FGFS-4.1/OpenSceneGraph
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Added support for TextureCubeMap into osgUtil::RenderToTextureStage.

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This commit is contained in:
Robert Osfield
2005-07-25 13:05:57 +00:00
parent ee8f7bb756
commit 3c23a42f17
7 changed files with 190 additions and 82 deletions
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6
examples/osgprerender/osgprerender.cpp
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@@ -253,6 +253,12 @@ int main( int argc, char **argv )
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates pre rendering of scene to a texture, and then apply this texture to geometry.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
arguments.getApplicationUsage()->addCommandLineOption("--fbo","Use Frame Buffer Object for render to texture, where supported.");
arguments.getApplicationUsage()->addCommandLineOption("--fb","Use FrameBuffer for render to texture.");
arguments.getApplicationUsage()->addCommandLineOption("--pbuffer","Use Pixel Buffer for render to texture, where supported.");
arguments.getApplicationUsage()->addCommandLineOption("--window","Use a seperate Window for render to texture.");
arguments.getApplicationUsage()->addCommandLineOption("--width","Set the width of the render to texture");
arguments.getApplicationUsage()->addCommandLineOption("--height","Set the height of the render to texture");
// construct the viewer.
osgProducer::Viewer viewer(arguments);

29
examples/osgprerendercubemap/osgprerendercubemap.cpp
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@@ -187,14 +187,11 @@ class TexMatCullCallback : public osg::NodeCallback
};
osg::Group* createShadowedScene(osg::Node* reflectedSubgraph, osg::RefNodePath reflectorNodePath, unsigned int unit, const osg::Vec4& clearColor)
osg::Group* createShadowedScene(osg::Node* reflectedSubgraph, osg::RefNodePath reflectorNodePath, unsigned int unit, const osg::Vec4& clearColor, unsigned tex_width, unsigned tex_height, osg::CameraNode::RenderTargetImplementation renderImplementation)
{
osg::Group* group = new osg::Group;
unsigned int tex_width = 512;
unsigned int tex_height = 512;
osg::TextureCubeMap* texture = new osg::TextureCubeMap;
texture->setTextureSize(tex_width, tex_height);
@@ -220,7 +217,7 @@ osg::Group* createShadowedScene(osg::Node* reflectedSubgraph, osg::RefNodePath r
camera->setRenderOrder(osg::CameraNode::PRE_RENDER);
// tell the camera to use OpenGL frame buffer object where supported.
camera->setRenderTargetImplmentation(osg::CameraNode::FRAME_BUFFER_OBJECT);
camera->setRenderTargetImplmentation(renderImplementation);
// attach the texture and use it as the color buffer.
camera->attach(osg::CameraNode::COLOR_BUFFER, texture, 0, i);
@@ -276,6 +273,12 @@ int main(int argc, char** argv)
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("--fbo","Use Frame Buffer Object for render to texture, where supported.");
arguments.getApplicationUsage()->addCommandLineOption("--fb","Use FrameBuffer for render to texture.");
arguments.getApplicationUsage()->addCommandLineOption("--pbuffer","Use Pixel Buffer for render to texture, where supported.");
arguments.getApplicationUsage()->addCommandLineOption("--window","Use a seperate Window for render to texture.");
arguments.getApplicationUsage()->addCommandLineOption("--width","Set the width of the render to texture");
arguments.getApplicationUsage()->addCommandLineOption("--height","Set the height of the render to texture");
// construct the viewer.
osgProducer::Viewer viewer(arguments);
@@ -292,6 +295,19 @@ int main(int argc, char** argv)
arguments.getApplicationUsage()->write(std::cout);
return 1;
}
unsigned tex_width = 512;
unsigned tex_height = 512;
while (arguments.read("--width", tex_width)) {}
while (arguments.read("--height", tex_height)) {}
osg::CameraNode::RenderTargetImplementation renderImplementation = osg::CameraNode::FRAME_BUFFER_OBJECT;
while (arguments.read("--fbo")) { renderImplementation = osg::CameraNode::FRAME_BUFFER_OBJECT; }
while (arguments.read("--pbuffer")) { renderImplementation = osg::CameraNode::PIXEL_BUFFER; }
while (arguments.read("--fb")) { renderImplementation = osg::CameraNode::FRAME_BUFFER; }
while (arguments.read("--window")) { renderImplementation = osg::CameraNode::SEPERATE_WINDOW; }
// any option left unread are converted into errors to write out later.
arguments.reportRemainingOptionsAsUnrecognized();
@@ -309,7 +325,8 @@ int main(int argc, char** argv)
ref_ptr<Group> reflectedSubgraph = _create_scene();
if (!reflectedSubgraph.valid()) return 1;
ref_ptr<Group> reflectedScene = createShadowedScene(reflectedSubgraph.get(),createReflector(),0, viewer.getClearColor());
ref_ptr<Group> reflectedScene = createShadowedScene(reflectedSubgraph.get(), createReflector(), 0, viewer.getClearColor(),
tex_width, tex_height, renderImplementation);
scene->addChild(reflectedScene.get());