// Used for camera stacking where we need to update the parameters per camera
internal void UpdateFromCamera(ref XRPass xrPass, Camera camera)
{
if (xrPass.enabled && display != null)
{
display.GetRenderPass(xrPass.multipassId, out var renderPass);
display.GetCullingParameters(camera, renderPass.cullingPassIndex, out var cullingParams);
// Disable legacy stereo culling path
cullingParams.cullingOptions &= ~CullingOptions.Stereo;
if (xrPass.singlePassEnabled)
{
xrPass = XRPass.Create(renderPass, multipassId: xrPass.multipassId, cullingParams, occlusionMeshMaterial);
for (int renderParamIndex = 0; renderParamIndex < renderPass.GetRenderParameterCount(); ++renderParamIndex)
{
renderPass.GetRenderParameter(camera, renderParamIndex, out var renderParam);
xrPass.AddView(renderPass, renderParam);
}
}
else
{
renderPass.GetRenderParameter(camera, 0, out var renderParam);
xrPass = XRPass.Create(renderPass, multipassId: xrPass.multipassId, cullingParams, occlusionMeshMaterial);
xrPass.AddView(renderPass, renderParam);
}
}
}
void CreateLayoutFromXrSdk(Camera camera, bool singlePassAllowed)
{
bool CanUseSinglePass(XRDisplaySubsystem.XRRenderPass renderPass)
{
if (renderPass.renderTargetDesc.dimension != TextureDimension.Tex2DArray)
{
return(false);
}
if (renderPass.GetRenderParameterCount() != 2 || renderPass.renderTargetDesc.volumeDepth != 2)
{
return(false);
}
renderPass.GetRenderParameter(camera, 0, out var renderParam0);
renderPass.GetRenderParameter(camera, 1, out var renderParam1);
if (renderParam0.textureArraySlice != 0 || renderParam1.textureArraySlice != 1)
{
return(false);
}
if (renderParam0.viewport != renderParam1.viewport)
{
return(false);
}
return(true);
}
for (int renderPassIndex = 0; renderPassIndex < display.GetRenderPassCount(); ++renderPassIndex)
{
display.GetRenderPass(renderPassIndex, out var renderPass);
display.GetCullingParameters(camera, renderPass.cullingPassIndex, out var cullingParams);
// Disable legacy stereo culling path
cullingParams.cullingOptions &= ~CullingOptions.Stereo;
if (singlePassAllowed && CanUseSinglePass(renderPass))
{
var xrPass = XRPass.Create(renderPass, multipassId: framePasses.Count, cullingParams, occlusionMeshMaterial);
for (int renderParamIndex = 0; renderParamIndex < renderPass.GetRenderParameterCount(); ++renderParamIndex)
{
renderPass.GetRenderParameter(camera, renderParamIndex, out var renderParam);
xrPass.AddView(renderPass, renderParam);
}
AddPassToFrame(xrPass);
}
else
{
for (int renderParamIndex = 0; renderParamIndex < renderPass.GetRenderParameterCount(); ++renderParamIndex)
{
renderPass.GetRenderParameter(camera, renderParamIndex, out var renderParam);
var xrPass = XRPass.Create(renderPass, multipassId: framePasses.Count, cullingParams, occlusionMeshMaterial);
xrPass.AddView(renderPass, renderParam);
AddPassToFrame(xrPass);
}
}
}
}
