private void OnDecalPropertyChange(DecalProjector decalProjector)
{
if (m_DecalEntityManager.IsValid(decalProjector.decalEntity))
{
m_DecalEntityManager.UpdateDecalEntityData(decalProjector.decalEntity, decalProjector);
}
}
private void OnDecalAdd(DecalProjector decalProjector)
{
if (!m_DecalEntityManager.IsValid(decalProjector.decalEntity))
{
decalProjector.decalEntity = m_DecalEntityManager.CreateDecalEntity(decalProjector);
}
}
public DecalEntity CreateDecalEntity(DecalProjector decalProjector)
{
var material = decalProjector.material;
if (material == null)
{
material = errorMaterial;
}
using (new ProfilingScope(null, m_AddDecalSampler))
{
int chunkIndex = CreateChunkIndex(material);
int entityIndex = entityChunks[chunkIndex].count;
DecalEntity entity = m_DecalEntityIndexer.CreateDecalEntity(entityIndex, chunkIndex);
DecalEntityChunk entityChunk = entityChunks[chunkIndex];
DecalCachedChunk cachedChunk = cachedChunks[chunkIndex];
DecalCulledChunk culledChunk = culledChunks[chunkIndex];
DecalDrawCallChunk drawCallChunk = drawCallChunks[chunkIndex];
// Make sure we have space to add new entity
if (entityChunks[chunkIndex].capacity == entityChunks[chunkIndex].count)
{
using (new ProfilingScope(null, m_ResizeChunks))
{
int newCapacity = entityChunks[chunkIndex].capacity + entityChunks[chunkIndex].capacity;
newCapacity = math.max(8, newCapacity);
entityChunk.SetCapacity(newCapacity);
cachedChunk.SetCapacity(newCapacity);
culledChunk.SetCapacity(newCapacity);
drawCallChunk.SetCapacity(newCapacity);
}
}
entityChunk.Push();
cachedChunk.Push();
culledChunk.Push();
drawCallChunk.Push();
entityChunk.decalProjectors[entityIndex] = decalProjector;
entityChunk.decalEntities[entityIndex] = entity;
entityChunk.transformAccessArray.Add(decalProjector.transform);
UpdateDecalEntityData(entity, decalProjector);
return(entity);
}
}
public void UpdateDecalEntityData(DecalEntity decalEntity, DecalProjector decalProjector)
{
var decalItem = m_DecalEntityIndexer.GetItem(decalEntity);
int chunkIndex = decalItem.chunkIndex;
int arrayIndex = decalItem.arrayIndex;
DecalCachedChunk cachedChunk = cachedChunks[chunkIndex];
cachedChunk.sizeOffsets[arrayIndex] = Matrix4x4.Translate(decalProjector.decalOffset) * Matrix4x4.Scale(decalProjector.decalSize);
float drawDistance = decalProjector.drawDistance;
float fadeScale = decalProjector.fadeScale;
float startAngleFade = decalProjector.startAngleFade;
float endAngleFade = decalProjector.endAngleFade;
Vector4 uvScaleBias = decalProjector.uvScaleBias;
int layerMask = decalProjector.gameObject.layer;
ulong sceneLayerMask = decalProjector.gameObject.sceneCullingMask;
float fadeFactor = decalProjector.fadeFactor;
cachedChunk.drawDistances[arrayIndex] = new Vector2(drawDistance, fadeScale);
// In the shader to remap from cosine -1 to 1 to new range 0..1 (with 0 - 0 degree and 1 - 180 degree)
// we do 1.0 - (dot() * 0.5 + 0.5) => 0.5 * (1 - dot())
// we actually square that to get smoother result => x = (0.5 - 0.5 * dot())^2
// Do a remap in the shader. 1.0 - saturate((x - start) / (end - start))
// After simplification => saturate(a + b * dot() * (dot() - 2.0))
// a = 1.0 - (0.25 - start) / (end - start), y = - 0.25 / (end - start)
if (startAngleFade == 180.0f) // angle fade is disabled
{
cachedChunk.angleFades[arrayIndex] = new Vector2(0.0f, 0.0f);
}
else
{
float angleStart = startAngleFade / 180.0f;
float angleEnd = endAngleFade / 180.0f;
var range = Mathf.Max(0.0001f, angleEnd - angleStart);
cachedChunk.angleFades[arrayIndex] = new Vector2(1.0f - (0.25f - angleStart) / range, -0.25f / range);
}
cachedChunk.uvScaleBias[arrayIndex] = uvScaleBias;
cachedChunk.layerMasks[arrayIndex] = layerMask;
cachedChunk.sceneLayerMasks[arrayIndex] = sceneLayerMask;
cachedChunk.fadeFactors[arrayIndex] = fadeFactor;
cachedChunk.scaleModes[arrayIndex] = decalProjector.scaleMode;
cachedChunk.positions[arrayIndex] = decalProjector.transform.position;
cachedChunk.rotation[arrayIndex] = decalProjector.transform.rotation;
cachedChunk.scales[arrayIndex] = decalProjector.transform.lossyScale;
cachedChunk.dirty[arrayIndex] = true;
}
private void OnDecalMaterialChange(DecalProjector decalProjector)
{
// Decal will end up in new chunk after material change
OnDecalRemove(decalProjector);
OnDecalAdd(decalProjector);
}
private void OnDecalRemove(DecalProjector decalProjector)
{
m_DecalEntityManager.DestroyDecalEntity(decalProjector.decalEntity);
}