1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/3deng/3dscene.cpp	Thu Oct 23 01:46:07 2014 +0300
     1.3 @@ -0,0 +1,351 @@
     1.4 +#include <string>
     1.5 +#include "3dscene.h"
     1.6 +
     1.7 +using std::string;
     1.8 +
     1.9 +Scene::Scene(GraphicsContext *gc) {
    1.10 +	this->gc = gc;
    1.11 +
    1.12 +	ActiveCamera = 0;
    1.13 +	Shadows = false;
    1.14 +	LightHalos = false;
    1.15 +	HaloSize = 10.0f;
    1.16 +	UseFog = false;
    1.17 +
    1.18 +	memset(lights, 0, 8 * sizeof(Light*));
    1.19 +
    1.20 +	AmbientLight = Color(0.0f, 0.0f, 0.0f);
    1.21 +	ManageData = true;
    1.22 +}
    1.23 +
    1.24 +Scene::~Scene() {
    1.25 +
    1.26 +	if(ManageData) {
    1.27 +		std::list<Object*>::iterator obj = objects.begin();
    1.28 +		while(obj != objects.end()) {
    1.29 +			delete *obj++;
    1.30 +		}
    1.31 +
    1.32 +		std::list<Camera*>::iterator cam = cameras.begin();
    1.33 +		while(cam != cameras.end()) {
    1.34 +			delete *cam++;
    1.35 +		}
    1.36 +
    1.37 +		for(int i=0; i<8; i++) {
    1.38 +			delete lights[i];
    1.39 +		}
    1.40 +
    1.41 +		std::list<Curve*>::iterator citer = curves.begin();
    1.42 +		while(citer != curves.end()) {
    1.43 +			delete *citer++;
    1.44 +		}
    1.45 +
    1.46 +		std::list<ShadowVolume>::iterator sv = StaticShadowVolumes.begin();
    1.47 +		while(sv != StaticShadowVolumes.end()) {
    1.48 +			delete (*sv++).shadow_mesh;
    1.49 +		}
    1.50 +	}
    1.51 +
    1.52 +}
    1.53 +
    1.54 +void Scene::SetGraphicsContext(GraphicsContext *gc) {
    1.55 +	this->gc = gc;
    1.56 +}
    1.57 +
    1.58 +void Scene::AddCamera(Camera *cam) {
    1.59 +	cameras.push_back(cam);
    1.60 +	if(!ActiveCamera) ActiveCamera = cam;
    1.61 +}
    1.62 +
    1.63 +void Scene::AddLight(Light *light) {
    1.64 +	for(int i=0; i<8; i++) {
    1.65 +		if(!lights[i]) {
    1.66 +			lights[i] = light;
    1.67 +			break;
    1.68 +		}
    1.69 +	}
    1.70 +}
    1.71 +
    1.72 +void Scene::AddObject(Object *obj) {
    1.73 +	if(obj->material.Alpha < 1.0f) {
    1.74 +        objects.push_back(obj);
    1.75 +	} else {
    1.76 +		objects.push_front(obj);
    1.77 +	}
    1.78 +}
    1.79 +
    1.80 +void Scene::AddStaticShadowVolume(TriMesh *mesh, const Light *light) {
    1.81 +	ShadowVolume svol;
    1.82 +	svol.shadow_mesh = mesh;
    1.83 +	svol.light = light;
    1.84 +	StaticShadowVolumes.push_back(svol);
    1.85 +}
    1.86 +
    1.87 +void Scene::AddCurve(Curve *curve) {
    1.88 +	curves.push_back(curve);
    1.89 +}
    1.90 +
    1.91 +
    1.92 +void Scene::RemoveObject(const Object *obj) {
    1.93 +	std::list<Object *>::iterator iter = objects.begin();
    1.94 +	while(iter != objects.end()) {
    1.95 +		if(obj == *iter) {
    1.96 +			objects.erase(iter);
    1.97 +			return;
    1.98 +		}
    1.99 +		iter++;
   1.100 +	}
   1.101 +}
   1.102 +
   1.103 +void Scene::RemoveLight(const Light *light) {
   1.104 +	for(int i=0; i<8; i++) {
   1.105 +		if(light = lights[i]) {
   1.106 +			lights[i] = 0;
   1.107 +			return;
   1.108 +		}
   1.109 +	}
   1.110 +}
   1.111 +
   1.112 +
   1.113 +Camera *Scene::GetCamera(const char *name) {
   1.114 +	std::list<Camera *>::iterator iter = cameras.begin();
   1.115 +	while(iter != cameras.end()) {
   1.116 +		if(!strcmp((*iter)->name.c_str(), name)) return *iter;
   1.117 +		iter++;
   1.118 +	}
   1.119 +	return 0;
   1.120 +}
   1.121 +
   1.122 +Light *Scene::GetLight(const char *name) {
   1.123 +	for(int i=0; i<8; i++) {
   1.124 +		if(!strcmp(lights[i]->name.c_str(), name)) return lights[i];
   1.125 +	}
   1.126 +	return 0;
   1.127 +}
   1.128 +
   1.129 +Object *Scene::GetObject(const char *name) {
   1.130 +	std::list<Object *>::iterator iter = objects.begin();
   1.131 +	while(iter != objects.end()) {
   1.132 +		if(!strcmp((*iter)->name.c_str(), name)) return *iter;
   1.133 +		iter++;
   1.134 +	}
   1.135 +	return 0;
   1.136 +}
   1.137 +
   1.138 +Curve *Scene::GetCurve(const char *name) {
   1.139 +	std::list<Curve *>::iterator iter = curves.begin();
   1.140 +	while(iter != curves.end()) {
   1.141 +		if(!strcmp((*iter)->name.c_str(), name)) return *iter;
   1.142 +		iter++;
   1.143 +	}
   1.144 +	return 0;
   1.145 +}
   1.146 +
   1.147 +
   1.148 +std::list<Object*> *Scene::GetObjectsList() {
   1.149 +	return &objects;
   1.150 +}
   1.151 +
   1.152 +
   1.153 +void Scene::SetActiveCamera(Camera *cam) {
   1.154 +	ActiveCamera = cam;
   1.155 +}
   1.156 +
   1.157 +Camera *Scene::GetActiveCamera() const {
   1.158 +	return ActiveCamera;
   1.159 +}
   1.160 +
   1.161 +void Scene::SetShadows(bool enable) {
   1.162 +	Shadows = enable;
   1.163 +}
   1.164 +
   1.165 +void Scene::SetHaloDrawing(bool enable) {
   1.166 +	LightHalos = enable;
   1.167 +}
   1.168 +
   1.169 +void Scene::SetHaloSize(float size) {
   1.170 +	HaloSize = size;
   1.171 +}
   1.172 +
   1.173 +void Scene::SetAmbientLight(Color ambient) {
   1.174 +	AmbientLight = ambient;
   1.175 +}
   1.176 +
   1.177 +Color Scene::GetAmbientLight() const {
   1.178 +	return AmbientLight;
   1.179 +}
   1.180 +
   1.181 +void Scene::SetFog(bool enable, Color FogColor, float Near, float Far) {
   1.182 +	UseFog = enable;
   1.183 +	if(enable) {
   1.184 +		this->FogColor = FogColor;
   1.185 +		NearFogRange = Near;
   1.186 +		FarFogRange = Far;
   1.187 +	}
   1.188 +}
   1.189 +
   1.190 +
   1.191 +void Scene::SetupLights() const {
   1.192 +	int LightIndex = 0;
   1.193 +	for(int i=0; i<8; i++) {
   1.194 +		if(lights[i]) {
   1.195 +			lights[i]->SetLight(LightIndex++, gc);
   1.196 +		}
   1.197 +	}
   1.198 +	gc->D3DDevice->LightEnable(LightIndex, false);
   1.199 +}
   1.200 +
   1.201 +
   1.202 +void Scene::RenderShadows() const {
   1.203 +	
   1.204 +	for(int i=0, slight=0; i<8; i++) {
   1.205 +		if(!lights[i] || !lights[i]->GetShadowCasting()) continue;
   1.206 +
   1.207 +		// disable shadow casting light and render the scene (first pass)
   1.208 +		gc->SetAlphaBlending(true);
   1.209 +		gc->D3DDevice->LightEnable(i, false);
   1.210 +		std::list<Object*>::const_iterator iter = objects.begin();
   1.211 +		while(iter != objects.end()) {
   1.212 +			Object *obj = *iter++;
   1.213 +			obj->Render();
   1.214 +		}
   1.215 +		gc->D3DDevice->LightEnable(i, true);
   1.216 +		gc->SetAlphaBlending(false);
   1.217 +
   1.218 +		// shadow volume front faces
   1.219 +		gc->SetZWrite(false);
   1.220 +		gc->SetColorWrite(false, false, false, false);
   1.221 +		gc->SetLighting(false);
   1.222 +	
   1.223 +		gc->SetStencilBuffering(true);
   1.224 +		gc->SetStencilFunc(CMP_ALWAYS);
   1.225 +		gc->SetStencilOp(SOP_KEEP, SOP_KEEP, SOP_INC);
   1.226 +
   1.227 +		iter = objects.begin();
   1.228 +		while(iter != objects.end()) {
   1.229 +			Object *obj = *iter++;
   1.230 +			TriMesh *mesh = obj->GetShadowVolume(slight);
   1.231 +			if(mesh) {
   1.232 +				gc->SetWorldMatrix(obj->GetWorldTransform());
   1.233 +				gc->Draw(const_cast<Vertex*>(mesh->GetVertexArray()), mesh->GetVertexCount());
   1.234 +
   1.235 +				// back faces pass
   1.236 +				//gc->SetFrontFace(CounterClockwise);
   1.237 +				//gc->SetStencilOp(SOP_KEEP, SOP_KEEP, SOP_DEC);
   1.238 +
   1.239 +				//gc->Draw(const_cast<Vertex*>(mesh->GetVertexArray()), mesh->GetVertexCount());
   1.240 +			}
   1.241 +		}
   1.242 +
   1.243 +		// static shadow volumes
   1.244 +		gc->SetWorldMatrix(Matrix4x4());
   1.245 +		std::list<ShadowVolume>::const_iterator shadow_iter = StaticShadowVolumes.begin();
   1.246 +		while(shadow_iter != StaticShadowVolumes.end()) {
   1.247 +			if(shadow_iter->light == lights[i]) {
   1.248 +				gc->Draw(const_cast<Vertex*>(shadow_iter->shadow_mesh->GetVertexArray()), shadow_iter->shadow_mesh->GetVertexCount());
   1.249 +			}
   1.250 +			shadow_iter++;
   1.251 +		}
   1.252 +
   1.253 +		// back faces pass
   1.254 +		gc->SetFrontFace(CounterClockwise);
   1.255 +		gc->SetStencilOp(SOP_KEEP, SOP_KEEP, SOP_DEC);
   1.256 +
   1.257 +		iter = objects.begin();
   1.258 +		while(iter != objects.end()) {
   1.259 +			Object *obj = *iter++;
   1.260 +			TriMesh *mesh = obj->GetShadowVolume(slight);
   1.261 +			if(mesh) {
   1.262 +				gc->SetWorldMatrix(obj->GetWorldTransform());
   1.263 +				gc->Draw(const_cast<Vertex*>(mesh->GetVertexArray()), mesh->GetVertexCount());
   1.264 +			}
   1.265 +		}
   1.266 +
   1.267 +		// static shadow volumes
   1.268 +		gc->SetWorldMatrix(Matrix4x4());
   1.269 +		shadow_iter = StaticShadowVolumes.begin();
   1.270 +		while(shadow_iter != StaticShadowVolumes.end()) {
   1.271 +			if(shadow_iter->light == lights[i]) {
   1.272 +				gc->Draw(const_cast<Vertex*>(shadow_iter->shadow_mesh->GetVertexArray()), shadow_iter->shadow_mesh->GetVertexCount());
   1.273 +			}
   1.274 +			shadow_iter++;
   1.275 +		}
   1.276 +
   1.277 +		gc->SetFrontFace(Clockwise);
   1.278 +
   1.279 +		gc->SetLighting(true);
   1.280 +		gc->SetZWrite(true);
   1.281 +		gc->SetColorWrite(true, true, true, true);
   1.282 +
   1.283 +		gc->SetStencilOp(SOP_KEEP, SOP_KEEP, SOP_KEEP);
   1.284 +		gc->SetStencilFunc(CMP_EQUAL);
   1.285 +		gc->SetStencilReference(0);
   1.286 +
   1.287 +		gc->SetLighting(true);
   1.288 +		//SetupLights();
   1.289 +
   1.290 +		slight++;
   1.291 +	}
   1.292 +}
   1.293 +
   1.294 +void Scene::Render() const {
   1.295 +	gc->SetAmbientLight(AmbientLight);
   1.296 +
   1.297 +	// set camera
   1.298 +	if(!ActiveCamera) return;
   1.299 +	ActiveCamera->CreateCameraMatrix();
   1.300 +	gc->SetViewMatrix(ActiveCamera->GetCameraMatrix());
   1.301 +
   1.302 +	// set projection matrix
   1.303 +	float NearClip, FarClip;
   1.304 +	Matrix4x4 ProjMat;
   1.305 +	ActiveCamera->GetClippingPlanes(&NearClip, &FarClip);
   1.306 +	CreateProjectionMatrix(&ProjMat, ActiveCamera->GetFOV(), 1.3333333f, NearClip, FarClip);
   1.307 +	gc->SetProjectionMatrix(ProjMat);	
   1.308 +
   1.309 +	SetupLights();
   1.310 +
   1.311 +	// render shadows
   1.312 +	if(Shadows) {
   1.313 +
   1.314 +		// make array of shadow-casting lights
   1.315 +		Light *ShadowCasters[8];
   1.316 +		Light **lptr = ShadowCasters;
   1.317 +		for(int i=0; i<8; i++) {
   1.318 +			if(lights[i] && lights[i]->GetShadowCasting()) {
   1.319 +				*lptr++ = lights[i];
   1.320 +			}
   1.321 +		}
   1.322 +		int ShadowCasterCount = (int)(lptr - ShadowCasters);
   1.323 +
   1.324 +		std::list<Object *>::const_iterator iter = objects.begin();
   1.325 +		while(iter != objects.end()) {
   1.326 +			Object *obj = *iter++;
   1.327 +			
   1.328 +			if(obj->GetShadowCasting()) {
   1.329 +                obj->CalculateShadows((const Light**)ShadowCasters, ShadowCasterCount);
   1.330 +			}
   1.331 +		}
   1.332 +
   1.333 +		RenderShadows();
   1.334 +	}
   1.335 +
   1.336 +	// render objects
   1.337 +	std::list<Object *>::const_iterator iter = objects.begin();
   1.338 +	while(iter != objects.end()) {
   1.339 +		Object *obj = *iter++;
   1.340 +
   1.341 +		obj->Render();
   1.342 +	}
   1.343 +
   1.344 +	if(Shadows) {
   1.345 +		gc->SetStencilBuffering(false);
   1.346 +		gc->SetStencilFunc(CMP_ALWAYS);
   1.347 +	}
   1.348 +
   1.349 +	if(LightHalos) {
   1.350 +		for(int i=0; i<8; i++) {
   1.351 +			if(lights[i]) lights[i]->Draw(gc, HaloSize);
   1.352 +		}
   1.353 +	}
   1.354 +}
   1.355 \ No newline at end of file