static void
recalculate_matrices(struct ball *b)
{
mat4x4_identity(b->model_matrix);
mat4x4_translate_in_place(b->model_matrix, b->x, b->y, b->z);
mat4x4_scale_aniso(b->model_matrix, b->model_matrix, SCALE_FACTOR, SCALE_FACTOR, SCALE_FACTOR);
mat4x4_invert(b->normal_matrix, b->model_matrix);
mat4x4_transpose(b->normal_matrix, b->normal_matrix);
}
void S_Tick() {
// Riktningar och positioner
vec4 up;
vec4 forward;
vec4 pos;
mat4x4 inverted = {0};
mat4x4_invert(inverted, V_worldMat);
mat4x4_mul_vec4(up, inverted, (vec4) {0, 1, 0, 0});
mat4x4_mul_vec4(forward, inverted, (vec4) {0, 0, -1, 0});
mat4x4_mul_vec4(pos, inverted, (vec4) {0, 0, 0, 1});
float orientation[6];
memcpy(orientation, forward, sizeof(vec3));
memcpy(&orientation[3], up, sizeof(vec3));
alListenerfv(AL_ORIENTATION, orientation);
alListenerfv(AL_POSITION, pos);
ListEntry* e = S_sources.first;
for (int i = 0; i < S_sources.size; i++, e = e->next) {
AudioSource* s = e->value;
float* p = s->pos;
float* v = s->vel;
if (s->s != NULL) {
p = s->s->pos;
v = s->s->vel;
}
if (s->c != NULL) {
p = s->c->pos;
memset(v, 0, sizeof(vec3));
}
alSourcefv(s->sourceID, AL_POSITION, p);
alSourcefv(s->sourceID, AL_VELOCITY, v);
}
}
static void _norm_point_to_ray(game *g, Ray *r, float x, float y) {
vec4 near_point_ndc = {x, y, 1, 1};
vec4 far_point_ndc = {x, y, -1, 1};
mat4x4 inv_mvp;
mat4x4_invert(inv_mvp, g->d.mvp);
vec4 near_point_world, far_point_world;
mat4x4_mul_vec4(near_point_world, inv_mvp, near_point_ndc);
mat4x4_mul_vec4(far_point_world, inv_mvp, far_point_ndc);
divide_by_w(near_point_world);
divide_by_w(far_point_world);
vec3 between;
vec3_sub(between, far_point_world, near_point_world);
Ray ray = {
{near_point_world[0], near_point_world[1], near_point_world[2]},
{between[0], between[1], between[2]}
};
memcpy(r, &ray, sizeof(ray));
}
int main(void)
{
Primative *edits[] = {
primative_create(CUBE, ADDITIVE),
primative_create(SPHERE, ADDITIVE),
primative_create(SPHERE, SUBTRACTIVE),
primative_create(SPHERE, ADDITIVE)
};
primative_scale(edits[0], 0.4, 1.0, 1.5);
primative_translate(edits[1], 0.2, 0, 0);
primative_translate(edits[2], -0.3, 0, 0);
primative_translate(edits[3], -0.5, 0, 0);
primative_scale(edits[3], 0.5, 0.5, 0.5);
edits[1]->blend = 0.2;
sdf_args.edits = edits;
sdf_args.num_edits = 4;
vec3 origin = {0, 0, 0};
vec3 halfDim = {1, 1, 1};
OctTree *tree = octTree_create(origin, halfDim);
octTree_populate(tree, distance);
int num_verticies = octTree_count(tree);
size_t vert_size = sizeof(Point);
fprintf(stdout, "num verts %d\n", num_verticies);
int vi = 0;
Point *verticies = malloc(num_verticies * vert_size);
octTree_get_points(tree, verticies, &vi);
GLFWwindow* window;
mat4x4 ident;
mat4x4_identity(ident);
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
window = glfwCreateWindow(640, 480, "speed dream", NULL, NULL);
if (!window)
{
glfwTerminate();
exit(EXIT_FAILURE);
}
glfwMakeContextCurrent(window);
glfwSwapInterval(1);
glEnable(GL_PROGRAM_POINT_SIZE);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
glfwSetKeyCallback(window, key_callback);
mat4x4 proj;
mat4x4 view;
mat4x4 matrix;
mat4x4_identity(view);
mat4x4_identity(matrix);
vec3_set(camera.pos, 0.0f, 0.0f, 0.0f);
// Create Vertex Array Object
GLuint vao;
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
// Create a Vertex Buffer Object and copy the vertex data to it
GLuint vbo;
glGenBuffers(1, &vbo);
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glBufferData(GL_ARRAY_BUFFER, num_verticies * vert_size, verticies, GL_STATIC_DRAW);
// Create and compile the shaders
GLuint vertexShader = loadShader(GL_VERTEX_SHADER, DREAM_VERT);
GLuint fragmentShader = loadShader(GL_FRAGMENT_SHADER, DREAM_FRAG);
// Link the vertex and fragment shader into a shader program
GLuint shaderProgram = glCreateProgram();
glAttachShader(shaderProgram, vertexShader);
glAttachShader(shaderProgram, fragmentShader);
glBindFragDataLocation(shaderProgram, 0, "outColor");
glLinkProgram(shaderProgram);
glUseProgram(shaderProgram);
// Specify the layout of the vertex data
GLint posAttrib = glGetAttribLocation(shaderProgram, "position");
glEnableVertexAttribArray(posAttrib);
glVertexAttribPointer(posAttrib, 3, GL_FLOAT, GL_FALSE, vert_size, 0);
GLint normAttrib = glGetAttribLocation(shaderProgram, "normal");
glEnableVertexAttribArray(normAttrib);
glVertexAttribPointer(normAttrib, 3, GL_FLOAT, GL_FALSE, vert_size, (void*)(3 * sizeof(GLfloat)));
GLint colorAttrib = glGetAttribLocation(shaderProgram, "color");
glEnableVertexAttribArray(colorAttrib);
glVertexAttribPointer(colorAttrib, 3, GL_FLOAT, GL_FALSE, vert_size, (void*)(6 * sizeof(GLfloat)));
GLint uniModel = glGetUniformLocation(shaderProgram, "model");
GLint uniView = glGetUniformLocation(shaderProgram, "view");
GLint uniProj = glGetUniformLocation(shaderProgram, "proj");
vec3 lightPos = {3.f, 0.f, 3.f};
GLint uniLightPos = glGetUniformLocation(shaderProgram, "lightPos");
glUniform3fv(uniLightPos, 1, (const GLfloat *)&lightPos);
while (!glfwWindowShouldClose(window))
{
float ratio;
int width, height;
glfwGetFramebufferSize(window, &width, &height);
ratio = width / (float) height;
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
vec4 movement = {0, 0, 0, 1};
if (glfwGetKey(window, GLFW_KEY_RIGHT) == GLFW_PRESS)
movement[0] -= 0.1;
if (glfwGetKey(window, GLFW_KEY_LEFT) == GLFW_PRESS)
movement[0] += 0.1;
if (glfwGetKey(window, GLFW_KEY_UP) == GLFW_PRESS)
movement[2] += 0.1;
if (glfwGetKey(window, GLFW_KEY_DOWN) == GLFW_PRESS)
movement[2] -= 0.1;
if (glfwGetKey(window, GLFW_KEY_W) == GLFW_PRESS)
camera.pitch -= 0.05;
if (glfwGetKey(window, GLFW_KEY_S) == GLFW_PRESS)
camera.pitch += 0.05;
if (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS)
camera.yaw += 0.05;
if (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS)
camera.yaw -= 0.05;
mat4x4 pitch_mat;
mat4x4_identity(pitch_mat);
mat4x4_rotate_X(pitch_mat, pitch_mat, camera.pitch);
mat4x4 yaw_mat;
mat4x4_identity(yaw_mat);
mat4x4_rotate_Y(yaw_mat, yaw_mat, camera.yaw);
mat4x4 inv_yaw_mat;
mat4x4_invert(inv_yaw_mat, yaw_mat);
vec4 rotated_movement;
mat4x4_mul_vec4(rotated_movement, inv_yaw_mat, movement);
camera.pos[0] += rotated_movement[0];
camera.pos[1] += rotated_movement[1];
camera.pos[2] += rotated_movement[2];
mat4x4 translation_mat;
mat4x4_translate(translation_mat, camera.pos[0], camera.pos[1], camera.pos[2]);
mat4x4_mul(view, pitch_mat, yaw_mat);
mat4x4_mul(view, view, translation_mat);
glUniformMatrix4fv(uniView, 1, GL_FALSE, (const GLfloat *)&view);
mat4x4_perspective(proj, 60 * M_PI / 180, ratio, 0.1f, 10.0f);
glUniformMatrix4fv(uniProj, 1, GL_FALSE, (const GLfloat *)&proj);
glUniformMatrix4fv(uniModel, 1, GL_FALSE, (const GLfloat *)&matrix);
glDrawArrays(GL_POINTS, 0, num_verticies);
glfwSwapBuffers(window);
glfwPollEvents();
}
glDeleteProgram(shaderProgram);
glDeleteShader(fragmentShader);
glDeleteShader(vertexShader);
glDeleteBuffers(1, &vbo);
glDeleteVertexArrays(1, &vao);
glfwDestroyWindow(window);
free(verticies);
glfwTerminate();
exit(EXIT_SUCCESS);
}