public void SetCamera(Camera camera)
{
if (cameraData == null)
{
cameraData = new GPUInstancerCameraData(camera);
}
else
{
cameraData.SetCamera(camera);
}
if (cameraData.hiZOcclusionGenerator != null)
{
DestroyImmediate(cameraData.hiZOcclusionGenerator);
}
if (isOcclusionCulling)
{
cameraData.hiZOcclusionGenerator = cameraData.mainCamera.GetComponent <GPUInstancerHiZOcclusionGenerator>();
if (cameraData.hiZOcclusionGenerator == null)
{
cameraData.hiZOcclusionGenerator = cameraData.mainCamera.gameObject.AddComponent <GPUInstancerHiZOcclusionGenerator>();
}
cameraData.hiZOcclusionGenerator.Initialize(cameraData.mainCamera);
}
}
public void UpdateBuffers(GPUInstancerCameraData renderingCameraData)
{
if (renderingCameraData != null && renderingCameraData.mainCamera != null && SystemInfo.supportsComputeShaders)
{
if (isOcclusionCulling && renderingCameraData.hiZOcclusionGenerator == null)
{
SetupOcclusionCulling(renderingCameraData);
}
renderingCameraData.CalculateCameraData();
instancingBounds.center = renderingCameraData.mainCamera.transform.position;
if (lastDrawCallFrame != Time.frameCount)
{
lastDrawCallFrame = Time.frameCount;
timeSinceLastDrawCall = Time.realtimeSinceStartup - lastDrawCallTime;
lastDrawCallTime = Time.realtimeSinceStartup;
}
UpdateSpatialPartitioningCells(renderingCameraData);
GPUInstancerUtility.UpdateGPUBuffers(_cameraComputeShader, _cameraComputeKernelIDs, _visibilityComputeShader, _instanceVisibilityComputeKernelIDs, runtimeDataList, renderingCameraData, isFrustumCulling,
isOcclusionCulling, showRenderedAmount, isInitial);
isInitial = false;
if (GPUInstancerUtility.matrixHandlingType == GPUIMatrixHandlingType.CopyToTexture)
{
GPUInstancerUtility.DispatchBufferToTexture(runtimeDataList, _bufferToTextureComputeShader, _bufferToTextureComputeKernelID);
}
GPUInstancerUtility.GPUIDrawMeshInstancedIndirect(runtimeDataList, instancingBounds, renderingCameraData, layerMask, lightProbeDisabled);
}
}
public void SetupOcclusionCulling(GPUInstancerCameraData renderingCameraData)
{
if (renderingCameraData == null || renderingCameraData.mainCamera == null)
{
return;
}
#if UNITY_EDITOR
if (renderingCameraData.mainCamera.name == GPUInstancerEditorSimulator.sceneViewCameraName)
{
return;
}
#endif
if (isOcclusionCulling)
{
if (renderingCameraData.hiZOcclusionGenerator == null)
{
GPUInstancerHiZOcclusionGenerator hiZOcclusionGenerator =
renderingCameraData.mainCamera.GetComponent <GPUInstancerHiZOcclusionGenerator>();
if (hiZOcclusionGenerator == null)
{
hiZOcclusionGenerator = renderingCameraData.mainCamera.gameObject.AddComponent <GPUInstancerHiZOcclusionGenerator>();
}
renderingCameraData.hiZOcclusionGenerator = hiZOcclusionGenerator;
renderingCameraData.hiZOcclusionGenerator.Initialize(renderingCameraData.mainCamera);
}
}
}
public void UpdateBuffers(GPUInstancerCameraData renderingCameraData)
{
if (renderingCameraData != null && renderingCameraData.mainCamera != null && SystemInfo.supportsComputeShaders)
{
if (isOcclusionCulling && renderingCameraData.hiZOcclusionGenerator == null)
{
SetupOcclusionCulling(renderingCameraData);
}
renderingCameraData.CalculateCameraData();
instancingBounds.center = renderingCameraData.mainCamera.transform.position;
if (lastDrawCallFrame != Time.frameCount)
{
lastDrawCallFrame = Time.frameCount;
timeSinceLastDrawCall = Time.realtimeSinceStartup - lastDrawCallTime;
lastDrawCallTime = Time.realtimeSinceStartup;
}
UpdateSpatialPartitioningCells(renderingCameraData);
GPUInstancerUtility.UpdateGPUBuffers(_visibilityComputeShader, _instanceVisibilityComputeKernelIDs, runtimeDataList, renderingCameraData, isFrustumCulling,
isOcclusionCulling, showRenderedAmount, isInitial);
isInitial = false;
#if !UNITY_EDITOR && UNITY_ANDROID
if (SystemInfo.graphicsDeviceType != GraphicsDeviceType.Vulkan)
{
GPUInstancerUtility.DispatchBufferToTexture(runtimeDataList, _bufferToTextureComputeShader, _bufferToTextureComputeKernelID);
}
#endif
GPUInstancerUtility.GPUIDrawMeshInstancedIndirect(runtimeDataList, instancingBounds, renderingCameraData);
}
}
public void SetupOcclusionCulling(GPUInstancerCameraData renderingCameraData)
{
if (renderingCameraData == null || renderingCameraData.mainCamera == null)
{
return;
}
#if UNITY_EDITOR
if (renderingCameraData.mainCamera.name == GPUInstancerEditorSimulator.sceneViewCameraName)
{
return;
}
#endif
// Occlusion Culling with VR is not implemented yet.
#if UNITY_2017_2_OR_NEWER
if (isOcclusionCulling && UnityEngine.XR.XRSettings.enabled)
#else
if (isOcclusionCulling && UnityEngine.VR.VRSettings.enabled)
#endif
{
isOcclusionCulling = false;
Debug.LogWarning("Currently GPU Instancer doesn't support Occlusion Culling for VR. Disabling the Occlusion Culling feature.");
}
if (isOcclusionCulling)
{
if (renderingCameraData.hiZOcclusionGenerator == null)
{
GPUInstancerHiZOcclusionGenerator hiZOcclusionGenerator =
renderingCameraData.mainCamera.GetComponent <GPUInstancerHiZOcclusionGenerator>();
if (hiZOcclusionGenerator == null)
{
hiZOcclusionGenerator = renderingCameraData.mainCamera.gameObject.AddComponent <GPUInstancerHiZOcclusionGenerator>();
}
renderingCameraData.hiZOcclusionGenerator = hiZOcclusionGenerator;
renderingCameraData.mainCamera.depthTextureMode = DepthTextureMode.Depth;
renderingCameraData.hiZOcclusionGenerator.mainCamera = renderingCameraData.mainCamera;
renderingCameraData.hiZOcclusionGenerator.OnPreRender();
}
}
}
public GPUInstancerEditorSimulator(GPUInstancerManager gpuiManager)
{
this.gpuiManager = gpuiManager;
if (sceneViewCameraData == null)
{
sceneViewCameraData = new GPUInstancerCameraData(null);
}
sceneViewCameraData.renderOnlySelectedCamera = true;
if (gpuiManager != null)
{
EditorApplication.update -= FindSceneViewCamera;
EditorApplication.update += FindSceneViewCamera;
#if UNITY_2017_2_OR_NEWER
EditorApplication.pauseStateChanged -= HandlePauseStateChanged;
EditorApplication.pauseStateChanged += HandlePauseStateChanged;
#else
EditorApplication.playmodeStateChanged = HandlePlayModeStateChanged;
#endif
}
}
public virtual void UpdateSpatialPartitioningCells(GPUInstancerCameraData renderingCameraData)
{
}
