Re: AccessViolationException when trying to vary Pixelshader in Techniques.

Gooni — Wed, 01 Jul 2009 07:21:53 GMT

hi legalize,

thanks for your reply. I didn't try logging the problem via connect.microsoft.com. I didn't even know such a thing existed. For the moment, my problem is solved: I was able to split the shader up and with less code in it the problem vanished. However thanks for the advice, I will give it a try next time.

Regards, Gooni.

Re: AccessViolationException when trying to vary Pixelshader in Techniques.

legalize — Mon, 29 Jun 2009 14:56:50 GMT

Sounds like it could be a problem with the ps_3_0 compiler for xbox. Have you tried logging the problem through connect.microsoft.com for the xna game studio?

AccessViolationException when trying to vary Pixelshader in Techniques.

Gooni — Thu, 18 Jun 2009 20:44:30 GMT

I am using the file InstancedModel.fx from the instancing sample and I am trying to use different variations for differnet objects, so I am trying to add the choice of a pixelshader in the techniques:

    
            int ShaderIndex = 0; 
        
            PixelShader PSArray[2] = 
        
            { 
        
                compile ps_3_0 PSOne(), 
        
                compile ps_3_0 PSTwo(), 
        
            }; 
        
            // Xbox instancing technique. 
        
            technique VFetchInstancing 
        
            { 
        
                pass Pass1 
        
                { 

                    VertexShader = compile vs_3_0 VFetchInstancingVertexShader(); 
        
                    PixelShader = compile ps_3_0 PSOne();//(PSArray[ShaderIndex]); 
        
                } 
        
            }

You are looking at the version that is working fine. But as soon as I delete "compile..." and use the (PSArray[ShaderIndex]); which is now commented out, I get the following error:

Building content threw AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at CompileEffectFromSourceForXBox(String effectSource, CompilerMacro[] preprocessorDefines, CompilerIncludeHandler includeHandler, CompilerOptions options)
   at Microsoft.Xna.Framework.Graphics.Effect.CompileEffectFromSource(String effectFileSource, CompilerMacro[] preprocessorDefines, CompilerIncludeHandler includeHandler, CompilerOptions options, TargetPlatform platform)
   at Microsoft.Xna.Framework.Content.Pipeline.Processors.EffectProcessor.Process(EffectContent input, ContentProcessorContext context)
   at Microsoft.Xna.Framework.Content.Pipeline.ContentProcessor`2.Microsoft.Xna.Framework.Content.Pipeline.IContentProcessor.Process(Object input, ContentProcessorContext context)
   at Microsoft.Xna.Framework.Content.Pipeline.BuildCoordinator.BuildAssetWorker(BuildItem item)
   at Microsoft.Xna.Framework.Content.Pipeline.BuildCoordinator.BuildAsset(BuildItem item)
   at Microsoft.Xna.Framework.Content.Pipeline.BuildCoordinator.RunTheBuild()
   at Microsoft.Xna.Framework.Content.Pipeline.Tasks.BuildContent.RemoteProxy.RunTheBuild(BuildCoordinatorSettings settings, TimestampCache timestampCache, ITaskItem[] sourceAssets, String[]& outputContent, String[]& rebuiltContent, String[]& intermediates, Dictionary`2& dependencyTimestamps, KeyValuePair`2[]& warnings)

The code should just work because I simply copied it from BasicEffect-sample?! Any help greatly appreciated...

EDIT: Exception occurs only when building for Xbox. On Windows everything works just fine...

Direct3D

Re: AccessViolationException when trying to vary Pixelshader in Techniques.

Re: AccessViolationException when trying to vary Pixelshader in Techniques.

AccessViolationException when trying to vary Pixelshader in Techniques.