func CreateVOB() {
Verticies := [...]gl.Float{-0.8f, -0.8f, 0.0f, 1.0f,
0.0f, 0.8f, 0.0f, 1.0f,
0.8f, -0.8f, 0.0f, 1.0f}
Colours := [...]gl.Float{1.0f, 0.0f, 0.0f, 1.0f,
0.0f, 1.0f, 0.0f, 1.0f,
0.0f, 0.0f, 1.0f, 1.0f}
BufferSize = unsafe.Sizeof(Verticies)
VertexSize = unsafe.Sizeof(Verticies[0])
RgbOffset = unsafe.Sizeof(Verticies[0].XYZW)
gl.GenVertexArrays(1, &VaoId)
gl.BindVertexArray(VaoId)
gl.GenBuffers(1, &VboId)
gl.BindBuffer(gl.ARRAY_BUFFER, VboId)
gl.BufferData(gl.ARRAY_BUFFER, unsafe.Sizeof(Verticies), Verticies, gl.STATIC_DRAW)
gl.VertexAttribPointer(1, 4, gl.Float, gl.FALSE, 0, 0)
gl.EnableVertexAttribArray(1)
if err := gl.GetError(); err != gl.NO_ERROR {
fmt.Println(err, "ERROR: Could not create a VBO")
}
}
func LastErrors(filterBy ...gl.Enum) []gl.Enum {
var errs []gl.Enum = nil
var err gl.Enum
for {
if err = gl.GetError(); err == 0 {
break
} else if (len(filterBy) == 0) || (gltypes.InSliceAt(filterBy, err) >= 0) {
if errs == nil {
errs = []gl.Enum{err}
} else {
errs = append(errs, err)
}
}
}
return errs
}