diff options
Diffstat (limited to 'src/glwidget.cpp')
| -rwxr-xr-x | src/glwidget.cpp | 169 |
1 files changed, 167 insertions, 2 deletions
diff --git a/src/glwidget.cpp b/src/glwidget.cpp index 1e9b26b..47df4f5 100755 --- a/src/glwidget.cpp +++ b/src/glwidget.cpp @@ -3,6 +3,11 @@ #include <QApplication> #include <QKeyEvent> #include <iostream> +#define STB_IMAGE_IMPLEMENTATION + +#include "stb/stb_image.h" + + #define SPEED 1.5 #define ROTATE_SPEED 0.0025 @@ -45,12 +50,20 @@ GLWidget::GLWidget(QWidget *parent) : // Function tick() will be called once per interva connect(&m_intervalTimer, SIGNAL(timeout()), this, SLOT(tick())); + + //m_skybox = new skybox(); } GLWidget::~GLWidget() { if (m_defaultShader != nullptr) delete m_defaultShader; if (m_pointShader != nullptr) delete m_pointShader; + if (m_foamShader != nullptr) delete m_foamShader; + + if (m_skyboxShader != nullptr) delete m_skyboxShader; + //if (m_skybox != nullptr) delete m_skybox; + + } // ================== Basic OpenGL Overrides @@ -64,9 +77,13 @@ void GLWidget::initializeGL() fprintf(stdout, "Successfully initialized GLEW %s\n", glewGetString(GLEW_VERSION)); // Set clear color to white - glClearColor(1, 0.98f, 0.85f, 1); + glClearColor(0, 0, 0, 1); +// glEnable(GL_DEPTH_TEST); +// glEnable(GL_CULL_FACE); +// glEnable(GL_BLEND); +// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - // Enable depth-testing and backface culling +// // Enable depth-testing and backface culling glEnable(GL_DEPTH_TEST); // glEnable(GL_CULL_FACE); // glCullFace(GL_BACK); @@ -78,9 +95,28 @@ void GLWidget::initializeGL() m_pointShader = new Shader(":resources/shaders/anchorPoint.vert", ":resources/shaders/anchorPoint.geom", ":resources/shaders/anchorPoint.frag"); // m_texture_shader = new Shader(":/resources/shaders/texture.vert", ":/resources/shaders/texture.frag"); m_colorShader = new Shader(":resources/shaders/color.vert", ":resources/shaders/color.frag"); + m_foamShader = new Shader(":resources/shaders/foam.vert", ":resources/shaders/foam.frag"); + m_skyboxShader = new Shader(":resources/shaders/skybox.vert", ":resources/shaders/skybox.frag"); + + // specify texture for skybox +// m_skyboxShader->bind(); +// glUniform1i(glGetUniformLocation(m_skyboxShader->id(), "cubeMap"), 9); // bind texture at slot 9 +// Eigen::Vector3f sc = Eigen::Vector3f(.77f, .85f, .99f); // skycolor for fade effect +// glUniform3f(glGetUniformLocation(m_skyboxShader->id(), "skyColor"), sc[0], sc[1], sc[2]); +// m_skyboxShader->unbind(); + + + m_halftone_tex = loadTextureFromFile(":resources/images/halftone.png").textureID; + m_foam_tex = loadTextureFromFile(":resources/images/foam3.png").textureID; + + m_causticsShader = new Shader(":resources/shaders/caustics.vert", ":resources/shaders/caustics.frag"); initCaustics(); + + // init skybox stuff + m_skybox.initializeVAO(); + // INITIALIZE TEXTURE STUFF // Prepare filepath @@ -162,6 +198,9 @@ void GLWidget::initializeGL() m_camera.lookAt(eye, target); m_camera.setOrbitPoint(target); m_camera.setPerspective(120, width() / static_cast<float>(height()), nearPlane, farPlane); + m_camera.setPosition(Eigen::Vector3f( 0, + 0, + 0)); m_deltaTimeProvider.start(); m_intervalTimer.start(1000 / 60); @@ -398,8 +437,131 @@ void GLWidget::paintGL() // m_pointShader->setUniform("height", height()); // m_arap.draw(m_pointShader, GL_POINTS); // m_pointShader->unbind(); + +// m_foamShader->bind(); +// m_foamShader->setUniform("proj", m_camera.getProjection()); +// m_foamShader->setUniform("view", m_camera.getView()); +//// m_foamShader->setUniform("vSize", m_vSize); +//// m_foamShader->setUniform("width", width()); +//// m_foamShader->setUniform("height", height()); +// glUniform1f(glGetUniformLocation(m_foamShader->id(), "time"), m_arap.getTime()); +// glUniform1f(glGetUniformLocation(m_foamShader->id(), "phaseC"), 1.f); +// m_foamShader->setUniform("widthBounds", m_arap.minCorner[0], m_arap.maxCorner[0]); +// m_foamShader->setUniform("lengthBounds", m_arap.minCorner[2], m_arap.maxCorner[2]); +// +// glActiveTexture(GL_TEXTURE5); +// glBindTexture(GL_TEXTURE_2D, m_halftone_tex); +// glUniform1i(glGetUniformLocation(m_foamShader->id(), "halftone_texture"), 5); +// +// glActiveTexture(GL_TEXTURE6); +// glBindTexture(GL_TEXTURE_2D, m_foam_tex); +// glUniform1i(glGetUniformLocation(m_foamShader->id(), "foam_texture"), 6); + + + + +// m_arap.drawFoam(m_foamShader, GL_TRIANGLES); +// m_foamShader->unbind(); +// +// // skybox +// +// +// +// m_skybox.draw(m_skyboxShader, m_camera); + + + } +TextureData GLWidget::loadTextureFromFile(const char *path) +{ + std::string filename = std::string(path); + + GLuint textureID; + glGenTextures(1, &textureID); + + int width, height, nrComponents; + stbi_set_flip_vertically_on_load(true); + unsigned char *data = stbi_load(filename.c_str(), &width, &height, &nrComponents, 0); + stbi_set_flip_vertically_on_load(false); + if (data) + { + GLenum format; + if (nrComponents == 1) + format = GL_RED; + else if (nrComponents == 3) + format = GL_RGB; + else if (nrComponents == 4) + format = GL_RGBA; + + glBindTexture(GL_TEXTURE_2D, textureID); + glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, data); + glGenerateMipmap(GL_TEXTURE_2D); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + stbi_image_free(data); + + } + else + { + std::cout << "Texture failed to load at path: " << path << std::endl; + stbi_image_free(data); + } + + TextureData newtex; + newtex.textureID = textureID; + newtex.height = height; + newtex.width = width; + return newtex; +} + +GLuint GLWidget::loadCubeMap(std::vector<const char*> textureFiles){ + std::cout << "hello 111" << std::endl; + + // create empty texture + GLuint textureID; + glGenTextures(1, &textureID); + + std::cout << "hello fssd" << std::endl; + + + //glActiveTexture(GL_TEXTURE3); + glBindTexture(GL_TEXTURE_CUBE_MAP, textureID); + + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER,GL_LINEAR); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER,GL_LINEAR); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); + + std::cout << "hello fssd" << std::endl; + + GLuint target = GL_TEXTURE_CUBE_MAP_POSITIVE_X; + for (int i=0; i<6; i++){ + std::string filename = std::string(textureFiles[i]);//directory + '/' + filename; + int width, height, nrChannels; + unsigned char* data = stbi_load(filename.c_str(), &width, &height, &nrChannels, 0); + + if (data){ + stbi_set_flip_vertically_on_load(false); + glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data); + stbi_image_free(data); + + } else { + std::cout << "Texture failed to load at path: " << textureFiles[i] << std::endl; + stbi_image_free(data); + } + } + + return textureID; +} + + + void GLWidget::resizeGL(int w, int h) { glViewport(0, 0, w, h); @@ -568,6 +730,8 @@ void GLWidget::tick() { float deltaSeconds = m_deltaTimeProvider.restart() / 1000.f; m_arap.update(deltaSeconds); + // rotate skybox + m_skybox.update(deltaSeconds); // Move camera auto look = m_camera.getLook(); @@ -579,6 +743,7 @@ void GLWidget::tick() moveVec *= deltaSeconds; m_camera.move(moveVec); + // Flag this view for repainting (Qt will call paintGL() soon after) update(); } |