BillboardObject::BillboardObject( const String& textureName,
const float initialSize,
const Vector3& position,
SceneNode* rootNode,
const std::string& material)
{
SceneManager* sceneMgr = rootNode->getCreator();
Vector3 finalPosition = position.normalisedCopy() * 1000.f;
static unsigned int bodyCount=0;
/// \todo These billboards are not 100% correct, might want to revisit them later
mBBSet = sceneMgr->createBillboardSet("SkyBillboardSet"+StringConverter::toString(bodyCount), 1);
mBBSet->setDefaultDimensions(550.f*initialSize, 550.f*initialSize);
mBBSet->setBillboardType(BBT_PERPENDICULAR_COMMON);
mBBSet->setCommonDirection( -position.normalisedCopy() );
mBBSet->setVisibilityFlags(RV_Sky);
mNode = rootNode->createChildSceneNode();
mNode->setPosition(finalPosition);
mNode->attachObject(mBBSet);
mBBSet->createBillboard(0,0,0);
mBBSet->setCastShadows(false);
mMaterial = sh::Factory::getInstance().createMaterialInstance ("BillboardMaterial"+StringConverter::toString(bodyCount), material);
mMaterial->setProperty("texture", sh::makeProperty<sh::StringValue>(new sh::StringValue(textureName)));
sh::Factory::getInstance().getMaterialInstance ("BillboardMaterial"+StringConverter::toString(bodyCount))->setListener(this);
mBBSet->setMaterialName("BillboardMaterial"+StringConverter::toString(bodyCount));
bodyCount++;
}
void BillboardObject::init(const String& textureName,
const float initialSize,
const Vector3& position,
SceneNode* rootNode)
{
SceneManager* sceneMgr = rootNode->getCreator();
Vector3 finalPosition = position.normalisedCopy() * 1000.f;
static unsigned int bodyCount=0;
/// \todo These billboards are not 100% correct, might want to revisit them later
mBBSet = sceneMgr->createBillboardSet("SkyBillboardSet"+StringConverter::toString(bodyCount), 1);
mBBSet->setDefaultDimensions(550.f*initialSize, 550.f*initialSize);
mBBSet->setBillboardType(BBT_PERPENDICULAR_COMMON);
mBBSet->setCommonDirection( -position.normalisedCopy() );
mBBSet->setVisibilityFlags(RV_Sky);
mNode = rootNode->createChildSceneNode();
mNode->setPosition(finalPosition);
mNode->attachObject(mBBSet);
mBBSet->createBillboard(0,0,0);
mBBSet->setCastShadows(false);
mMaterial = MaterialManager::getSingleton().create("BillboardMaterial"+StringConverter::toString(bodyCount), ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);
mMaterial->removeAllTechniques();
Pass* p = mMaterial->createTechnique()->createPass();
p->setSceneBlending(SBT_TRANSPARENT_ALPHA);
p->setDepthCheckEnabled(false);
p->setDepthWriteEnabled(false);
p->setSelfIllumination(1.0,1.0,1.0);
p->setDiffuse(0.0,0.0,0.0,1.0);
p->setAmbient(0.0,0.0,0.0);
p->setPolygonModeOverrideable(false);
p->createTextureUnitState(textureName);
mBBSet->setMaterialName("BillboardMaterial"+StringConverter::toString(bodyCount));
HighLevelGpuProgramManager& mgr = HighLevelGpuProgramManager::getSingleton();
HighLevelGpuProgramPtr vshader;
if (mgr.resourceExists("BBO_VP"))
vshader = mgr.getByName("BBO_VP");
else
vshader = mgr.createProgram("BBO_VP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "cg", GPT_VERTEX_PROGRAM);
vshader->setParameter("profiles", "vs_2_x arbvp1");
vshader->setParameter("entry_point", "main_vp");
StringUtil::StrStreamType outStream;
outStream <<
"void main_vp( \n"
" float4 position : POSITION, \n"
" in float2 uv : TEXCOORD0, \n"
" out float2 oUV : TEXCOORD0, \n"
" out float4 oPosition : POSITION, \n"
" uniform float4x4 worldViewProj \n"
") \n"
"{ \n"
" oUV = uv; \n"
" oPosition = mul( worldViewProj, position ); \n"
"}";
vshader->setSource(outStream.str());
vshader->load();
vshader->getDefaultParameters()->setNamedAutoConstant("worldViewProj", GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
mMaterial->getTechnique(0)->getPass(0)->setVertexProgram(vshader->getName());
HighLevelGpuProgramPtr fshader;
if (mgr.resourceExists("BBO_FP"))
fshader = mgr.getByName("BBO_FP");
else
fshader = mgr.createProgram("BBO_FP", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, "cg", GPT_FRAGMENT_PROGRAM);
fshader->setParameter("profiles", "ps_2_x arbfp1");
fshader->setParameter("entry_point", "main_fp");
StringUtil::StrStreamType outStream2;
outStream2 <<
"void main_fp( \n"
" in float2 uv : TEXCOORD0, \n"
" out float4 oColor : COLOR, \n";
if (RenderingManager::useMRT()) outStream2 <<
" out float4 oColor1 : COLOR1, \n";
outStream2 <<
" uniform sampler2D texture : TEXUNIT0, \n"
" uniform float4 diffuse, \n"
" uniform float4 emissive \n"
") \n"
"{ \n"
" float4 tex = tex2D(texture, uv); \n"
" oColor = float4(emissive.xyz,1) * tex * float4(1,1,1,diffuse.a); \n";
if (RenderingManager::useMRT()) outStream2 <<
" oColor1 = float4(1, 0, 0, 1); \n";
outStream2 <<
"}";
fshader->setSource(outStream2.str());
fshader->load();
fshader->getDefaultParameters()->setNamedAutoConstant("diffuse", GpuProgramParameters::ACT_SURFACE_DIFFUSE_COLOUR);
fshader->getDefaultParameters()->setNamedAutoConstant("emissive", GpuProgramParameters::ACT_SURFACE_EMISSIVE_COLOUR);
mMaterial->getTechnique(0)->getPass(0)->setFragmentProgram(fshader->getName());
bodyCount++;
}