shadowedScene->getCastsShadowTraversalMask()); - - shadowedScene->addChild(shadower); - shadowedScene->addChild(shadowed); - shadowedScene->addChild(ls.get()); - - return shadowedScene; - - } - else - { - // combine the models together to create one which has the shadower and the shadowed with the required callback. - osg::Group* root = createShadowedScene(shadower,shadowed,lightPosition,radius/100.0f,1); - return root; - } - -} - - -int main(int argc, char ** argv) -{ - osg::ArgumentParser arguments(&argc,argv); - - // construct the viewer. - osgViewer::Viewer viewer; - - // pass the model to the viewer. - viewer.setSceneData( createModel(arguments) ); - - viewer.setThreadingModel(osgViewer::Viewer::SingleThreaded); - - return viewer.run(); -} diff --git a/runexamples.bat b/runexamples.bat index d743021e1..88251481a 100644 --- a/runexamples.bat +++ b/runexamples.bat @@ -33,9 +33,6 @@ osgclip echo osgcubemap osgcubemap -echo osgdepthshadow -osgdepthshadow - echo osgdistortion osgdistortion @@ -144,12 +141,18 @@ osgviewer glsl_mandelbrot.osg echo osgviewer glsl_julia.osg osgviewer glsl_julia.osg -echo osgshadowtexture -osgshadowtexture cessna.osg - echo osgshape osgshape +echo osgshadow -3 --sm +osgshadow -3 --sm + +echo osgshadow -2 --st +osgshadow -2 --st + +echo osgshadow -3 --ssm +osgshadow -3 --ssm + echo osgsimplifier osgsimplifier --ratio 0.1 cessna.osg