public Voxel3dTextureWriter(int gridsizeX, int gridsizeY, int gridsizeZ, Vector3 boxsize, Vector3 staticPosition)
{
GridSizeX = gridsizeX;
GridSizeY = gridsizeY;
GridSizeZ = gridsizeZ;
MapPosition = staticPosition;
BoxSize = boxsize;
TextureResolverShader = new ComputeShader("Texture3DResolve.compute.glsl");
//TextureResolverNormalShader = new ComputeShader("Texture3DResolveNormal.compute.glsl");
TextureMipmapShader = new ComputeShader("Texture3DMipmap.compute.glsl");
TextureRed = new Texture3D(gridsizeX, gridsizeY, gridsizeZ);
TextureGreen = new Texture3D(gridsizeX, gridsizeY, gridsizeZ);
TextureBlue = new Texture3D(gridsizeX, gridsizeY, gridsizeZ);
/*
* TextureNormalX = new Texture3D(gridsize, gridsize, gridsize)
* {
* ColorInternalFormat = PixelInternalFormat.R32i,
* ColorPixelFormat = PixelFormat.RedInteger,
* ColorPixelType = PixelType.Int
* };
* TextureNormalY = new Texture3D(gridsize, gridsize, gridsize)
* {
* ColorInternalFormat = PixelInternalFormat.R32i,
* ColorPixelFormat = PixelFormat.RedInteger,
* ColorPixelType = PixelType.Int
* };
* TextureNormalZ = new Texture3D(gridsize, gridsize, gridsize)
* {
* ColorInternalFormat = PixelInternalFormat.R32i,
* ColorPixelFormat = PixelFormat.RedInteger,
* ColorPixelType = PixelType.Int
* };
* TextureNormalResolved = new Texture3D(gridsize, gridsize, gridsize)
* {
* ColorInternalFormat = PixelInternalFormat.Rgba16f,
* ColorPixelFormat = PixelFormat.Rgba,
* ColorPixelType = PixelType.HalfFloat
* };
*/
TextureCount = new Texture3D(gridsizeX, gridsizeY, gridsizeZ);
/*
* TEXTURE LAYOUT:
* 1 - Initial - RES / 1 - 256
* 2 - Blurred 2 PX 1 res / 2 128
* 3 - Blurred 2 PX 2 res / 2 64
* 4 - Blurred 2 PX 3 res / 2 32
*/
TextureResolvedMipMaps = new List <Texture3D>();
int szx = gridsizeX;
int szy = gridsizeY;
int szz = gridsizeZ;
//while(szx > 8 && szy > 8 && szz > 8)
for (int i = 0; i < 4; i++)
{
TextureResolvedMipMaps.Add(new Texture3D(szx, szy, szz)
{
ColorInternalFormat = PixelInternalFormat.Rgba16f,
ColorPixelFormat = PixelFormat.Rgba,
ColorPixelType = PixelType.HalfFloat
});
szx = szx / 2;
szy = szy / 2;
szz = szz / 2;
}
FBO = new Framebuffer(512, 512, true)
{
};
XForward = Matrix4.LookAt(Vector3.Zero, Vector3.UnitX, Vector3.UnitY).ExtractRotation();
YForward = Matrix4.LookAt(Vector3.Zero, Vector3.UnitY, Vector3.UnitZ).ExtractRotation();
ZForward = Matrix4.LookAt(Vector3.Zero, Vector3.UnitZ, Vector3.UnitY).ExtractRotation();
Vector3 boxhalf = boxsize * 0.5f;
RenderingCameraX = new Camera();
RenderingCameraX.UpdatePerspectiveOrtho(-boxhalf.X, boxhalf.X, -boxhalf.Y, boxhalf.Y, boxhalf.Z, -boxhalf.Z);
RenderingCameraX.SetOrientation(XForward);
RenderingCameraX.SetPosition(MapPosition);
RenderingCameraX.Update();
RenderingCameraY = new Camera();
RenderingCameraY.UpdatePerspectiveOrtho(-boxhalf.X, boxhalf.X, -boxhalf.Z, boxhalf.Z, boxhalf.Y, -boxhalf.Y);
RenderingCameraY.SetOrientation(YForward);
RenderingCameraY.SetPosition(MapPosition);
RenderingCameraY.Update();
RenderingCameraZ = new Camera();
RenderingCameraZ.UpdatePerspectiveOrtho(-boxhalf.X, boxhalf.X, -boxhalf.Y, boxhalf.Y, boxhalf.Z, -boxhalf.Z);
RenderingCameraZ.SetOrientation(ZForward);
RenderingCameraZ.SetPosition(MapPosition);
RenderingCameraZ.Update();
Shader = new ShaderPool.ShaderPack("Voxel3dTextureWriter.fragment.glsl");
}
public void Map()
{
var lastCamera = Camera.Current;
var lights = Game.World.Scene.GetLights();
var light = lights[0];
for (int i = 0; i < Shader.ProgramsList.Length; i++)
{
var s = Shader.ProgramsList[i];
if (!s.Compiled)
{
continue;
}
s.Use();
s.SetUniform("GridSizeX", GridSizeX);
s.SetUniform("GridSizeY", GridSizeY);
s.SetUniform("GridSizeZ", GridSizeZ);
s.SetUniform("BoxSize", BoxSize);
s.SetUniform("MapPosition", -MapPosition);
light.SetUniforms();
light.BindShadowMap(20, 21);
SetUniforms();
BindTexture(TextureUnit.Texture25);
}
TextureRed.Clear();
TextureGreen.Clear();
TextureBlue.Clear();
TextureCount.Clear();
//TextureResolved.Clear();
FBO.Use();
GL.Disable(EnableCap.DepthTest);
GL.Disable(EnableCap.CullFace);
TextureRed.BindImageUnit(6, TextureAccess.ReadWrite, SizedInternalFormat.R32ui);
TextureGreen.BindImageUnit(1, TextureAccess.ReadWrite, SizedInternalFormat.R32ui);
TextureBlue.BindImageUnit(2, TextureAccess.ReadWrite, SizedInternalFormat.R32ui);
TextureCount.BindImageUnit(3, TextureAccess.ReadWrite, SizedInternalFormat.R32ui);
/*
* TextureNormalX.BindImageUnit(7, TextureAccess.ReadWrite, SizedInternalFormat.R32i);
* TextureNormalY.BindImageUnit(8, TextureAccess.ReadWrite, SizedInternalFormat.R32i);
* TextureNormalZ.BindImageUnit(9, TextureAccess.ReadWrite, SizedInternalFormat.R32i);
*/
// Camera.Current = RenderingCameraX;
// RenderWorld();
Camera.Current = RenderingCameraX;
RenderingCameraX.SetOrientation(XForward);
RenderingCameraX.Update();
RenderingCameraX.Transformation.ClearModifiedFlag();
RenderWorld();
Camera.Current = RenderingCameraY;
RenderingCameraY.SetOrientation(YForward);
RenderingCameraY.Update();
RenderingCameraY.Transformation.ClearModifiedFlag();
RenderWorld();
Camera.Current = RenderingCameraZ;
RenderingCameraZ.SetOrientation(ZForward);
RenderingCameraZ.Update();
RenderingCameraZ.Transformation.ClearModifiedFlag();
RenderWorld();
// Camera.Current = RenderingCameraZ;
// RenderWorld();
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.MemoryBarrier(MemoryBarrierFlags.ShaderImageAccessBarrierBit);
TextureResolvedMipMaps[0].BindImageUnit(4, TextureAccess.WriteOnly, SizedInternalFormat.Rgba16f);
TextureRed.Use(TextureUnit.Texture0);
TextureGreen.Use(TextureUnit.Texture1);
TextureBlue.Use(TextureUnit.Texture2);
TextureCount.Use(TextureUnit.Texture3);
TextureResolverShader.Use();
TextureResolverShader.Dispatch(GridSizeX / 16, GridSizeY / 8, GridSizeZ / 8);
GL.MemoryBarrier(MemoryBarrierFlags.ShaderImageAccessBarrierBit);
/*
* TextureNormalX.Use(TextureUnit.Texture0);
* TextureNormalY.Use(TextureUnit.Texture1);
* TextureNormalZ.Use(TextureUnit.Texture2);
* TextureCount.Use(TextureUnit.Texture3);
* TextureNormalResolved.BindImageUnit(10, TextureAccess.ReadWrite, SizedInternalFormat.Rgba16f);
*
* TextureResolverNormalShader.Use();
* TextureResolverNormalShader.Dispatch(GridSize / 16, GridSize / 8, GridSize / 8);
*/
TextureMipmapShader.Use();
for (int i = 0; i < TextureResolvedMipMaps.Count - 1; i++)
{
TextureResolvedMipMaps[i].Use(TextureUnit.Texture0);
TextureResolvedMipMaps[i + 1].BindImageUnit(4, TextureAccess.WriteOnly, SizedInternalFormat.Rgba16f);
TextureMipmapShader.Dispatch(TextureResolvedMipMaps[i + 1].SizeX / 8, TextureResolvedMipMaps[i + 1].SizeY / 8, TextureResolvedMipMaps[i + 1].SizeZ / 8);
GL.MemoryBarrier(MemoryBarrierFlags.ShaderImageAccessBarrierBit);
}
Camera.Current = lastCamera;
}
