//NewVUNModel process and uploads the data to the GPU.
func NewVUNModel(indices []uint16, indexedVertices []glm.Vec3, indexedUvs []glm.Vec2, indexedNormals []glm.Vec3) Mesh {
m := VUNMesh{}
m.VAO = gl2.GenVertexArray()
m.VAO.Bind()
defer m.VAO.Unbind()
m.Msize = int32(len(indices))
//create a bunch of buffers and fill them
//Positions
m.Positions = gl2.GenBuffer()
m.Positions.Bind(gl.ARRAY_BUFFER)
m.Positions.Data(gl.ARRAY_BUFFER, len(indexedVertices)*3*4, ptr(indexedVertices), gl.STATIC_DRAW)
//Uvs
m.Uvs = gl2.GenBuffer()
m.Uvs.Bind(gl.ARRAY_BUFFER)
m.Uvs.Data(gl.ARRAY_BUFFER, len(indexedUvs)*2*4, ptr(indexedUvs), gl.STATIC_DRAW)
//Normals
m.Normals = gl2.GenBuffer()
m.Normals.Bind(gl.ARRAY_BUFFER)
m.Normals.Data(gl.ARRAY_BUFFER, len(indexedNormals)*3*4, ptr(indexedNormals), gl.STATIC_DRAW)
//indices
m.Indices = gl2.GenBuffer()
m.Indices.Bind(gl.ELEMENT_ARRAY_BUFFER)
m.Indices.Data(gl.ELEMENT_ARRAY_BUFFER, len(indices)*2, ptr(indices), gl.STATIC_DRAW)
return &m
}
//InitPostProcessSystem will allocate all the resources required to make the Image Post Processing system work.
func InitPostProcessSystem() {
//init model
quadvao := gl2.GenVertexArray()
quadvao.Bind()
defer quadvao.Unbind()
vertpos := gl2.GenBuffer()
vertpos.Bind(gl.ARRAY_BUFFER)
gl.BufferData(gl.ARRAY_BUFFER, len(_quadvertpos)*2*4, ptr(_quadvertpos), gl.STATIC_DRAW)
vertuv := gl2.GenBuffer()
vertuv.Bind(gl.ARRAY_BUFFER)
gl.BufferData(gl.ARRAY_BUFFER, len(_quadvertuv)*2*4, ptr(_quadvertuv), gl.STATIC_DRAW)
fstri.vao = quadvao
fstri.pos = vertpos
fstri.uv = vertuv
}