func drawChunk(chunkX, chunkY int64) {
chunk := terrain.GetChunkAt(chunkX, chunkY)
if chunk.DisplayList == 0 {
chunk.DisplayList = gl.GenLists(1)
gl.NewList(chunk.DisplayList, gl.COMPILE)
for x := 0; x < config.ChunkArraySize()-1; x++ {
for y := 0; y < config.ChunkArraySize()-1; y++ {
gl.Normal3d(chunk.Normals.Get(x, y))
gl.Vertex3d(chunk.Vertices.Get(x, y))
x++
gl.Normal3d(chunk.Normals.Get(x, y))
gl.Vertex3d(chunk.Vertices.Get(x, y))
y++
gl.Normal3d(chunk.Normals.Get(x, y))
gl.Vertex3d(chunk.Vertices.Get(x, y))
x--
gl.Normal3d(chunk.Normals.Get(x, y))
gl.Vertex3d(chunk.Vertices.Get(x, y))
y--
}
}
gl.EndList()
}
gl.CallList(chunk.DisplayList)
}
func init_() {
pos := []float32{5.0, 5.0, 10.0, 0.0}
red := []float32{0.8, 0.1, 0.0, 1.0}
green := []float32{0.0, 0.8, 0.2, 1.0}
blue := []float32{0.2, 0.2, 1.0, 1.0}
gl.Lightfv(gl.LIGHT0, gl.POSITION, pos)
gl.Enable(gl.CULL_FACE)
gl.Enable(gl.LIGHTING)
gl.Enable(gl.LIGHT0)
gl.Enable(gl.DEPTH_TEST)
/* make the gears */
gear1 = gl.GenLists(1)
gl.NewList(gear1, gl.COMPILE)
gl.Materialfv(gl.FRONT, gl.AMBIENT_AND_DIFFUSE, red)
gear(1.0, 4.0, 1.0, 20, 0.7)
gl.EndList()
gear2 = gl.GenLists(1)
gl.NewList(gear2, gl.COMPILE)
gl.Materialfv(gl.FRONT, gl.AMBIENT_AND_DIFFUSE, green)
gear(0.5, 2.0, 2.0, 10, 0.7)
gl.EndList()
gear3 = gl.GenLists(1)
gl.NewList(gear3, gl.COMPILE)
gl.Materialfv(gl.FRONT, gl.AMBIENT_AND_DIFFUSE, blue)
gear(1.3, 2.0, 0.5, 10, 0.7)
gl.EndList()
gl.Enable(gl.NORMALIZE)
if *printInfo {
print("GL_RENDERER = ", gl.GetString(gl.RENDERER), "\n")
print("GL_VERSION = ", gl.GetString(gl.VERSION), "\n")
print("GL_VENDOR = ", gl.GetString(gl.VENDOR), "\n")
print("GL_EXTENSIONS = ", gl.GetString(gl.EXTENSIONS), "\n")
}
}