Files
OpenSpace/modules/iswa/rendering/textureplane.cpp
2016-03-30 17:26:05 -04:00

255 lines
8.5 KiB
C++

// /*****************************************************************************************
// * *
// * OpenSpace *
// * *
// * Copyright (c) 2014-2016 *
// * *
// * 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 above copyright notice and this permission notice shall be included in all copies *
// * or substantial portions of the Software. *
// * *
// * 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 <modules/iswa/rendering/textureplane.h>
#include <openspace/engine/openspaceengine.h>
#include <openspace/rendering/renderengine.h>
#include <ghoul/filesystem/filesystem>
#include <ghoul/io/texture/texturereader.h>
#include <ghoul/opengl/programobject.h>
#include <ghoul/opengl/texture.h>
#include <ghoul/opengl/textureunit.h>
#include <modules/kameleon/include/kameleonwrapper.h>
#include <openspace/scene/scene.h>
#include <openspace/scene/scenegraphnode.h>
#include <openspace/util/time.h>
#include <openspace/util/spicemanager.h>
namespace {
const std::string _loggerCat = "TexutePlane";
}
namespace openspace {
TexturePlane::TexturePlane(std::string path)
:ISWACygnet(path)
,_texture(nullptr)
, _quad(0)
, _vertexPositionBuffer(0)
, _futureTexture(nullptr)
{
_id = id();
setName("TexturePlane" + std::to_string(_id));
OsEng.gui()._property.registerProperty(&_enabled);
OsEng.gui()._property.registerProperty(&_cygnetId);
OsEng.gui()._property.registerProperty(&_path);
OsEng.gui()._property.registerProperty(&_updateInterval);
_path.setValue("${OPENSPACE_DATA}/"+ name() + ".jpg");
_cygnetId.onChange([this](){ updateTexture(); });
}
TexturePlane::~TexturePlane(){
}
bool TexturePlane::initialize(){
ISWACygnet::initialize();
glGenVertexArrays(1, &_quad); // generate array
glGenBuffers(1, &_vertexPositionBuffer); // generate buffer
createPlane();
if (_shader == nullptr) {
// Plane Program
RenderEngine& renderEngine = OsEng.renderEngine();
_shader = renderEngine.buildRenderProgram("PlaneProgram",
"${MODULE_ISWA}/shaders/cygnetplane_vs.glsl",
"${MODULE_ISWA}/shaders/cygnetplane_fs.glsl"
);
if (!_shader)
return false;
}
loadTexture();
return isReady();
}
bool TexturePlane::deinitialize(){
ISWACygnet::deinitialize();
glDeleteVertexArrays(1, &_quad);
_quad = 0;
glDeleteBuffers(1, &_vertexPositionBuffer);
_vertexPositionBuffer = 0;
RenderEngine& renderEngine = OsEng.renderEngine();
if (_shader) {
renderEngine.removeRenderProgram(_shader);
_shader = nullptr;
}
std::remove(absPath(_path.value()).c_str());
return true;
}
bool TexturePlane::isReady() const {
bool ready = true;
if (!_shader)
ready &= false;
if(!_texture)
ready &= false;
return ready;
};
void TexturePlane::render(){
psc position = _parent->worldPosition();
glm::mat4 transform = glm::mat4(1.0);
transform = glm::inverse(OsEng.renderEngine().camera()->viewRotationMatrix());
float textureRatio = (float (_texture->height()/float(_texture->width())));
transform = glm::scale(transform, glm::vec3(1000, 1000*textureRatio, 1));
glm::mat4 rotx = glm::rotate(transform, static_cast<float>(M_PI_2), glm::vec3(1, 0, 0));
glm::mat4 roty = glm::rotate(transform, static_cast<float>(M_PI_2), glm::vec3(0, 1, 0));
// glm::mat4 rot = glm::mat4(1.0);
/* for (int i = 0; i < 3; i++){
for (int j = 0; j < 3; j++){
transform[i][j] = static_cast<float>(_stateMatrix[i][j]);
}
}*/
//transform = transform * roty * rotx;
//position += transform*glm::vec4(-_pscOffset.x, _pscOffset.z, _pscOffset.y, _pscOffset.w);
// transform = glm::rotate(transform, _roatation.value()[0], glm::vec3(1,0,0));
// transform = glm::rotate(transform, _roatation.value()[1], glm::vec3(0,1,0));
// transform = glm::rotate(transform, _roatation.value()[2], glm::vec3(0,0,1));
// Activate shader
_shader->activate();
glEnable(GL_ALPHA_TEST);
glDisable(GL_CULL_FACE);
_shader->setUniform("ViewProjection", OsEng.renderEngine().camera()->viewProjectionMatrix());
_shader->setUniform("ModelTransform", transform);
setPscUniforms(_shader.get(), OsEng.renderEngine().camera(), position);
ghoul::opengl::TextureUnit unit;
unit.activate();
_texture->bind();
_shader->setUniform("texture1", unit);
glBindVertexArray(_quad);
glDrawArrays(GL_TRIANGLES, 0, 6);
glEnable(GL_CULL_FACE);
_shader->deactivate();
}
void TexturePlane::update(){
_time = Time::ref().currentTime();
_stateMatrix = SpiceManager::ref().positionTransformMatrix("GALACTIC", "GSM", Time::ref().currentTime());
if(_futureTexture && _futureTexture->isFinished){
_path.set(absPath("${OPENSPACE_DATA}/"+_futureTexture->filePath));
loadTexture();
delete _futureTexture;
_futureTexture = nullptr;
}
if((_time-_lastUpdateTime) >= _updateInterval){
updateTexture();
}
}
void TexturePlane::setParent(){
_parent = OsEng.renderEngine().scene()->sceneGraphNode("Sun");
}
void TexturePlane::updateTexture(){
int imageSize = 1024;
DownloadManager::FileFuture* future;
future = DlManager.downloadFile(
getiSWAurl(_cygnetId.value()),
absPath(_path.value()),
true,
[](const DownloadManager::FileFuture& f){
std::cout<<"download finished"<<std::endl;
}
);
if(future){
_futureTexture = future;
imageSize-=1;
}
_lastUpdateTime = _time;
}
void TexturePlane::loadTexture() {
std::unique_ptr<ghoul::opengl::Texture> texture = ghoul::io::TextureReader::ref().loadTexture(absPath(_path));
if (texture) {
LDEBUG("Loaded texture from '" << absPath(_path) << "'");
texture->uploadTexture();
// Textures of planets looks much smoother with AnisotropicMipMap rather than linear
texture->setFilter(ghoul::opengl::Texture::FilterMode::Linear);
_texture = std::move(texture);
}
}
void TexturePlane::createPlane() {
// ============================
// GEOMETRY (quad)
// ============================
const GLfloat x = 1.0;//_modelScale.x/2.0;
const GLfloat y = 1.0;//_modelScale.y/2.0;
const GLfloat w = 7.0;//_modelScale.w;
const GLfloat vertex_data[] = { // square of two triangles (sigh)
// x y z w s t
-x, -y, 0.0f, w, 0, 1,
x, y, 0.0f, w, 1, 0,
-x, y, 0.0f, w, 0, 0,
-x, -y, 0.0f, w, 0, 1,
x, -y, 0.0f, w, 1, 1,
x, y, 0.0f, w, 1, 0,
};
glBindVertexArray(_quad); // bind array
glBindBuffer(GL_ARRAY_BUFFER, _vertexPositionBuffer); // bind buffer
glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_data), vertex_data, GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(0));
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(sizeof(GLfloat) * 4));
}
int TexturePlane::id(){
static int id = 0;
return id++;
}
}// namespace openspace