protected override void OnRenderUpdate(GPUContext context)
{
base.OnRenderUpdate(context);
var inputTexture = InputTexture;
if (_materialInstance)
{
for (int i = 0; i < _inputParameters.Length; i++)
{
if (!HasInput(i + 2))
{
continue;
}
_inputParameters[i].Value = GetInput(i + 2);
}
context.DrawPostFxMaterial(_materialInstance, Output, inputTexture);
}
else
{
context.Clear(Output, Color.Zero);
}
Return(0, Output);
}
protected override void OnRenderUpdate(GPUContext context)
{
var input = GetInputOrDefault <GPUTexture>(0, null);
if (input)
{
context.Draw(Output, input);
}
else
{
context.Clear(Output, Color.Black);
}
}
private void OnRender(RenderTask task, GPUContext context)
{
lock (_requests)
{
// Check if there is ready next asset to render thumbnail for it
// But don't check whole queue, only a few items
var request = GetReadyRequest(10);
if (request == null)
{
// Disable task
_task.Enabled = false;
return;
}
// Find atlas with an free slot
var atlas = GetValidAtlas();
if (atlas == null)
{
// Error
_task.Enabled = false;
_requests.Clear();
Editor.LogError("Failed to get atlas.");
return;
}
// Wait for atlas being loaded
if (!atlas.IsReady)
{
return;
}
// Setup
_guiRoot.RemoveChildren();
_guiRoot.AccentColor = request.Proxy.AccentColor;
// Call proxy to prepare for thumbnail rendering
request.Proxy.OnThumbnailDrawBegin(request, _guiRoot, context);
_guiRoot.UnlockChildrenRecursive();
// Draw preview
context.Clear(_output.View(), Color.Black);
Render2D.CallDrawing(_guiRoot, context, _output);
// Call proxy and cleanup UI (delete create controls, shared controls should be unlinked during OnThumbnailDrawEnd event)
request.Proxy.OnThumbnailDrawEnd(request, _guiRoot);
_guiRoot.DisposeChildren();
// Copy backbuffer with rendered preview into atlas
SpriteHandle icon = atlas.OccupySlot(_output, request.Item.ID);
if (!icon.IsValid)
{
// Error
_task.Enabled = false;
_requests.Clear();
Editor.LogError("Failed to occupy previews cache atlas slot.");
return;
}
// End
request.FinishRender(ref icon);
RemoveRequest(request);
}
}
