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https://github.com/OpenSpace/OpenSpace.git
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280 lines
10 KiB
C++
280 lines
10 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2016 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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// temporary includes (will fix as soon as I figure out how class hierarchy should work,
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// ie after I see model on screen)
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// open space includes
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#include <openspace/rendering/renderengine.h>
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#include <modules/base/rendering/renderablemodel.h>
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#include <modules/base/rendering/modelgeometry.h>
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#include <openspace/engine/configurationmanager.h>
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#include <ghoul/io/texture/texturereader.h>
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#include <ghoul/opengl/textureunit.h>
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#include <ghoul/filesystem/filesystem.h>
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#include <openspace/scene/scenegraphnode.h>
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#include <openspace/util/time.h>
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#include <openspace/util/spicemanager.h>
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#include <openspace/engine/openspaceengine.h>
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#define _USE_MATH_DEFINES
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#include <math.h>
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namespace {
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const std::string _loggerCat = "RenderableModel";
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const std::string keyGeometry = "Geometry";
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const std::string keyBody = "Body";
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const std::string keyStart = "StartTime";
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const std::string keyEnd = "EndTime";
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const std::string keyFading = "Shading.Fadeable";
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const std::string keyModelTransform = "Rotation.ModelTransform";
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//const std::string keyGhosting = "Shading.Ghosting";
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}
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namespace openspace {
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RenderableModel::RenderableModel(const ghoul::Dictionary& dictionary)
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: Renderable(dictionary)
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, _colorTexturePath("colorTexture", "Color Texture")
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, _performFade("performFading", "Perform Fading", false)
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, _fading("fading", "Fade", 0)
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, _debugModelRotation("modelrotation", "Model Rotation", glm::vec3(0.f), glm::vec3(0.f), glm::vec3(360.f))
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, _programObject(nullptr)
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, _texture(nullptr)
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, _geometry(nullptr)
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, _alpha(1.f)
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//, _isGhost(false)
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, _performShading("performShading", "Perform Shading", true)
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, _frameCount(0)
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{
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std::string name;
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bool success = dictionary.getValue(SceneGraphNode::KeyName, name);
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ghoul_assert(success, "Name was not passed to RenderableModel");
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ghoul::Dictionary geometryDictionary;
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success = dictionary.getValue(keyGeometry, geometryDictionary);
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if (success) {
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geometryDictionary.setValue(SceneGraphNode::KeyName, name);
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_geometry = modelgeometry::ModelGeometry::createFromDictionary(geometryDictionary);
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}
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std::string texturePath = "";
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success = dictionary.getValue("Textures.Color", texturePath);
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if (success)
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_colorTexturePath = absPath(texturePath);
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addPropertySubOwner(_geometry);
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addProperty(_colorTexturePath);
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_colorTexturePath.onChange(std::bind(&RenderableModel::loadTexture, this));
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addProperty(_debugModelRotation);
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//dictionary.getValue(keySource, _source);
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//dictionary.getValue(keyDestination, _destination);
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if (dictionary.hasKeyAndValue<glm::dmat3>(keyModelTransform))
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dictionary.getValue(keyModelTransform, _modelTransform);
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else
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_modelTransform = glm::dmat3(1.f);
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dictionary.getValue(keyBody, _target);
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//openspace::SpiceManager::ref().addFrame(_target, _source);
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//setBoundingSphere(pss(1.f, 9.f));
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addProperty(_performShading);
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if (dictionary.hasKeyAndValue<bool>(keyFading)) {
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bool fading;
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dictionary.getValue(keyFading, fading);
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_performFade = fading;
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}
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addProperty(_performFade);
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//if (dictionary.hasKeyAndValue<bool>(keyGhosting)) {
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// bool ghosting;
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// dictionary.getValue(keyGhosting, ghosting);
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// _isGhost = ghosting;
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//}
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}
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bool RenderableModel::isReady() const {
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bool ready = true;
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ready &= (_programObject != nullptr);
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ready &= (_texture != nullptr);
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return ready;
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}
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bool RenderableModel::initialize() {
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bool completeSuccess = true;
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if (_programObject == nullptr) {
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// NH shader
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RenderEngine& renderEngine = OsEng.renderEngine();
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_programObject = renderEngine.buildRenderProgram("ModelProgram",
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"${MODULE_BASE}/shaders/model_vs.glsl",
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"${MODULE_BASE}/shaders/model_fs.glsl");
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if (!_programObject)
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return false;
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}
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loadTexture();
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completeSuccess &= (_texture != nullptr);
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completeSuccess &= _geometry->initialize(this);
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//completeSuccess &= !_source.empty();
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//completeSuccess &= !_destination.empty();
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return completeSuccess;
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}
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bool RenderableModel::deinitialize() {
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if (_geometry) {
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_geometry->deinitialize();
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delete _geometry;
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_geometry = nullptr;
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}
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_texture = nullptr;
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RenderEngine& renderEngine = OsEng.renderEngine();
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if (_programObject) {
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renderEngine.removeRenderProgram(_programObject);
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_programObject = nullptr;
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}
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return true;
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}
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void RenderableModel::render(const RenderData& data) {
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_programObject->activate();
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double lt;
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// Fade away if it does not have spice coverage
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double time = openspace::Time::ref().currentTime();
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bool targetPositionCoverage = openspace::SpiceManager::ref().hasSpkCoverage(_target, time);
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if (!targetPositionCoverage) {
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int frame = _frameCount % 180;
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float fadingFactor = static_cast<float>(sin((frame * M_PI) / 180));
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_alpha = 0.5f + fadingFactor * 0.5f;
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}
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else
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_alpha = 1.0f;
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// Fading
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if (_performFade && _fading > 0.f) {
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_fading = _fading - 0.01f;
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}
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else if (!_performFade && _fading < 1.f) {
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_fading = _fading + 0.01f;
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}
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// debug rotation controlled from GUI
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glm::mat4 unitMat4(1);
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glm::vec3 debugEulerRot = glm::radians(_debugModelRotation.value());
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glm::mat4 rotX = glm::rotate(unitMat4, debugEulerRot.x, glm::vec3(1, 0, 0));
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glm::mat4 rotY = glm::rotate(unitMat4, debugEulerRot.y, glm::vec3(0, 1, 0));
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glm::mat4 rotZ = glm::rotate(unitMat4, debugEulerRot.z, glm::vec3(0, 0, 1));
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glm::dmat4 debugModelRotation = rotX * rotY * rotZ;
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// Model transform and view transform needs to be in double precision
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glm::dmat4 modelTransform =
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glm::translate(glm::dmat4(1.0), data.modelTransform.translation) * // Translation
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glm::dmat4(data.modelTransform.rotation) * // Spice rotation
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glm::dmat4(glm::scale(glm::dmat4(1.0), glm::dvec3(data.modelTransform.scale)));
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debugModelRotation; // debug model rotation controlled from GUI
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glm::dmat4 modelViewTransform = data.camera.combinedViewMatrix() * modelTransform;
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glm::vec3 directionToSun = glm::normalize(_sunPos - data.modelTransform.translation);
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glm::vec3 directionToSunViewSpace = glm::mat3(data.camera.combinedViewMatrix()) * directionToSun;
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_programObject->setUniform("transparency", _alpha);
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_programObject->setUniform("directionToSunViewSpace", directionToSunViewSpace);
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_programObject->setUniform("modelViewTransform", glm::mat4(modelViewTransform));
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_programObject->setUniform("projectionTransform", data.camera.projectionMatrix());
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_programObject->setUniform("performShading", _performShading);
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_programObject->setUniform("fading", _fading);
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_geometry->setUniforms(*_programObject);
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// Bind texture
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ghoul::opengl::TextureUnit unit;
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unit.activate();
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_texture->bind();
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_programObject->setUniform("texture1", unit);
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_geometry->render();
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// disable shader
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_programObject->deactivate();
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}
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void RenderableModel::update(const UpdateData& data) {
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if (_programObject->isDirty())
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_programObject->rebuildFromFile();
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double _time = data.time;
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//if (_isGhost){
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// futureTime = openspace::ImageSequencer::ref().getNextCaptureTime();
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// double remaining = openspace::ImageSequencer::ref().getNextCaptureTime() - data.time;
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// double interval = openspace::ImageSequencer::ref().getIntervalLength();
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// double t = 1.f - remaining / openspace::ImageSequencer::ref().getIntervalLength();
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// if (interval > 60) {
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// if (t < 0.8)
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// _fading = static_cast<float>(t);
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// else if (t >= 0.95)
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// _fading = _fading - 0.5f;
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// }
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// else
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// _fading = 0.f;
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// _time = futureTime;
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//}
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double lt;
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_sunPos = openspace::SpiceManager::ref().targetPosition("SUN", "SUN", "GALACTIC", {}, _time, lt);
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}
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void RenderableModel::loadTexture() {
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_texture = nullptr;
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if (_colorTexturePath.value() != "") {
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_texture = std::move(ghoul::io::TextureReader::ref().loadTexture(absPath(_colorTexturePath)));
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if (_texture) {
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LDEBUG("Loaded texture from '" << absPath(_colorTexturePath) << "'");
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_texture->uploadTexture();
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_texture->setFilter(ghoul::opengl::Texture::FilterMode::AnisotropicMipMap);
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}
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}
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}
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} // namespace openspace
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