void load( IECore::Object::LoadContextPtr context )
{
unsigned int v = g_ioVersion;
ConstIndexedIOPtr container = context->container( staticTypeName(), v );
ConstIndexedIOPtr shaders = container->subdirectory( "shaders" );
IndexedIO::EntryIDList handles;
shaders->entryIds( handles, IndexedIO::Directory );
for( const auto &handle : handles )
{
ShaderPtr shader = context->load<Shader>( shaders.get(), handle );
setShader( handle, shader.get() );
}
ConstIndexedIOPtr connections = container->subdirectory( "connections" );
IndexedIO::EntryIDList connectionIndices;
for( const auto &connectionIndex : connectionIndices )
{
InternedString c[4];
InternedString *cp = c;
connections->read( connectionIndex, cp, 4 );
addConnection(
Connection( Parameter( cp[0], cp[1] ), Parameter( cp[2], cp[3] ) )
);
}
InternedString o[2];
InternedString *op = o;
container->read( "output", op, 2 );
m_output = Parameter( op[0], op[1] );
}
bool GLProgram::removeShader(ShaderPtr shader)
{
if (!m_shaders.contains(shader)) return false;
disconnect(shader.get(), SIGNAL(changed(ShaderPtr)), this, SIGNAL(shaderChanged(ShaderPtr)));
m_shaders.remove(shader);
if (m_prog) glRun(glDetachShader(m_prog, shader->id()));
shader->setProgram(ProgramPtr());
m_compiled = false;
m_relink = true;
emit changed();
return true;
}
void GLProgram::addShader(ShaderPtr shader)
{
if (!shader->program())
shader->setProgram(shared_from_this());
assert(shader->program() == shared_from_this());
assert(!m_shaders.contains(shader));
m_shaders << shader;
connect(shader.get(), SIGNAL(changed(ShaderPtr)), this, SIGNAL(shaderChanged(ShaderPtr)));
emit changed();
}
void DemoSceneManager::drawModel2(const std::string &name, GLenum mode)
{
Model::GroupMap &groups = getModel(name)->getGroups();
for (auto i = groups.begin(); i != groups.end(); ++i)
{
Geometry &geometry = i->second;
MaterialPtr material = geometry.getMaterial();
ShaderPtr shader = material->getShader();
if (shader.get())
{
vmml::frustum<float> _projectionMatrix(-1.0f,1.0f,-1.0f,1.0f,0.2f,100.0f);
// vmml::frustum<float> _projectionMatrix(vmml::frustum<float>::DEFAULT);
_projectionMatrix.set_perspective(0.0f, _projectionMatrix.get_width()/_projectionMatrix.get_height(), _projectionMatrix.near_plane(), _projectionMatrix.far_plane());
std::cout << _projectionMatrix.compute_matrix();
// shader->setUniform("ProjectionMatrix", vmml::mat4f::IDENTITY);
shader->setUniform("ProjectionMatrix", _projectionMatrix.compute_matrix());
shader->setUniform("ViewMatrix", _viewMatrix);
shader->setUniform("ModelMatrix", _modelMatrix);
vmml::mat3f normalMatrix;
vmml::compute_inverse(vmml::transpose(vmml::mat3f(_modelMatrix)), normalMatrix);
shader->setUniform("NormalMatrix", normalMatrix);
shader->setUniform("EyePos", _eyePos);
shader->setUniform("LightPos", vmml::vec4f(0.0f, 1.f, .5f, 1.f));
shader->setUniform("Ia", vmml::vec3f(1.f));
shader->setUniform("Id", vmml::vec3f(1.f));
shader->setUniform("Is", vmml::vec3f(1.f));
}
else
{
util::log("No shader available.", util::LM_WARNING);
}
geometry.draw(mode);
}
}
Scene::Scene(string XmlSrc, ShaderPtr& sPtr, Camera& cam){
XMLDocument doc;
doc.LoadFile(XmlSrc.c_str());
// Get the root (Scene) element
XMLElement * elScene = doc.FirstChildElement("Scene");
if (!elScene){
cout << "XML Root not found. " << endl;
exit(5);
}
// Get and verify that important things are there
XMLElement * elCam = check("Camera", elScene);
XMLElement * elShade = check("Shader", elScene);
XMLElement * elGeom = check("Geom", elScene);
XMLElement * elLight = check("Light", elScene);
// First create host assets
// Init Camera
Camera::Type camType = getCamera(*elCam, cam);
if (camType == Camera::Type::NIL){
cout << "Error creating Camera" << endl;
exit(7);
}
// Init Geometry
for (XMLElement * el = elGeom->FirstChildElement(); el; el = el->NextSiblingElement())
m_vGeometry.push_back(getGeom(el));
// Set up the lights, arbitrarily assigning pre-existing geometry as its representation
for (auto el = elLight->FirstChildElement(); el; el = el->NextSiblingElement())
m_vLights.push_back(getLight(el));
// Init shader
// The material count == #geom + # of point lights
int nMaterials = m_vGeometry.size() + std::count_if(
m_vLights.begin(), m_vLights.end(), [](const Light& l){
return l.getType() == Light::Type::POINT;
});
IqmTypeMap iqmTypes = getShader(elShade, sPtr, nMaterials, m_vLights.size());
// Sort so overlapping geometry is adjacent
std::sort(m_vGeometry.begin(), m_vGeometry.end());
// Create all GPU assets, starting by binding the shader
auto sBind = sPtr->ScopeBind();
// Create Geometry
for (auto it = m_vGeometry.begin(); it != m_vGeometry.end();){
// For the first instance, create the assets
createGPUAssets(iqmTypes, *it);
// For all remaining instances, just copy VAO and nIdx
int count = std::count(m_vGeometry.begin(), m_vGeometry.end(), *it);
auto cloneIt = it;
for (int i = 1; i < count; i++){
(it + i)->setNumIndices(it->getNumIdx());
(it + i)->setVAO(it->getVAO());
}
it += count;
}
// Set up material shader access
Shader * s = sPtr.get();
auto fixMaterial = [s](Geometry& G, int i){
string m = "MatArr[i].";
m[m.length() - 3] = '0' + i;
Material M = G.getMaterial();
// Material handles aren't static
M.SetReflectHandle(s->getHandle(m + "Reflectivity"));
M.setShinyHandle(s->getHandle(m + "Shininess"));
M.setDiffHandle(s->getHandle(m + "Diffuse"));
M.setSpecHandle(s->getHandle(m + "Specular"));
createGPUAssets(M);
G.setMaterial(M);
};
// Upload all geometry materials
for (int i = 0; i < m_vGeometry.size(); i++)
fixMaterial(m_vGeometry[i], i);
// Create lights
for (int i = 0; i < m_vLights.size(); i++){
// Upload to shader (Must be accessed like "TheLights[i].Type, GL3)
string s = "LightArr[i].";
s[s.length() - 3] = '0' + i;
// Store handles per light, since they could move
m_vLights[i].SetTypeHandle(sPtr->getHandle(s + "Type"));
m_vLights[i].SetPosOrHalfHandle(sPtr->getHandle(s + "PosOrHalf"));
m_vLights[i].SetDirOrAttenHandle(sPtr->getHandle(s + "DirOrAtten"));
m_vLights[i].SetIntensityHandle(sPtr->getHandle(s + "Intensity"));
// Put light data on GPU
createGPUAssets(m_vLights[i]);
// Give point lights some geometry
if (m_vLights[i].getType() == Light::Type::POINT){
Geometry lightGeom = m_vGeometry[0];
lightGeom.identity(); // Maybe scale it somehow?
mat4 light_T = glm::translate(m_vLights[i].getPos());
lightGeom.leftMultM(light_T);
Material lightMat(10.f, 0.f, vec4(glm::linearRand(vec3(0), vec3(1)), 0.5f), vec4(1));
lightGeom.setMaterial(lightMat);
fixMaterial(lightGeom, i + m_vGeometry.size() );
m_vLights[i].SetGeometry(lightGeom);
}
//// Set up point light materials
//if (m_vLights[i].getType() == Light::Type::POINT){
// Geometry g = m_vLights[i].GetGeometry(); // I wish we didn't have to go back and forth like this
// fixMaterial(g, i + m_vGeometry.size() - 1); // but returning a reference seems like overkill
// m_vLights[i].SetGeometry(g);
//}
}
setupMiscUniforms(sPtr);
Scene::s_EnvMapHandle = sPtr->getHandle("u_EnvMap");
//// Find a better place for this, do XML
std::string cubeFaces[6] = { "posX.png", "negX.png", "posY.png", "negY.png", "posZ.png", "negZ.png" };
m_EnvMap = Textures::CubeMap(cubeFaces);
}
/*!
* @brief Draws everything that is in the entities list with a sprite component
* @param Entity the entity that is going to be drawn
* @param camera the camera used to draw the objects to
*/
void GLGraphics::DrawEntity(const EntityPtr &Entity, const CameraPtr &camera)
{
ShaderPtr shader = _shaders.find(Entity->GET_COMPONENT(Sprite)->_shaderName)->second;
TransformPtr transform = Entity->GET_COMPONENT(Transform);
if (shader.get() != nullptr)
{
//constructing the matrix of the transform
glm::mat4x4 object2world;
object2world = glm::translate(object2world,
glm::vec3( Entity->GET_COMPONENT(Transform)->position.x,
Entity->GET_COMPONENT(Transform)->position.y,
0.0f )
);
object2world = glm::rotate( object2world,
transform->rotation * 3.141592f / 180.f, // degrees to radians conversion
glm::vec3(0.f, 0.f, 1.0f)
);
object2world = glm::scale(object2world,
glm::vec3(transform->scale.x,
transform->scale.y,
0.f)
);
//Updating the uniforms in the shader, has to happen every frame
shader->UpdateUniforms("model", object2world);
shader->UpdateUniforms("view", camera->_viewMatrix);
//Switching the camera's projection matrix based on the flag
switch (camera->viewtype)
{
case Camera::CV_ORTHOGRAPHIC:
shader->UpdateUniforms("proj", camera->_ortho);
break;
case Camera::CV_PERSPECTIVE:
shader->UpdateUniforms("proj", camera->_pespective);
break;
}
shader->UpdateUniforms("color", Entity->GET_COMPONENT(Sprite)->_color);
shader->Use();
switch (Entity->GET_COMPONENT(Sprite)->mesh)
{
case Sprite::QUAD:
glBindVertexArray(_quadInfo.vao);
glDrawElements(
GL_TRIANGLE_STRIP, //Draw Type
6, //Number of points
GL_UNSIGNED_SHORT, //Data that it is when being read
nullptr);
break;
case Sprite::CIRCLE:
glBindVertexArray(_circleInfo.vao);
glDrawElements(GL_TRIANGLE_FAN, 30000, GL_UNSIGNED_SHORT, nullptr);
break;
default:
glBindVertexArray(_quadInfo.vao);
glDrawElements(GL_TRIANGLE_STRIP, 6, GL_UNSIGNED_SHORT, nullptr);
break;
}
}
}
ShaderPtr ShaderLibrary::CreateShader (const ShaderDesc& desc, const LogFunction& error_log)
{
try
{
//проверка корректности аргументов
if (!desc.name)
throw xtl::make_null_argument_exception ("", "desc.name");
if (!desc.source_code)
throw xtl::make_null_argument_exception ("", "desc.source_code");
if (!desc.source_code_size)
throw xtl::make_null_argument_exception ("", "desc.source_code_size");
if (!desc.profile)
throw xtl::make_null_argument_exception ("", "desc.profile");
const char* options = desc.options ? desc.options : "";
ShaderType type = (ShaderType)-1;
struct Profile2ShaderType
{
const char* profile;
ShaderType type;
const char* dx_profile;
};
static const Profile2ShaderType type_map [] = {
{"hlsl.vs", ShaderType_Vertex, "vs_4_0"},
{"hlsl.ps", ShaderType_Pixel, "ps_4_0"},
{"hlsl.gs", ShaderType_Geometry, "gs_4_0"},
{"hlsl.hs", ShaderType_Hull, "hs_4_0"},
{"hlsl.ds", ShaderType_Domain, "ds_4_0"},
{"hlsl.cs", ShaderType_Compute, "cs_4_0"},
};
static const size_t type_map_size = sizeof (type_map) / sizeof (*type_map);
const char* dx_profile = "";
for (size_t i=0; i<type_map_size; i++)
if (!strcmp (type_map [i].profile, desc.profile))
{
type = type_map [i].type;
dx_profile = type_map [i].dx_profile;
break;
}
if (type == (ShaderType)-1)
throw xtl::make_argument_exception ("", "desc.profile", desc.profile, "Unknown shader profile");
//формирование хэша для поиска в библиотеке
size_t source_code_size = desc.source_code_size == (size_t)-1 ? strlen (desc.source_code) : desc.source_code_size,
hash = common::crc32 (desc.source_code, source_code_size, common::strhash (options));
//поиск уже существующего шейдера
ShaderMap::iterator iter = shaders.find (hash);
if (iter != shaders.end ())
return iter->second;
//создание нового шейдера
ShaderCodePtr code (new ShaderCode (GetDeviceManager (), desc.name, dx_profile, desc.source_code, source_code_size, options, error_log), false);
ShaderPtr shader (new Shader (type, code, *this), false);
//регистрация шейдера в библиотеке
shader->RegisterDestroyHandler (xtl::bind (&ShaderLibrary::RemoveShaderByHash, this, hash), GetTrackable ());
shaders.insert_pair (hash, shader.get ());
return shader;
}
catch (xtl::exception& e)
{
e.touch ("render::low_level::dx11::ShaderLibrary::CreateShader");
throw;
}
}