public void MergeOverlappingDistinctMaterialTexturesAndCalcMaterialSubrects(List <MB_TexSet> distinctMaterialTextures)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("MergeOverlappingDistinctMaterialTexturesAndCalcMaterialSubrects num atlas rects" + distinctMaterialTextures.Count);
}
int numMerged = 0;
// IMPORTANT: Note that the verts stored in the mesh are NOT Normalized UV Coords. They are normalized * [UVTrans]. To get normalized UV
// coords we must multiply them by [invUVTrans]. Need to do this to the verts in the mesh before we do any transforms with them.
// Also check that all textures use same tiling. This is a prerequisite for merging.
// Mark MB3_TexSet that are mergable (allTexturesUseSameMatTiling)
for (int i = 0; i < distinctMaterialTextures.Count; i++)
{
MB_TexSet tx = distinctMaterialTextures[i];
int idxOfFirstNotNull = -1;
bool allAreSame = true;
DRect firstRect = new DRect();
for (int propIdx = 0; propIdx < tx.ts.Length; propIdx++)
{
if (idxOfFirstNotNull != -1)
{
if (!tx.ts[propIdx].isNull && firstRect != tx.ts[propIdx].matTilingRect)
{
allAreSame = false;
}
}
else if (!tx.ts[propIdx].isNull)
{
idxOfFirstNotNull = propIdx;
firstRect = tx.ts[propIdx].matTilingRect;
}
}
if (LOG_LEVEL >= MB2_LogLevel.debug || LOG_LEVEL_TRACE_MERGE_MAT_SUBRECTS == true)
{
if (allAreSame)
{
Debug.LogFormat("TextureSet {0} allTexturesUseSameMatTiling = {1}", i, allAreSame);
}
else
{
Debug.Log(string.Format("Textures in material(s) do not all use the same material tiling. This set of textures will not be considered for merge: {0} ", tx.GetDescription()));
}
}
if (allAreSame)
{
tx.SetAllTexturesUseSameMatTilingTrue();
}
}
for (int i = 0; i < distinctMaterialTextures.Count; i++)
{
MB_TexSet tx = distinctMaterialTextures[i];
for (int matIdx = 0; matIdx < tx.matsAndGOs.mats.Count; matIdx++)
{
if (tx.matsAndGOs.gos.Count > 0)
{
tx.matsAndGOs.mats[matIdx].objName = tx.matsAndGOs.gos[0].name;
}
else if (tx.ts[0] != null)
{
tx.matsAndGOs.mats[matIdx].objName = string.Format("[objWithTx:{0} atlasBlock:{1} matIdx{2}]", tx.ts[0].GetTexName(), i, matIdx);
}
else
{
tx.matsAndGOs.mats[matIdx].objName = string.Format("[objWithTx:{0} atlasBlock:{1} matIdx{2}]", "Unknown", i, matIdx);
}
}
tx.CalcInitialFullSamplingRects(fixOutOfBoundsUVs);
tx.CalcMatAndUVSamplingRects();
}
_HasBeenInitialized = true;
// need to calculate the srcSampleRect for the complete tiling in the atlas
// for each material need to know what the subrect would be in the atlas if material UVRect was 0,0,1,1 and Merged uvRect was full tiling
List <int> MarkedForDeletion = new List <int>();
for (int i = 0; i < distinctMaterialTextures.Count; i++)
{
MB_TexSet tx2 = distinctMaterialTextures[i];
for (int j = i + 1; j < distinctMaterialTextures.Count; j++)
{
MB_TexSet tx1 = distinctMaterialTextures[j];
if (tx1.AllTexturesAreSameForMerge(tx2, _considerNonTextureProperties, resultMaterialTextureBlender))
{
double accumulatedAreaCombined = 0f;
double accumulatedAreaNotCombined = 0f;
DRect encapsulatingRectMerged = new DRect();
int idxOfFirstNotNull = -1;
for (int propIdx = 0; propIdx < tx2.ts.Length; propIdx++)
{
if (!tx2.ts[propIdx].isNull)
{
if (idxOfFirstNotNull == -1)
{
idxOfFirstNotNull = propIdx;
}
}
}
DRect encapsulatingRect1 = new DRect();
DRect encapsulatingRect2 = new DRect();
if (idxOfFirstNotNull != -1)
{
// only in here if all properties use the same tiling so don't need to worry about which propIdx we are dealing with
//Get the rect that encapsulates all material and UV tiling for materials and meshes in tx1
encapsulatingRect1 = tx1.matsAndGOs.mats[0].samplingRectMatAndUVTiling;
for (int matIdx = 1; matIdx < tx1.matsAndGOs.mats.Count; matIdx++)
{
DRect tmpSsamplingRectMatAndUVTilingTx1 = tx1.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling;
encapsulatingRect1 = MB3_UVTransformUtility.GetEncapsulatingRectShifted(ref encapsulatingRect1, ref tmpSsamplingRectMatAndUVTilingTx1);
}
//same for tx2
encapsulatingRect2 = tx2.matsAndGOs.mats[0].samplingRectMatAndUVTiling;
for (int matIdx = 1; matIdx < tx2.matsAndGOs.mats.Count; matIdx++)
{
DRect tmpSsamplingRectMatAndUVTilingTx2 = tx2.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling;
encapsulatingRect2 = MB3_UVTransformUtility.GetEncapsulatingRectShifted(ref encapsulatingRect2, ref tmpSsamplingRectMatAndUVTilingTx2);
}
encapsulatingRectMerged = MB3_UVTransformUtility.GetEncapsulatingRectShifted(ref encapsulatingRect1, ref encapsulatingRect2);
accumulatedAreaCombined += encapsulatingRectMerged.width * encapsulatingRectMerged.height;
accumulatedAreaNotCombined += encapsulatingRect1.width * encapsulatingRect1.height + encapsulatingRect2.width * encapsulatingRect2.height;
}
else
{
encapsulatingRectMerged = new DRect(0f, 0f, 1f, 1f);
}
//the distinct material textures may overlap.
//if the area of these rectangles combined is less than the sum of these areas of these rectangles then merge these distinctMaterialTextures
if (accumulatedAreaCombined < accumulatedAreaNotCombined)
{
// merge tx2 into tx1
numMerged++;
StringBuilder sb = null;
if (LOG_LEVEL >= MB2_LogLevel.info)
{
sb = new StringBuilder();
sb.AppendFormat("About To Merge:\n TextureSet1 {0}\n TextureSet2 {1}\n", tx1.GetDescription(), tx2.GetDescription());
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
for (int matIdx = 0; matIdx < tx1.matsAndGOs.mats.Count; matIdx++)
{
sb.AppendFormat("tx1 Mat {0} matAndMeshUVRect {1} fullSamplingRect {2}\n",
tx1.matsAndGOs.mats[matIdx].mat, tx1.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling, tx1.ts[0].GetEncapsulatingSamplingRect());
}
for (int matIdx = 0; matIdx < tx2.matsAndGOs.mats.Count; matIdx++)
{
sb.AppendFormat("tx2 Mat {0} matAndMeshUVRect {1} fullSamplingRect {2}\n",
tx2.matsAndGOs.mats[matIdx].mat, tx2.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling, tx2.ts[0].GetEncapsulatingSamplingRect());
}
}
}
//copy game objects over
for (int k = 0; k < tx2.matsAndGOs.gos.Count; k++)
{
if (!tx1.matsAndGOs.gos.Contains(tx2.matsAndGOs.gos[k]))
{
tx1.matsAndGOs.gos.Add(tx2.matsAndGOs.gos[k]);
}
}
//copy materials over from tx2 to tx1
for (int matIdx = 0; matIdx < tx2.matsAndGOs.mats.Count; matIdx++)
{
tx1.matsAndGOs.mats.Add(tx2.matsAndGOs.mats[matIdx]);
}
tx1.SetEncapsulatingSamplingRectWhenMergingTexSets(encapsulatingRectMerged);
if (!MarkedForDeletion.Contains(i))
{
MarkedForDeletion.Add(i);
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
sb.AppendFormat("=== After Merge TextureSet {0}\n", tx1.GetDescription());
for (int matIdx = 0; matIdx < tx1.matsAndGOs.mats.Count; matIdx++)
{
sb.AppendFormat("tx1 Mat {0} matAndMeshUVRect {1} fullSamplingRect {2}\n",
tx1.matsAndGOs.mats[matIdx].mat, tx1.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling, tx1.ts[0].GetEncapsulatingSamplingRect());
}
//Integrity check that sampling rects fit into enapsulating rects
if (MB3_MeshBakerRoot.DO_INTEGRITY_CHECKS)
{
if (MB3_MeshBakerRoot.DO_INTEGRITY_CHECKS)
{
DoIntegrityCheckMergedEncapsulatingSamplingRects(distinctMaterialTextures);
}
}
}
Debug.Log(sb.ToString());
}
break;
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(string.Format("Considered merging {0} and {1} but there was not enough overlap. It is more efficient to bake these to separate rectangles.",
tx1.GetDescription() + encapsulatingRect1,
tx2.GetDescription() + encapsulatingRect2));
}
}
}
}
}
//remove distinctMaterialTextures that were merged
for (int j = MarkedForDeletion.Count - 1; j >= 0; j--)
{
distinctMaterialTextures.RemoveAt(MarkedForDeletion[j]);
}
MarkedForDeletion.Clear();
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(string.Format("MergeOverlappingDistinctMaterialTexturesAndCalcMaterialSubrects complete merged {0} now have {1}", numMerged, distinctMaterialTextures.Count));
}
if (MB3_MeshBakerRoot.DO_INTEGRITY_CHECKS)
{
DoIntegrityCheckMergedEncapsulatingSamplingRects(distinctMaterialTextures);
}
}
// This should only be called after regular merge so that rects have been correctly setup.
public void MergeDistinctMaterialTexturesThatWouldExceedMaxAtlasSizeAndCalcMaterialSubrects(List <MB_TexSet> distinctMaterialTextures, int maxAtlasSize)
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log("MergeDistinctMaterialTexturesThatWouldExceedMaxAtlasSizeAndCalcMaterialSubrects num atlas rects" + distinctMaterialTextures.Count);
}
Debug.Assert(_HasBeenInitialized, "MergeOverlappingDistinctMaterialTexturesAndCalcMaterialSubrects must be called before MergeDistinctMaterialTexturesThatWouldExceedMaxAtlasSizeAndCalcMaterialSubrects");
int numMerged = 0;
List <int> MarkedForDeletion = new List <int>();
for (int i = 0; i < distinctMaterialTextures.Count; i++)
{
MB_TexSet tx2 = distinctMaterialTextures[i];
for (int j = i + 1; j < distinctMaterialTextures.Count; j++)
{
MB_TexSet tx1 = distinctMaterialTextures[j];
if (tx1.AllTexturesAreSameForMerge(tx2, _considerNonTextureProperties, resultMaterialTextureBlender))
{
//Check if the size of the rect in the atlas would be greater than max atlas size.
DRect encapsulatingRectMerged = new DRect();
int idxOfFirstNotNull = -1;
for (int propIdx = 0; propIdx < tx2.ts.Length; propIdx++)
{
if (!tx2.ts[propIdx].isNull)
{
if (idxOfFirstNotNull == -1)
{
idxOfFirstNotNull = propIdx;
}
}
}
DRect encapsulatingRect1 = new DRect();
DRect encapsulatingRect2 = new DRect();
if (idxOfFirstNotNull != -1)
{
// only in here if all properties use the same tiling so don't need to worry about which propIdx we are dealing with
//Get the rect that encapsulates all material and UV tiling for materials and meshes in tx1
encapsulatingRect1 = tx1.matsAndGOs.mats[0].samplingRectMatAndUVTiling;
for (int matIdx = 1; matIdx < tx1.matsAndGOs.mats.Count; matIdx++)
{
DRect tmpSsamplingRectMatAndUVTilingTx1 = tx1.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling;
encapsulatingRect1 = MB3_UVTransformUtility.GetEncapsulatingRectShifted(ref encapsulatingRect1, ref tmpSsamplingRectMatAndUVTilingTx1);
}
//same for tx2
encapsulatingRect2 = tx2.matsAndGOs.mats[0].samplingRectMatAndUVTiling;
for (int matIdx = 1; matIdx < tx2.matsAndGOs.mats.Count; matIdx++)
{
DRect tmpSsamplingRectMatAndUVTilingTx2 = tx2.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling;
encapsulatingRect2 = MB3_UVTransformUtility.GetEncapsulatingRectShifted(ref encapsulatingRect2, ref tmpSsamplingRectMatAndUVTilingTx2);
}
encapsulatingRectMerged = MB3_UVTransformUtility.GetEncapsulatingRectShifted(ref encapsulatingRect1, ref encapsulatingRect2);
}
else
{
encapsulatingRectMerged = new DRect(0f, 0f, 1f, 1f);
}
Vector2 maxHeightWidth = tx1.GetMaxRawTextureHeightWidth();
if (encapsulatingRectMerged.width * maxHeightWidth.x > maxAtlasSize ||
encapsulatingRectMerged.height * maxHeightWidth.y > maxAtlasSize)
{
// merge tx2 into tx1
numMerged++;
StringBuilder sb = null;
if (LOG_LEVEL >= MB2_LogLevel.info)
{
sb = new StringBuilder();
sb.AppendFormat("About To Merge:\n TextureSet1 {0}\n TextureSet2 {1}\n", tx1.GetDescription(), tx2.GetDescription());
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
for (int matIdx = 0; matIdx < tx1.matsAndGOs.mats.Count; matIdx++)
{
sb.AppendFormat("tx1 Mat {0} matAndMeshUVRect {1} fullSamplingRect {2}\n",
tx1.matsAndGOs.mats[matIdx].mat, tx1.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling, tx1.ts[0].GetEncapsulatingSamplingRect());
}
for (int matIdx = 0; matIdx < tx2.matsAndGOs.mats.Count; matIdx++)
{
sb.AppendFormat("tx2 Mat {0} matAndMeshUVRect {1} fullSamplingRect {2}\n",
tx2.matsAndGOs.mats[matIdx].mat, tx2.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling, tx2.ts[0].GetEncapsulatingSamplingRect());
}
}
}
//copy game objects over
for (int k = 0; k < tx2.matsAndGOs.gos.Count; k++)
{
if (!tx1.matsAndGOs.gos.Contains(tx2.matsAndGOs.gos[k]))
{
tx1.matsAndGOs.gos.Add(tx2.matsAndGOs.gos[k]);
}
}
//copy materials over from tx2 to tx1
for (int matIdx = 0; matIdx < tx2.matsAndGOs.mats.Count; matIdx++)
{
tx1.matsAndGOs.mats.Add(tx2.matsAndGOs.mats[matIdx]);
}
tx1.SetEncapsulatingSamplingRectWhenMergingTexSets(encapsulatingRectMerged);
if (!MarkedForDeletion.Contains(i))
{
MarkedForDeletion.Add(i);
}
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
if (LOG_LEVEL >= MB2_LogLevel.trace)
{
sb.AppendFormat("=== After Merge TextureSet {0}\n", tx1.GetDescription());
for (int matIdx = 0; matIdx < tx1.matsAndGOs.mats.Count; matIdx++)
{
sb.AppendFormat("tx1 Mat {0} matAndMeshUVRect {1} fullSamplingRect {2}\n",
tx1.matsAndGOs.mats[matIdx].mat, tx1.matsAndGOs.mats[matIdx].samplingRectMatAndUVTiling, tx1.ts[0].GetEncapsulatingSamplingRect());
}
//Integrity check that sampling rects fit into enapsulating rects
if (MB3_MeshBakerRoot.DO_INTEGRITY_CHECKS)
{
if (MB3_MeshBakerRoot.DO_INTEGRITY_CHECKS)
{
DoIntegrityCheckMergedEncapsulatingSamplingRects(distinctMaterialTextures);
}
}
}
Debug.Log(sb.ToString());
}
break;
}
else
{
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(string.Format("Considered merging {0} and {1} but there was not enough overlap. It is more efficient to bake these to separate rectangles.",
tx1.GetDescription() + encapsulatingRect1,
tx2.GetDescription() + encapsulatingRect2));
}
}
}
}
}
//remove distinctMaterialTextures that were merged
for (int j = MarkedForDeletion.Count - 1; j >= 0; j--)
{
distinctMaterialTextures.RemoveAt(MarkedForDeletion[j]);
}
MarkedForDeletion.Clear();
if (LOG_LEVEL >= MB2_LogLevel.debug)
{
Debug.Log(string.Format("MergeDistinctMaterialTexturesThatWouldExceedMaxAtlasSizeAndCalcMaterialSubrects complete merged {0} now have {1}", numMerged, distinctMaterialTextures.Count));
}
if (MB3_MeshBakerRoot.DO_INTEGRITY_CHECKS)
{
DoIntegrityCheckMergedEncapsulatingSamplingRects(distinctMaterialTextures);
}
}