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    Sampling color at vertexes

    SDK Help
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    • H
      Helper
      last edited by

      On 08/08/2014 at 09:18, xxxxxxxx wrote:

      Doing some simple detective work I found out that what is causing the crash in SampleColorAtVertices is the line:

      Sampler smpl;

      If I place a return INIT_SAMPLER_RESULT_OK; before this line, no crash occurs.
      If I place a return INIT_SAMPLER_RESULT_OK; after this line, the crash occurs.

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      • H
        Helper
        last edited by

        On 08/08/2014 at 11:41, xxxxxxxx wrote:

        Hi
        This seems to be a problem in the constructor.
        Sampler::Sampler() { ... }

        But it is imposible to say exactly what causes this crash without knowing what was changed in the code.

        Have you changes something in this code section ?

          
        	AutoAlloc<VolumeData> vd; //Owning ptr 	  
        AutoAlloc<TexData>	 tex; //Owning ptr  
        

        Because this will auto alloc vd and tex.

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        • H
          Helper
          last edited by

          On 08/08/2014 at 12:03, xxxxxxxx wrote:

          This is what I have:

            
          //=================================================================================================   
          class Sampler   
          //=================================================================================================   
          {   
          public:   
               Sampler();   
               ~Sampler();   
                  
               //init this sampler, always call one of this before everything else.   
               INIT_SAMPLER_RESULT Init(BaseObject *obj,LONG chnr=CHANNEL_COLOR,Real time=0.0);   
               INIT_SAMPLER_RESULT Init(BaseMaterial *mat ,LONG chnr,Real time,BaseDocument *doc,BaseObject *op=nullptr);   
               INIT_SAMPLER_RESULT Init(TextureTag *textag,LONG chnr,Real time,BaseDocument *doc,BaseObject *op=nullptr);   
                  
               //return true if Init was called before.   
               inline Bool IsInit(){ return TexInit; };   
                  
               //return color at UVW coordinates.   
               Vector     SampleUV(const Vector &uv;, Real time=0.0);   
                  
               //return color at 3D coordinates p, if shader is not 3D then uv will be used.   
               Vector     Sample3D(const Vector &pos3d;, const Vector &uv; = Vector(0.0), Real time=0.0);   
                  
               //return average color of the shader   
               Vector AverageColor(LONG num_samples = 128);   
                  
               void Free();   
          private:   
               BaseShader                *texShader; //NON owning ptr   
               AutoAlloc<VolumeData> vd; //Owning ptr   
               AutoAlloc<TexData>      tex; //Owning ptr   
               RayObject                *rop; //Owning ptr   
                  
               InitRenderStruct     irs;   
               ChannelData               cd;   
                  
               Matrix               omg;   
               Real               offsetX;   
               Real               offsetY;   
               Real               lenX;   
               Real               lenY;   
               Bool               TexInit;   
          };   
          
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          • H
            Helper
            last edited by

            On 08/08/2014 at 12:06, xxxxxxxx wrote:

            Well then it will be cause by some changes in the constructor.
            Sampler::Sampler()

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            • H
              Helper
              last edited by

              On 08/08/2014 at 12:15, xxxxxxxx wrote:

              Well, the listing is a bit long. Should I paste it here or should I send it over through e-mail? (if I can, of course... I don't want to be imposing).

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              • H
                Helper
                last edited by

                On 08/08/2014 at 12:18, xxxxxxxx wrote:

                Should I paste it here or should I send it over through e-mail?
                Of course you can send it over e-mail.
                Even better just place it on github.com

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                • H
                  Helper
                  last edited by

                  On 08/08/2014 at 12:25, xxxxxxxx wrote:

                  Mustn't I have an account in github.com to place something there?
                  And, if I send you the listing over e-mail, can I use the mail I used when I bought some of your plugins? 🙂

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                  • H
                    Helper
                    last edited by

                    On 08/08/2014 at 13:18, xxxxxxxx wrote:

                    Since you're having so many problems with this. I decided to create a DescriptionToolData plugin myself.
                    I used your Message() code for the getting the object in the linkbox gizmo.
                    And I used the same Sample class code I sent you in my CD plugin.
                    I also used a separate .h file to host that code. Using #include "sampler.h" to point to the code from the plugin's .cpp file

                    It all works fine for me and does not crash at all. I can't undestand why you're having so many problems with it.
                    Would you like me to send you my tool plugin?

                    -ScottA

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                    • H
                      Helper
                      last edited by

                      On 08/08/2014 at 13:24, xxxxxxxx wrote:

                      Mustn't I have an account in github.com to place something there?
                      I think yes.
                      > And, if I send you the listing over e-mail, can I use the mail I used when I bought some of your plugins? 🙂
                      Or just PM me here, whatever you want 🙂
                      Note: I do not ready my e-mails often. Some times for many days.

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                      • H
                        Helper
                        last edited by

                        On 08/08/2014 at 13:38, xxxxxxxx wrote:

                        Thank you to both.
                        I will try take a look at Scott plugin and compare it with mine first.
                        I hope I find my mistake (I'm assuming I must be doing something wrong).
                        If I still don't manage to fix it, I will send you my code through PM, Remo.
                        Ok?

                        So, if you don't mind, Scott, I would gladly take a look at your plugin.
                        Same batchannel, same bat-mail 😉

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                        • H
                          Helper
                          last edited by

                          On 08/08/2014 at 14:57, xxxxxxxx wrote:

                          I'm still cleaning up (it still hanged my code 😞 )
                          In the meanwhile, let me tell you guys one thing that may help pinpoit the problem.
                          Xcode is giving me a warning in the line:

                          GeDynamicArray<Colors> colors(pcnt);

                          The warning is: Template argument uses local type 'Colors'

                          What is this?!?

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                          • H
                            Helper
                            last edited by

                            On 09/08/2014 at 12:43, xxxxxxxx wrote:

                            Remo, I have sent you an mail (and a movie through wetransfer) to your gmail account.
                            I don't know if it is still active, though.

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