public void CreateDrawData()
{
if (m_Material == null)
{
return;
}
if (m_NumResults == 0)
{
return;
}
// only add if anything in this decal set is visible.
AddToTextureList(ref instance.m_TextureList);
int instanceCount = 0;
int batchCount = 0;
Matrix4x4[] decalToWorldBatch = null;
Matrix4x4[] normalToWorldBatch = null;
AssignCurrentBatches(ref decalToWorldBatch, ref normalToWorldBatch, batchCount);
Vector3 cameraPos = instance.CurrentCamera.transform.position;
Matrix4x4 worldToView = LightLoop.WorldToCamera(instance.CurrentCamera);
for (int resultIndex = 0; resultIndex < m_NumResults; resultIndex++)
{
int decalIndex = m_ResultIndices[resultIndex];
// do additional culling based on individual decal draw distances
float distanceToDecal = (cameraPos - m_BoundingSpheres[decalIndex].position).magnitude;
float cullDistance = m_CachedDrawDistances[decalIndex].x + m_BoundingSpheres[decalIndex].radius;
if (distanceToDecal < cullDistance)
{
// d-buffer data
decalToWorldBatch[instanceCount] = m_CachedDecalToWorld[decalIndex];
normalToWorldBatch[instanceCount] = m_CachedNormalToWorld[decalIndex];
float fadeFactor = Mathf.Clamp((cullDistance - distanceToDecal) / (cullDistance * (1.0f - m_CachedDrawDistances[decalIndex].y)), 0.0f, 1.0f);
normalToWorldBatch[instanceCount].m03 = fadeFactor * m_Blend; // vector3 rotation matrix so bottom row and last column can be used for other data to save space
normalToWorldBatch[instanceCount].SetRow(3, m_CachedUVScaleBias[decalIndex]);
// clustered forward data
m_DecalDatas[m_DecalDatasCount].worldToDecal = decalToWorldBatch[instanceCount].inverse;
m_DecalDatas[m_DecalDatasCount].normalToWorld = normalToWorldBatch[instanceCount];
m_DecalDatas[m_DecalDatasCount].diffuseScaleBias = m_Diffuse.m_ScaleBias;
m_DecalDatas[m_DecalDatasCount].normalScaleBias = m_Normal.m_ScaleBias;
m_DecalDatas[m_DecalDatasCount].maskScaleBias = m_Mask.m_ScaleBias;
GetDecalVolumeDataAndBound(decalToWorldBatch[instanceCount], worldToView);
m_DecalDatasCount++;
instanceCount++;
if (instanceCount == kDrawIndexedBatchSize)
{
instanceCount = 0;
batchCount++;
AssignCurrentBatches(ref decalToWorldBatch, ref normalToWorldBatch, batchCount);
}
}
}
}
public void CreateDrawData()
{
int instanceCount = 0;
int batchCount = 0;
Matrix4x4[] decalToWorldBatch = null;
Matrix4x4[] normalToWorldBatch = null;
bool anyAffectTransparency = false;
AssignCurrentBatches(ref decalToWorldBatch, ref normalToWorldBatch, batchCount);
Vector3 cameraPos = instance.CurrentCamera.transform.position;
Matrix4x4 worldToView = LightLoop.WorldToCamera(instance.CurrentCamera);
bool perChannelMask = instance.perChannelMask;
for (int resultIndex = 0; resultIndex < m_NumResults; resultIndex++)
{
int decalIndex = m_ResultIndices[resultIndex];
// do additional culling based on individual decal draw distances
float distanceToDecal = (cameraPos - m_BoundingSpheres[decalIndex].position).magnitude;
float cullDistance = m_CachedDrawDistances[decalIndex].x + m_BoundingSpheres[decalIndex].radius;
if (distanceToDecal < cullDistance)
{
// d-buffer data
decalToWorldBatch[instanceCount] = m_CachedDecalToWorld[decalIndex];
normalToWorldBatch[instanceCount] = m_CachedNormalToWorld[decalIndex];
float fadeFactor = Mathf.Clamp((cullDistance - distanceToDecal) / (cullDistance * (1.0f - m_CachedDrawDistances[decalIndex].y)), 0.0f, 1.0f);
normalToWorldBatch[instanceCount].m03 = fadeFactor * m_Blend; // vector3 rotation matrix so bottom row and last column can be used for other data to save space
normalToWorldBatch[instanceCount].m13 = m_AlbedoContribution;
normalToWorldBatch[instanceCount].SetRow(3, m_CachedUVScaleBias[decalIndex]);
// clustered forward data
if (m_CachedAffectsTransparency[decalIndex])
{
m_DecalDatas[m_DecalDatasCount].worldToDecal = decalToWorldBatch[instanceCount].inverse;
m_DecalDatas[m_DecalDatasCount].normalToWorld = normalToWorldBatch[instanceCount];
m_DecalDatas[m_DecalDatasCount].baseColor = m_BaseColor;
m_DecalDatas[m_DecalDatasCount].blendParams = m_BlendParams;
if (!perChannelMask)
{
m_DecalDatas[m_DecalDatasCount].blendParams.z = (float)Decal.MaskBlendFlags.Smoothness;
}
// we have not allocated the textures in atlas yet, so only store references to them
m_DiffuseTextureScaleBias[m_DecalDatasCount] = m_Diffuse;
m_NormalTextureScaleBias[m_DecalDatasCount] = m_Normal;
m_MaskTextureScaleBias[m_DecalDatasCount] = m_Mask;
GetDecalVolumeDataAndBound(decalToWorldBatch[instanceCount], worldToView);
m_DecalDatasCount++;
anyAffectTransparency = true;
}
instanceCount++;
if (instanceCount == kDrawIndexedBatchSize)
{
instanceCount = 0;
batchCount++;
AssignCurrentBatches(ref decalToWorldBatch, ref normalToWorldBatch, batchCount);
}
}
}
// only add if any projectors in this decal set affect transparency, doesn't actually allocate textures in the atlas yet, this is because we want all the textures in the list so we can optimize the packing
if (anyAffectTransparency)
{
AddToTextureList(ref instance.m_TextureList);
}
}