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Hi, i try to load .fx file to an object.
no compile errors, it's giving runtime error.

Unhandled exception at 0x01422e3e in Dark GDK - 3D Game3.exe: 0xC0000005: Access violation reading location 0x00000000.

Here the Code:
dbLoadObject("Sea.dbo",10);
dbPositionObject(10,0,0,0);

dbLoadEffect("Shader.fx",1,0);

dbLoadImage("high.dds",1);
dbTextureObject(10,0,1);

dbLoadImage("middle.dds",20,2);
dbTextureObject(10,1,20);

dbLoadImage("low.dds",3,2);
dbTextureObject(10,2,3);

dbSetObjectEffect ( 10,1 );


dbSetEffectConstantFloat(1,"oct1Scale",0.0005f);
dbSetEffectConstantFloat(1,"oct2Scale",0.002f);
dbSetEffectConstantFloat(1,"oct3Scale",0.005f);
dbSetEffectConstantFloat(1,"oct2Time",1.5f);
dbSetEffectConstantFloat(1,"oct3Time",0.8f);
dbSetEffectConstantFloat(1,"oct1Power",5.0f);
dbSetEffectConstantFloat(1,"oct2Power",0.75f);
dbSetEffectConstantFloat(1,"oct3Power",0.125f);
dbSetEffectConstantFloat(1,"oct1Scroll",0.01f);
dbSetEffectConstantFloat(1,"oct2Scroll",0.02f);
dbSetEffectConstantFloat(1,"oct3Scroll",0.06f);
dbSetEffectConstantFloat(1,"sampleWidth",2.0f);
dbSetEffectConstantFloat(1,"sampleHeight",4.0f);


It's showing error at "dbSetEffectConstantFloat(1,"oct1Scale",0.0005f);"

i don't know what's error. and i tried run the project in different pc. it still giving the same error. please help about this.

Thanks

To me, that exception says that you have created an object and not deleted it, is that all of your code? It seems like a memory management issue.

That didn't come out right.

What I meant to say was that you are pointing to an object that doesn't exist. The memory address 0x0000000 means the pointer doesn't know where to point to, it means NULL. Check everything exists that should exists (files, etc) and check their locations.

'Shader.fx' contains an error and/or has not been loaded properly.
You can check syntax errors in .fx files with applications like Darkshader.
The error happens usually in the previous line after the crash. That would be in this case:
dbSetObjectEffect ( 10,1 );