func uploadGeometry(mesh *geometry) { gl.GenVertexArrays(1, &mesh.glVao) gl.BindVertexArray(mesh.glVao) gl.GenBuffers(1, &mesh.glVertBuf) gl.BindBuffer(gl.ARRAY_BUFFER, mesh.glVertBuf) gl.EnableVertexAttribArray(progPosAttrLoc) gl.VertexAttribPointer(progPosAttrLoc, 3, gl.FLOAT, gl.FALSE, 0, gl.Pointer(nil)) gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(4*len(mesh.glVerts)), gl.Pointer(&mesh.glVerts[0]), gl.STATIC_DRAW) gl.BindBuffer(gl.ARRAY_BUFFER, 0) gl.BindVertexArray(0) }
func renderGeometry(mesh *geometry) { gl.BindVertexArray(mesh.glVao) gl.DrawArrays(mesh.glMode, 0, mesh.glNumVerts) gl.BindVertexArray(0) }