mirror of
https://github.com/OpenSpace/OpenSpace.git
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211 lines
7.7 KiB
C++
211 lines
7.7 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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#include <modules/datasurface/rendering/dataplane.h>
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#include <openspace/engine/openspaceengine.h>
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#include <openspace/rendering/renderengine.h>
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#include <ghoul/filesystem/filesystem>
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#include <ghoul/io/texture/texturereader.h>
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#include <ghoul/opengl/programobject.h>
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#include <ghoul/opengl/texture.h>
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#include <ghoul/opengl/textureunit.h>
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#include <modules/kameleon/include/kameleonwrapper.h>
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#include <openspace/scene/scene.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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namespace openspace {
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DataPlane::DataPlane(std::shared_ptr<KameleonWrapper> kw, std::string path)
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:DataSurface(path)
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, _kw(kw)
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, _texture(nullptr)
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, _quad(0)
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, _vertexPositionBuffer(0)
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{}
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DataPlane::~DataPlane(){}
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bool DataPlane::initialize(){
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DataSurface::initialize();
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_modelScale = _kw->getModelScaleScaled();
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_pscOffset = _kw->getModelBarycenterOffsetScaled();
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_dimensions = glm::size3_t(500,500,1);
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float zSlice = 0.5f;
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_dataSlice = _kw->getUniformSliceValues(std::string("p"), _dimensions, zSlice);
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glGenVertexArrays(1, &_quad); // generate array
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glGenBuffers(1, &_vertexPositionBuffer); // generate buffer
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createPlane();
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if (_shader == nullptr) {
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// Plane Program
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RenderEngine& renderEngine = OsEng.renderEngine();
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_shader = renderEngine.buildRenderProgram("PlaneProgram",
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"${MODULE_DATASURFACE}/shaders/dataplane_vs.glsl",
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"${MODULE_DATASURFACE}/shaders/dataplane_fs.glsl"
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);
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if (!_shader)
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return false;
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}
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loadTexture();
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return isReady();
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}
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bool DataPlane::deinitialize(){
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DataSurface::deinitialize();
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glDeleteVertexArrays(1, &_quad);
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_quad = 0;
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glDeleteBuffers(1, &_vertexPositionBuffer);
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_vertexPositionBuffer = 0;
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RenderEngine& renderEngine = OsEng.renderEngine();
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if (_shader) {
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renderEngine.removeRenderProgram(_shader);
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_shader = nullptr;
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}
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return true;
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}
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bool DataPlane::isReady() const {
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bool ready = true;
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if (!_shader)
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ready &= false;
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if(!_texture)
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ready &= false;
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return ready;
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};
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void DataPlane::render(){
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psc position = _parent->worldPosition();
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glm::mat4 transform = glm::mat4(1.0);
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glm::mat4 rotx = glm::rotate(transform, static_cast<float>(M_PI_2), glm::vec3(1, 0, 0));
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glm::mat4 roty = glm::rotate(transform, static_cast<float>(M_PI_2), glm::vec3(0, 1, 0));
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// glm::mat4 rot = glm::mat4(1.0);
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for (int i = 0; i < 3; i++){
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for (int j = 0; j < 3; j++){
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transform[i][j] = static_cast<float>(_stateMatrix[i][j]);
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}
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}
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transform = transform * roty * rotx;
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position += transform*glm::vec4(-_pscOffset.x, _pscOffset.z, _pscOffset.y, _pscOffset.w);
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// transform = glm::rotate(transform, _roatation.value()[0], glm::vec3(1,0,0));
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// transform = glm::rotate(transform, _roatation.value()[1], glm::vec3(0,1,0));
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// transform = glm::rotate(transform, _roatation.value()[2], glm::vec3(0,0,1));
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// Activate shader
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_shader->activate();
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glEnable(GL_ALPHA_TEST);
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glDisable(GL_CULL_FACE);
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_shader->setUniform("ViewProjection", OsEng.renderEngine().camera()->viewProjectionMatrix());
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_shader->setUniform("ModelTransform", transform);
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setPscUniforms(_shader.get(), OsEng.renderEngine().camera(), position);
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ghoul::opengl::TextureUnit unit;
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unit.activate();
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_texture->bind();
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_shader->setUniform("texture1", unit);
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glBindVertexArray(_quad);
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glDrawArrays(GL_TRIANGLES, 0, 6);
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glEnable(GL_CULL_FACE);
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_shader->deactivate();
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}
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void DataPlane::update(){
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_stateMatrix = SpiceManager::ref().positionTransformMatrix("GALACTIC", "GSM", Time::ref().currentTime());
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}
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void DataPlane::loadTexture() {
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//std::unique_ptr<ghoul::opengl::Texture> texture = ghoul::io::TextureReader::ref().loadTexture(absPath(_texturePath));
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ghoul::opengl::Texture::FilterMode filtermode = ghoul::opengl::Texture::FilterMode::Linear;
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ghoul::opengl::Texture::WrappingMode wrappingmode = ghoul::opengl::Texture::WrappingMode::ClampToEdge;
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std::unique_ptr<ghoul::opengl::Texture> texture =
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std::make_unique<ghoul::opengl::Texture>(_dataSlice, _dimensions, ghoul::opengl::Texture::Format::Red, GL_RED, GL_FLOAT, filtermode, wrappingmode);
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if (texture) {
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// std::cout << "texture path: " << absPath(_texturePath) << std::endl;
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// LDEBUG("Loaded texture from '" << absPath(_texturePath) << "'");
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texture->uploadTexture();
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// Textures of planets looks much smoother with AnisotropicMipMap rather than linear
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texture->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
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_texture = std::move(texture);
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}
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}
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void DataPlane::createPlane() {
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// ============================
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// GEOMETRY (quad)
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// ============================
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const GLfloat x = _modelScale.x/2.0;
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const GLfloat y = _modelScale.y/2.0;
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const GLfloat w = _modelScale.w;
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const GLfloat vertex_data[] = { // square of two triangles (sigh)
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// x y z w s t
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-x, -y, 0.0f, w, 0, 1,
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x, y, 0.0f, w, 1, 0,
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-x, y, 0.0f, w, 0, 0,
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-x, -y, 0.0f, w, 0, 1,
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x, -y, 0.0f, w, 1, 1,
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x, y, 0.0f, w, 1, 0,
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};
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glBindVertexArray(_quad); // bind array
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glBindBuffer(GL_ARRAY_BUFFER, _vertexPositionBuffer); // bind buffer
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glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_data), vertex_data, GL_STATIC_DRAW);
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glEnableVertexAttribArray(0);
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glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(0));
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glEnableVertexAttribArray(1);
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glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(sizeof(GLfloat) * 4));
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}
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}// namespace openspace
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