public void BuildMaterialPasses(PageDecalInfo pageInfo)
{
Technique t = FindPageTechnique(pageInfo.Coord);
if (t != null)
{
float pageX = pageInfo.Coord.X * TerrainManager.Instance.PageSize * TerrainManager.oneMeter;
float pageZ = pageInfo.Coord.Z * TerrainManager.Instance.PageSize * TerrainManager.oneMeter;
int availableTexUnits = 0;
int curTexUnit = 0;
int texUnitsPerPass = 8;
Pass p = null;
foreach (DecalElement element in pageInfo.Decals)
{
// if there are no texture units available, allocate a new pass
if (availableTexUnits == 0)
{
p = t.CreatePass();
pageInfo.Passes.Add(p);
p.SetSceneBlending(SceneBlendType.TransparentAlpha);
// TODO: Unclear what should happen here. The new Ogre interface
// supports SetDepthBias(constantBias, slopeBias), but the units are
// different. Ask Jeff.
p.DepthBias = 1;
curTexUnit = 0;
availableTexUnits = texUnitsPerPass;
}
TextureUnitState texUnit = p.CreateTextureUnitState(element.ImageName, 0);
if (curTexUnit == 0)
{
texUnit.SetColorOperation(LayerBlendOperation.Replace);
texUnit.SetAlphaOperation(LayerBlendOperationEx.Source1, LayerBlendSource.Texture, LayerBlendSource.Current, 0, 0, 0);
}
else
{
texUnit.SetColorOperation(LayerBlendOperation.AlphaBlend);
texUnit.SetAlphaOperation(LayerBlendOperationEx.AddSmooth, LayerBlendSource.Texture, LayerBlendSource.Current, 0, 0, 0);
}
texUnit.TextureAddressing = TextureAddressing.Border;
texUnit.TextureBorderColor = new ColorEx(0, 0, 0, 0);
element.UpdateTextureTransform(texUnit, pageX, pageZ);
// bump the counts
curTexUnit++;
availableTexUnits--;
}
}
}
public void FreeMaterialPass(PageDecalInfo pageInfo)
{
Technique t = FindPageTechnique(pageInfo.Coord);
if (t != null)
{
// remove the passes from the material
foreach (Pass p in pageInfo.Passes)
{
t.RemovePass(p);
}
// clear the list of saved passes
pageInfo.Passes.Clear();
}
}
protected PageDecalInfo[,] BuildPageInfos()
{
PageDecalInfo[,] pageInfos = new PageDecalInfo[numPages, numPages];
int pageRadius = numPages >> 1;
int pageStartX = cameraPage.X - pageRadius;
int pageStartZ = cameraPage.Z - pageRadius;
int pageEndX = cameraPage.X + pageRadius;
int pageEndZ = cameraPage.Z + pageRadius;
int pageInfoCount = 0;
foreach (DecalElement element in elements)
{
int startX = Math.Max(element.MinPageCoord.X, pageStartX);
int startZ = Math.Max(element.MinPageCoord.Z, pageStartZ);
int endX = Math.Min(element.MaxPageCoord.X, pageEndX);
int endZ = Math.Min(element.MaxPageCoord.Z, pageEndZ);
if ((startX <= endX) && (startZ <= endZ))
{ // element overlaps the visible pages
for (int z = startZ; z <= endZ; z++)
{
for (int x = startX; x <= endX; x++)
{
PageDecalInfo pageInfo = pageInfos[x - pageStartX, z - pageStartZ];
if (pageInfo == null)
{
// this is the first decal on this page, so make a new page info object
pageInfo = pageInfos[x - pageStartX, z - pageStartZ] = new PageDecalInfo(new PageCoord(x, z));
pageInfoCount++;
}
// add the decal to this page
pageInfo.Decals.Add(element);
}
}
}
}
if (pageInfoCount == 0)
{
// if there are no visible decals, then return null rather than an empty array
pageInfos = null;
}
return(pageInfos);
}
protected PageDecalInfo[,] BuildPageInfos()
{
PageDecalInfo[,] pageInfos = new PageDecalInfo[numPages,numPages];
int pageRadius = numPages >> 1;
int pageStartX = cameraPage.X - pageRadius;
int pageStartZ = cameraPage.Z - pageRadius;
int pageEndX = cameraPage.X + pageRadius;
int pageEndZ = cameraPage.Z + pageRadius;
int pageInfoCount = 0;
foreach (DecalElement element in elements)
{
int startX = Math.Max(element.MinPageCoord.X, pageStartX);
int startZ = Math.Max(element.MinPageCoord.Z, pageStartZ);
int endX = Math.Min(element.MaxPageCoord.X, pageEndX);
int endZ = Math.Min(element.MaxPageCoord.Z, pageEndZ);
if ((startX <= endX) && (startZ <= endZ))
{ // element overlaps the visible pages
for (int z = startZ; z <= endZ; z++)
{
for (int x = startX; x <= endX; x++)
{
PageDecalInfo pageInfo = pageInfos[x - pageStartX, z - pageStartZ];
if ( pageInfo == null )
{
// this is the first decal on this page, so make a new page info object
pageInfo = pageInfos[x - pageStartX, z - pageStartZ] = new PageDecalInfo(new PageCoord(x, z));
pageInfoCount++;
}
// add the decal to this page
pageInfo.Decals.Add(element);
}
}
}
}
if (pageInfoCount == 0)
{
// if there are no visible decals, then return null rather than an empty array
pageInfos = null;
}
return pageInfos;
}
public void FreePasses(PageDecalInfo[,] pageInfos)
{
foreach (PageDecalInfo pageInfo in pageInfos)
{
if (pageInfo != null)
{
FreeMaterialPass(pageInfo);
}
}
}
public void FreeMaterialPass(PageDecalInfo pageInfo)
{
Technique t = FindPageTechnique(pageInfo.Coord);
if (t != null)
{
// remove the passes from the material
foreach (Pass p in pageInfo.Passes)
{
t.RemovePass(p);
}
// clear the list of saved passes
pageInfo.Passes.Clear();
}
}
public void BuildPasses(PageDecalInfo[,] pageInfos)
{
foreach (PageDecalInfo pageInfo in pageInfos)
{
if (pageInfo != null)
{
BuildMaterialPasses(pageInfo);
}
}
}
public void BuildMaterialPasses(PageDecalInfo pageInfo)
{
Technique t = FindPageTechnique(pageInfo.Coord);
if (t != null)
{
float pageX = pageInfo.Coord.X * TerrainManager.Instance.PageSize * TerrainManager.oneMeter;
float pageZ = pageInfo.Coord.Z * TerrainManager.Instance.PageSize * TerrainManager.oneMeter;
int availableTexUnits = 0;
int curTexUnit = 0;
int texUnitsPerPass = 8;
Pass p = null;
foreach (DecalElement element in pageInfo.Decals)
{
// if there are no texture units available, allocate a new pass
if (availableTexUnits == 0)
{
p = t.CreatePass();
pageInfo.Passes.Add(p);
p.SetSceneBlending(SceneBlendType.TransparentAlpha);
// TODO: Unclear what should happen here. The new Ogre interface
// supports SetDepthBias(constantBias, slopeBias), but the units are
// different. Ask Jeff.
p.DepthBias = 1;
curTexUnit = 0;
availableTexUnits = texUnitsPerPass;
}
TextureUnitState texUnit = p.CreateTextureUnitState(element.ImageName, 0);
if (curTexUnit == 0)
{
texUnit.SetColorOperation(LayerBlendOperation.Replace);
texUnit.SetAlphaOperation(LayerBlendOperationEx.Source1, LayerBlendSource.Texture, LayerBlendSource.Current, 0, 0, 0);
}
else
{
texUnit.SetColorOperation(LayerBlendOperation.AlphaBlend);
texUnit.SetAlphaOperation(LayerBlendOperationEx.AddSmooth, LayerBlendSource.Texture, LayerBlendSource.Current, 0, 0, 0);
}
texUnit.TextureAddressing = TextureAddressing.Border;
texUnit.TextureBorderColor = new ColorEx(0, 0, 0, 0);
element.UpdateTextureTransform(texUnit, pageX, pageZ);
// bump the counts
curTexUnit++;
availableTexUnits--;
}
}
}