PrtEngine prtEngine = null;
PrtBuffer prtBuffer = null;
//used for the additional bounces
PrtBuffer prtBufferA = null;
PrtBuffer prtBufferB = null;
prtEngine = new PrtEngine(mesh, adj, false, null);
//I use a feedback dialog which displays some info
if (simSettings.bDisplayFeedback)
{
DlgSimRunning dlgSimRunning = new DlgSimRunning();
dlgSimRunning.Show();
dlgSimRunning.Update();
dlgSimRunning.Cursor = Cursors.WaitCursor;
double dTime = Utilities.FrameworkTimer.GetElapsedTime();
prtEngine.SetCallback(dlgSimRunning.PercentDone, 0.01f);
dlgSimRunning.richTextBox1.AppendText("Setting Callback function ..........OK\n");
dlgSimRunning.Update();
prtEngine.SetSamplingInfo(simSettings.numberOfRays, false, true, false, 0.0f);
dlgSimRunning.richTextBox1.AppendText("Setting Sampling Info ..........OK\n");
dlgSimRunning.Update();
simSettings.numberOfSamples = prtEngine.NumberVertices;
prtBuffer = new PrtBuffer(simSettings.numberOfSamples,
(simSettings.order * simSettings.order), simSettings.numberOfChannels);
dlgSimRunning.richTextBox1.AppendText("Creating Buffer ..........OK\n");
dlgSimRunning.Update();
prtEngine.ComputeDirectLightingSphericalHarmonics(simSettings.order, prtBuffer);
dlgSimRunning.richTextBox1.AppendText("Computing SH ..........OK\n");
dlgSimRunning.Update();
//additional bounces are calculated here
if (simSettings.numberOfBounces > 1)
{
prtBufferA = new PrtBuffer(simSettings.numberOfSamples,
(simSettings.order * simSettings.order), simSettings.numberOfChannels);
prtBufferB = new PrtBuffer(simSettings.numberOfSamples,
(simSettings.order * simSettings.order), simSettings.numberOfChannels);
prtBufferA.AddBuffer(prtBuffer);
}
for (short bounces = 1; bounces < simSettings.numberOfBounces; bounces++)
{
prtEngine.ComputeBounce(prtBufferA, prtBufferB, prtBuffer);//this is where it fails
//swap buffers
PrtBuffer prtTemp = null;
prtTemp = prtBufferA;
prtBufferA = prtBufferB;
prtBufferB = prtTemp;
}
PRTEngine problem: ComputeBounce fails
Author
Hi everyone,
I'm having difficulty getting the PRT engine going. I've reached a point where I want to compute the additional bounces with the ComputeBounce method unfortunately I'm getting a run-time error when I call it. To my mind the code is identical to that found in the examples, but something is obviously wrong and I can't seem to understand why. Here's an excerpt in C#:
Thank you for your time
Author
I should have posted this version it's easier to read I think, sorry
PrtEngine prtEngine = null; PrtBuffer prtBuffer = null; //used for the additional bounces PrtBuffer prtBufferA = null; PrtBuffer prtBufferB = null; prtEngine = new PrtEngine(mesh, adj, false, null); Cursor.Current = Cursors.WaitCursor; prtEngine.SetCallback(simSettings.delegatePercentDone, 0.01f); prtEngine.SetSamplingInfo(simSettings.numberOfRays, false, true, false, 0.0f); simSettings.numberOfSamples = prtEngine.NumberVertices; prtBuffer = new PrtBuffer(simSettings.numberOfSamples, (simSettings.order * simSettings.order), simSettings.numberOfChannels); prtEngine.ComputeDirectLightingSphericalHarmonics(simSettings.order, prtBuffer); if (simSettings.numberOfBounces > 1) { prtBufferA = new PrtBuffer(simSettings.numberOfSamples, (simSettings.order * simSettings.order), simSettings.numberOfChannels); prtBufferB = new PrtBuffer(simSettings.numberOfSamples, (simSettings.order * simSettings.order), simSettings.numberOfChannels); prtBufferA.AddBuffer(prtBuffer); } for (short bounces = 1; bounces < simSettings.numberOfBounces; bounces++) { prtEngine.ComputeBounce(prtBufferA, prtBufferB, prtBuffer); //swap buffers PrtBuffer prtTemp = null; prtTemp = prtBufferA; prtBufferA = prtBufferB; prtBufferB = prtTemp; } prtBuffer.Save((@"..\..\" + simSettings.sFileName.Replace(".x", ".prt"))); Cursor.Current = Cursors.Default;
Author
Here's an even simpler version, it's based on the calling sequence from the DirectX Documentation for C++. There are supposed to be 4 bounce calculations hence the 4 calls to ComputeBounce at the end.
It fails at the first call to ComputeBounce
Here are the exception details
prtEngine.SetCallback(simSettings.delegatePercentDone, 0.01f); prtEngine.SetSamplingInfo(simSettings.numberOfRays, false, true, false, 0.0f); simSettings.numberOfSamples = prtEngine.NumberVertices; prtBufferA = new PrtBuffer(simSettings.numberOfSamples, simSettings.order * simSettings.order, simSettings.numberOfChannels); prtBufferB = new PrtBuffer(simSettings.numberOfSamples, simSettings.order * simSettings.order, simSettings.numberOfChannels); prtBufferC = new PrtBuffer(simSettings.numberOfSamples, simSettings.order * simSettings.order, simSettings.numberOfChannels); prtEngine.ComputeDirectLightingSphericalHarmonics(simSettings.order, prtBufferA); prtBufferC.AddBuffer(prtBufferA); prtEngine.ComputeBounce(prtBufferA, prtBufferB, prtBufferC); prtEngine.ComputeBounce(prtBufferB, prtBufferA, prtBufferC); prtEngine.ComputeBounce(prtBufferA, prtBufferB, prtBufferC); prtEngine.ComputeBounce(prtBufferB, prtBufferA, prtBufferC);It fails at the first call to ComputeBounce
Here are the exception details
Microsoft.DirectX.Direct3D.Direct3DXException was unhandled Message="Error in the application." Source="Microsoft.DirectX.Direct3DX" ErrorCode=-2005530516 ErrorString="D3DERR_INVALIDCALL" StackTrace: at Microsoft.DirectX.Direct3D.PrtEngine.ComputeBounce(PrtBuffer bufferIn, PrtBuffer bufferOut, PrtBuffer dataComputed) at PRTSimulator.PRTSimFunctions.RunSimulation(SimSettings simSettings) in E:\Visual Studio 2005\Projects\PRTSimulator\PRTSimulator\PRTSimFunctions.cs:line 105 at PRTSimulator.PRTSettingsForm.btnRunSim_Click(Object sender, EventArgs e) in E:\Visual Studio 2005\Projects\PRTSimulator\PRTSimulator\PRTSettingsForm.cs:line 53 at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg) at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData) at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context) at System.Windows.Forms.Application.Run(Form mainForm) at PRTSimulator.Program.Main() in E:\Visual Studio 2005\Projects\PRTSimulator\PRTSimulator\Program.cs:line 18 at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args) at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() at System.Threading.ThreadHelper.ThreadStart_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadHelper.ThreadStart()This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
