public void ensureProperLayerOrdering()
{
ensureProperNumberLayers();
int numSplatLayers = TerrainGlobals.getTexturing().getActiveTextureCount();
//create N floatN vectors
floatN[] layerVecs = new floatN[numSplatLayers];
for (uint k = 0; k < numSplatLayers; k++)
{
layerVecs[k] = new floatN((uint)numSplatLayers);
layerVecs[k][k] = 1;
}
//now, calculate a VContrib vector for the current layering.
floatN vContrib = layerVecs[0].Clone();//start with 100% base layer
for (uint k = 1; k < numSplatLayers; k++)
{
byte b = mLayers[(int)k].mAlphaContrib;
int lIdx = mLayers[(int)k].mActiveTextureIndex;
float alpha = ((float)b) / 255.0f;
vContrib = (
(layerVecs[lIdx] * alpha) + (vContrib * (1 - alpha))
);
}
//vContrib now holds at each vector element, the amount the layer is visible to the final pixel
//although it's not sorted in the current layer ordering
//so, calculate the xF for the new layer ordering, and store it in a temp var
floatN vContribSorted = new floatN((uint)numSplatLayers);
//back solve to calculate new alpha value.
vContribSorted[(uint)(numSplatLayers - 1)] = vContrib[(uint)(numSplatLayers - 1)];
for (int k = (numSplatLayers - 2); k >= 0; k--)
{
uint invK = (uint)((numSplatLayers - 2) - k);
float Vc = vContrib[(uint)(k + 1)]; //vContrib for upper layer
float invVc = 1.0f - Vc;
//current layer vContrib
float cVc = vContrib[(uint)(k)];
float xF = invVc == 0 ? 0 : (cVc / invVc);
//move back
vContribSorted[(uint)k] = xF;
}
//now copy back to the unsorted layer index
for (int k = 0; k < numSplatLayers; k++)
{
mLayers[k].mAlphaContrib = (byte)(vContribSorted[(uint)mLayers[k].mActiveTextureIndex] * 255);
}
//ensure layers are sorted
ensureProperSorting();
}
public override bool applyToDstImg(BTerrainQuadNode node, int x, int z, bool selectionMode, bool alternate)
{
BTerrainLayerContainer layers = node.mLayerContainer;
BTerrainActiveDecalContainer decal = TerrainGlobals.getTexturing().getActiveDecal(TerrainGlobals.getTerrainFrontEnd().SelectedDecalIndex);
bool changed = false;
return(changed);
}
public bool init(int decalIndex)
{
mDecalArrayIndex = decalIndex;
BTerrainActiveDecalContainer decal = TerrainGlobals.getTexturing().getActiveDecal(TerrainGlobals.getTerrainFrontEnd().SelectedDecalIndex);
SurfaceDescription sd = decal.mTexChannels[0].mTexture.GetLevelDescription(0);
mDecalRadius = sd.Width / 2;
mDecalWidth = sd.Width;
mDecalHeight = sd.Height;
return(true);
}
public bool mIsSelected; //editor can select a decal instance
public void computeBounds()
{
float vertsToHighResPixelSpaceRatio = BTerrainTexturing.getTextureWidth() / BTerrainQuadNode.cMaxWidth;
BTerrainActiveDecalContainer dcl = TerrainGlobals.getTexturing().getActiveDecal(mActiveDecalIndex);
int h = (int)(dcl.mWidth * (1.0f / mUScale));
int w = (int)(dcl.mHeight * (1.0f / mVScale));
//rotate our bounds
float angleRad = mRotation;// -rotAngle * Math.PI / 180;
float angleCos = (float)Math.Cos(angleRad);
float angleSin = (float)Math.Sin(angleRad);
float halfWidth = w >> 1;
float halfHeight = h >> 1;
float halfNewWidth, halfNewHeight;
int newWidth, newHeight;
// rotate corners
float cx1 = halfWidth * angleCos;
float cy1 = halfWidth * angleSin;
float cx2 = halfWidth * angleCos - halfHeight * angleSin;
float cy2 = halfWidth * angleSin + halfHeight * angleCos;
float cx3 = -halfHeight * angleSin;
float cy3 = halfHeight * angleCos;
float cx4 = 0;
float cy4 = 0;
halfNewWidth = Math.Max(Math.Max(cx1, cx2), Math.Max(cx3, cx4)) - Math.Min(Math.Min(cx1, cx2), Math.Min(cx3, cx4));
halfNewHeight = Math.Max(Math.Max(cy1, cy2), Math.Max(cy3, cy4)) - Math.Min(Math.Min(cy1, cy2), Math.Min(cy3, cy4));
newWidth = (int)(halfNewWidth * 2 + 0.5);
newHeight = (int)(halfNewHeight * 2 + 0.5);
w = newWidth >> 1;
h = newHeight >> 1;
mTileBoundsMin.X = (int)((mTileCenter.X - (w)) / vertsToHighResPixelSpaceRatio);
mTileBoundsMax.X = (int)((mTileCenter.X + (w)) / vertsToHighResPixelSpaceRatio);
mTileBoundsMin.Y = (int)((mTileCenter.Y - (h)) / vertsToHighResPixelSpaceRatio);
mTileBoundsMax.Y = (int)((mTileCenter.Y + (h)) / vertsToHighResPixelSpaceRatio);
}
public int giveLayerIDAtPixel(int x, int y, ref BTerrainTexturingLayer.eLayerType selectedLayerType, bool doSelectDecal)
{
int index = giveLayerIDAtPixelInternal(x, y, mLayers.Count - 1, ref selectedLayerType);
if (index == -1)
{
return(0);
}
if (selectedLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Decal && doSelectDecal)
{
TerrainGlobals.getTexturing().selectActiveDecalInstance(mLayers[index].mActiveTextureIndex);
return(mLayers[index].mActiveTextureIndex);
}
return(index);
/*
* for (int i = mLayers.Count - 1; i >= 0; i--)
* {
*
* if (mLayers[i].mAlphaLayer[x + BTerrainTexturing.getAlphaTextureWidth() * y] != 0)
* {
* if (mLayers[i].mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Splat)
* {
* selectedLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Splat;
* return mLayers[i].mActiveTextureIndex;
* }
* else
* {
* BTerrainDecalInstance dcli = TerrainGlobals.getTexturing().getActiveDecalInstance(mLayers[i].mActiveTextureIndex);
* if (TerrainGlobals.getEditor().mVisTileIntetersectionX <= dcli.mTileBoundsMax.X && TerrainGlobals.getEditor().mVisTileIntetersectionX >= dcli.mTileBoundsMin.X &&
* TerrainGlobals.getEditor().mVisTileIntetersectionZ <= dcli.mTileBoundsMax.Y && TerrainGlobals.getEditor().mVisTileIntetersectionZ >= dcli.mTileBoundsMin.Y)
* {
* if (doSelectDecal)
* TerrainGlobals.getTexturing().selectActiveDecalInstance(mLayers[i].mActiveTextureIndex);
*
* selectedLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Decal;
* return dcli.mActiveDecalIndex;
* }
* }
* }
* }
*
* selectedLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Splat;
* return mLayers[0].mActiveTextureIndex;
* */
}
void ensureProperNumberLayers()
{
bool[] usedTexSlots = new bool[TerrainGlobals.getTexturing().getActiveTextureCount()];
for (int k = 0; k < mLayers.Count; k++)
{
if (mLayers[k].mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Splat)
{
usedTexSlots[mLayers[k].mActiveTextureIndex] = true;
}
}
for (int k = 0; k < usedTexSlots.Length; k++)
{
if (!usedTexSlots[k])
{
newSplatLayer(k);
}
}
}
public void unselectActiveDecalInstance(int activeDecalInstanceIndex)
{
if (activeDecalInstanceIndex < 0 || activeDecalInstanceIndex >= mDecalInstances.Count)
{
return;
}
mDecalInstances[activeDecalInstanceIndex].mIsSelected = false;
List <BTerrainQuadNode> nodes = TerrainGlobals.getTexturing().giveNodesIntersectingDecalInstance(activeDecalInstanceIndex);
for (int i = 0; i < nodes.Count; i++)
{
//nodes[i].getTextureData().free();
for (int lod = 0; lod < Terrain.BTerrainTexturing.cMaxNumLevels; lod++)
{
nodes[i].getTextureData(lod).free();
}
}
nodes.Clear();
nodes = null;
}
public void loadTextures()
{
if (mTexChannels == null)
{
mTexChannels = new TextureHandle[(int)BTerrainTexturing.eTextureChannels.cSplatChannelCount];
}
if (!File.Exists(mFilename))
{
mFilename = EditorCore.CoreGlobals.getWorkPaths().mBlankTextureName;
mTexChannels[0] = BRenderDevice.getTextureManager().getTexture(mFilename); // = TextureLoader.FromFile(BRenderDevice.getDevice(),mFilename);
mTexChannels[1] = BRenderDevice.getTextureManager().getTexture(mFilename); // = TextureLoader.FromFile(BRenderDevice.getDevice(), mFilename);
return;
}
mTexChannels[0] = BRenderDevice.getTextureManager().getTexture(mFilename, TerrainGlobals.getTexturing().activeTextureReloaded);// mTexChannels[0] = TextureLoader.FromFile(BRenderDevice.getDevice(), mFilename);
String ext = Path.GetExtension(mFilename);
string tName = mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_nm" + ext;
mTexChannels[1] = BRenderDevice.getTextureManager().getTexture(tName, TerrainGlobals.getTexturing().activeTextureReloaded);// = TextureLoader.FromFile(BRenderDevice.getDevice(), tName);
//gather our information data for the editor
mMatHasEmissive = File.Exists(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_em" + ext);
mMatHasEnvMask = File.Exists(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_rm" + ext);
mMatHasSpecular = File.Exists(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_sp" + ext);
mMatHasMask = File.Exists(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_mk" + ".bmp");
//calculate our total memory footprint for this texture
m360MemoryFootprint = 0;
m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_df.ddx");
m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_nm.ddx");
m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_em.ddx");
m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_rm.ddx");
m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_sp.ddx");
}
public int giveDecalLayerIDAtPixel(int x, int y, bool doSelect)
{
BTerrainTexturingLayer.eLayerType reftype = BTerrainTexturingLayer.eLayerType.cLayer_Decal;
int index = 0;
int start = mLayers.Count - 1;
while (reftype != BTerrainTexturingLayer.eLayerType.cLayer_Decal)
{
index = giveLayerIDAtPixelInternal(x, y, start, ref reftype);
if (index == -1)
{
return(0);
}
}
if (doSelect)
{
TerrainGlobals.getTexturing().selectActiveDecalInstance(mLayers[index].mActiveTextureIndex);
}
return(index);
}
public void removeLayersWithWrongID()
{
//layer 0 is always a splat
if (mLayers.Count == 1 && mLayers[0].mActiveTextureIndex >= TerrainGlobals.getTexturing().getActiveTextureCount())
{
mLayers[0].mActiveTextureIndex = 0;
return;
}
for (int i = 0; i < mLayers.Count; i++)
{
if ((mLayers[i].mActiveTextureIndex >= TerrainGlobals.getTexturing().getActiveTextureCount() && mLayers[i].mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Splat) ||
(mLayers[i].mActiveTextureIndex >= TerrainGlobals.getTexturing().getActiveDecalInstancesCount() && mLayers[i].mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Decal))
{
clearLayerAlpha(i);
mLayers.RemoveAt(i);
i--;
}
}
fullLayerAlpha(0);
}
private int giveLayerIDAtPixelInternal(int x, int y, int startingLayer, ref BTerrainTexturingLayer.eLayerType selectedLayerType)
{
if (startingLayer > mLayers.Count - 1)
{
startingLayer = mLayers.Count - 1;
}
if (startingLayer < 0)
{
selectedLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Splat;
return(0);
}
for (int i = startingLayer; i >= 0; i--)
{
if (mLayers[i].mAlphaLayer[x + BTerrainTexturing.getAlphaTextureWidth() * y] != 0)
{
if (mLayers[i].mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Splat)
{
selectedLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Splat;
return(mLayers[i].mActiveTextureIndex);
}
else
{
BTerrainDecalInstance dcli = TerrainGlobals.getTexturing().getActiveDecalInstance(mLayers[i].mActiveTextureIndex);
if (TerrainGlobals.getEditor().mVisTileIntetersectionX <= dcli.mTileBoundsMax.X && TerrainGlobals.getEditor().mVisTileIntetersectionX >= dcli.mTileBoundsMin.X &&
TerrainGlobals.getEditor().mVisTileIntetersectionZ <= dcli.mTileBoundsMax.Y && TerrainGlobals.getEditor().mVisTileIntetersectionZ >= dcli.mTileBoundsMin.Y)
{
selectedLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Decal;
return(i);// dcli.mActiveDecalIndex;
}
}
}
}
selectedLayerType = BTerrainTexturingLayer.eLayerType.cLayer_Splat;
return(-1);
}
public void evaluateLOD(Vector3 pt, Vector3 eye, BTerrainLayerContainer layers, BTerrainQuadNode ownerQN)//CLM this is only called on visible nodes
{
mAgePrediction = mAgePrediction | 0x00000001;
int lod = TerrainGlobals.getTexturing().getTextureLODLevel(pt, eye);
if (lod != mTextureLODLevel)// || mCompositeTexture==null || mCompositeTexture.mState==eCompositeTextureState.cCS_Free)
{
mTextureLODLevel = lod;
if (mCompositeTexture != null)
{
mCompositeTexture.free();
mCompositeTexture = null;
}
/*
* mCompositeTexture = TerrainGlobals.getTexturing().getCompositeTexture((int)(BTerrainTexturing.getTextureWidth() >> mTextureLODLevel), (int)(BTerrainTexturing.getTextureHeight() >> mTextureLODLevel));
* if (mCompositeTexture != null)
* {
* mCompositeTexture.mOwnerNode = ownerQN;
* layers.convertToTexturingDataHandle(ref mCompositeTexture);
* }*/
}
}
public static void MaskCurrentTexture(bool bUseTextureFade)
{
int totalNumVerts = TerrainGlobals.getTerrain().getNumXVerts();
int i = -1;
int selTexIndex = TerrainGlobals.getTerrainFrontEnd().SelectedTextureIndex;
BTerrainActiveTextureContainer activeTex = TerrainGlobals.getTexturing().getActiveTexture(TerrainGlobals.getTerrainFrontEnd().SelectedTextureIndex);
if (activeTex.mMatHasMask == false)
{
return;
}
Image img = Image.FromFile(activeTex.getMaskFileName());
if (img == null)
{
return;
}
IMask m = CreateMask(img);
if (m == null)
{
return;
}
img.Dispose();
for (int x = 0; x < totalNumVerts; x++)
{
for (int z = 0; z < totalNumVerts; z++)
{
float baseValue;
float factor = 0;
if (checkBaseWritePermission(x, z, out baseValue) == false)
{
continue;
}
BTerrainTextureVector vec = TerrainGlobals.getEditor().giveTextureDataAtVertex(x, z);
if (vec.containsID(selTexIndex, BTerrainTexturingLayer.eLayerType.cLayer_Splat))
{
int splatindex = vec.giveLayerIndex(selTexIndex, BTerrainTexturingLayer.eLayerType.cLayer_Splat);
float layeralpha = vec.mLayers[splatindex].mAlphaContrib / 255f;
float maskAlpha = 0;
if (layeralpha == 0)
{
continue;
}
maskAlpha = m.GetMaskWeight(((z % 64) * 64) + (x % 64));
//layeralpha = m.GetMaskWeight((( x) * totalNumVerts) + ( z));
if (bUseTextureFade)
{
maskAlpha = maskAlpha * layeralpha;
}
if (maskAlpha == 0)
{
continue;
}
i++;
addSelectedVert(x, z, maskAlpha);
}
}
}
}
public void computeDecalLayerAlphaContrib(int layerIndex, int minXVertex, int minZVertex)
{
if (layerIndex < 0 || layerIndex >= mLayers.Count)
{
return;
}
//grab our decal instance
if (mLayers[layerIndex].mLayerType != BTerrainTexturingLayer.eLayerType.cLayer_Decal)
{
return;
}
float vertsToHighResPixelSpaceRatio = BTerrainTexturing.getTextureWidth() / BTerrainQuadNode.cMaxWidth;
BTerrainDecalInstance dcli = TerrainGlobals.getTexturing().getActiveDecalInstance(mLayers[layerIndex].mActiveTextureIndex);
BTerrainActiveDecalContainer dcl = TerrainGlobals.getTexturing().getActiveDecal(dcli.mActiveDecalIndex);
//scale, rotate, translate us
int h = dcl.mHeight;
int w = dcl.mWidth;
int nW = (int)(w * ((1.0f / dcli.mUScale) / vertsToHighResPixelSpaceRatio));
int nH = (int)(h * ((1.0f / dcli.mVScale) / vertsToHighResPixelSpaceRatio));
int tW = 0;
int tH = 0;
byte[] tImgResized = null;
byte[] tImgRotated = null;
byte[] imgDat = new byte[h * w];
imgDat = ImageManipulation.valueGreyScaleImg(imgDat, w, h, ImageManipulation.eValueOperation.cValue_Set, 255);
tImgResized = ImageManipulation.resizeGreyScaleImg(imgDat, w, h, nW, nH, ImageManipulation.eFilterType.cFilter_Linear);
tImgRotated = ImageManipulation.rotateGreyScaleImg(tImgResized, nW, nH, (float)(-dcli.mRotation * (180.0f / Math.PI)), false, out nW, out nH, ImageManipulation.eFilterType.cFilter_Nearest);
byte[] tImg = tImgRotated;
int startX = (int)((dcli.mTileCenter.X / vertsToHighResPixelSpaceRatio) - (nW >> 1) - minXVertex);
int startY = (int)((dcli.mTileCenter.Y / vertsToHighResPixelSpaceRatio) - (nH >> 1) - minZVertex);
clearLayerAlpha(layerIndex);
//copy back to masking
for (int i = 0; i < nW; i++)
{
for (int j = 0; j < nH; j++)
{
int iS = startX + i;
if (iS < 0 || iS >= BTerrainTexturing.getAlphaTextureWidth())
{
continue;
}
int jS = startY + j;
if (jS < 0 || jS >= BTerrainTexturing.getAlphaTextureHeight())
{
continue;
}
int srcIndex = j + i * nW;
int dstIndex = (int)(iS + BTerrainTexturing.getAlphaTextureHeight() * jS);
byte val = tImg[srcIndex];
mLayers[layerIndex].mAlphaLayer[dstIndex] = val;
}
}
//also, walk any layers that exist above us, and subtract out their values as well
for (int k = layerIndex + 1; k < mLayers.Count; k++)
{
if (mLayers[k].mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Splat)
{
for (int i = 0; i < BTerrainTexturing.getAlphaTextureWidth() * BTerrainTexturing.getAlphaTextureHeight(); i++)
{
mLayers[layerIndex].mAlphaLayer[i] = (byte)BMathLib.Clamp(mLayers[layerIndex].mAlphaLayer[i] - mLayers[k].mAlphaLayer[i], 0, 255);
}
}
}
imgDat = null;
tImgResized = null;
tImgRotated = null;
tImg = null;
}
public void loadTextures()
{
if (mTexChannels == null)
{
mTexChannels = new TextureHandle[(int)BTerrainTexturing.eTextureChannels.cDecalChannelCount + 1];
}
if (!File.Exists(mFilename))
{
mFilename = EditorCore.CoreGlobals.getWorkPaths().mBlankTextureName;
mTexChannels[(int)BTerrainTexturing.eTextureChannels.cAlbedo] = BRenderDevice.getTextureManager().getTexture(mFilename); // = TextureLoader.FromFile(BRenderDevice.getDevice(),mFilename);
mTexChannels[(int)BTerrainTexturing.eTextureChannels.cNormal] = BRenderDevice.getTextureManager().getTexture(mFilename); // = TextureLoader.FromFile(BRenderDevice.getDevice(), mFilename);
mTexChannels[(int)BTerrainTexturing.eTextureChannels.cOpacity] = BRenderDevice.getTextureManager().getTexture(mFilename); // = TextureLoader.FromFile(BRenderDevice.getDevice(), mFilename);
return;
}
mTexChannels[(int)BTerrainTexturing.eTextureChannels.cAlbedo] = BRenderDevice.getTextureManager().getTexture(mFilename, TerrainGlobals.getTexturing().activeDecalReloaded);// mTexChannels[0] = TextureLoader.FromFile(BRenderDevice.getDevice(), mFilename);
String ext = Path.GetExtension(mFilename);
string tName = mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_nm" + ext;
mTexChannels[(int)BTerrainTexturing.eTextureChannels.cNormal] = BRenderDevice.getTextureManager().getTexture(tName, TerrainGlobals.getTexturing().activeDecalReloaded);// = TextureLoader.FromFile(BRenderDevice.getDevice(), tName);
tName = mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_op" + ext;
mTexChannels[(int)BTerrainTexturing.eTextureChannels.cOpacity] = BRenderDevice.getTextureManager().getTexture(tName, TerrainGlobals.getTexturing().activeDecalReloaded);// = TextureLoader.FromFile(BRenderDevice.getDevice(), tName);
SurfaceDescription sd = mTexChannels[(int)BTerrainTexturing.eTextureChannels.cAlbedo].mTexture.GetLevelDescription(0);
mWidth = sd.Width;
mHeight = sd.Height;
//calculate our total memory footprint for this texture
m360MemoryFootprint = 0;
//m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_df.ddx");
//m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_nm.ddx");
//m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_em.ddx");
//m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_rm.ddx");
//m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_sp.ddx");
//m360MemoryFootprint += DDXBridge.give360TextureMemFootprint(mFilename.Substring(0, mFilename.LastIndexOf("_df")) + "_op.ddx");
}
public void ensureProperLayerOrdering()
{
ensureProperNumberLayers();
int numSplatLayers = TerrainGlobals.getTexturing().getActiveTextureCount();
int aWidth = (int)BTerrainTexturing.getAlphaTextureWidth();
int aHeight = (int)BTerrainTexturing.getAlphaTextureHeight();
for (int y = 0; y < aHeight; y++)
{
for (int x = 0; x < aWidth; x++)
{
int aIndex = x + aWidth * y;
//create N floatN vectors
floatN[] layerVecs = new floatN[numSplatLayers];
for (uint k = 0; k < numSplatLayers; k++)
{
layerVecs[k] = new floatN((uint)numSplatLayers);
layerVecs[k][k] = 1;
}
//quick early out test to make sure we're not screwing up by re-normalizing..
floatN nVal = new floatN((uint)numSplatLayers);
for (uint k = 0; k < numSplatLayers; k++)
{
byte b = mLayers[(int)k].mAlphaLayer[aIndex];
float alpha = ((float)b) / 255.0f;
nVal[k] = alpha;
}
float len = nVal.Length();
if (len == 1.0f)
{
continue;
}
//now, calculate a VContrib vector for the current layering.
floatN vContrib = layerVecs[0].Clone();//start with 100% base layer
for (uint k = 1; k < numSplatLayers; k++)
{
byte b = mLayers[(int)k].mAlphaLayer[aIndex];
int lIdx = mLayers[(int)k].mActiveTextureIndex;
float alpha = ((float)b) / 255.0f;
vContrib = (
(layerVecs[lIdx] * alpha) + (vContrib * (1 - alpha))
);
}
//vContrib now holds at each vector element, the amount the layer is visible to the final pixel
//although it's not sorted in the current layer ordering
//so, calculate the xF for the new layer ordering, and store it in a temp var
floatN vContribSorted = new floatN((uint)numSplatLayers);
floatN vContribSortedInv = new floatN((uint)numSplatLayers);
//back solve to calculate new alpha value.
vContribSorted[(uint)(numSplatLayers - 1)] = vContrib[(uint)(numSplatLayers - 1)];
vContribSortedInv[(uint)(numSplatLayers - 1)] = 1 - vContribSorted[(uint)(numSplatLayers - 1)];
for (int k = (numSplatLayers - 2); k >= 0; k--)
{
//multiply the inversions together that we have so far.
float mulSoFar = 1;
for (uint q = (uint)k + 1; q < numSplatLayers; q++)
{
mulSoFar *= vContribSortedInv[q];
}
vContribSorted[(uint)k] = mulSoFar == 0 ? 0 : vContrib[(uint)(k)] / mulSoFar;
vContribSortedInv[(uint)k] = 1 - vContribSorted[(uint)k];
//uint invK = (uint)((numSplatLayers - 2) - k);
//float Vc = vContrib[(uint)(k + 1)]; //vContrib for upper layer
//float invVc = 1.0f - Vc;
////current layer vContrib
//float cVc = vContrib[(uint)(k)];
//float xF = invVc==0?0:(cVc / invVc);
////move back
//vContribSorted[(uint)k] = xF;
}
//now copy back to the unsorted layer index
for (int k = 0; k < numSplatLayers; k++)
{
mLayers[k].mAlphaLayer[aIndex] = (byte)(vContribSorted[(uint)mLayers[k].mActiveTextureIndex] * 255);
}
}
}
//ensure layers are sorted
ensureProperSorting();
}
//CLM USED FOR EXPORT
public unsafe void convertLayersToTexturingDataHandle(BTerrainLayerContainer input, List <Texture> tempAlphaTextures, BTerrainCompositeTexture output, int minXVert, int minZVert, int lod, int channelCount)
{
// BTerrainLayerContainer input = node.mLayerContainer;
// BTerrainCompositeTexture output = node.getTextureData(lod).mCompositeTexture;
Viewport vp = new Viewport();
vp.X = output.mXPixelOffset;
vp.Y = output.mYPixelOffset;
vp.Width = output.mWidth;
vp.Height = output.mWidth;
vp.MinZ = 0;
vp.MaxZ = 1;
BRenderDevice.getDevice().Viewport = vp;
Microsoft.DirectX.Direct3D.Effect shader = TerrainGlobals.getTexturing().mCompositeShader;
shader.Begin(0);
shader.BeginPass(0);
for (int i = 0; i < channelCount; i++)
{
for (int k = 0; k < output.mNumMips; k++)
{
//actually render
Surface compositeTarget = null;
float scale = 1;
try
{
if (output.UsingAtlas == false)
{
compositeTarget = output.mTextures[i].GetSurfaceLevel(k);
BRenderDevice.getDevice().SetRenderTarget(0, compositeTarget);
}
else
{
BTerrainCompositeAtlasTexture atlas = output.mAtlas;
if (atlas.mTextures[i].Disposed == true)
{
atlas.reCreate();
}
scale = atlas.mAtlasScale;
compositeTarget = atlas.mTextures[i].GetSurfaceLevel(k);
BRenderDevice.getDevice().SetRenderTarget(0, compositeTarget);
}
{
BTerrainTexturingLayer.eLayerType lastType = BTerrainTexturingLayer.eLayerType.cLayer_Splat;
float layerInc = 1.0f / (float)(cMaxNumBlends - 1);// (float)input.getNumLayers();
for (int j = 0; j < input.getNumLayers(); j++)
{
// BRenderDevice.getDevice().Clear(ClearFlags.ZBuffer | ClearFlags.Target, unchecked((int)0xFFFF0000), 1.0f, 0);
//compose a splat
shader.SetValue(mShaderContribOverride, 1);
shader.SetValue(mShaderAlphaOverride, 1);
if (input.giveLayer(j).mLayerType == BTerrainTexturingLayer.eLayerType.cLayer_Splat)
{
if (lastType != BTerrainTexturingLayer.eLayerType.cLayer_Splat)
{
shader.EndPass();
shader.BeginPass(0);
lastType = BTerrainTexturingLayer.eLayerType.cLayer_Splat;
}
if (TerrainGlobals.getEditor().getRenderMode() == BTerrainEditor.eEditorRenderMode.cRenderTextureSelectRender)
{
if (TerrainGlobals.getEditor().getMode() != BTerrainEditor.eEditorMode.cModeTexEdit)
{
if (j == 0)
{
shader.SetValue(mShaderContribOverride, 0);
shader.SetValue(mShaderAlphaOverride, 0);
}
else
{
continue;
}
}
else
{
if (input.giveLayer(j).mActiveTextureIndex != TerrainGlobals.getTerrainFrontEnd().SelectedTextureIndex)
{
shader.SetValue(mShaderContribOverride, 0);
}
else
{
shader.SetValue(mShaderContribOverride, 1);
}
shader.SetValue(mShaderAlphaOverride, 0);
}
}
float targetLayer = (float)(j * layerInc);
shader.SetValue(mShaderNumLayersHandle, targetLayer);
shader.SetValue(mShaderAlphaTexArrayHandle, tempAlphaTextures[j]);
//lock in our target texture
BTerrainActiveTextureContainer active = TerrainGlobals.getTexturing().getActiveTexture(input.giveLayer(j).mActiveTextureIndex);
if (active == null)
{
compositeTarget.Dispose();
continue;
}
shader.SetValue(mShaderTexArrayHandle, active.mTexChannels[i].mTexture);
float[] uvs = new float[2];
uvs[0] = active.mUScale;
uvs[1] = active.mVScale;
shader.SetValue(mShaderLayerUV, uvs);
}
else //compose a decal
{
if (lastType != BTerrainTexturingLayer.eLayerType.cLayer_Decal)
{
shader.EndPass();
shader.BeginPass(1);
lastType = BTerrainTexturingLayer.eLayerType.cLayer_Decal;
}
bool doWhite = false;
if (TerrainGlobals.getEditor().getRenderMode() == BTerrainEditor.eEditorRenderMode.cRenderTextureSelectRender)
{
if (TerrainGlobals.getEditor().getMode() == BTerrainEditor.eEditorMode.cModeTexEdit)
{
shader.SetValue(mShaderContribOverride, 0);
}
else if (TerrainGlobals.getEditor().getMode() == BTerrainEditor.eEditorMode.cModeDecalEdit)
{
doWhite = true;
if (TerrainGlobals.getTexturing().getActiveDecalInstance(input.giveLayer(j).mActiveTextureIndex).mActiveDecalIndex != TerrainGlobals.getTerrainFrontEnd().SelectedDecalIndex)
{
shader.SetValue(mShaderContribOverride, 0);
}
else
{
shader.SetValue(mShaderContribOverride, 1);
shader.SetValue(mShaderAlphaOverride, 1);
}
}
}
//Grab our decal instance
BTerrainDecalInstance decal = getActiveDecalInstance(input.giveLayer(j).mActiveTextureIndex);
if (decal == null)
{
compositeTarget.Dispose();
continue;
}
Vector4 selColor = new Vector4(1, 1, 1, 1);
if (decal.mIsSelected)
{
selColor.Y = 0.75f;
selColor.Z = 0.75f;
}
shader.SetValue(mShaderColorOverload, selColor);
//grab the decal we care about
BTerrainActiveDecalContainer active = getActiveDecal(decal.mActiveDecalIndex);
if (active == null)
{
compositeTarget.Dispose();
continue;
}
if (doWhite)
{
shader.SetValue(mShaderAlphaTexArrayHandle, tempAlphaTextures[0]);
}
else
{
shader.SetValue(mShaderAlphaTexArrayHandle, tempAlphaTextures[j]);
}
shader.SetValue(mShaderAlphaTexDecalHandle, active.mTexChannels[(int)BTerrainTexturing.eTextureChannels.cOpacity].mTexture);
shader.SetValue(mShaderTexDecalHandle, active.mTexChannels[i].mTexture);
float[] decalDat = new float[4];
decalDat[0] = decal.mRotation;
//compute our U and V offset
float vertsToHighResPixelSpaceRatio = BTerrainTexturing.getTextureWidth() / BTerrainQuadNode.cMaxWidth;
decalDat[1] = (decal.mTileCenter.X - (minXVert * vertsToHighResPixelSpaceRatio)) / BTerrainTexturing.getTextureWidth();
decalDat[2] = (decal.mTileCenter.Y - (minZVert * vertsToHighResPixelSpaceRatio)) / BTerrainTexturing.getTextureHeight();
decalDat[3] = 0;
shader.SetValue(mShaderLayerDecalData, decalDat);
float[] uvs = new float[2];
uvs[0] = decal.mUScale;
uvs[1] = decal.mVScale;
shader.SetValue(mShaderLayerUV, uvs);
}
shader.CommitChanges();
BRenderDevice.getDevice().Viewport = vp;
BRenderDevice.getDevice().DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, 4, 0, 2);
}
shader.EndPass();
shader.BeginPass(0);
}
}
catch (Direct3DXException e)
{
CoreGlobals.getErrorManager().SendToErrorWarningViewer("An error has occured during the compositing process");
}
finally
{
if (compositeTarget != null)
{
compositeTarget.Dispose();
}
}
}
}
shader.EndPass();
shader.End();
}