void OnPreRenderUnderwaterEffect()
{
// Ensure legacy underwater fog is disabled.
if (_firstRender)
{
OceanRenderer.Instance.OceanMaterial.DisableKeyword("_OLD_UNDERWATER");
}
RenderTextureDescriptor descriptor = XRHelpers.GetRenderTextureDescriptor(_camera);
descriptor.useDynamicScale = _camera.allowDynamicResolution;
// Format must be correct for CopyTexture to work. Hopefully this is good enough.
if (_camera.allowHDR)
{
descriptor.colorFormat = RenderTextureFormat.DefaultHDR;
}
var temporaryColorBuffer = RenderTexture.GetTemporary(descriptor);
UpdatePostProcessMaterial(
_camera,
_underwaterEffectMaterial,
_sphericalHarmonicsData,
_meniscus,
_firstRender || _copyOceanMaterialParamsEachFrame,
_debug._viewOceanMask,
// horizonSafetyMarginMultiplier is added to the horizon, so no-op is zero.
_useHorizonSafetyMarginMultiplier ? _horizonSafetyMarginMultiplier : 0f,
// farPlaneMultiplier is multiplied to the far plane, so no-op is one.
_useHorizonSafetyMarginMultiplier ? 1f : _farPlaneMultiplier,
_filterOceanData,
s_xrPassIndex
);
_underwaterEffectCommandBuffer.Clear();
if (_camera.allowMSAA)
{
// Use blit if MSAA is active because transparents were not included with CopyTexture.
// Not sure if we need an MSAA resolve? Not sure how to do that...
_underwaterEffectCommandBuffer.Blit(BuiltinRenderTextureType.CameraTarget, temporaryColorBuffer);
}
else
{
// Copy the frame buffer as we cannot read/write at the same time. If it causes problems, replace with Blit.
_underwaterEffectCommandBuffer.CopyTexture(BuiltinRenderTextureType.CameraTarget, temporaryColorBuffer);
}
_underwaterEffectMaterial.SetTexture(sp_CrestCameraColorTexture, temporaryColorBuffer);
_underwaterEffectCommandBuffer.SetRenderTarget(BuiltinRenderTextureType.CameraTarget, 0, CubemapFace.Unknown, -1);
_underwaterEffectCommandBuffer.DrawProcedural(Matrix4x4.identity, _underwaterEffectMaterial.material, -1, MeshTopology.Triangles, 3, 1);
RenderTexture.ReleaseTemporary(temporaryColorBuffer);
}
void OnPreRenderOceanMask()
{
RenderTextureDescriptor descriptor = XRHelpers.GetRenderTextureDescriptor(_camera);
descriptor.useDynamicScale = _camera.allowDynamicResolution;
InitialiseMaskTextures(descriptor, ref _maskTexture, ref _depthTexture);
_oceanMaskCommandBuffer.Clear();
// Passing -1 to depth slice binds all slices. Important for XR SPI to work in both eyes.
_oceanMaskCommandBuffer.SetRenderTarget(_maskTexture.colorBuffer, _depthTexture.depthBuffer, mipLevel: 0, CubemapFace.Unknown, depthSlice: -1);
_oceanMaskCommandBuffer.ClearRenderTarget(true, true, Color.white * UNDERWATER_MASK_NO_MASK);
_oceanMaskCommandBuffer.SetGlobalTexture(sp_CrestOceanMaskTexture, _maskTexture.colorBuffer);
_oceanMaskCommandBuffer.SetGlobalTexture(sp_CrestOceanMaskDepthTexture, _depthTexture.depthBuffer);
PopulateOceanMask(
_oceanMaskCommandBuffer,
_camera,
OceanRenderer.Instance.Tiles,
_cameraFrustumPlanes,
_oceanMaskMaterial.material,
_debug._disableOceanMask
);
}