GeometryTexturePatch16::GeometryTexturePatch16( int x , int y , int sizeC , int scaleC , osg::ref_ptr<osg::Image> image , double dAdd , double dScale )
{
//сдвиг и масштабирование
m_dAdd = dAdd;
m_dScale = dScale;
//создать объект для хранения в нем геометрии
m_patchGeom = new osg::Geometry;
//создать массив вершин
m_patchGeom->setVertexArray( CreateVertexArray( x , y , sizeC , scaleC ).get() );
//создать массив текстурных координат
m_patchGeom->setTexCoordArray( 0, CreateTexCoordArray( x , y , sizeC , scaleC ,
image->data() ).get() );
// Create an array for the single normal.
osg::ref_ptr< osg::Vec3Array > n = new osg::Vec3Array;
n->push_back( osg::Vec3( 0, -1, 0 ) );
m_patchGeom->setNormalArray( n.get() );
m_patchGeom->setNormalBinding( osg::Geometry::BIND_OVERALL );
std::vector< unsigned int > m_vIndex;
//заполнить вектор индексами
FillIndexVector( m_vIndex , sizeC );
m_patchGeom->addPrimitiveSet( new osg::DrawElementsUInt(
osg::PrimitiveSet::TRIANGLE_STRIP, m_vIndex.size() , &m_vIndex[ 0 ] ) );
}
bool Mesh::Initialize(void * buffer)
{
bool wereThereErrors = false;
if (!CreateVertexArray())
{
wereThereErrors = true;
}
free(buffer);
if (wereThereErrors)
ShutDown();
return !wereThereErrors;
}
GLuint CreateGroundPlaneData(){
int width = 10;
int length = 10;
int numVertices = width * length;
CustomVertexNormBiTangentUV* groundPlaneData = new CustomVertexNormBiTangentUV[numVertices];
int halfWidth = width / 2;
int halfHeight = length / 2;
int index = 0;
//create a buffer of vertex info using the height map
for (int x = 0; x < width; x++){
for (int z = 0; z < length; z++){
index = x * length + z;
groundPlaneData[index].vertexPoint.x = (x - halfWidth) * 25.0f;
groundPlaneData[index].vertexPoint.y = -5.0f;
groundPlaneData[index].vertexPoint.z = (z - halfHeight) * 25.0f;
groundPlaneData[index].normal = vec3(0.0f, 1.0f, 0.0f);
groundPlaneData[index].biTangent = vec3(1.0f, 0.0f, 0.0f);
groundPlaneData[index].tangent = vec3(0.0f, 0.0f, -1.0f);
groundPlaneData[index].uv.x = x * 0.5f;
groundPlaneData[index].uv.y = z * 0.5f;
}
}
int numIndices = (width - 1) * (length - 1) * 6;
unsigned int *indices = new unsigned int[numIndices];
index = 0;
for (int x = 0; x < width - 1; x++){
for (int z = 0; z < length - 1; z++){
indices[index++] = (width * x) + z;
indices[index++] = (width * x) + z + 1;
indices[index++] = (width * (x + 1)) + z;
indices[index++] = (width * (x + 1)) + z;
indices[index++] = (width * x) + z + 1;
indices[index++] = (width * (x + 1)) + z + 1;
}
}
GLuint data = CreateVertexArray(groundPlaneData, numVertices, sizeof(CustomVertexNormBiTangentUV), 5, indices, numIndices / 3);
delete[] indices;
delete[] groundPlaneData;
return data;
}
void DynamicGroupLevel2048Node::AddGeometry( int i )
{
//добавить геометрию в i'ый узел
//создать объект для хранения в нем геометрии
osg::ref_ptr< osg::Geometry > geom = new osg::Geometry;
//создать массив вершин
geom->setVertexArray( CreateVertexArray( 0 , 0 , 68 , 2048 ).get() );
std::vector< unsigned short > m_vIndex;
//заполнить вектор индексами
FillIndexVector( m_vIndex , 68 );
geom->addPrimitiveSet( new osg::DrawElementsUShort(
osg::PrimitiveSet::TRIANGLE_STRIP, m_vIndex.size() / GEOM_DIV , &m_vIndex[ 0 ] ) );
osg::BoundingBox bbox( 0, 0, 0, 512 * 512 , 512 * 512 , 64 );
geom->setInitialBound( bbox );
//добавить рисуемую геометрию
m_vData[ i ].m_Geode->addDrawable( geom.get() );
}
VertexArray::VertexArray(const VertexDeclarationPtr* declarations, size_t declCount, boost::shared_ptr<IndexBuffer> indexBuffer)
: declarations(declarations, declarations + declCount)
{
vao = CreateVertexArray(this->declarations, NULL);
}
VertexArray::VertexArray(const VertexDeclarationPtr* declarations, size_t declCount)
: declarations(declarations, declarations + declCount)
{
vao = CreateVertexArray(this->declarations, NULL);
}
VertexArray::VertexArray(const DeclarationList& declarations, boost::shared_ptr<IndexBuffer> indexBuffer)
: declarations(declarations), indexBuffer(indexBuffer), vao(CreateVertexArray(declarations, indexBuffer))
{
}
VertexArray::VertexArray(const DeclarationList& declarations)
: declarations(declarations), vao(CreateVertexArray(declarations, NULL))
{
}
void SpriteBatch::Init(Shader shader)
{
this->shader = shader;
CreateVertexArray();
}
