public override void DoCreateTile(int level, int tx, int ty, List <Slot> slot)
{
GPUSlot gpuSlot = slot[0] as GPUSlot;
int tileWidth = gpuSlot.Owner.TileSize;
int tileSize = tileWidth - 4;
GPUSlot parentGpuSlot = null;
Tile parentTile = null;
if (level > 0)
{
parentTile = FindTile(level - 1, tx / 2, ty / 2, false, true);
if (parentTile != null)
{
parentGpuSlot = parentTile.GetSlot(0) as GPUSlot;
}
else
{
throw new MissingTileException("Find parent tile failed");
}
}
m_upsampleMat.SetFloat(m_uniforms.tileWidth, tileWidth);
if (level > 0)
{
RenderTexture tex = parentGpuSlot.Texture;
m_upsampleMat.SetTexture(m_uniforms.coarseLevelSampler, tex);
float dx = (tx % 2) * (tileSize / 2);
float dy = (ty % 2) * (tileSize / 2);
Vector4 coarseLevelOSL = new Vector4((dx + 0.5f) / tex.width, (dy + 0.5f) / tex.height, 1.0f / tex.width, 0.0f);
m_upsampleMat.SetVector(m_uniforms.coarseLevelOSL, coarseLevelOSL);
}
else
{
m_upsampleMat.SetVector(m_uniforms.coarseLevelOSL, new Vector4(-1.0f, -1.0f, -1.0f, -1.0f));
}
if (m_orthoCPUProducer != null && m_orthoCPUProducer.HasTile(level, tx, ty))
{
Tile orthoCPUTile = m_orthoCPUProducer.FindTile(level, tx, ty, false, true);
CPUSlot <byte> orthoCPUSlot = null;
if (orthoCPUTile != null)
{
orthoCPUSlot = orthoCPUTile.GetSlot(0) as CPUSlot <byte>;
}
else
{
throw new MissingTileException("Find orthoCPU tile failed");
}
int c = m_orthoCPUProducer.Channels;
Color32 col = new Color32();
byte[] data = orthoCPUSlot.Data;
for (int x = 0; x < tileWidth; x++)
{
for (int y = 0; y < tileWidth; y++)
{
col.r = data[(x + y * tileWidth) * c];
if (c > 1)
{
col.g = data[(x + y * tileWidth) * c + 1];
}
if (c > 2)
{
col.b = data[(x + y * tileWidth) * c + 2];
}
if (c > 3)
{
col.a = data[(x + y * tileWidth) * c + 3];
}
m_residueTex.SetPixel(x, y, col);
}
}
m_residueTex.Apply();
m_upsampleMat.SetTexture(m_uniforms.residualSampler, m_residueTex);
m_upsampleMat.SetVector(m_uniforms.residualOSH, new Vector4(0.5f / tileWidth, 0.5f / tileWidth, 1.0f / tileWidth, 0.0f));
}
else
{
m_upsampleMat.SetTexture(m_uniforms.residualSampler, null);
m_upsampleMat.SetVector(m_uniforms.residualOSH, new Vector4(-1, -1, -1, -1));
}
float rs = level < m_noiseAmp.Length ? m_noiseAmp[level] : 0.0f;
int noiseL = 0;
int face = TerrainNode.Face;
if (rs != 0.0f)
{
if (face == 1)
{
int offset = 1 << level;
int bottomB = m_noise.Noise2D(tx + 0.5f, ty + offset) > 0.0f ? 1 : 0;
int rightB = (tx == offset - 1 ? m_noise.Noise2D(ty + offset + 0.5f, offset) : m_noise.Noise2D(tx + 1.0f, ty + offset + 0.5f)) > 0.0f ? 2 : 0;
int topB = (ty == offset - 1 ? m_noise.Noise2D((3.0f * offset - 1.0f - tx) + 0.5f, offset) : m_noise.Noise2D(tx + 0.5f, ty + offset + 1.0f)) > 0.0f ? 4 : 0;
int leftB = (tx == 0 ? m_noise.Noise2D((4.0f * offset - 1.0f - ty) + 0.5f, offset) : m_noise.Noise2D(tx, ty + offset + 0.5f)) > 0.0f ? 8 : 0;
noiseL = bottomB + rightB + topB + leftB;
}
else if (face == 6)
{
int offset = 1 << level;
int bottomB = (ty == 0 ? m_noise.Noise2D((3.0f * offset - 1.0f - tx) + 0.5f, 0) : m_noise.Noise2D(tx + 0.5f, ty - offset)) > 0.0f ? 1 : 0;
int rightB = (tx == offset - 1.0f ? m_noise.Noise2D((2.0f * offset - 1.0f - ty) + 0.5f, 0) : m_noise.Noise2D(tx + 1.0f, ty - offset + 0.5f)) > 0.0f ? 2 : 0;
int topB = m_noise.Noise2D(tx + 0.5f, ty - offset + 1.0f) > 0.0f ? 4 : 0;
int leftB = (tx == 0 ? m_noise.Noise2D(3.0f * offset + ty + 0.5f, 0) : m_noise.Noise2D(tx, ty - offset + 0.5f)) > 0.0f ? 8 : 0;
noiseL = bottomB + rightB + topB + leftB;
}
else
{
int offset = (1 << level) * (face - 2);
int bottomB = m_noise.Noise2D(tx + offset + 0.5f, ty) > 0.0f ? 1 : 0;
int rightB = m_noise.Noise2D((tx + offset + 1) % (4 << level), ty + 0.5f) > 0.0f ? 2 : 0;
int topB = m_noise.Noise2D(tx + offset + 0.5f, ty + 1.0f) > 0.0f ? 4 : 0;
int leftB = m_noise.Noise2D(tx + offset, ty + 0.5f) > 0.0f ? 8 : 0;
noiseL = bottomB + rightB + topB + leftB;
}
}
int[] noiseRs = new int[] { 0, 0, 1, 0, 2, 0, 1, 0, 3, 3, 1, 3, 2, 2, 1, 0 };
int noiseR = noiseRs[noiseL];
int[] noiseLs = new int[] { 0, 1, 1, 2, 1, 3, 2, 4, 1, 2, 3, 4, 2, 4, 4, 5 };
noiseL = noiseLs[noiseL];
m_upsampleMat.SetTexture(m_uniforms.noiseSampler, m_noiseTextures[noiseL]);
m_upsampleMat.SetVector(m_uniforms.noiseUVLH, new Vector4(noiseR, (noiseR + 1) % 4, 0.0f, m_hsv ? 1.0f : 0.0f));
if (m_hsv)
{
Vector4 col = m_noiseColor * rs / 255.0f;
col.w *= 2.0f;
m_upsampleMat.SetVector(m_uniforms.noiseColor, col);
}
else
{
Vector4 col = m_noiseColor * rs * 2.0f / 255.0f;
col.w *= 2.0f;
m_upsampleMat.SetVector(m_uniforms.noiseColor, col);
}
m_upsampleMat.SetVector(m_uniforms.noiseRootColor, m_rootNoiseColor);
Graphics.Blit(null, gpuSlot.Texture, m_upsampleMat);
base.DoCreateTile(level, tx, ty, slot);
}
/// <summary>
/// This function creates the elevations data and is called by the CreateTileTask when the task is run by the schedular
/// The functions needs the tiles parent data to have already been created. If it has not the program will abort.
/// </summary>
public override void DoCreateTile(int level, int tx, int ty, List <Slot> slot)
{
GPUSlot gpuSlot = slot[0] as GPUSlot;
int tileWidth = gpuSlot.Owner.TileSize;
int b = Border * 2 + 1;
int tileSize = tileWidth - b;
GPUSlot parentGpuSlot = null;
Tile parentTile = null;
if (level > 0)
{
parentTile = FindTile(level - 1, tx / 2, ty / 2, false, true);
if (parentTile != null)
{
parentGpuSlot = parentTile.GetSlot(0) as GPUSlot;
}
else
{
throw new MissingTileException("Find parent tile failed");
}
}
float rootQuadSize = (float)TerrainNode.Root.Length;
Vector4 tileWSD = new Vector4();
tileWSD.x = tileWidth;
tileWSD.y = rootQuadSize / (1 << level) / tileSize;
tileWSD.z = (tileWidth - b) / (World.GridResolution - 1.0f);
tileWSD.w = 0.0f;
m_upsampleMat.SetVector(m_uniforms.tileWSD, tileWSD);
if (level > 0)
{
RenderTexture tex = parentGpuSlot.Texture;
m_upsampleMat.SetTexture(m_uniforms.coarseLevelSampler, tex);
float dx = (tx % 2) * (tileSize / 2);
float dy = (ty % 2) * (tileSize / 2);
Vector4 coarseLevelOSL = new Vector4(dx / tex.width, dy / tex.height, 1.0f / tex.width, 0.0f);
m_upsampleMat.SetVector(m_uniforms.coarseLevelOSL, coarseLevelOSL);
}
else
{
m_upsampleMat.SetVector(m_uniforms.coarseLevelOSL, new Vector4(-1.0f, -1.0f, -1.0f, -1.0f));
}
if (m_residualProducer != null && m_residualProducer.HasTile(level, tx, ty))
{
Tile residualTile = m_residualProducer.FindTile(level, tx, ty, false, true);
CPUSlot <float> residualSlot = null;
if (residualTile != null)
{
residualSlot = residualTile.GetSlot(0) as CPUSlot <float>;
}
else
{
throw new MissingTileException("Find residual tile failed");
}
//Must clear residual tex before use or terrain will have artifacts at the seams. Not sure why.
RTUtility.ClearColor(m_residualTex, Color.clear);
m_residualBuffer.SetData(residualSlot.Data);
CBUtility.WriteIntoRenderTexture(m_residualTex, 1, m_residualBuffer, World.WriteData);
m_upsampleMat.SetTexture(m_uniforms.residualSampler, m_residualTex);
m_upsampleMat.SetVector(m_uniforms.residualOSH, new Vector4(0.25f / tileWidth, 0.25f / tileWidth, 2.0f / tileWidth, 1.0f));
}
else
{
m_upsampleMat.SetTexture(m_uniforms.residualSampler, null);
m_upsampleMat.SetVector(m_uniforms.residualOSH, new Vector4(0.0f, 0.0f, 1.0f, 0.0f));
}
float rs = level < m_noiseAmp.Length ? m_noiseAmp[level] : 0.0f;
int noiseL = 0;
int face = TerrainNode.Face;
if (rs != 0.0f)
{
if (face == 1)
{
int offset = 1 << level;
int bottomB = m_noise.Noise2D(tx + 0.5f, ty + offset) > 0.0f ? 1 : 0;
int rightB = (tx == offset - 1 ? m_noise.Noise2D(ty + offset + 0.5f, offset) : m_noise.Noise2D(tx + 1.0f, ty + offset + 0.5f)) > 0.0f ? 2 : 0;
int topB = (ty == offset - 1 ? m_noise.Noise2D((3.0f * offset - 1.0f - tx) + 0.5f, offset) : m_noise.Noise2D(tx + 0.5f, ty + offset + 1.0f)) > 0.0f ? 4 : 0;
int leftB = (tx == 0 ? m_noise.Noise2D((4.0f * offset - 1.0f - ty) + 0.5f, offset) : m_noise.Noise2D(tx, ty + offset + 0.5f)) > 0.0f ? 8 : 0;
noiseL = bottomB + rightB + topB + leftB;
}
else if (face == 6)
{
int offset = 1 << level;
int bottomB = (ty == 0 ? m_noise.Noise2D((3.0f * offset - 1.0f - tx) + 0.5f, 0) : m_noise.Noise2D(tx + 0.5f, ty - offset)) > 0.0f ? 1 : 0;
int rightB = (tx == offset - 1.0f ? m_noise.Noise2D((2.0f * offset - 1.0f - ty) + 0.5f, 0) : m_noise.Noise2D(tx + 1.0f, ty - offset + 0.5f)) > 0.0f ? 2 : 0;
int topB = m_noise.Noise2D(tx + 0.5f, ty - offset + 1.0f) > 0.0f ? 4 : 0;
int leftB = (tx == 0 ? m_noise.Noise2D(3.0f * offset + ty + 0.5f, 0) : m_noise.Noise2D(tx, ty - offset + 0.5f)) > 0.0f ? 8 : 0;
noiseL = bottomB + rightB + topB + leftB;
}
else
{
int offset = (1 << level) * (face - 2);
int bottomB = m_noise.Noise2D(tx + offset + 0.5f, ty) > 0.0f ? 1 : 0;
int rightB = m_noise.Noise2D((tx + offset + 1) % (4 << level), ty + 0.5f) > 0.0f ? 2 : 0;
int topB = m_noise.Noise2D(tx + offset + 0.5f, ty + 1.0f) > 0.0f ? 4 : 0;
int leftB = m_noise.Noise2D(tx + offset, ty + 0.5f) > 0.0f ? 8 : 0;
noiseL = bottomB + rightB + topB + leftB;
}
}
int[] noiseRs = new int[] { 0, 0, 1, 0, 2, 0, 1, 0, 3, 3, 1, 3, 2, 2, 1, 0 };
int noiseR = noiseRs[noiseL];
int[] noiseLs = new int[] { 0, 1, 1, 2, 1, 3, 2, 4, 1, 2, 3, 4, 2, 4, 4, 5 };
noiseL = noiseLs[noiseL];
m_upsampleMat.SetTexture(m_uniforms.noiseSampler, m_noiseTextures[noiseL]);
m_upsampleMat.SetVector(m_uniforms.noiseUVLH, new Vector4(noiseR, (noiseR + 1) % 4, 0, rs));
Graphics.Blit(null, gpuSlot.Texture, m_upsampleMat);
base.DoCreateTile(level, tx, ty, slot);
}