/// <summary>
/// Iterates over the position of every node, translating it to a widget position
/// Returns the offsets of the furthest nodes of the edges of the widget
/// To fit the graph in the screen, each offset needs to be as small as possible above 0
///
/// Acquires reader lock
/// </summary>
/// <param name="graphWidgetSize">Size of the rendering widget</param>
/// <param name="graph">Graph being displayed in the widget</param>
/// <param name="isPreview">True if preview widget, false if main</param>
/// <param name="xoffsets">Furthest from the left and right sides of the widget</param>
/// <param name="yoffsets">Furthest from the top and bottom of the widget</param>
/// <param name="zoffsets">Furthest from in front of/behind the camera lens in the Z direction</param>
/// <returns>true if a meaningful result was returned</returns>
public static bool GetWidgetFitOffsets(Vector2 graphWidgetSize, PlottedGraph graph, bool isPreview,
out Vector2 xoffsets, out Vector2 yoffsets, out Vector2 zoffsets)
{
if (GlobalConfig.Settings.Logs.BulkLogging)
{
Logging.RecordLogEvent($"GetWidgetFitOffsets Start {graph.TID} layout", Logging.LogFilterType.BulkDebugLogFile);
}
xoffsets = new Vector2(0, 0);
yoffsets = new Vector2(0, 0);
zoffsets = new Vector2(0, 0);
float zoom = isPreview ? graph.CameraState.PreviewCameraZoom : graph.CameraState.MainCameraZoom;
float aspectRatio = graphWidgetSize.X / graphWidgetSize.Y;
Matrix4x4 translation = isPreview ? graph.CameraState.PreviewCameraTranslation : graph.CameraState.MainCameraTranslation;
Matrix4x4 projection = Matrix4x4.CreatePerspectiveFieldOfView(1.0f, aspectRatio, 1, 80000);
Matrix4x4 worldView = Matrix4x4.CreateFromAxisAngle(Vector3.UnitY, 0) * translation;
Vector2 xlimits = new Vector2(float.MaxValue, float.MinValue);
Vector2 ylimits = new Vector2(float.MaxValue, float.MinValue);
Vector2 zlimits = new Vector2(float.MaxValue, float.MinValue);
Vector2 ev = new Vector2(0, 0);
Vector2 xmin = ev, xmax = ev, ymin = ev, ymax = ev;
float[] positions = graph.LayoutState.DownloadVRAMPositions();
bool result;
if (positions.Length < 4)
{
result = false;
}
else
{
result = true;
for (int idx = 0; idx < positions.Length; idx += 4)
{
float guard = positions[idx + 3];
if (guard is not 1)
{
break;
}
float x = positions[idx];
float y = positions[idx + 1];
float z = positions[idx + 2];
Vector3 worldpos = new Vector3(x, y, z);
Vector2 ndcPos = GraphicsMaths.WorldToNDCPos(worldpos, worldView, projection);
if (ndcPos.X < xlimits.X)
{
xlimits = new Vector2(ndcPos.X, xlimits.Y); xmin = ndcPos;
}
if (ndcPos.X > xlimits.Y)
{
xlimits = new Vector2(xlimits.X, ndcPos.X); xmax = ndcPos;
}
if (ndcPos.Y < ylimits.X)
{
ylimits = new Vector2(ndcPos.Y, ylimits.Y); ymin = ndcPos;
}
if (ndcPos.Y > ylimits.Y)
{
ylimits = new Vector2(ylimits.X, ndcPos.Y); ymax = ndcPos;
}
if (worldpos.Z < zlimits.X)
{
zlimits = new Vector2(worldpos.Z, zlimits.Y);
}
if (worldpos.Z > zlimits.Y)
{
zlimits = new Vector2(zlimits.X, worldpos.Z);
}
}
Vector2 minxS = GraphicsMaths.NdcToScreenPos(xmin, graphWidgetSize);
Vector2 maxxS = GraphicsMaths.NdcToScreenPos(xmax, graphWidgetSize);
Vector2 minyS = GraphicsMaths.NdcToScreenPos(ymin, graphWidgetSize);
Vector2 maxyS = GraphicsMaths.NdcToScreenPos(ymax, graphWidgetSize);
xoffsets = new Vector2(minxS.X, graphWidgetSize.X - maxxS.X);
yoffsets = new Vector2(minyS.Y, graphWidgetSize.Y - maxyS.Y);
zoffsets = new Vector2(zlimits.X - zoom, zlimits.Y - zoom);
}
//Sometimes the position buffer is full of terrible data.
//Seems to just be for the preview graph? Only happens at the start so must have gotten hold of uninitialised data
if (zoffsets.X > 100000000000 || zoffsets.X < -100000000000)
{
if (isPreview)
{
graph.CameraState.PreviewCameraZoom = -60000;
}
else
{
graph.CameraState.MainCameraZoom = -60000;
}
return(false);
}
if (GlobalConfig.Settings.Logs.BulkLogging)
{
Logging.RecordLogEvent($"GetWidgetFitOffsets exit", Logging.LogFilterType.BulkDebugLogFile);
}
return(result);
}
/// <summary>
/// Update the node attributes compute VRAM buffer (alpha, node size, mouseover details)
/// </summary>
/// <param name="cl">Thread-specific CommandList</param>
/// <param name="graph">ProtoGraph being drawn</param>
/// <param name="inputAttributes">Attributes buffer being updated</param>
/// <param name="resources">Shader resources ResourceSet</param>
/// <param name="delta">Time-delta from the last update</param>
/// <param name="mouseoverNodeID">Index of the node the mouse is over</param>
/// <param name="useAnimAttribs">Flag to specify the graph is in animated-alpha mode</param>
private unsafe void RenderNodeAttribs(CommandList cl, PlottedGraph graph, DeviceBuffer inputAttributes,
ResourceSet resources, float delta, int mouseoverNodeID, bool useAnimAttribs)
{
if (GlobalConfig.Settings.Logs.BulkLogging)
{
Logging.RecordLogEvent($"RenderNodeAttribs {this.EngineID}", Logging.LogFilterType.BulkDebugLogFile);
}
AttribShaderParams parms = new AttribShaderParams
{
delta = delta,
hoveredNodeID = mouseoverNodeID,
nodeCount = (uint)Math.Min(graph.RenderedNodeCount(), graph.LayoutState.AttributesVRAM1 !.SizeInBytes / 16),
MinimumAlpha = GlobalConfig.AnimatedFadeMinimumAlpha,
hoverMode = (mouseoverNodeID != -1) ? 1 : 0,
isAnimated = useAnimAttribs ? 1: 0
};
graph.GetActiveNodeIndexes(out List <uint> pulseNodes, out List <uint> lingerNodes, out uint[] deactivatedNodes);
if (GlobalConfig.Settings.Logs.BulkLogging)
{
Logging.RecordLogEvent($"RenderNodeAttribs {this.EngineID} updating attribsbuf {inputAttributes.Name}", Logging.LogFilterType.BulkDebugLogFile);
}
cl.UpdateBuffer(_attribsParamsBuffer, 0, parms);
float currentPulseAlpha = Math.Max(GlobalConfig.AnimatedFadeMinimumAlpha, GraphicsMaths.getPulseAlpha());
//todo - merge contiguous regions to reduce command count
float[] valArray = new float[3];
foreach (uint idx in pulseNodes)
{
if (idx >= graph.RenderedNodeCount())
{
break;
}
if (inputAttributes.SizeInBytes <= idx * 4 * sizeof(float) + (2 * sizeof(float)))
{
break;
}
valArray[0] = GlobalConfig.NodeSize; //start big
valArray[1] = 1.0f; //full alpha
valArray[2] = 1.0f; //pulse
fixed(float *dataPtr = valArray)
{
Debug.Assert((idx * 4 * sizeof(float) + valArray.Length * sizeof(float)) < inputAttributes.SizeInBytes);
cl.UpdateBuffer(inputAttributes, idx * 4 * sizeof(float), (IntPtr)dataPtr, (uint)valArray.Length * sizeof(float));
}
}
//make the active node pulse
if (graph.IsAnimated)
{
uint activeNodeIdx = graph.LastAnimatedVert;
if (!lingerNodes.Contains(activeNodeIdx))
{
valArray[0] = currentPulseAlpha;
fixed(float *dataPtr = valArray)
{
uint nodeAlphaOffset = (activeNodeIdx * 4 * sizeof(float)) + (2 * sizeof(float));
if (nodeAlphaOffset + sizeof(float) <= inputAttributes.SizeInBytes)
{
cl.UpdateBuffer(inputAttributes, nodeAlphaOffset, (IntPtr)dataPtr, sizeof(float));
}
}
}
}
foreach (uint idx in lingerNodes)
{
if (idx >= graph.RenderedNodeCount())
{
break;
}
if (inputAttributes.SizeInBytes <= idx * 4 * sizeof(float) + (2 * sizeof(float)))
{
break;
}
valArray[0] = 2.0f + currentPulseAlpha;
fixed(float *dataPtr = valArray)
{
Debug.Assert((idx * 4 * sizeof(float) + (2 * sizeof(float)) + sizeof(float)) < inputAttributes.SizeInBytes);
cl.UpdateBuffer(inputAttributes, idx * 4 * sizeof(float) + (2 * sizeof(float)), (IntPtr)dataPtr, sizeof(float));
}
}
foreach (uint idx in deactivatedNodes)
{
if (idx >= graph.RenderedNodeCount())
{
break;
}
if (inputAttributes.SizeInBytes <= idx * 4 * sizeof(float) + (2 * sizeof(float)))
{
break;
}
valArray[0] = 0.8f;
fixed(float *dataPtr = valArray)
{
Debug.Assert((idx * 4 * sizeof(float) + (2 * sizeof(float)) + sizeof(float)) < inputAttributes.SizeInBytes);
cl.UpdateBuffer(inputAttributes, idx * 4 * sizeof(float) + (2 * sizeof(float)), (IntPtr)dataPtr, sizeof(float));
}
}
if (graph.HighlightsChanged)
{
ApplyHighlightAttributes(cl, graph, inputAttributes);
}
cl.SetPipeline(_nodeAttribComputePipeline);
cl.SetComputeResourceSet(0, resources);
cl.Dispatch((uint)Math.Ceiling(inputAttributes.SizeInBytes / (256.0 * sizeof(Vector4))), 1, 1);
}