OsdVertexBuffer *
OsdMesh::InitializeVertexBuffer(int numElements) {
if (!_dispatcher)
return NULL;
return _dispatcher->InitializeVertexBuffer(numElements, GetTotalVertices());
}
void RenderableObject::Init() {
//setup vao and vbo stuff
glGenVertexArrays(1, &vaoID);
glGenBuffers(1, &vboVerticesID);
glGenBuffers(1, &vboIndicesID);
//get total vertices and indices
totalVertices = GetTotalVertices();
totalIndices = GetTotalIndices();
primType = GetPrimitiveType();
//now allocate buffers
glBindVertexArray(vaoID);
glBindBuffer (GL_ARRAY_BUFFER, vboVerticesID);
glBufferData (GL_ARRAY_BUFFER, totalVertices * sizeof(glm::vec3), 0, GL_STATIC_DRAW);
GLfloat* pBuffer = static_cast<GLfloat*>(glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY));
FillVertexBuffer(pBuffer);
glUnmapBuffer(GL_ARRAY_BUFFER);
glEnableVertexAttribArray(shader["vVertex"]);
glVertexAttribPointer(shader["vVertex"], 3, GL_FLOAT, GL_FALSE,0,0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vboIndicesID);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, totalIndices * sizeof(GLuint), 0, GL_STATIC_DRAW);
GLuint* pIBuffer = static_cast<GLuint*>(glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY));
FillIndexBuffer(pIBuffer);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
glBindVertexArray(0);
}
void Allocate( const vector<msMesh> &vMeshes )
{
m_vVertex.resize( GetTotalVertices() );
m_vTriangles.resize( GetTotalTriangles() );
}
