unsafe static public bool setMaskAlphaToLayer(BTerrainQuadNode node, UInt32 *mskImg, uint mskImgWidth, uint mskImgHeight, float alphaScalar,
int terrainGridX, int terrainGridZ, char index)
{
bool changed = false;
uint dstImgWidth = BTerrainTexturing.getAlphaTextureWidth();
uint dstImgHeight = BTerrainTexturing.getAlphaTextureWidth();
float vertsToPixelsRatio = BTerrainTexturing.getAlphaTextureWidth() / (float)BTerrainQuadNode.getMaxNodeWidth();
int minxvert = node.getDesc().mMinXVert;
int minzvert = node.getDesc().mMinZVert;
int maxxvert = node.getDesc().mMaxXVert;
int maxzvert = node.getDesc().mMaxZVert;
BTerrainLayerContainer layers = node.mLayerContainer;
int layerIndex = layers.giveLayerIndex(index, BTerrainTexturingLayer.eLayerType.cLayer_Splat);
if (TerrainGlobals.getEditor().mEraseTextureInstead&& layerIndex == 0)
{
return(false);
}
// layers.removeRedundantLayers();//CLM is this still needed?!??!
if (layerIndex == -1)
{
if (TerrainGlobals.getEditor().mEraseTextureInstead) //we're erasing, and the texture doesn't exist..
{
return(false);
}
//i don't exist yet.
newSplatLayerEverywhere(index);
layerIndex = layers.giveLayerIndex(index, BTerrainTexturingLayer.eLayerType.cLayer_Splat);
BTerrainTexturingLayer tLayer = layers.giveLayer(layerIndex);
for (int x = 0; x < BTerrainTexturing.getAlphaTextureWidth(); x++)
{
for (int z = 0; z < BTerrainTexturing.getAlphaTextureWidth(); z++)
{
float curWeight = TerrainGlobals.getTerrain().getSoftSelectionWeight(terrainGridX, terrainGridZ);
if (!BMathLib.compare(curWeight, 0.0f))
{
int cX = (int)((x * vertsToPixelsRatio) + minxvert);
int cZ = (int)((z * vertsToPixelsRatio) + minzvert);
curWeight = BMathLib.Clamp(curWeight, 0, 1);
int dIP = x + ((int)BTerrainTexturing.getAlphaTextureHeight()) * z;
byte alphaMapVal = giveBrushAlphaValue(mskImg, mskImgWidth, mskImgHeight, minxvert, minzvert, maxxvert, maxzvert, cX, cZ, terrainGridX, terrainGridZ);
byte val = (byte)(alphaMapVal * alphaScalar * curWeight);
tLayer.mAlphaLayer[dIP] = val;
}
}
}
changed = true;
}
else
{
BTerrainTexturingLayer tLayer = layers.giveLayer(layerIndex);
//this layer already exists.
//If a pixel exists above me, subtract me from it, rather than adding to me.
for (int x = 0; x < BTerrainTexturing.getAlphaTextureWidth(); x++)
{
for (int z = 0; z < BTerrainTexturing.getAlphaTextureWidth(); z++)
{
//find the closest vert
int cX = (int)((x * vertsToPixelsRatio) + minxvert);
int cZ = (int)((z * vertsToPixelsRatio) + minzvert);
int dIP = x + ((int)BTerrainTexturing.getAlphaTextureHeight()) * z;
float curWeight = TerrainGlobals.getTerrain().getSoftSelectionWeight(terrainGridX, terrainGridZ);
if (!BMathLib.compare(curWeight, 0.0f))
{
changed = true;
curWeight = BMathLib.Clamp(curWeight, 0, 1);
byte alphaMapVal = giveBrushAlphaValue(mskImg, mskImgWidth, mskImgHeight, minxvert, minzvert, maxxvert, maxzvert, cX, cZ, terrainGridX, terrainGridZ);
byte val = (byte)(alphaMapVal * alphaScalar * curWeight);
valToLayerColumn(layers, tLayer, dIP, val, layerIndex);
}
}
}
}
layers.removeBlankLayers();
return(changed);
}
//----------------------------------------------
unsafe static public bool setIndexToMaskedArea(BTerrainQuadNode node, int minxvert, int minzvert, int maxxvert, int maxzvert, char index)
{
bool changed = false;
uint dstImgWidth = BTerrainTexturing.getAlphaTextureWidth();
uint dstImgHeight = BTerrainTexturing.getAlphaTextureWidth();
float vertsToPixelsRatio = BTerrainTexturing.getAlphaTextureWidth() / (float)BTerrainQuadNode.getMaxNodeWidth();
BTerrainLayerContainer layers = node.mLayerContainer;
int layerIndex = layers.giveLayerIndex(index, BTerrainTexturingLayer.eLayerType.cLayer_Splat);
if (TerrainGlobals.getEditor().mEraseTextureInstead&& layerIndex == 0)
{
return(false);
}
//layers.removeRedundantLayers();//CLM is this still needed?!??!
if (layerIndex == -1)
{
if (TerrainGlobals.getEditor().mEraseTextureInstead) //we're erasing, and the texture doesn't exist..
{
return(false);
}
//i don't exist yet.
newSplatLayerEverywhere(index);
layerIndex = layers.giveLayerIndex(index, BTerrainTexturingLayer.eLayerType.cLayer_Splat);
BTerrainTexturingLayer tLayer = layers.giveLayer(layerIndex);
for (int x = 0; x < BTerrainTexturing.getAlphaTextureWidth(); x++)
{
for (int z = 0; z < BTerrainTexturing.getAlphaTextureWidth(); z++)
{
//find the closest vert
int cX = (int)((x * vertsToPixelsRatio) + minxvert);
int cZ = (int)((z * vertsToPixelsRatio) + minzvert);
int vertIndex = (int)(cX * TerrainGlobals.getTerrain().getNumZVerts() + cZ);
float curWeight = 1.0f;
if (Masking.isPointSelected(vertIndex, ref curWeight))
{
curWeight = BMathLib.Clamp(curWeight, 0, 1);
int dIP = x + ((int)BTerrainTexturing.getAlphaTextureHeight()) * z;
byte val = (byte)(curWeight * byte.MaxValue);
tLayer.mAlphaLayer[dIP] = val;
}
}
}
changed = true;
}
else
{
BTerrainTexturingLayer tLayer = layers.giveLayer(layerIndex);
//this layer already exists.
//If a pixel exists above me, subtract me from it, rather than adding to me.
for (int x = 0; x < BTerrainTexturing.getAlphaTextureWidth(); x++)
{
for (int z = 0; z < BTerrainTexturing.getAlphaTextureWidth(); z++)
{
//find the closest vert
int cX = (int)((x * vertsToPixelsRatio) + minxvert);
int cZ = (int)((z * vertsToPixelsRatio) + minzvert);
int vertIndex = (int)(cX * TerrainGlobals.getTerrain().getNumZVerts() + cZ);
float curWeight = 1.0f;
if (Masking.isPointSelected(vertIndex, ref curWeight))
{
changed = true;
int dIP = x + ((int)BTerrainTexturing.getAlphaTextureHeight()) * z;
curWeight = BMathLib.Clamp(curWeight, 0, 1);
byte val = (byte)(curWeight * byte.MaxValue);
valToLayerColumn(layers, tLayer, dIP, val, layerIndex);
}
}
}
}
layers.removeBlankLayers();
return(changed);
}