void mainLoop()
{
while (!glfwWindowShouldClose(window) && !glfwGetKey(window, GLFW_KEY_ESCAPE))
{
glClear(GL_COLOR_BUFFER_BIT);
program.use();
program.setUniform("Material.Kd", 0.2f, 0.8f, 0.3f);
program.setUniform("Material.Ka", 0.2f, 0.6f, 0.3f);
program.setUniform("Material.Ks", 0.2f, 0.2f, 0.8f);
program.setUniform("Material.Shininess", 100.0f);
glm::mat4 mv = view * model;
program.setUniform("ModelViewMatrix", mv);
program.setUniform("NormalMatrix",
glm::mat3(glm::vec3(mv[0]), glm::vec3(mv[1]), glm::vec3(mv[2])));
glm::mat4 mvp = projection * mv;
program.setUniform("MVP", mvp);
cube->render();
glfwPollEvents();
glfwSwapBuffers(window);
}
}
void init()
{
glfwWindowHint(GLFW_SAMPLES, 15);
glViewport(0, 0, WIN_WIDTH, WIN_HEIGHT);
glClearColor(0.1f, 0.2f, 0.3f, 1.0f);
cube = new Cube(false, 1);
GLShader vert(GLShader::GLShaderType::VERTEX);
vert.readShader("fog.vert");
vert.compileShader();
GLShader frag(GLShader::GLShaderType::FRAGMENT);
frag.readShader("fog.frag");
frag.compileShader();
program.setShaders({ vert.getId(), frag.getId() });
program.link();
model = glm::mat4(1.0f);
view = glm::lookAt(eye, target, up);
projection = glm::perspective(45.0f, (float)WIN_WIDTH / WIN_HEIGHT, 0.1f, 100.0f);
program.use();
/*program.setUniform("Light[0].Position", view * worldLight);
program.setUniform("Light[0].Intensity", 0.8f, 0.5f, 0.5f);
worldLight = glm::vec4(7.0f, 5.0f, 5.0f, 1.0f);
program.setUniform("Light[1].Position", view * worldLight);
program.setUniform("Light[1].Intensity", -0.8f, 0.5f, 0.5f);
*/
program.setUniform("sli.Position", eye);
program.setUniform("sli.intensity", 0.8f, 0.5f, 0.5f);
program.setUniform("sli.direction", target);
program.setUniform("sli.exponent", 3);
program.setUniform("sli.cutoff", 0.1f);
}
void State::setUniform(GLProgram& prog, const QString& name, const glm::mat4& m)
{
/// @todo should work with mat4 and mat3
prog.setUniform(this, name, m);
}