private void BuildForcefieldsBuffer(
out TypedComputeBuffer <SwarmShaderForcefieldState> outPooledForcefieldsBuffer,
out int outActiveForcefieldCount)
{
// Grab the oldest buffer off the queue, and move it back to mark it as the most recently touched buffer.
TypedComputeBuffer <SwarmShaderForcefieldState> targetForcefieldsBuffer = forcefieldsBufferQueue.Dequeue();
forcefieldsBufferQueue.Enqueue(targetForcefieldsBuffer);
swarmForcefieldCollector.CollectForcefields(
transform.localToWorldMatrix,
ref scratchForcefieldStateList);
if (scratchForcefieldStateList.Count > targetForcefieldsBuffer.count)
{
Debug.LogWarningFormat(
"Discarding some forcefields since [{0}] were wanted, but only [{1}] can be passed to the shader.",
scratchForcefieldStateList.Count,
targetForcefieldsBuffer.count);
scratchForcefieldStateList.RemoveRange(
targetForcefieldsBuffer.count,
(scratchForcefieldStateList.Count - targetForcefieldsBuffer.count));
}
targetForcefieldsBuffer.SetData(scratchForcefieldStateList.ToArray());
outPooledForcefieldsBuffer = targetForcefieldsBuffer;
outActiveForcefieldCount = scratchForcefieldStateList.Count;
}
private bool TryAllocateBuffers()
{
bool result = false;
if (!SystemInfo.supportsComputeShaders)
{
Debug.LogError("Compute shaders are not supported on this machine. Is DX11 or later installed?");
}
else
{
if (swarmerModelVerticesBuffer == null)
{
var swarmerModelVertices = new List <SwarmShaderSwarmerModelVertex>();
switch (ModelShape)
{
case ModelShapeType.SimpleFlatTriangle:
{
AppendFlatDoubleSidedTriangleVerticesToModel(
0.0f, // leftSegmentFraction
0.0f, // rightSegmentFraction
ModelColoration,
Matrix4x4.identity,
ref swarmerModelVertices);
break;
}
case ModelShapeType.TriamondWing:
{
AppendTriangularBifrustumVerticesToModel(
0.0f, // leftSegmentFraction
0.0f, // rightSegmentFraction
ModelColoration,
FacetType.Generic, // Front-left (before rotation).
FacetType.Generic, // Front-right (before rotation).
FacetType.Front, // Rear (before rotation).
Matrix4x4.TRS(
new Vector3(
0.0f,
0.0f,
(1.0f - Mathf.Sin(30.0f * Mathf.Deg2Rad))),
Quaternion.AngleAxis(180, Vector3.up),
Vector3.one),
ref swarmerModelVertices);
AppendTriangularBifrustumVerticesToModel(
0.0f, // leftSegmentFraction
1.0f, // rightSegmentFraction
ModelColoration,
FacetType.Generic, // Front-left (before rotation).
FacetType.Front, // Front-right (before rotation).
FacetType.Rear, // Rear (before rotation).
Matrix4x4.TRS(
new Vector3(
(1.0f * Mathf.Cos(30.0f * Mathf.Deg2Rad)),
0.0f,
0.0f),
Quaternion.identity,
Vector3.one),
ref swarmerModelVertices);
AppendTriangularBifrustumVerticesToModel(
1.0f, // leftSegmentFraction
0.0f, // rightSegmentFraction
ModelColoration,
FacetType.Front, // Front-left (before rotation).
FacetType.Generic, // Front-right (before rotation).
FacetType.Rear, // Rear (before rotation).
Matrix4x4.TRS(
new Vector3(
(-1.0f * Mathf.Cos(30.0f * Mathf.Deg2Rad)),
0.0f,
0.0f),
Quaternion.identity,
Vector3.one),
ref swarmerModelVertices);
break;
}
default:
throw new System.ComponentModel.InvalidEnumArgumentException();
}
swarmerModelVerticesBuffer =
new TypedComputeBuffer <SwarmShaderSwarmerModelVertex>(swarmerModelVertices.Count);
swarmerModelVerticesBuffer.SetData(swarmerModelVertices.ToArray());
allocatedModelColorationType = ModelColoration;
allocatedModelShapeType = ModelShape;
}
if (swarmerModelVerticesBuffer != null)
{
result = true;
}
else
{
// Abort any partial-allocations.
ReleaseBuffers();
}
}
if (DebugLoggingEnabled)
{
Debug.LogFormat("Compute buffer allocation attempted. [Success={0}]", result);
}
return(result);
}