func surfacePosNormList(surf *md3.Surface, frame int, output chan<- surfaceStringPair) {
buffer := new(bytes.Buffer)
vertCount := surf.NumVertices()
for vertIndex := 0; vertIndex < vertCount; vertIndex++ {
posNorm := surf.Vertex(frame, vertIndex)
if *swapYZ {
var t float32
t = posNorm.Origin.Y
posNorm.Origin.Y = posNorm.Origin.Z
posNorm.Origin.Z = t
t = posNorm.Normal.Y
posNorm.Normal.Y = posNorm.Normal.Z
posNorm.Normal.Z = t
}
_, err := fmt.Fprintf(buffer,
"v %f %f %f\nvn %f %f %f\n",
posNorm.Origin.X, posNorm.Origin.Y, posNorm.Origin.Z,
posNorm.Normal.X, posNorm.Normal.Y, posNorm.Normal.Z)
if err != nil {
panic(err)
}
}
output <- surfaceStringPair{surf, buffer.String()}
}
func surfaceTexCoordList(surf *md3.Surface, output chan<- surfaceStringPair) {
buffer := new(bytes.Buffer)
vertCount := surf.NumVertices()
for vertIndex := 0; vertIndex < vertCount; vertIndex++ {
texCoord := surf.TexCoord(vertIndex)
if *flipUVs {
texCoord.T = 1.0 - texCoord.T
}
_, err := fmt.Fprintf(buffer, "vt %f %f\n",
texCoord.S, texCoord.T)
if err != nil {
panic(err)
}
}
output <- surfaceStringPair{surf, buffer.String()}
}