public override void UpdateLodData()
{
if (!enabled)
{
return;
}
base.UpdateLodData();
if (_mainLight != OceanRenderer.Instance._primaryLight)
{
if (_mainLight)
{
_mainLight.RemoveCommandBuffer(LightEvent.BeforeScreenspaceMask, BufCopyShadowMap);
BufCopyShadowMap = null;
TextureArrayHelpers.ClearToBlack(_sources);
TextureArrayHelpers.ClearToBlack(_targets);
}
_mainLight = null;
}
if (!OceanRenderer.Instance._primaryLight)
{
if (!Settings._allowNullLight)
{
Debug.LogWarning("Primary light must be specified on OceanRenderer script to enable shadows.", OceanRenderer.Instance);
}
return;
}
if (!_mainLight)
{
if (!StartInitLight())
{
enabled = false;
return;
}
}
if (BufCopyShadowMap == null && s_processData)
{
BufCopyShadowMap = new CommandBuffer();
BufCopyShadowMap.name = "Shadow data";
_mainLight.AddCommandBuffer(LightEvent.BeforeScreenspaceMask, BufCopyShadowMap);
}
else if (!s_processData && BufCopyShadowMap != null)
{
_mainLight.RemoveCommandBuffer(LightEvent.BeforeScreenspaceMask, BufCopyShadowMap);
BufCopyShadowMap = null;
}
if (!s_processData)
{
return;
}
Swap(ref _sources, ref _targets);
BufCopyShadowMap.Clear();
ValidateSourceData();
// clear the shadow collection. it will be overwritten with shadow values IF the shadows render,
// which only happens if there are (nontransparent) shadow receivers around. this is only reliable
// in play mode, so don't do it in edit mode.
#if UNITY_EDITOR
if (UnityEditor.EditorApplication.isPlaying)
#endif
{
TextureArrayHelpers.ClearToBlack(_targets);
}
// Cache the camera for further down.
var camera = OceanRenderer.Instance.ViewCamera;
if (camera == null)
{
// We want to return early after clear.
return;
}
{
// Run shadow update
// It feels like quite a lot could be optimized out of the below. I think the same params are written repeatedly, and probably
// a bunch of them are already available in existing ocean globals.
_renderProperties.Initialise(BufCopyShadowMap, _updateShadowShader, krnl_UpdateShadow);
_renderProperties.SetVector(sp_CamPos, camera.transform.position);
_renderProperties.SetVector(sp_CamForward, camera.transform.forward);
_renderProperties.SetVector(sp_JitterDiameters_CurrentFrameWeights, new Vector4(Settings._jitterDiameterSoft, Settings._jitterDiameterHard, Settings._currentFrameWeightSoft, Settings._currentFrameWeightHard));
_renderProperties.SetMatrix(sp_MainCameraProjectionMatrix, camera.projectionMatrix * camera.worldToCameraMatrix);
_renderProperties.SetFloat(sp_SimDeltaTime, OceanRenderer.Instance.DeltaTimeDynamics);
_renderProperties.SetTexture(GetParamIdSampler(true), (Texture)_sources);
_renderProperties.SetTexture(sp_LD_TexArray_Target, _targets);
_renderProperties.SetBuffer(sp_cascadeDataSrc, OceanRenderer.Instance._bufCascadeDataSrc);
var lt = OceanRenderer.Instance._lodTransform;
for (var lodIdx = lt.LodCount - 1; lodIdx >= 0; lodIdx--)
{
#if UNITY_EDITOR
lt._renderData[lodIdx].Validate(0, SimName);
#endif
_renderProperties.SetVector(sp_CenterPos, lt._renderData[lodIdx]._posSnapped);
var scale = OceanRenderer.Instance.CalcLodScale(lodIdx);
_renderProperties.SetVector(sp_Scale, new Vector3(scale, 1f, scale));
// compute which lod data we are sampling previous frame shadows from. if a scale change has happened this can be any lod up or down the chain.
var srcDataIdx = lodIdx + ScaleDifferencePow2;
srcDataIdx = Mathf.Clamp(srcDataIdx, 0, lt.LodCount - 1);
_renderProperties.SetInt(sp_LD_SliceIndex, lodIdx);
_renderProperties.SetInt(sp_LD_SliceIndex_Source, srcDataIdx);
BufCopyShadowMap.DispatchCompute(_updateShadowShader, krnl_UpdateShadow,
OceanRenderer.Instance.LodDataResolution / THREAD_GROUP_SIZE_X,
OceanRenderer.Instance.LodDataResolution / THREAD_GROUP_SIZE_Y,
1);
}
#if ENABLE_VR && ENABLE_VR_MODULE
// Disable for XR SPI otherwise input will not have correct world position.
if (XRSettings.enabled && XRSettings.stereoRenderingMode == XRSettings.StereoRenderingMode.SinglePassInstanced)
{
BufCopyShadowMap.DisableShaderKeyword("STEREO_INSTANCING_ON");
}
#endif
// Process registered inputs.
for (var lodIdx = lt.LodCount - 1; lodIdx >= 0; lodIdx--)
{
BufCopyShadowMap.SetRenderTarget(_targets, _targets.depthBuffer, 0, CubemapFace.Unknown, lodIdx);
SubmitDraws(lodIdx, BufCopyShadowMap);
}
#if ENABLE_VR && ENABLE_VR_MODULE
// Restore XR SPI as we cannot rely on remaining pipeline to do it for us.
if (XRSettings.enabled && XRSettings.stereoRenderingMode == XRSettings.StereoRenderingMode.SinglePassInstanced)
{
BufCopyShadowMap.EnableShaderKeyword("STEREO_INSTANCING_ON");
}
#endif
}
// Set the target texture as to make sure we catch the 'pong' each frame
Shader.SetGlobalTexture(GetParamIdSampler(), _targets);
}
public override void UpdateLodData()
{
if (!enabled)
{
return;
}
base.UpdateLodData();
ClearBufferIfLightChanged();
if (!StartInitLight())
{
enabled = false;
return;
}
if (!s_processData)
{
return;
}
if (BufCopyShadowMap == null)
{
BufCopyShadowMap = new CommandBuffer();
BufCopyShadowMap.name = "Shadow data";
}
if (!s_processData)
{
return;
}
Swap(ref _sources, ref _targets);
BufCopyShadowMap.Clear();
ValidateSourceData();
// clear the shadow collection. it will be overwritten with shadow values IF the shadows render,
// which only happens if there are (nontransparent) shadow receivers around. this is only reliable
// in play mode, so don't do it in edit mode.
#if UNITY_EDITOR
if (UnityEditor.EditorApplication.isPlaying)
#endif
{
TextureArrayHelpers.ClearToBlack(_targets);
}
// Cache the camera for further down.
var camera = OceanRenderer.Instance.ViewCamera;
if (camera == null)
{
// We want to return early after clear.
return;
}
// TODO - this is in SRP, so i can't ifdef it? what is a good plan here - wait for it to be removed completely?
#pragma warning disable 618
using (new ProfilingSample(BufCopyShadowMap, "CrestSampleShadows"))
#pragma warning restore 618
{
var lt = OceanRenderer.Instance._lodTransform;
for (var lodIdx = lt.LodCount - 1; lodIdx >= 0; lodIdx--)
{
#if UNITY_EDITOR
lt._renderData[lodIdx].Validate(0, SimName);
#endif
_renderMaterial[lodIdx].SetVector(sp_CenterPos, lt._renderData[lodIdx]._posSnapped);
var scale = OceanRenderer.Instance.CalcLodScale(lodIdx);
_renderMaterial[lodIdx].SetVector(sp_Scale, new Vector3(scale, 1f, scale));
_renderMaterial[lodIdx].SetVector(sp_JitterDiameters_CurrentFrameWeights, new Vector4(Settings._jitterDiameterSoft, Settings._jitterDiameterHard, Settings._currentFrameWeightSoft, Settings._currentFrameWeightHard));
_renderMaterial[lodIdx].SetMatrix(sp_MainCameraProjectionMatrix, GL.GetGPUProjectionMatrix(camera.projectionMatrix, renderIntoTexture: true) * camera.worldToCameraMatrix);
_renderMaterial[lodIdx].SetFloat(sp_SimDeltaTime, Time.deltaTime);
// compute which lod data we are sampling previous frame shadows from. if a scale change has happened this can be any lod up or down the chain.
var srcDataIdx = lodIdx + ScaleDifferencePow2;
srcDataIdx = Mathf.Clamp(srcDataIdx, 0, lt.LodCount - 1);
_renderMaterial[lodIdx].SetFloat(sp_LD_SliceIndex, lodIdx);
_renderMaterial[lodIdx].SetFloat(sp_LD_SliceIndex_Source, srcDataIdx);
_renderMaterial[lodIdx].SetTexture(GetParamIdSampler(true), _sources);
_renderMaterial[lodIdx].SetBuffer(sp_cascadeDataSrc, OceanRenderer.Instance._bufCascadeDataSrc);
BufCopyShadowMap.Blit(Texture2D.blackTexture, _targets, _renderMaterial[lodIdx].material, -1, lodIdx);
}
// Disable single pass double-wide stereo rendering for these commands since we are rendering to
// rendering texture. Otherwise, it will render double. Single pass instanced is broken here, but that
// appears to be a Unity bug only for the legacy VR system.
if (camera.stereoEnabled && XRSettings.stereoRenderingMode == XRSettings.StereoRenderingMode.SinglePass)
{
BufCopyShadowMap.SetSinglePassStereo(SinglePassStereoMode.None);
BufCopyShadowMap.DisableShaderKeyword("UNITY_SINGLE_PASS_STEREO");
}
// Process registered inputs.
for (var lodIdx = lt.LodCount - 1; lodIdx >= 0; lodIdx--)
{
BufCopyShadowMap.SetRenderTarget(_targets, _targets.depthBuffer, 0, CubemapFace.Unknown, lodIdx);
SubmitDraws(lodIdx, BufCopyShadowMap);
}
// Restore single pass double-wide as we cannot rely on remaining pipeline to do it for us.
if (camera.stereoEnabled && XRSettings.stereoRenderingMode == XRSettings.StereoRenderingMode.SinglePass)
{
BufCopyShadowMap.SetSinglePassStereo(SinglePassStereoMode.SideBySide);
BufCopyShadowMap.EnableShaderKeyword("UNITY_SINGLE_PASS_STEREO");
}
// Set the target texture as to make sure we catch the 'pong' each frame
Shader.SetGlobalTexture(GetParamIdSampler(), _targets);
}
}