};
std::vector<Light> lights = {
- { glm::vec3(0, 0, 3), glm::vec3(1) },
- { glm::vec3(0, 3, 0), glm::vec3(1) },
- { glm::vec3(3, 0, 0), glm::vec3(1) },
- { glm::vec3(3, 0, 0), glm::vec3(1) }
+ { glm::vec3(5, 2, -5), glm::vec3(1) },
+ { glm::vec3(0, 2, -5), glm::vec3(1) },
+ { glm::vec3(-5, 2, -5), glm::vec3(1) },
};
int activeLight = 0;
+bool discoLights = false;
+
int windowWidth = 800, windowHeight = 600;
float aspect() {
void display() {
glClearColor(0.5, 0.5, 0.5, 1);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+ glViewport(0, 0, windowWidth * 2, windowHeight * 2);
float d = (float)glutGet(GLUT_ELAPSED_TIME) * 0.001f;
glUseProgram(pbrProg->progId);
setProjectionAndViewUniforms(pbrProg->progId);
- glm::vec3 lightPositions[4], lightColors[4];
- for (int i = 0; i < 4; i++) {
+ glm::vec3 lightPositions[6], lightColors[6];
+ for (int i = 0; i < 3; i++) {
lightPositions[i] = lights[i].pos;
lightColors[i] = lights[i].color;
}
- glUniform3fv(glGetUniformLocation(pbrProg->progId, "lightPositions"), 4, glm::value_ptr(lightPositions[0]));
- glUniform3fv(glGetUniformLocation(pbrProg->progId, "lightColors"), 4, glm::value_ptr(lightColors[0]));
+ for (int i = 3; i < 6; i++) {
+ if (discoLights) {
+ auto m = glm::translate(glm::mat4(1.f), glm::vec3(-2.5, 0, 0));
+ m = glm::rotate(m, glm::radians(d * 100 + i * 30), glm::vec3(1, 0, 0));
+ m = glm::rotate(m, glm::radians(d * 100 + i * 30), glm::vec3(0, 1, 0));
+ m = glm::rotate(m, glm::radians(d * 100 + i * 30), glm::vec3(0, 0, 1));
+ lightPositions[i] = glm::vec3(m * glm::vec4(5, 0, 0, 1));
+ lightColors[i] = glm::vec3(0.2);
+ if (i == 3) lightColors[i].x = sin(d);
+ if (i == 4) lightColors[i].y = cos(d * 3);
+ if (i == 5) lightColors[i].z = cos(d);
+ } else {
+ lightPositions[i] = glm::vec3(0);
+ lightColors[i] = glm::vec3(0);
+ }
+ }
+
+ glUniform3fv(glGetUniformLocation(pbrProg->progId, "lightPositions"), 6, glm::value_ptr(lightPositions[0]));
+ glUniform3fv(glGetUniformLocation(pbrProg->progId, "lightColors"), 6, glm::value_ptr(lightColors[0]));
- pbr->draw(skyboxes[activeSkybox]);
+ /* pbr->getRoot()->model = glm::rotate(glm::mat4(1.f), glm::radians(d * 10), glm::vec3(0, 1, 0)); */
+ pbr->draw(skyboxes[activeSkybox], d * 1000);
for (Light &light: lights) drawLight(light);
+ if (discoLights) {
+ for (int i = 3; i < 6; i++) {
+ Light l { lightPositions[i], lightColors[i] };
+ drawLight(l);
+ }
+ }
+
skyboxes[activeSkybox].draw(projMat(), viewMat());
glutSwapBuffers();
pbrProg = new Program("pbrvert.glsl", "pbrfrag.glsl");
glUseProgram(pbrProg->progId);
- pbr = new Model("models/sphereMetal.gltf", *pbrProg);
+ pbr = new Model("models/newtonsCradle.gltf", *pbrProg);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
// prevent edge artifacts in specular cubemaps
glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
+
+ glViewport(0, 0, windowWidth, windowHeight);
}
bool* keyStates = new bool[256];
activeSkybox = (activeSkybox + 1) % skyboxes.size();
if (key == 'x')
activeLight = (activeLight + 1) % lights.size();
+ if (key == 'c')
+ discoLights = !discoLights;
}
void keyboardUp(unsigned char key, int x, int y) {
}
void reshape(int newWidth, int newHeight) {
- glViewport(0, 0, newWidth * 2, newHeight * 2);
windowWidth = newWidth, windowHeight = newHeight;
}
glutInitDisplayMode(GLUT_DEPTH|GLUT_DOUBLE|GLUT_RGB|GLUT_3_2_CORE_PROFILE);
glutInitWindowSize(windowWidth, windowHeight);
int win = glutCreateWindow("Physically Based Rendering");
+ makeRetina();
glutDisplayFunc(display);
glutReshapeFunc(reshape);
init();
- makeRetina();
-
glutKeyboardFunc(keyboard);
glutKeyboardUpFunc(keyboardUp);
glutTimerFunc(16, timer, 0);