public void SetPosition2(IntFloatVector2 pos)
{
var x = pos.X.Integer * 2 + 1;
var y = pos.Y.Integer * 2 + 1;
var oldX = Position.X.Integer * 2 + 1;
var oldY = Position.Y.Integer * 2 + 1;
Position = pos;
// for slice updates we are only interested in the integer part
if (x == oldX && y == oldY)
{
return;
}
if (y > oldY)
{
UpdateRows((_n - oldY) & _n, Math.Min((y - oldY), _n));
}
else if (oldY > y)
{
UpdateRows((_n - y) & _n, Math.Min((oldY - y), _n));
}
if (x > oldX)
{
UpdateColumns((_n - oldX) & _n, Math.Min((x - oldX), _n));
}
else if (oldX > x)
{
UpdateColumns((_n - x) & _n, Math.Min((oldX - x), _n));
}
}
public void MoveBy(float dx, float dy)
{
if (Math.Abs(dx) < 0.0000001f && Math.Abs(dy) < 0.0000001f)
{
return;
}
Position = Position.MoveBy(dx, dy);
UpdatePosition();
}
public Clipmap(SceneManager scene)
{
_scene = scene;
_scene.QueueStarted += (sender, args) =>
{
if (args.RenderQueueId == _scene.GetRenderQueue().DefaultRenderGroup)
{
QueuePatches(_scene.GetRenderQueue());
}
args.SkipInvocation = false;
};
using (var testMap = (Bitmap)Image.FromFile(@"height.jpg"))
{
_testMapWidth = testMap.Width;
_testMapHeight = testMap.Height;
_testMap = new float[_testMapWidth * _testMapHeight];
var i = 0;
for (var y = 0; y < testMap.Height; y++)
{
for (var x = 0; x < testMap.Width; x++)
{
_testMap[i++] = testMap.GetPixel(x, y).R / 255.0f;
}
}
}
var tu = _shader.Sampler(() => _shader.Heightmap);
tu.DesiredFormat = PixelFormat.FLOAT32_RGB;
tu.SetTextureFiltering(FilterOptions.Point, FilterOptions.Point, FilterOptions.None);
tu.SetTextureAddressingMode(TextureAddressing.Wrap);
tu.BindingType = TextureBindingType.Vertex;
_shader.SetAuto(() => _shader.ModelViewProjectionMatrix, GpuProgramParameters.AutoConstantType.WorldViewProjMatrix);
//_shader.SetAuto(() => _shader.NormalMatrix, GpuProgramParameters.AutoConstantType.ACT_INVERSE_TRANSPOSE_WORLDVIEW_MATRIX);
_shader.SetAuto(() => _shader.ScaleFactor, GpuProgramParameters.AutoConstantType.Custom, 0);
_shader.SetAuto(() => _shader.FineBlockOrigin, GpuProgramParameters.AutoConstantType.Custom, 1);
Position = new IntFloatVector2(new IntFloat(-_testMapWidth / 4), new IntFloat(-_testMapHeight / 4));
Locations = new PatchLocations(H, M);
var scale = Scale;
var scaleInt = 1;
for (var i = 0; i < Levels; i++)
{
_levels[i] = new ClipmapLevel(scale, scaleInt, this);
var level = _levels[i];
tu.SetTextureName(level.Heightmap.Name);
var m = _shader.CloneMaterial("ClipmapLevel" + i);
_levels[i].Material = m;
scale *= 2.0f;
scaleInt *= 2;
}
UpdatePosition();
Reset();
_initialized = true;
}
