void render_set_external_volume(float *volume_ptr, vector3ui size)
{
IF_FAILED(init && volume_ptr);
render_set_volume_size(size, 0);
memcpy(volume, volume_ptr, sizeof(float) * volume_size.x*volume_size.y*volume_size.z);
render_update_volume_tex();
render_update_mc();
}
int render_init(void)
{
IF_FAILED0(!init);
if(!init_opengl) {
ERROR_MSG("OpenGL not initialised\n");
return 0;
}
log_init();
TRACE_MSG("init base render system\n");
TRACE_MSG("init noise\n");
noise_init();
glViewport(0, 0, window_width, window_height);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glEnable(GL_DEPTH_TEST);
glClearDepth(1.0f);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_CLAMP);
DEBUG_MSG("OpenGL version: %s\n", glGetString(GL_VERSION));
DEBUG_MSG("GLSL version: %s\n", (char*) glGetString(GL_SHADING_LANGUAGE_VERSION));
// настраиваем основную камеру
TRACE_MSG("init main camera\n");
camera_init(&camera, vec3f(0.0f, 0.0f, 0.5f), vec3f(0.0f, 1.0f, 0.0f), vec3f(0.0f, 0.0f, -1.0f));
camera_set_limit(&camera, -95.0f, 95.0f, -360.0f, 360.0f);
camera_set_fov(&camera, camera_fov);
camera_set_move_velocity(&camera, camera_move_speed);
camera_set_rotate_velocity(&camera, camera_rotate_speed);
camera_set_aspect(&camera, (float) window_width / (float) window_height);
camera_set_zplanes(&camera, 0.001f, 1000.0f);
camera_update(&camera, 0.0);
isolevel = 30.0f;
isolevel_animate = 0;
// устанавливаем функцию по-умолчанию
parser_create(&parser);
const char *default_func = "d = y;";
str_function = (char*) malloc(sizeof(char) * (strlen(default_func) + 1));
strcpy(str_function, default_func);
// настраиваем и создаем скалярное поле
render_set_volume_size(vec3ui(128, 128, 128), 1);
render_set_grid_size(vec3ui(64, 64, 64));
render_update_volume_tex();
CHECK_GL_ERRORS();
// инициализируем шейдер
if(!init_shader())
return 0;
// инициализируем буферы с данными
init_buffers();
// устанавливаем параметры по-умолчанию
new_light_position = light_position = vec3f(1.0f, 1.0f, 1.0f);
rot_axis = vec3f(0.0f, 1.0f, 0.0f);
num_threads = 1;
rot_angle = 0.0f;
light_animate = 0;
light_rot_angle = 0.0f;
mat4(rotmat, 1.0f);
mat4(modelmat, 1.0f);
material_front_color = vec3f(0.5f, 0.5f, 0.5f);
material_back_color = vec3f(0.5f, 0.0f, 0.0f);
light_color = vec3f(1.0f, 1.0f, 1.0f);
light_spec_color = vec3f(1.0f, 1.0f, 1.0f);
input_set_wheel_limits(20, 150);
init = 1;
// полигонизируем ск. п.
render_update_mc();
// обновляем рендер
render_update(0.0f);
return 1;
}
void GLWindow::begin_generation()
{
render_set_grid_size(grid_size);
render_set_volume_size(volume_size);
render_update_volume_tex();
}
