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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| /* -*-c++-*- */ | ||
| /* osgEarth - Geospatial SDK for OpenSceneGraph | ||
| * Copyright 2018 Pelican Mapping | ||
| * http://osgearth.org | ||
| * | ||
| * osgEarth is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU Lesser General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/> | ||
| */ | ||
| #pragma once | ||
|
|
||
| #include <osgEarthImGui/ImGuiPanel> | ||
| #include <osgEarth/CullingUtils> | ||
|
|
||
| namespace osgEarth | ||
| { | ||
| class LiveCamerasGUI : public ImGuiPanel | ||
| { | ||
| public: | ||
| LiveCamerasGUI() : | ||
| ImGuiPanel("Live Cameras") | ||
| { | ||
| memset(_name, 0, sizeof(_name)); | ||
| } | ||
|
|
||
| void draw(osg::RenderInfo& ri) override | ||
| { | ||
| if (!isVisible()) return; | ||
| if (!findNodeOrHide(_mapNode, ri)) return; | ||
|
|
||
| osgViewer::View* view = dynamic_cast<osgViewer::View*>(ri.getView()); | ||
|
|
||
| if (!_installed) | ||
| { | ||
| _root = new osg::Group(); | ||
| view->getSceneData()->asGroup()->addChild(_root.get()); | ||
| _visibleCallback = new ToggleVisibleCullCallback(); | ||
| _installed = true; | ||
| } | ||
|
|
||
| ImGui::Begin(name(), visible()); | ||
|
|
||
| ImGui::Text("Live Cameras: %d", _root->getNumChildren()); | ||
|
|
||
| if (ImGui::Checkbox("Visible", &_visible)) | ||
| { | ||
| _visibleCallback->setVisible(_visible); | ||
| } | ||
| ImGui::Separator(); | ||
| ImGui::InputText("Name", _name, IM_ARRAYSIZE(_name)); | ||
| if (ImGui::Button("Add")) | ||
| { | ||
| auto currentCamera = ri.getCurrentCamera(); | ||
|
|
||
| float width = currentCamera->getViewport()->width(); | ||
| float height = currentCamera->getViewport()->height(); | ||
| double aspectRatio = width / height; | ||
|
|
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| height = 200.0; | ||
| width = height * aspectRatio; | ||
|
|
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| osg::Camera* camera = new osg::Camera; | ||
| std::string name = std::string(_name); | ||
| if (name.empty()) | ||
| { | ||
| name = "Camera " + std::to_string(_root->getNumChildren() + 1); | ||
| } | ||
| camera->setName(name); | ||
| camera->setClearColor(osg::Vec4(0.0, 0.0, 0.0, 1.0)); | ||
| camera->setClearDepth(1.0); | ||
| camera->setClearMask(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT); | ||
|
|
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| camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR); | ||
|
|
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| camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT); | ||
| camera->setRenderOrder(osg::Camera::PRE_RENDER); | ||
| camera->setAllowEventFocus(false); | ||
| camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF); | ||
|
|
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| camera->setViewMatrix(currentCamera->getViewMatrix()); | ||
| camera->setProjectionMatrix(currentCamera->getProjectionMatrix()); | ||
|
|
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| osg::Viewport* viewport = new osg::Viewport(0, 0, width, height); | ||
|
|
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| camera->setViewport(viewport); | ||
| camera->setImplicitBufferAttachmentMask(0, 0); | ||
| camera->setSmallFeatureCullingPixelSize(0.0f); | ||
|
|
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| osg::Texture2D* colorTexture = new osg::Texture2D; | ||
| colorTexture->setInternalFormat(GL_RGBA8); | ||
| colorTexture->setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR); | ||
| colorTexture->setFilter(osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR); | ||
| colorTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE); | ||
| colorTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE); | ||
| colorTexture->setTextureSize(width, height); | ||
| camera->attach(osg::Camera::COLOR_BUFFER0, colorTexture); | ||
|
|
||
| /* | ||
| osg::Texture2D* depthTexture = new osg::Texture2D(); | ||
| depthTexture->setTextureSize(width, height); | ||
| depthTexture->setSourceFormat(GL_DEPTH_COMPONENT); | ||
| depthTexture->setSourceType(GL_FLOAT); | ||
| depthTexture->setInternalFormat(GL_DEPTH_COMPONENT24); | ||
| depthTexture->setBorderWidth(0); | ||
| depthTexture->setFilter(osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR); | ||
| depthTexture->setFilter(osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR); | ||
| depthTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE); | ||
| depthTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE); | ||
| camera->attach(osg::Camera::DEPTH_BUFFER, depthTexture); | ||
| */ | ||
|
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||
|
|
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| // Create a wrapper group to add to the camera has the ToggleVisibleCullCallback attached | ||
| // so we can toggle the draw of the camera on and off. | ||
| osg::Group* wrapperGroup = new osg::Group(); | ||
| wrapperGroup->setCullCallback(_visibleCallback); | ||
| wrapperGroup->addChild(_mapNode.get()); | ||
| camera->addChild(wrapperGroup); | ||
|
|
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| _root->addChild(camera); | ||
| } | ||
|
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| osg::Camera* toRemove = nullptr; | ||
|
|
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| for (unsigned int i = 0; i < _root->getNumChildren(); i++) | ||
| { | ||
| osg::Camera* camera = dynamic_cast<osg::Camera*>(_root->getChild(i)); | ||
| if (camera) | ||
| { | ||
| ImGui::PushID(camera); | ||
| ImGui::Text(camera->getName().c_str()); | ||
| if (ImGui::Button("Zoom to")) | ||
| { | ||
| auto manip = view->getCameraManipulator(); | ||
| manip->setByInverseMatrix(camera->getViewMatrix()); | ||
| } | ||
| ImGui::SameLine(); | ||
| if (ImGui::Button("Remove")) | ||
| { | ||
| toRemove = camera; | ||
| } | ||
| auto colorAttachment = camera->getBufferAttachmentMap().find(osg::Camera::COLOR_BUFFER0); | ||
| if (colorAttachment != camera->getBufferAttachmentMap().end()) | ||
| { | ||
| osg::Texture2D* texture = dynamic_cast<osg::Texture2D*>(colorAttachment->second._texture.get()); | ||
| if (texture) | ||
| { | ||
| ImGuiEx::OSGTexture(texture, ri, 200); | ||
| } | ||
| } | ||
| ImGui::Separator(); | ||
| ImGui::PopID(); | ||
| } | ||
| } | ||
|
|
||
| if (toRemove) | ||
| { | ||
| _root->removeChild(toRemove); | ||
| } | ||
|
|
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| ImGui::End(); | ||
| } | ||
|
|
||
| private: | ||
| char _name[1024]; | ||
| osg::ref_ptr< osg::Group > _root; | ||
| osg::observer_ptr<MapNode> _mapNode; | ||
| bool _installed = false; | ||
| bool _visible = true; | ||
| osg::ref_ptr< ToggleVisibleCullCallback> _visibleCallback; | ||
| }; | ||
| } |
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