void text::draw( platform::context &ctxt )
{
if ( _update )
update( ctxt );
if ( _mesh.valid() )
{
auto &fgc = _stash->_font_glyph_cache;
auto x = fgc.find( _font );
if ( x != fgc.end() )
{
std::shared_ptr<gl::texture> texture = x->second.texture;
gl::api &ogl = ctxt.api();
ogl.save_matrix();
ogl.model_matrix().scale( to_api( _scale[0] ), to_api( _scale[1] ) );
ogl.model_matrix().translate( to_api( _pos[0] ), to_api( _pos[1] ) );
auto txt = texture->bind();
auto b = _mesh.bind();
// std::cout << "scale: " << _scale[0] << " (" << to_api( _scale[0] ) << ")"
// << _scale[1] << " (" << to_api(_scale[1]) << ")" << std::endl;
// std::cout << "pos: " << _pos[0] << " (" << to_api( _pos[0] ) << ")"
// << _pos[1] << " (" << to_api(_pos[1]) << ")" << std::endl;
// std::cout << "draw matrix: " << ogl.current_matrix() << std::endl;
b.set_uniform( _mat_pos, ogl.current_matrix() );
b.set_uniform( _col_pos, _color );
b.set_uniform( _tex_pos, static_cast<int>( txt.unit() ) );
b.draw();
ogl.restore_matrix();
}
}
}
void rectangle::draw( platform::context &ctxt )
{
initialize( ctxt );
auto bound = _stash->_mesh.bind();
bound.set_uniform( _stash->_matrix_loc, _rect * ctxt.api().current_matrix() );
bound.set_uniform( _stash->_color_loc, _color );
bound.draw();
}
void GBufferPass::display_quads(RenderContext const& ctx,
SerializedScene const& scene,
CameraMode eye,
View const& view)
{
auto meshubershader = ubershaders_[typeid(node::TriMeshNode)];
if (!scene.textured_quads_.empty()) {
meshubershader->get_program()->use(ctx);
{
for (auto const& node : scene.textured_quads_) {
std::string texture_name(node->get_texture());
if (node->is_stereo_texture()) {
if (eye == CameraMode::LEFT) {
texture_name += "_left";
} else if (eye == CameraMode::RIGHT) {
texture_name += "_right";
}
}
if (TextureDatabase::instance()->is_supported(texture_name)) {
auto texture = TextureDatabase::instance()->lookup(texture_name);
auto mapped_texture(
meshubershader->get_uniform_mapping()->get_mapping(
"gua_textured_quad", "texture"));
meshubershader->set_uniform(
ctx, texture, mapped_texture.first, mapped_texture.second);
auto mapped_flip_x(meshubershader->get_uniform_mapping()->get_mapping(
"gua_textured_quad", "flip_x"));
meshubershader->set_uniform(
ctx, node->flip_x(), mapped_flip_x.first, mapped_flip_x.second);
auto mapped_flip_y(meshubershader->get_uniform_mapping()->get_mapping(
"gua_textured_quad", "flip_y"));
meshubershader->set_uniform(
ctx, node->flip_y(), mapped_flip_y.first, mapped_flip_y.second);
}
meshubershader->draw(
ctx,
"gua_plane_geometry",
"gua_textured_quad",
node->get_scaled_world_transform(),
scm::math::inverse(node->get_scaled_world_transform()),
scene.frustum,
view);
}
}
meshubershader->get_program()->unuse(ctx);
}
}
void do_stuff() {
float eyepoint[3], viewpoint[3];
int k;
glEnable(GL_DEPTH_TEST);
glClearColor(0.8, 0.6, 0.62, 1.0);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 1);
glUseProgram(0);
for (k=0; k<3; k++) {
eyepoint[k] = light0_position[k];
viewpoint[k] = light0_direction[k] + light0_position[k];
}
view_volume(eyepoint, viewpoint);
drawquads();
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
save_matrix(eyepoint, viewpoint);
glUseProgram(sprogram);
set_uniform(sprogram);
glActiveTexture(GL_TEXTURE7);
glBindTexture(GL_TEXTURE_2D, 1);
eyepoint[0] = 1.0; eyepoint[1] = 2.0; eyepoint[2] = 2.0;
viewpoint[0] = 0.0; viewpoint[1] = 0.0; viewpoint[2] = 0.0;
view_volume(eyepoint, viewpoint);
drawquads();
glutSwapBuffers();
}
void MaterialShaderMethod::set_uniforms_from_serialized_string(std::string const& value) {
auto tokens(string_utils::split(value, ';'));
for (auto& token : tokens) {
auto parts(string_utils::split(token, '#'));
set_uniform(parts[0], ViewDependentUniform::create_from_serialized_string(parts[1]));
}
}
void render_terrain_chunk(App *app, TerrainChunk *chunk, Model *model) {
mat4 model_view;
model_view = glm::translate(model_view, vec3(chunk->x * CHUNK_SIZE_X, 0.0f, chunk->y * CHUNK_SIZE_Y));
mat3 normal = glm::inverseTranspose(mat3(model_view));
if (shader_has_uniform(app->current_program, "uNMatrix")) {
set_uniform(app->current_program, "uNMatrix", normal);
}
if (shader_has_uniform(app->current_program, "uMVMatrix")) {
set_uniform(app->current_program, "uMVMatrix", model_view);
}
if (shader_has_uniform(app->current_program, "in_color")) {
set_uniform(app->current_program, "in_color", vec4(0.0f, 0.3f, 0.1f, 1.0f));
}
use_model_mesh(app, &model->mesh);
glDrawElements(GL_TRIANGLES, model->mesh.data.indices_count, GL_UNSIGNED_INT, 0);
}
static void set_brush_uniform(struct brush *b, const char *n,
int r, int c, int d, const float *v)
{
struct uniform *u;
/* Apply the given values to the uniform cache and OpenGL state. */
if ((u = get_uniform(b, n)))
{
set_uniform(u, r, c, d, v);
use_uniform(b, u);
}
}
void from_distribution(const Distribution& distribution, const int& new_size)
{
// we first create a local array to sample to. this way, if this
// is passed as an argument the locations and pmf are not overwritten
// while sampling
LocationArray new_locations(new_size);
for(int i = 0; i < new_size; i++)
{
new_locations[i] = distribution.sample();
}
set_uniform(new_size);
locations_ = new_locations;
}
MaterialShaderMethod& MaterialShaderMethod::load_from_json(std::string const& json_string) {
Json::Value value;
Json::Reader reader;
if (!reader.parse(json_string, value)) {
Logger::LOG_WARNING << "Failed to parse material method description: "
"Invalid json String!" << std::endl;
return *this;
}
if (value["name"] != Json::Value::null &&
value["source"] != Json::Value::null) {
set_name(value["name"].asString());
set_source(value["source"].asString());
if (value["uniforms"] != Json::Value::null &&
value["uniforms"].isArray()) {
for (int i(0); i < value["uniforms"].size(); ++i) {
auto uniform_string(value["uniforms"][i]);
if (uniform_string["name"] != Json::Value::null &&
uniform_string["type"] != Json::Value::null &&
uniform_string["value"] != Json::Value::null) {
auto uniform(UniformValue::create_from_strings(
uniform_string["value"].asString(),
uniform_string["type"].asString()
));
set_uniform(uniform_string["name"].asString(), ViewDependentUniform(uniform));
} else {
Logger::LOG_WARNING << "Failed to load uniform: "
"Please provide name, type and value in the description!"
<< std::endl;
}
}
}
} else {
Logger::LOG_WARNING << "Failed to load material method: "
"Please provide name and source in the description!"
<< std::endl;
}
return *this;
}
int main(int argc,char** argv)
{
int p;
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_DOUBLE|GLUT_DEPTH);
glutInitWindowSize(500,500);
glutInitWindowPosition(100,100);
glutCreateWindow("phong shaded teapot");
glActiveTexture(GL_TEXTURE0);
load_texture(argv[1],1);
glActiveTexture(GL_TEXTURE1);
load_texture(argv[2],2);
glEnable(GL_DEPTH_TEST);
view_volume();
set_light();
set_material();
p = set_shaders();
set_uniform(p);
glutDisplayFunc(renderScene);
//glutIdleFunc(renderScene);
glutMainLoop();
return 0;
}
void gl_display_object(t_resources *res, t_mesh *mesh, t_mode mode)
{
t_mat *model_mat;
set_uniform(res, mode);
if (mode == MODE_COLOR)
glUseProgram(res->shader_color->program_id);
else
glUseProgram(res->shader_texture->program_id);
model_mat = model_matrix(mesh);
glUniformMatrix4fv(get_uniform_id(&res->gl_model_uni, mode),
1, GL_FALSE, model_mat->array);
bind_buffer(mesh->gl_buff_vertex, 0, 3);
if (mode == MODE_COLOR)
bind_buffer(mesh->gl_buff_colors, 1, 3);
else
bind_buffer(mesh->gl_buff_uv, 1, 2);
bind_buffer(mesh->gl_buff_normal, 2, 3);
glDrawArrays(GL_TRIANGLES, 0, mesh->size);
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
free(model_mat);
}
inline int basic_gridmap<T>::set_uniform(const T v)
{
return set_uniform(&v);
}
int main(int argc, char** argv) {
// initialize guacamole
gua::init(argc, argv);
/////////////////////////////////////////////////////////////////////////////
// create a set of materials
/////////////////////////////////////////////////////////////////////////////
// create simple untextured material shader
auto pbr_keep_input_desc = std::make_shared<gua::MaterialShaderDescription>("./data/materials/PBR_use_input_color.gmd");
auto pbr_uniform_color_desc = std::make_shared<gua::MaterialShaderDescription>("./data/materials/PBR_uniform_color.gmd");
//use this material for models where shading does not make sense
auto pbr_keep_color_shader(std::make_shared<gua::MaterialShader>("PBR_pass_input_color", pbr_keep_input_desc));
auto pbr_overwrite_color_shader(std::make_shared<gua::MaterialShader>("PBR_overwrite_input_color", pbr_uniform_color_desc));
gua::MaterialShaderDatabase::instance()->add(pbr_keep_color_shader);
gua::MaterialShaderDatabase::instance()->add(pbr_overwrite_color_shader);
// create different materials for point-based input
auto plod_glossy = pbr_keep_color_shader->make_new_material();
auto plod_rough = pbr_keep_color_shader->make_new_material();
auto plod_passthrough = pbr_keep_color_shader->make_new_material();
// glossy has high metalness, low roughness and no emissivity (=no passthrough)
plod_glossy->set_uniform("metalness", 1.0f);
plod_glossy->set_uniform("roughness", 0.3f);
plod_glossy->set_uniform("emissivity", 0.0f);
// rough has no metalness, high roughness and no emissivity (=no passthrough)
plod_rough->set_uniform("metalness", 0.0f);
plod_rough->set_uniform("roughness", 0.8f);
plod_rough->set_uniform("emissivity", 1.0f);
// passthrough has emissivity of 1.0
plod_passthrough->set_uniform("emissivity", 1.0f);
auto rough_white = pbr_overwrite_color_shader->make_new_material();
rough_white->set_uniform("color", gua::math::vec3f(1.0f, 1.0f, 1.0f));
rough_white->set_uniform("metalness", 0.0f);
rough_white->set_uniform("roughness", 0.8f);
rough_white->set_uniform("emissivity", 0.0f);
auto rough_red = pbr_overwrite_color_shader->make_new_material();
rough_red->set_uniform("color", gua::math::vec3f(0.8f, 0.0f, 0.0f));
rough_red->set_uniform("metalness", 0.0f);
rough_red->set_uniform("roughness", 0.8f);
rough_red->set_uniform("emissivity", 0.0f);
// setup scene
gua::SceneGraph graph("main_scenegraph");
gua::LodLoader plodLoader;
plodLoader.set_upload_budget_in_mb(32);
plodLoader.set_render_budget_in_mb(2048);
plodLoader.set_out_of_core_budget_in_mb(4096);
auto transform = graph.add_node<gua::node::TransformNode>("/", "transform");
auto model_xf = graph.add_node<gua::node::TransformNode>("/transform", "model_xf");
auto setup_plod_node = [](std::shared_ptr<gua::node::PLodNode> const& node) {
node->set_radius_scale(1.0f);
node->set_enable_backface_culling_by_normal(false);
node->set_draw_bounding_box(true);
};
#if WIN32
auto plod_pig_node = plodLoader.load_lod_pointcloud("plod_pig", "data/objects/Area_4_hunter_with_bow_knn.bvh", plod_rough, gua::LodLoader::NORMALIZE_POSITION | gua::LodLoader::NORMALIZE_SCALE | gua::LodLoader::MAKE_PICKABLE);
#else
auto plod_pig_node = plodLoader.load_lod_pointcloud("plod_pig", "/mnt/pitoti/3d_pitoti/groundtruth_data/rocks/seradina12c/areas/objects/Area_4_hunter_with_bow_knn.bvh", plod_rough, gua::LodLoader::NORMALIZE_POSITION | gua::LodLoader::NORMALIZE_SCALE | gua::LodLoader::MAKE_PICKABLE);
#endif
plod_pig_node->scale(5.0, 5.0, 5.0);
plod_pig_node->rotate(269, gua::math::vec3(0.0, 0.0, 1.0));
gua::TriMeshLoader loader;
auto root_plod_pig_model = graph.add_node("/", plod_pig_node);
auto nav = graph.add_node<gua::node::TransformNode>("/", "nav");
nav->translate(0.0, 0.0, 1.0);
#if WIN32
auto window = std::make_shared<gua::OculusWindow>(":0.0");
gua::WindowDatabase::instance()->add("main_window", window);
window->config.set_enable_vsync(false);
window->config.set_fullscreen_mode(false);
window->open();
#else
auto window = std::make_shared<gua::OculusWindow>(":0.0");
gua::WindowDatabase::instance()->add("main_window", window);
window->config.set_enable_vsync(false);
window->config.set_fullscreen_mode(true);
window->config.set_size(window->get_window_resolution());
window->config.set_resolution(window->get_window_resolution());
window->open();
#endif
//get the resolution from the oculus window
gua::math::vec2ui res(window->get_window_resolution());
auto resolve_pass = std::make_shared<gua::ResolvePassDescription>();
resolve_pass->background_mode(gua::ResolvePassDescription::BackgroundMode::QUAD_TEXTURE);
resolve_pass->tone_mapping_exposure(1.0f);
auto neck = graph.add_node<gua::node::TransformNode>("/nav", "neck");
auto camera = graph.add_node<gua::node::CameraNode>("/nav/neck", "cam");
float camera_trans_y = 0.0;
float camera_trans_z = 0.0;
camera->translate(0.0, camera_trans_y, camera_trans_z);
camera->config.set_resolution( res );
camera->config.set_left_screen_path("/nav/neck/cam/left_screen");
camera->config.set_right_screen_path("/nav/neck/cam/right_screen");
camera->config.set_scene_graph_name("main_scenegraph");
camera->config.set_output_window_name("main_window");
camera->config.set_enable_stereo(true);
camera->config.set_eye_dist(window->get_IPD());
auto pipe = std::make_shared<gua::PipelineDescription>();
pipe->add_pass(std::make_shared<gua::PLodPassDescription>());
pipe->add_pass(std::make_shared<gua::LightVisibilityPassDescription>());
pipe->add_pass(std::make_shared<gua::ResolvePassDescription>());
camera->set_pipeline_description(pipe);
// retreive the complete viewing setup from the oculus window
//**************
auto left_screen = graph.add_node<gua::node::ScreenNode>("/nav/neck/cam", "left_screen");
left_screen->data.set_size(window->get_left_screen_size());
left_screen->translate(window->get_left_screen_translation());
auto right_screen = graph.add_node<gua::node::ScreenNode>("/nav/neck/cam", "right_screen");
right_screen->data.set_size(window->get_right_screen_size());
right_screen->translate(window->get_right_screen_translation());
//****************/
gua::Renderer renderer;
gua::Timer timer;
timer.start();
double time(0);
float desired_frame_time(1.0 / 60.0);
gua::events::MainLoop loop;
// application loop
gua::events::Ticker ticker(loop, desired_frame_time);
ticker.on_tick.connect([&]() {
double frame_time(timer.get_elapsed());
time += frame_time;
timer.reset();
window->process_events();
std::function<void (std::shared_ptr<gua::node::Node>, int)> rotate;
rotate = [&](std::shared_ptr<gua::node::Node> node, int depth) {
node->rotate(frame_time * (1+depth) * 0.5, 1, 1, 0);
for (auto child: node->get_children()) {
rotate(child, ++depth);
}
};
float frame_offset = 1.0 * frame_time;
camera->set_transform(window->get_oculus_sensor_orientation());
//neck->set_transform(window->get_oculus_sensor_orientation());
renderer.queue_draw({&graph});
});
loop.start();
return 0;
}
void KinectDataRenderer::init(Camera *camera)
{
this->camera = camera;
///--- Create vertex array object
if(!vao.isCreated()){
bool success = vao.create();
assert(success);
vao.bind();
}
///--- Load/compile shaders
if (!program.isLinked()) {
const char* vshader = ":/KinectDataRenderer/KinectDataRenderer_vshader.glsl";
const char* fshader = ":/KinectDataRenderer/KinectDataRenderer_fshader.glsl";
bool vok = program.addShaderFromSourceFile(QGLShader::Vertex, vshader);
bool fok = program.addShaderFromSourceFile(QGLShader::Fragment, fshader);
bool lok = program.link ();
assert(lok && vok && fok);
bool success = program.bind();
assert(success);
}
///--- Used to create connectivity
Grid grid(camera->width(),camera->height());
///--- Create vertex buffer/attributes "position"
{
bool success = vertexbuffer.create();
assert(success);
vertexbuffer.setUsagePattern( QGLBuffer::StaticDraw );
success = vertexbuffer.bind();
assert(success);
vertexbuffer.allocate( grid.vertices.data(), grid.vertices.size() * sizeof(GLfloat) );
program.setAttributeBuffer("vpoint", GL_FLOAT, 0, 2 );
program.enableAttributeArray("vpoint");
}
///--- Create vertex buffer/attributes "uv"
{
bool success = uvbuffer.create();
assert(success);
uvbuffer.setUsagePattern( QGLBuffer::StaticDraw );
success = uvbuffer.bind();
assert(success);
uvbuffer.allocate( grid.texcoords.data(), grid.texcoords.size() * sizeof(GLfloat) );
program.setAttributeBuffer("uv", GL_FLOAT, 0, 2 );
program.enableAttributeArray("uv");
}
///--- Create the index "triangle" buffer
{
bool success = indexbuffer.create();
assert(success);
indexbuffer.setUsagePattern( QGLBuffer::StaticDraw );
success = indexbuffer.bind();
assert(success);
indexbuffer.allocate( grid.indices.data(), grid.indices.size() * sizeof(unsigned int) );
}
///--- Create texture to colormap the point cloud
{
// const int sz=2; GLfloat tex[3*sz] = {/*green*/ 0.000, 1.000, 0, /*red*/ 1.000, 0.000, 0,};
// const int sz=2; GLfloat tex[3*sz] = {/*gray*/ .1, .1, .1, /*black*/ 0.8, 0.8, 0.8};
const int sz=3; GLfloat tex[3*sz] = {/*red*/ 1.000, 0.000, 0, /*yellow*/ 1.0, 1.0, 0.0, /*green*/ 0.000, 1.000, 0};
glActiveTexture(GL_TEXTURE2);
glGenTextures(1, &texture_id_cmap);
glBindTexture(GL_TEXTURE_1D, texture_id_cmap);
glTexImage1D(GL_TEXTURE_1D, 0, GL_RGB, sz, 0, GL_RGB, GL_FLOAT, tex);
glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_1D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_1D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
program.setUniformValue("colormap", 2 /*GL_TEXTURE2*/);
}
///--- @todo upload data to do inverse projection
set_uniform("inv_proj_matrix",camera->inv_projection_matrix());
///--- upload near/far planes
set_zNear(camera->zNear());
set_zFar(camera->zFar());
// set_alpha(1.0); ///< default no alpha blending
set_alpha(.7); ///< default no alpha blending
set_discard_cosalpha_th(.3); ///< default sideface clipping
///--- save for glDrawElements
num_indexes = grid.indices.size();
num_vertices = grid.vertices.size();
///--- Avoid pollution
program.release();
vao.release();
}
void KinectDataRenderer::enable_colormap(bool enable){
set_uniform("enable_colormap", (enable)?+1.0f:-1.0f);
}
void KinectDataRenderer::set_zFar(float alpha){
set_uniform("zFar",alpha);
}
void KinectDataRenderer::set_alpha(float alpha){
set_uniform("alpha", alpha);
this->alpha = alpha;
}
void KinectDataRenderer::set_discard_cosalpha_th(float val){
set_uniform("discard_cosalpha_th", val);
}
/**
* edges using geometry shader.
*/
int build_triangle_edges(lulog *log, GLuint *program) {
int status = LU_OK;
luary_uint32 *shaders = NULL;
try(compile_shader_from_file(log, GL_VERTEX_SHADER, "flat_model_g.vert", &shaders));
try(compile_shader_from_file(log, GL_GEOMETRY_SHADER, "edge_lines.geom", &shaders));
try(compile_shader_from_file(log, GL_FRAGMENT_SHADER, "direct_colour.frag", &shaders));
try(link_program(log, shaders, program));
finally:
status = free_shaders(log, &shaders, status);
return status;
}
/**
* copy a frame by rendering a texture directly (needs a quad to select the area).
*/
int build_direct_texture(lulog *log, direct_texture *program) {
int status = LU_OK;
luary_uint32 *shaders = NULL;
try(compile_shader_from_file(log, GL_VERTEX_SHADER, "direct_texture.vert", &shaders));
try(compile_shader_from_file(log, GL_FRAGMENT_SHADER, "direct_texture.frag", &shaders));
try(link_program(log, shaders, &program->name));
try(set_uniform(log, program->name, "frame", &program->frame, 0));
finally:
status = free_shaders(log, &shaders, status);
return status;
}
/**
* merge two frames via textures.
*/
int build_merge_frames(lulog *log, merge_frames *program) {
int status = LU_OK;
luary_uint32 *shaders = NULL;
try(compile_shader_from_file(log, GL_VERTEX_SHADER, "direct_texture.vert", &shaders));
try(compile_shader_from_file(log, GL_FRAGMENT_SHADER, "merge_frames.frag", &shaders));
try(link_program(log, shaders, &program->name));
try(set_uniform(log, program->name, "frame1", &program->frame1, 0));
try(set_uniform(log, program->name, "frame2", &program->frame2, 1));
finally:
status = free_shaders(log, &shaders, status);
return status;
}
/**
* blur a frame (roughly uniform over 5 pixels radius).
*/
int build_blur(lulog *log, blur *program) {
int status = LU_OK;
luary_uint32 *shaders = NULL;
try(compile_shader_from_file(log, GL_VERTEX_SHADER, "direct_texture.vert", &shaders));
try(compile_shader_from_file(log, GL_FRAGMENT_SHADER, "blur.frag", &shaders));
try(link_program(log, shaders, &program->name));
try(set_uniform(log, program->name, "frame", &program->frame, 0));
try(set_uniform(log, program->name, "horizontal", &program->horizontal, 1));
finally:
status = free_shaders(log, &shaders, status);
return status;
}
int draw_triangle_edges(lulog *log, model *model, programs *programs) {
int status = LU_OK;
gl_try(glBindVertexArray(model->vao));
// gl_try(glPolygonMode(GL_FRONT_AND_BACK, GL_LINE));
gl_try(glUseProgram(programs->triangle_edges));
gl_try(glMultiDrawArrays(GL_TRIANGLE_STRIP, model->offsets->i, model->counts->i, model->counts->mem.used));
// gl_try(glPolygonMode(GL_FRONT_AND_BACK, GL_FILL));
finally:
GL_CLEAN(glBindVertexArray(0))
GL_CLEAN(glUseProgram(0))
return status;
}
void Engine::init_scene() {
Node* scene = nodes["scene"] = new Node(NULL);
// shaders //
// "simple_shader"
shaders["simple_shader"] = make_shader("shaders/p_v.glsl",
"shaders/unicolor_f.glsl");
// "light1"
{
Shader* shader = shaders["light1"] =
make_shader("shaders/pn_v.glsl", "shaders/light1_f.glsl");
// TODO put uniforms in "material"-class or something?
set_uniform(shader, "mycolor", glm::vec4(1.f));
set_uniform(shader, "ambient_intensity", glm::vec4(.1f,.1f,.1f,1.f));
set_uniform(shader, "diffuse_color", glm::vec4(.5f,.5f,.5f,1.f));
set_uniform(shader, "specular_color", glm::vec4(1.f,1.f,1.f,1.f));
set_uniform(shader, "atten_k", .04f);
set_uniform(shader, "gauss_k", .1f);
}
// objects //
// grid
{
Shader* shader = shaders["simple_shader"];
Node* node = nodes["grid"] = new Node(scene);
int no = 5;
glm::vec3 scale = glm::vec3(20.f);
VAO* vao = create_grid(no, scale);
std::vector<Uniform*> material;
glm::vec4 white = glm::vec4(1.f);
StoredUniform<glm::vec4>* mycolor =
new StoredUniform<glm::vec4>(shader, "mycolor", white);
material.push_back(mycolor);
renderables.push_back(
new BasicRenderObject(shader, node, vao, material));
// mem
vaos.push_back(vao);
uniforms.push_back(mycolor);
}
// redcube
{
Shader* shader = shaders["light1"];
Node* node = nodes["redcube"] = new Node(scene);
node->position = glm::vec3(.5f,.5f,-1.7f);
glm::vec3 scale = glm::vec3(.05f);
VAO* vao = create_cube_with_normals(scale);
std::vector<Uniform*> material;
glm::vec4 red = glm::vec4(1.f,0.f,.5f,1.f);
StoredUniform<glm::vec4>* mycolor =
new StoredUniform<glm::vec4>(shader, "mycolor", red);
material.push_back(mycolor);
renderables.push_back(
new LitRenderObject(shader, node, vao, material));
// physics
btCollisionShape* cube_shape = new btBoxShape(from_vec3(scale/2.f));
float mass = 0.f;
redcube_rb = create_rigid_body(mass, node, cube_shape);
physics->add_rigid_body(redcube_rb);
// mem
vaos.push_back(vao);
uniforms.push_back(mycolor);
collision_shapes.push_back(cube_shape);
}
make_litcube("cyancube",
glm::vec4(0.f, 1.f, 1.f, 1.f),
glm::vec3(0.05f));
nodes["cyancube"]->orientation =
glm::angleAxis(glm::radians(45.f),
glm::normalize(glm::vec3(-1.f, 1.f, 1.f)));
make_litcube("yellowcube",
glm::vec4(1.f, 1.f, 0.f, 1.f),
glm::vec3(0.05f));
nodes["yellowcube"]->orientation = nodes["cyancube"]->orientation;
make_litcube("bluecube",
glm::vec4(0.f, 0.f, 1.f, 1.f),
glm::vec3(1.f),
30.f,
glm::vec3(0.f, 1.5f, -5.f));
// lightcube
{
Shader* shader = shaders["simple_shader"];
Node* node = nodes["lightcube"] = new Node(scene);
node->position = glm::vec3(0.f, 1.f, 0.f);
glm::vec3 scale = glm::vec3(.3f,.3f,.3f);
VAO* vao = create_cube(scale);
std::vector<Uniform*> material;
glm::vec4 white = glm::vec4(1.f,1.f,1.f,1.f);
StoredUniform<glm::vec4>* mycolor =
new StoredUniform<glm::vec4>(shader, "mycolor", white);
material.push_back(mycolor);
renderables.push_back(
new BasicRenderObject(shader, node, vao, material));
// sync point light with position
PointLight light0(node, glm::vec4(.7f,.7f,.7f,1.f));
set_uniform(shaders["light1"], "light.position",
glm::vec3(light0.get_position()));
set_uniform(shaders["light1"], "light.intensity",
light0.get_intensity());
// mem
vaos.push_back(vao);
uniforms.push_back(mycolor);
}
// plane
{
Shader* shader = shaders["light1"];
Node* node = nodes["plane"] = new Node(scene);
node->position = glm::vec3(0.f, -.5f, 0.f);
glm::vec3 scale = glm::vec3(20.f, 1.f, 20.f);
VAO* vao = create_cube_with_normals(scale);
std::vector<Uniform*> material;
glm::vec4 goldish = glm::vec4(1.f,1.f,0.f,1.f);
StoredUniform<glm::vec4>* mycolor =
new StoredUniform<glm::vec4>(shader, "mycolor", goldish);
material.push_back(mycolor);
renderables.push_back(
new LitRenderObject(shader, node, vao, material));
// physics
btCollisionShape* shape = new btBoxShape(from_vec3(scale/2.f));
float mass = 0.f;
btRigidBody* rigid_body = create_rigid_body(mass, node, shape);
physics->add_rigid_body(rigid_body);
// mem
uniforms.push_back(mycolor);
vaos.push_back(vao);
collision_shapes.push_back(shape);
}
// bound
{
Shader* shader = shaders["light1"];
Node* node = nodes["bound"] = new Node(scene);
glm::vec3 scale = glm::vec3(20.f);
bool face_inward = true;
VAO* vao = create_cube_with_normals(scale, face_inward);
std::vector<Uniform*> material;
glm::vec4 greenblueish = glm::vec4(0.f,1.f,1.f,1.f);
StoredUniform<glm::vec4>* mycolor =
new StoredUniform<glm::vec4>(shader, "mycolor", greenblueish);
material.push_back(mycolor);
renderables.push_back(
new LitRenderObject(shader, node, vao, material));
// mem
vaos.push_back(vao);
uniforms.push_back(mycolor);
}
// roboarm
{
nodes["roboarm0"] = new Node(scene);
nodes["roboarm1"] = new Node(scene);
nodes["roboarm2"] = new Node(scene);
nodes["roboarm3"] = new Node(scene);
glm::vec3 scale = glm::vec3(0.1f, 0.4f, 0.1f);
nodes["roboarm0"]->position = glm::vec3(0.f, 1.f, -2.f);
//nodes["roboarm0"]->orientation =
// glm::angleAxis(glm::radians(180.f), glm::vec3(1.f, 0.f, 0.f));
nodes["roboarm1"]->position = nodes["roboarm0"]->position +
nodes["roboarm0"]->orientation * glm::vec3(0.f, scale.y, 0.f);
nodes["roboarm1"]->orientation = nodes["roboarm0"]->orientation;
nodes["roboarm2"]->position = nodes["roboarm1"]->position +
nodes["roboarm1"]->orientation * glm::vec3(0.f, scale.y, 0.f);
nodes["roboarm2"]->orientation = nodes["roboarm1"]->orientation;
nodes["roboarm3"]->position = nodes["roboarm2"]->position +
nodes["roboarm2"]->orientation * glm::vec3(0.f, scale.y, 0.f);
nodes["roboarm3"]->orientation = nodes["roboarm2"]->orientation;
// render
{
Shader* shader = shaders["light1"];
glm::vec4 black = glm::vec4(0.f,0.f,0.f,1.f);
StoredUniform<glm::vec4>* mycolor =
new StoredUniform<glm::vec4>(shader, "mycolor", black);
std::vector<Uniform*> material;
material.push_back(mycolor);
// TODO use rounder shapes...
VAO* vao = create_cube_with_normals(scale);
auto make_renderable =
[&shader, &material, &vao] (Node* node) {
return new LitRenderObject(shader, node, vao, material);
};
renderables.insert(renderables.end(),
{
make_renderable(nodes["roboarm0"]),
make_renderable(nodes["roboarm1"]),
make_renderable(nodes["roboarm2"]),
make_renderable(nodes["roboarm3"]),
}
);
// mem
uniforms.push_back(mycolor);
vaos.push_back(vao);
}
btCollisionShape *shape = new btBoxShape(from_vec3(scale/2.f));
float density = 1000.f,
volume = scale.x * scale.y * scale.z,
mass = density * volume;
// mem
collision_shapes.push_back(shape);
btRigidBody *rb0 = create_rigid_body(0.f, nodes["roboarm0"], shape),
*rb1 = create_rigid_body(mass, nodes["roboarm1"], shape),
*rb2 = create_rigid_body(mass, nodes["roboarm2"], shape),
*rb3 = create_rigid_body(mass, nodes["roboarm3"], shape);
rb1->setActivationState(DISABLE_DEACTIVATION);
rb2->setActivationState(DISABLE_DEACTIVATION);
rb3->setActivationState(DISABLE_DEACTIVATION);
physics->add_rigid_body(rb0);
physics->add_rigid_body(rb1);
physics->add_rigid_body(rb2);
physics->add_rigid_body(rb3);
btMatrix3x3 rot;
rot.setIdentity();
btTransform trans_up(rot, btVector3(0.f, scale.y/2, 0.f)),
trans_down(rot, btVector3(0.f, -scale.y/2, 0.f));
rc1 = new btHingeConstraint(*rb0, *rb1,
trans_up, trans_down);
rc2 = new btHingeConstraint(*rb1, *rb2,
trans_up, trans_down);
rc3 = new btHingeConstraint(*rb2, *rb3,
trans_up, trans_down);
float pi = glm::pi<float>();
rc1->setLimit(-pi/2, pi/2);
rc2->setLimit(-pi/2, pi/2);
rc3->setLimit(-pi/2, pi/2);
bool intercollision = false;
physics->add_constraint(rc1, intercollision);
physics->add_constraint(rc2, intercollision);
physics->add_constraint(rc3, intercollision);
roboarm0 = new KinematicChain(nullptr, rb0, nullptr);
roboarm1 = new KinematicChain(roboarm0, rb1, rc1);
roboarm2 = new KinematicChain(roboarm1, rb2, rc2);
roboarm3 = new KinematicChain(roboarm2, rb3, rc3);
}
}
void Program::set_uniform(const std::string &name, glm::vec4 value) {
glUniform4fv(set_uniform(name), 1, &value[0]);
}
void GBufferPass::rendering(SerializedScene const& scene,
SceneGraph const& graph,
RenderContext const& ctx,
CameraMode eye,
Camera const& camera,
FrameBufferObject* target,
View const& view) {
// pipeline_->camera_block_left_->update(ctx.render_context, pipeline_->get_current_scene(CameraMode::LEFT).frustum);
// pipeline_->camera_block_right_->update(ctx.render_context, pipeline_->get_current_scene(CameraMode::RIGHT).frustum);
if (!depth_stencil_state_ || !bfc_rasterizer_state_ ||
!no_bfc_rasterizer_state_) {
initialize_state_objects(ctx);
}
ctx.render_context->set_rasterizer_state(
pipeline_->config.enable_backface_culling() ? bfc_rasterizer_state_
: no_bfc_rasterizer_state_);
ctx.render_context->set_depth_stencil_state(depth_stencil_state_);
// make sure all ubershaders are available
update_ubershader_from_scene(ctx, scene, graph);
// draw all drawable geometries
for (auto const& type_ressource_pair : scene.geometrynodes_) {
auto const& type = type_ressource_pair.first;
auto const& ressource_container = type_ressource_pair.second;
auto ubershader = ubershaders_.at(type);
// set frame-consistent per-ubershader uniforms
ubershader->set_left_resolution(pipeline_->config.get_left_resolution());
ubershader->set_right_resolution(pipeline_->config.get_right_resolution());
ubershader->set_material_uniforms(
scene.materials_, ShadingModel::GBUFFER_VERTEX_STAGE, ctx);
ubershader->set_material_uniforms(
scene.materials_, ShadingModel::GBUFFER_FRAGMENT_STAGE, ctx);
ubershader->set_uniform(ctx,
scene.enable_global_clipping_plane,
"gua_enable_global_clipping_plane");
ubershader->set_uniform(
ctx, scene.global_clipping_plane, "gua_global_clipping_plane");
ubershader->set_uniform(ctx, false, "gua_render_shadow_map");
for (auto const& program : ubershader->programs()) {
Pass::bind_inputs(*program, eye, ctx);
program->set_uniform(ctx, static_cast<int>(eye), "gua_eye");
if (eye == CameraMode::LEFT || eye == CameraMode::CENTER) {
ctx.render_context->bind_uniform_buffer(pipeline_->camera_block_left_->block().block_buffer(), 0);
} else {
ctx.render_context->bind_uniform_buffer(pipeline_->camera_block_right_->block().block_buffer(), 0);
}
}
// 1. call preframe callback if available for type
if (ubershader->get_stage_mask() & GeometryUberShader::PRE_FRAME_STAGE) {
ubershader->preframe(ctx);
}
// 2. iterate all drawables of current type and call predraw of current
// ubershader
if (ubershader->get_stage_mask() & GeometryUberShader::PRE_DRAW_STAGE) {
for (auto const& node : ressource_container) {
auto const& ressource =
GeometryDatabase::instance()->lookup(node->get_filename());
auto const& material =
MaterialDatabase::instance()->lookup(node->get_material());
if (ressource && material) {
ubershader->predraw(ctx,
node->get_filename(),
node->get_material(),
node->get_cached_world_transform(),
scm::math::transpose(scm::math::inverse(
node->get_cached_world_transform())),
scene.frustum,
view);
} else {
if (!material) {
Logger::LOG_WARNING
<< "GBufferPass::rendering() Cannot find material. " << material
<< std::endl;
}
if (!ressource) {
Logger::LOG_WARNING
<< "GBufferPass::rendering() Cannot find geometry ressource."
<< ressource << std::endl;
}
}
}
}
// 3. iterate all drawables of current type and call draw of current
// ubershader
if (ubershader->get_stage_mask() & GeometryUberShader::DRAW_STAGE) {
for (auto const& node : ressource_container) {
auto const& ressource =
GeometryDatabase::instance()->lookup(node->get_filename());
auto const& material =
MaterialDatabase::instance()->lookup(node->get_material());
if (ressource && material) {
ubershader->draw(ctx,
node->get_filename(),
node->get_material(),
node->get_cached_world_transform(),
scm::math::transpose(scm::math::inverse(
node->get_cached_world_transform())),
scene.frustum,
view);
} else {
if (!material) {
Logger::LOG_WARNING
<< "GBufferPass::rendering() Cannot find material. " << material
<< std::endl;
}
if (!ressource) {
Logger::LOG_WARNING
<< "GBufferPass::rendering() Cannot find geometry ressource."
<< ressource << std::endl;
}
}
}
}
// 4. iterate all drawables of current type and call postdraw of current
// ubershader
if (ubershader->get_stage_mask() & GeometryUberShader::POST_DRAW_STAGE) {
for (auto const& node : ressource_container) {
auto const& ressource =
GeometryDatabase::instance()->lookup(node->get_filename());
auto const& material =
MaterialDatabase::instance()->lookup(node->get_material());
if (ressource && material) {
ubershader->postdraw(ctx,
node->get_filename(),
node->get_material(),
node->get_cached_world_transform(),
scm::math::transpose(scm::math::inverse(
node->get_cached_world_transform())),
scene.frustum,
view);
} else {
if (!material) {
Logger::LOG_WARNING
<< "GBufferPass::rendering() Cannot find material. " << material
<< std::endl;
}
if (!ressource) {
Logger::LOG_WARNING
<< "GBufferPass::rendering() Cannot find geometry ressource."
<< ressource << std::endl;
}
}
}
}
// 5. call postframe callback if available for type
if (ubershader->get_stage_mask() & GeometryUberShader::POST_FRAME_STAGE) {
ubershader->postframe(ctx);
}
}
///////////////////////////////////////////////////////////////
// draw debug and helper information
///////////////////////////////////////////////////////////////
display_quads(ctx, scene, eye, view);
ctx.render_context->set_rasterizer_state(bbox_rasterizer_state_);
display_bboxes(ctx, scene, view);
display_rays(ctx, scene, view);
ctx.render_context->reset_state_objects();
}
void Program::set_uniform(const std::string &name, glm::mat4 value) {
glUniformMatrix4fv(set_uniform(name), 1, GL_FALSE, &value[0][0]);
}
int main(int argc, char** argv) {
gua::init(argc, argv);
//create simple untextured material shader
auto lod_keep_input_desc = std::make_shared<gua::MaterialShaderDescription>("./data/materials/PLOD_use_input_color.gmd");
auto lod_keep_color_shader(std::make_shared<gua::MaterialShader>("PLOD_pass_input_color", lod_keep_input_desc));
gua::MaterialShaderDatabase::instance()->add(lod_keep_color_shader);
//create material for pointcloud
auto lod_rough = lod_keep_color_shader->make_new_material();
lod_rough->set_uniform("metalness", 0.2f);
lod_rough->set_uniform("roughness", 0.4f);
lod_rough->set_uniform("emissivity", 0.8f);
//configure lod backend
gua::LodLoader lod_loader;
lod_loader.set_out_of_core_budget_in_mb(512);
lod_loader.set_render_budget_in_mb(512);
lod_loader.set_upload_budget_in_mb(20);
//load a sample pointcloud
auto plod_node = lod_loader.load_lod_pointcloud(
"pointcloud",
"/opt/3d_models/lamure/plod/pig_pr.bvh",
lod_rough,
gua::LodLoader::NORMALIZE_POSITION | gua::LodLoader::NORMALIZE_SCALE | gua::LodLoader::MAKE_PICKABLE);
//load a sample mesh-based lod model
auto mlod_node = lod_loader.load_lod_trimesh(
//"tri_mesh",
"/opt/3d_models/lamure/mlod/xyzrgb_dragon_7219k.bvh",
//plod_rough,
gua::LodLoader::NORMALIZE_POSITION | gua::LodLoader::NORMALIZE_SCALE/* | gua::LodLoader::MAKE_PICKABLE*/
);
mlod_node->set_error_threshold(0.25);
//setup scenegraph
gua::SceneGraph graph("main_scenegraph");
auto scene_transform = graph.add_node<gua::node::TransformNode>("/", "transform");
auto mlod_transform = graph.add_node<gua::node::TransformNode>("/transform", "mlod_transform");
auto plod_transform = graph.add_node<gua::node::TransformNode>("/transform", "plod_transform");
graph.add_node("/transform/mlod_transform", mlod_node);
graph.add_node("/transform/plod_transform", plod_node);
mlod_transform->translate(-0.4, 0.0, 0.0);
plod_transform->rotate(180.0, 0.0, 1.0, 0.0);
plod_transform->translate(0.3, 0.08, 0.0);
//create a lightsource
auto light_transform = graph.add_node<gua::node::TransformNode>("/transform", "light_transform");
auto light = graph.add_node<gua::node::LightNode>("/transform/light_transform", "light");
light->data.set_type(gua::node::LightNode::Type::POINT);
light->data.set_enable_shadows(false);
light->data.set_shadow_map_size(4096);
light->data.brightness = 5.0f;
light->translate(0.f, 0.2f, 0.f);
light->scale(4.f);
light->translate(0.f, 0.f, 1.f);
auto screen = graph.add_node<gua::node::ScreenNode>("/", "screen");
screen->data.set_size(gua::math::vec2(1.92f, 1.08f));
screen->translate(0, 0, 1.0);
//add mouse interaction
scm::gl::trackball_manipulator trackball;
trackball.transform_matrix()*scm::math::make_translation(0.01f, 0.002f, 0.2f);
trackball.dolly(0.2f);
float dolly_sens = 1.5f;
gua::math::vec2 trackball_init_pos(0.f);
gua::math::vec2 last_mouse_pos(0.f);
int button_state = -1;
//setup rendering pipeline and window
auto resolution = gua::math::vec2ui(1920, 1080);
auto camera = graph.add_node<gua::node::CameraNode>("/screen", "cam");
camera->translate(0.0f, 0, 2.5f);
camera->config.set_resolution(resolution);
//use close near plane to allow inspection of details
//camera->config.set_near_clip(0.01f);
//camera->config.set_far_clip(200.0f);
camera->config.set_screen_path("/screen");
camera->config.set_scene_graph_name("main_scenegraph");
camera->config.set_output_window_name("main_window");
camera->config.set_enable_stereo(true);
auto PLod_Pass = std::make_shared<gua::PLodPassDescription>();
auto pipe = std::make_shared<gua::PipelineDescription>();
pipe->add_pass(std::make_shared<gua::MLodPassDescription>());
pipe->add_pass(PLod_Pass);
pipe->add_pass(std::make_shared<gua::BBoxPassDescription>());
pipe->add_pass(std::make_shared<gua::LightVisibilityPassDescription>());
pipe->add_pass(std::make_shared<gua::ResolvePassDescription>());
pipe->add_pass(std::make_shared<gua::DebugViewPassDescription>());
camera->set_pipeline_description(pipe);
pipe->get_resolve_pass()->tone_mapping_exposure(1.f);
pipe->get_resolve_pass()->tone_mapping_method(gua::ResolvePassDescription::ToneMappingMethod::UNCHARTED);
pipe->get_resolve_pass()->background_mode(gua::ResolvePassDescription::BackgroundMode::SKYMAP_TEXTURE);
pipe->get_resolve_pass()->background_texture("data/textures/envlightmap.jpg");
//init window and window behaviour
auto window = std::make_shared<gua::GlfwWindow>();
gua::WindowDatabase::instance()->add("main_window", window);
window->config.set_enable_vsync(false);
window->config.set_size(resolution);
window->config.set_resolution(resolution);
window->config.set_stereo_mode(gua::StereoMode::MONO);
window->on_resize.connect([&](gua::math::vec2ui const& new_size) {
window->config.set_resolution(new_size);
camera->config.set_resolution(new_size);
screen->data.set_size(gua::math::vec2(0.001 * new_size.x, 0.001 * new_size.y));
});
//trackball controls
bool drag_mode = false;
window->on_move_cursor.connect([&](gua::math::vec2 const& pos) {
float nx = 2.f * float(pos.x - (resolution.x/2))/float(resolution.x);
float ny = -2.f * float(resolution.y - pos.y - (resolution.y/2))/float(resolution.y);
if (button_state != -1) {
if (drag_mode) {
auto ssize = screen->data.get_size();
gua::math::vec3 trans = gua::math::vec3(ssize.x *(nx - last_mouse_pos.x), ssize.y * (ny - last_mouse_pos.y), 0.f);
auto object_trans = scm::math::inverse(screen->get_world_transform()) * mlod_transform->get_world_transform();
mlod_transform->set_world_transform(screen->get_world_transform() * scm::math::make_translation(trans) * object_trans);
}
else {
if (button_state == 0) { // left
trackball.rotation(trackball_init_pos.x, trackball_init_pos.y, nx, ny);
}
if (button_state == 1) { // right
trackball.dolly(dolly_sens*0.5f * (ny - trackball_init_pos.y));
}
if (button_state == 2) { // middle
float f = dolly_sens < 1.0f ? 0.02f : 0.3f;
trackball.translation(f*(nx - trackball_init_pos.x), f*(ny - trackball_init_pos.y));
}
trackball_init_pos.x = nx;
trackball_init_pos.y = ny;
}
}
last_mouse_pos.x = nx;
last_mouse_pos.y = ny;
});
window->on_button_press.connect([&](int mousebutton, int action, int mods) {
if (action == 1) {
drag_mode = mods == 1;
trackball_init_pos = last_mouse_pos;
button_state = mousebutton;
} else
button_state = -1;
});
window->on_key_press.connect(std::bind([&](gua::PipelineDescription& pipe, gua::SceneGraph& graph, int key, int scancode, int action, int mods) {
if (action == 0) return;
switch (std::tolower(key)) {
case '1':
PLod_Pass->mode(gua::PLodPassDescription::SurfelRenderMode::HQ_TWO_PASS);
PLod_Pass->touch();
break;
case '2':
PLod_Pass->mode(gua::PLodPassDescription::SurfelRenderMode::HQ_LINKED_LIST);
PLod_Pass->touch();
break;
default:
break;
}
},
std::ref(*(camera->get_pipeline_description())),
std::ref(graph),
std::placeholders::_1,
std::placeholders::_2,
std::placeholders::_3,
std::placeholders::_4));
window->open();
gua::Renderer renderer;
//application loop
gua::events::MainLoop loop;
gua::events::Ticker ticker(loop, 1.0 / 500.0);
ticker.on_tick.connect([&]() {
screen->set_transform(scm::math::inverse(gua::math::mat4(trackball.transform_matrix())));
light->rotate(0.1, 0.f, 1.f, 0.f);
window->process_events();
if (window->should_close()) {
renderer.stop();
window->close();
loop.stop();
}
else {
renderer.queue_draw({ &graph });
std::cout << "FPS: " << window->get_rendering_fps() << " Frametime: " << 1000.f / window->get_rendering_fps() << std::endl;
}
});
loop.start();
return 0;
}
int main(int argc, char** argv)
{
// initialize guacamole
gua::init(argc, argv);
// setup scene
gua::SceneGraph graph("main_scenegraph");
gua::math::vec4 iron(0.560, 0.570, 0.580, 1);
gua::math::vec4 silver(0.972, 0.960, 0.915, 1);
gua::math::vec4 aluminium(0.913, 0.921, 0.925, 1);
gua::math::vec4 gold(1.000, 0.766, 0.336, 1);
gua::math::vec4 copper(0.955, 0.637, 0.538, 1);
gua::math::vec4 chromium(0.550, 0.556, 0.554, 1);
gua::math::vec4 nickel(0.660, 0.609, 0.526, 1);
gua::math::vec4 titanium(0.542, 0.497, 0.449, 1);
gua::math::vec4 cobalt(0.662, 0.655, 0.634, 1);
gua::math::vec4 platinum(0.672, 0.637, 0.585, 1);
auto pbrMat(gua::MaterialShaderDatabase::instance()->lookup("gua_default_material")->make_new_material());
// pbrMat.set_uniform("Color", chromium);
// pbrMat.set_uniform("Roughness", 0.2f);
// pbrMat.set_uniform("Metalness", 1.0f);
std::string directory("/opt/3d_models/Cerberus_by_Andrew_Maximov/Textures/");
pbrMat->set_uniform("ColorMap", directory + "Cerberus_A.tga");
pbrMat->set_uniform("MetalnessMap", directory + "Cerberus_M.tga");
pbrMat->set_uniform("RoughnessMap", directory + "Cerberus_R.tga");
pbrMat->set_uniform("NormalMap", directory + "Cerberus_N.negated_green.tga");
gua::TriMeshLoader loader;
auto transform = graph.add_node<gua::node::TransformNode>("/", "transform");
auto cerberus(loader.create_geometry_from_file(
"cerberus", "/opt/3d_models/Cerberus_by_Andrew_Maximov/Cerberus_LP.3ds", pbrMat, gua::TriMeshLoader::NORMALIZE_POSITION | gua::TriMeshLoader::NORMALIZE_SCALE));
graph.add_node("/transform", cerberus);
cerberus->set_draw_bounding_box(true);
cerberus->rotate(90, 0.f, 1.f, 0.f);
cerberus->rotate(90, 0.f, 0.f, 1.f);
auto pointLight = graph.add_node<gua::node::LightNode>("/", "pointLight");
pointLight->data.set_type(gua::node::LightNode::Type::POINT);
pointLight->data.color = gua::utils::Color3f(1.0f, 1.0f, 1.0f);
pointLight->data.brightness = 150.0f; // lm
pointLight->scale(9.f);
pointLight->translate(-2.f, 3.f, 5.f);
auto screen = graph.add_node<gua::node::ScreenNode>("/", "screen");
screen->data.set_size(gua::math::vec2(1.92f, 1.08f));
screen->translate(0, 0, 1.0);
// add mouse interaction
gua::utils::Trackball trackball(0.01, 0.002, 0.2);
// setup rendering pipeline and window
// auto resolution = gua::math::vec2ui(1920, 1080);
auto resolution = gua::math::vec2ui(2560, 1440);
std::string skymaps_dir("/opt/guacamole/resources/skymaps/");
for(auto const& file : {std::string(directory + "Cerberus_A.tga"),
std::string(directory + "Cerberus_M.tga"),
std::string(directory + "Cerberus_R.tga"),
std::string(directory + "Cerberus_N.negated_green.tga"),
std::string(skymaps_dir + "skymap.jpg")})
{
gua::TextureDatabase::instance()->load(file);
}
auto tiledPipe(std::make_shared<gua::PipelineDescription>());
tiledPipe->add_pass(std::make_shared<gua::TriMeshPassDescription>());
tiledPipe->add_pass(std::make_shared<gua::LightVisibilityPassDescription>());
tiledPipe->add_pass(std::make_shared<gua::ResolvePassDescription>());
auto camera = graph.add_node<gua::node::CameraNode>("/screen", "cam");
camera->translate(0, 0, 2.0);
camera->config.set_resolution(resolution);
camera->config.set_screen_path("/screen");
camera->config.set_scene_graph_name("main_scenegraph");
camera->config.set_output_window_name("main_window");
camera->config.set_enable_stereo(false);
camera->set_pipeline_description(tiledPipe);
auto window = std::make_shared<gua::GlfwWindow>();
gua::WindowDatabase::instance()->add("main_window", window);
window->config.set_enable_vsync(false);
window->config.set_size(resolution);
window->config.set_resolution(resolution);
window->config.set_stereo_mode(gua::StereoMode::MONO);
window->on_resize.connect([&](gua::math::vec2ui const& new_size) {
window->config.set_resolution(new_size);
camera->config.set_resolution(new_size);
screen->data.set_size(gua::math::vec2(0.001 * new_size.x, 0.001 * new_size.y));
});
window->on_move_cursor.connect([&](gua::math::vec2 const& pos) { trackball.motion(pos.x, pos.y); });
window->on_button_press.connect(std::bind(mouse_button, std::ref(trackball), std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
window->open();
gua::Renderer renderer;
// application loop
gua::events::MainLoop loop;
gua::events::Ticker ticker(loop, 1.0 / 500.0);
size_t ctr{};
ticker.on_tick.connect([&]() {
// apply trackball matrix to object
gua::math::mat4 modelmatrix = scm::math::make_translation(gua::math::float_t(trackball.shiftx()), gua::math::float_t(trackball.shifty()), gua::math::float_t(trackball.distance())) *
gua::math::mat4(trackball.rotation());
transform->set_transform(modelmatrix);
if(ctr++ % 150 == 0)
gua::Logger::LOG_WARNING << "Frame time: " << 1000.f / window->get_rendering_fps() << " ms, fps: " << window->get_rendering_fps() << std::endl;
window->process_events();
if(window->should_close())
{
renderer.stop();
window->close();
loop.stop();
}
else
{
renderer.queue_draw({&graph});
}
});
loop.start();
return 0;
}
void Video3DUberShader::draw(RenderContext const& ctx,
std::string const& ksfile_name,
std::string const& material_name,
scm::math::mat4 const& model_matrix,
scm::math::mat4 const& normal_matrix,
Frustum const& /*frustum*/,
View const& view) const
{ if (!GeometryDatabase::instance()->is_supported(ksfile_name) ||
!MaterialDatabase::instance()->is_supported(material_name)) {
gua::Logger::LOG_WARNING << "Video3DUberShader::draw(): No such video or material." << ksfile_name << ", " << material_name << std::endl;
return;
}
auto video3d_ressource = std::static_pointer_cast<Video3DRessource>(GeometryDatabase::instance()->lookup(ksfile_name));
auto material = MaterialDatabase::instance()->lookup(material_name);
if (!video3d_ressource || !material) {
gua::Logger::LOG_WARNING << "Video3DUberShader::draw(): Invalid video or material." << std::endl;
return;
}
// update stream data
video3d_ressource->update_buffers(ctx);
// make sure ressources are on the GPU
upload_to(ctx);
{
// single texture only
scm::gl::context_all_guard guard(ctx.render_context);
ctx.render_context->set_rasterizer_state(no_bfc_rasterizer_state_);
ctx.render_context->set_depth_stencil_state(depth_stencil_state_warp_pass_);
// set uniforms
ctx.render_context->bind_texture(video3d_ressource->depth_array(ctx), nearest_sampler_state_, 0);
get_program(warp_pass)->get_program(ctx)->uniform_sampler("depth_video3d_texture", 0);
get_program(warp_pass)->set_uniform(ctx, normal_matrix, "gua_normal_matrix");
get_program(warp_pass)->set_uniform(ctx, model_matrix, "gua_model_matrix");
get_program(warp_pass)->set_uniform(ctx, int(1), "bbxclip");
auto bbox(video3d_ressource->get_bounding_box());
get_program(warp_pass)->set_uniform(ctx, bbox.min, "bbx_min");
get_program(warp_pass)->set_uniform(ctx, bbox.max, "bbx_max");
// pre passes
for (unsigned layer = 0; layer != video3d_ressource->number_of_cameras(); ++layer)
{
// configure fbo
warp_result_fbo_->clear_attachments();
warp_result_fbo_->attach_depth_stencil_buffer(warp_depth_result_, 0, layer);
warp_result_fbo_->attach_color_buffer(0, warp_color_result_, 0, layer);
// bind and clear fbo
ctx.render_context->set_frame_buffer(warp_result_fbo_);
ctx.render_context->clear_depth_stencil_buffer(warp_result_fbo_);
ctx.render_context->clear_color_buffer(warp_result_fbo_, 0, scm::math::vec4f(0.0f, 0.0f, 0.0f, 0.0f));
ctx.render_context->set_viewport(scm::gl::viewport(scm::math::vec2ui(0,0), warp_color_result_->dimensions()));
// set uniforms
get_program(warp_pass)->set_uniform(ctx, video3d_ressource->calibration_file(layer).getTexSizeInvD(), "tex_size_inv");
get_program(warp_pass)->set_uniform(ctx, int(layer), "layer");
if (material && video3d_ressource)
{
get_program(warp_pass)->set_uniform(ctx, video3d_ressource->calibration_file(layer).getImageDToEyeD(), "image_d_to_eye_d");
get_program(warp_pass)->set_uniform(ctx, video3d_ressource->calibration_file(layer).getEyeDToWorld(), "eye_d_to_world");
get_program(warp_pass)->set_uniform(ctx, video3d_ressource->calibration_file(layer).getEyeDToEyeRGB(), "eye_d_to_eye_rgb");
get_program(warp_pass)->set_uniform(ctx, video3d_ressource->calibration_file(layer).getEyeRGBToImageRGB(), "eye_rgb_to_image_rgb");
ctx.render_context->bind_texture(video3d_ressource->cv_xyz(ctx,layer), linear_sampler_state_, 1);
get_program(warp_pass)->get_program(ctx)->uniform_sampler("cv_xyz", 1);
ctx.render_context->bind_texture(video3d_ressource->cv_uv(ctx,layer), linear_sampler_state_, 2);
get_program(warp_pass)->get_program(ctx)->uniform_sampler("cv_uv", 2);
get_program(warp_pass)->set_uniform(ctx, video3d_ressource->calibration_file(layer).cv_min_d, "cv_min_d");
get_program(warp_pass)->set_uniform(ctx, video3d_ressource->calibration_file(layer).cv_max_d, "cv_max_d");
get_program(warp_pass)->use(ctx);
{
video3d_ressource->draw(ctx);
}
get_program(warp_pass)->unuse(ctx);
}
ctx.render_context->reset_framebuffer();
}
}
{
// single texture only
scm::gl::context_all_guard guard(ctx.render_context);
ctx.render_context->set_depth_stencil_state(depth_stencil_state_warp_pass_);
// second pass
get_program(blend_pass)->use(ctx);
{
if (material && video3d_ressource)
{
set_uniform(ctx, material->get_id(), "gua_material_id");
set_uniform(ctx, normal_matrix, "gua_normal_matrix");
set_uniform(ctx, model_matrix, "gua_model_matrix");
// needs to be multiplied with scene scaling
set_uniform(ctx, 0.075f, "epsilon");
set_uniform(ctx, int(video3d_ressource->number_of_cameras()), "numlayers");
get_program(blend_pass)->set_uniform(ctx, int(material_name == default_video_material_name()), "using_default_video_material");
get_program(blend_pass)->set_uniform(ctx, int(video3d_ressource->do_overwrite_normal()), "overwrite_normal");
get_program(blend_pass)->set_uniform(ctx, video3d_ressource->get_overwrite_normal(), "o_normal");
ctx.render_context->bind_texture(warp_color_result_, nearest_sampler_state_, 0);
get_program(blend_pass)->get_program(ctx)->uniform_sampler("quality_texture", 0);
ctx.render_context->bind_texture(warp_depth_result_, nearest_sampler_state_, 1);
get_program(blend_pass)->get_program(ctx)->uniform_sampler("depth_texture", 1);
ctx.render_context->bind_texture(video3d_ressource->color_array(ctx), linear_sampler_state_, 2);
get_program(blend_pass)->get_program(ctx)->uniform_sampler("video_color_texture", 2);
fullscreen_quad_->draw(ctx.render_context);
}
}
get_program(blend_pass)->unuse(ctx);
}
}
int main(int argc, char** argv) {
// initialize guacamole
gua::init(argc, argv);
auto load_mat = [](std::string const& file){
gua::MaterialShaderDescription desc;
desc.load_from_file(file);
auto shader(std::make_shared<gua::MaterialShader>(file, std::make_shared<gua::MaterialShaderDescription>(desc)));
gua::MaterialShaderDatabase::instance()->add(shader);
return shader->make_new_material();
};
// setup scene
gua::SceneGraph graph("main_scenegraph");
gua::TriMeshLoader loader;
auto transform = graph.add_node<gua::node::TransformNode>("/", "transform");
// load material and create monkey geometry
auto projective_material(load_mat("data/materials/Projective_Texture_Material.gmd"));
projective_material->set_uniform("projective_texture", std::string("data/textures/smiley.jpg"));
auto monkey(loader.create_geometry_from_file("monkey", "data/objects/monkey.obj", projective_material, gua::TriMeshLoader::NORMALIZE_POSITION | gua::TriMeshLoader::NORMALIZE_SCALE));
monkey->scale(3);
monkey->translate(0.0, 0.0, -1.0);
graph.add_node("/transform", monkey);
auto light2 = graph.add_node<gua::node::LightNode>("/", "light2");
light2->data.set_type(gua::node::LightNode::Type::POINT);
light2->data.brightness = 150.0f;
light2->scale(12.f);
light2->translate(-3.f, 5.f, 5.f);
auto screen = graph.add_node<gua::node::ScreenNode>("/", "screen");
screen->data.set_size(gua::math::vec2(1.92f, 1.08f));
screen->translate(0, 0, 1.0);
// add mouse interaction
gua::utils::Trackball trackball(0.01, 0.002, 0.2);
// setup rendering pipeline and window
auto resolution = gua::math::vec2ui(1920, 1080);
auto camera = graph.add_node<gua::node::CameraNode>("/screen", "cam");
camera->translate(0, 0, 2.0);
camera->config.set_resolution(resolution);
camera->config.set_screen_path("/screen");
camera->config.set_scene_graph_name("main_scenegraph");
camera->config.set_output_window_name("main_window");
camera->config.set_enable_stereo(false);
camera->get_pipeline_description()->add_pass(std::make_shared<gua::DebugViewPassDescription>());
// projector transform node, screen and transform node
auto projector_transform = graph.add_node<gua::node::TransformNode>("/", "projector_transform");
projector_transform->translate(0.7, 0.0, 0.7);
projector_transform->rotate(45.0, 0.0, 1.0, 0.0);
graph.add_node("/", projector_transform);
auto projector_screen = graph.add_node<gua::node::ScreenNode>("/projector_transform", "projector_screen");
projector_screen->data.set_size(gua::math::vec2(0.5f, 0.5f));
projector_screen->translate(0.0, 0.0, -1.0);
graph.add_node("/projector_transform", projector_screen);
auto projector_geometry(loader.create_geometry_from_file("projector_geometry", "data/objects/projector.obj", gua::TriMeshLoader::NORMALIZE_POSITION | gua::TriMeshLoader::LOAD_MATERIALS));
projector_geometry->scale(0.1);
graph.add_node("/projector_transform", projector_geometry);
auto window = std::make_shared<gua::GlfwWindow>();
gua::WindowDatabase::instance()->add("main_window", window);
window->config.set_enable_vsync(false);
window->config.set_size(resolution);
window->config.set_resolution(resolution);
window->config.set_stereo_mode(gua::StereoMode::MONO);
window->on_resize.connect([&](gua::math::vec2ui const& new_size) {
window->config.set_resolution(new_size);
camera->config.set_resolution(new_size);
screen->data.set_size(gua::math::vec2(0.001 * new_size.x, 0.001 * new_size.y));
});
window->on_move_cursor.connect([&](gua::math::vec2 const& pos) {
trackball.motion(pos.x, pos.y);
});
window->on_button_press.connect(std::bind(mouse_button, std::ref(trackball), std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
window->open();
gua::Renderer renderer;
// application loop
gua::events::MainLoop loop;
gua::events::Ticker ticker(loop, 1.0/500.0);
ticker.on_tick.connect([&]() {
// apply trackball matrix to object
gua::math::mat4 modelmatrix = scm::math::make_translation(gua::math::float_t(trackball.shiftx()),
gua::math::float_t(trackball.shifty()),
gua::math::float_t(trackball.distance())) * gua::math::mat4(trackball.rotation());
projector_transform->set_transform(modelmatrix);
// use the guacamole frustum to calculate a view mat and projection mat for the projection
auto projection_frustum = gua::Frustum::perspective(projector_transform->get_world_transform(),
projector_screen->get_scaled_world_transform(),
0.1f, 1000.0f);
auto projection_mat = projection_frustum.get_projection();
auto view_mat = projection_frustum.get_view();
// set these matrices as uniforms for the projection material
projective_material->set_uniform("projective_texture_matrix", gua::math::mat4f(projection_mat * view_mat));
projective_material->set_uniform("view_texture_matrix", gua::math::mat4f(view_mat));
window->process_events();
if (window->should_close()) {
renderer.stop();
window->close();
loop.stop();
} else {
renderer.queue_draw({&graph});
}
});
loop.start();
return 0;
}