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#if HDRP_PRESENT
using System;
using Unity.Entities;
using UnityEngine.Rendering;
using UnityEngine.Rendering.HighDefinition;
namespace UnityEngine.Perception.GroundTruth
{
public abstract class GroundTruthPass : CustomPass, IGroundTruthGenerator
{
public Camera targetCamera;
bool m_IsActivated;
public abstract void SetupMaterialProperties(MaterialPropertyBlock mpb, MeshRenderer meshRenderer, Labeling labeling, uint instanceId);
protected GroundTruthPass(Camera targetCamera)
{
this.targetCamera = targetCamera;
}
protected override void Setup(ScriptableRenderContext renderContext, CommandBuffer cmd)
{
if (targetCamera == null)
throw new InvalidOperationException("targetCamera may not be null");
// If we are forced to activate here we will get zeroes in the first frame.
EnsureActivated();
this.targetColorBuffer = TargetBuffer.Custom;
this.targetDepthBuffer = TargetBuffer.Custom;
}
protected sealed override void Execute(ScriptableRenderContext renderContext, CommandBuffer cmd, HDCamera hdCamera, CullingResults cullingResult)
{
// CustomPasses are executed for each camera. We only want to run for the target camera
if (hdCamera.camera != targetCamera)
return;
ExecutePass(renderContext, cmd, hdCamera, cullingResult);
}
protected abstract void ExecutePass(ScriptableRenderContext renderContext, CommandBuffer cmd, HDCamera hdCamera, CullingResults cullingResult);
protected void EnsureActivated()
{
if (!m_IsActivated)
{
var labelSetupSystem = World.DefaultGameObjectInjectionWorld?.GetExistingSystem<GroundTruthLabelSetupSystem>();
labelSetupSystem?.Activate(this);
m_IsActivated = true;
}
}
protected override void Cleanup()
{
var labelSetupSystem = World.DefaultGameObjectInjectionWorld?.GetExistingSystem<GroundTruthLabelSetupSystem>();
labelSetupSystem?.Deactivate(this);
}
}
}
#endif