public override void Render(RenderContext context, DeviceContextProxy deviceContext)
{
if (!NeedRender)
{
modelStruct.HasShadowMap = 0;
modelCB.Upload(deviceContext, ref modelStruct);
return;
}
OnUpdateLightSource?.Invoke(this, new UpdateLightSourceEventArgs(context));
++currentFrame;
currentFrame %= Math.Max(1, UpdateFrequency);
if (!FoundLightSource || currentFrame != 0)
{
return;
}
if (resolutionChanged)
{
RemoveAndDispose(ref viewResource);
viewResource = new ShaderResourceViewProxy(Device, ShadowMapTextureDesc);
viewResource.CreateView(DepthStencilViewDesc);
viewResource.CreateView(ShaderResourceViewDesc);
resolutionChanged = false;
}
deviceContext.ClearDepthStencilView(viewResource, DepthStencilClearFlags.Depth, 1.0f, 0);
var orgFrustum = context.BoundingFrustum;
var frustum = new BoundingFrustum(LightView * LightProjection);
context.BoundingFrustum = frustum;
#if !TEST
deviceContext.SetViewport(0, 0, Width, Height);
deviceContext.SetDepthStencil(viewResource.DepthStencilView);
modelStruct.HasShadowMap = context.RenderHost.IsShadowMapEnabled ? 1 : 0;
modelCB.Upload(deviceContext, ref modelStruct);
for (var i = 0; i < context.RenderHost.PerFrameOpaqueNodes.Count; ++i)
{
//Only support opaque object for throwing shadows.
var core = context.RenderHost.PerFrameOpaqueNodes[i];
if (core.RenderCore.IsThrowingShadow && core.TestViewFrustum(ref frustum))
{
core.RenderShadow(context, deviceContext);
}
}
context.BoundingFrustum = orgFrustum;
context.RenderHost.SetDefaultRenderTargets(false);
context.SharedResource.ShadowView = viewResource;
#endif
}
protected override bool CanRender(RenderContext context)
{
#if TEST
if (base.CanRender(context))
#else
if (base.CanRender(context) && !context.IsShadowPass)
#endif
{
OnUpdateLightSource?.Invoke(this, new UpdateLightSourceEventArgs(context));
++currentFrame;
currentFrame %= Math.Max(1, UpdateFrequency);
return(FoundLightSource && currentFrame == 0);
}
else
{
return(false);
}
}
