Cocos3d: POD output doesn't proper and black shaded

2
votes

I am developing an 3d app using Cocos3d on iOS. I created a blender file for a house and exported it as .dae and convert to .pod using colladatopod tool. When i render image in blender, it shows output well, but after i converted and added as .pod file in cocos3d project and running in simulator, the output has black shaded. Could someone advise why is this issue occur? i did set shouldCullBackFaces to NO in code. I followed the procedure as it is for pod conversion. I don't know where is the issue now.

Here are the reference screenshot link: Blender output: http://s11.postimage.org/94d9d2h8z/Blender_House_Model.png Simulator output: http://s3.postimage.org/jztkix0s3/Output_In_Simulator.png

Blender output: http://s14.postimage.org/huixtamk1/Blender_Output.png Simulator output: http://s14.postimage.org/u3k1kcu5t/Simulator_Output.png

And another question is, my pod output always shows smaller image in simulator eventhough its a bigger pod model, how should i set it to the actual size in code?

Thank you

2
ioscocos3d
Looks like the brick texture is missing, did you add it to the project? Size is simply determined by distance to camera, closer to camera == bigger object. ;) – LearnCocos2D
This is one model created in blender, it has texture for roof, windows and door. And it has colored with some background on the wall. But, nothing is coming when i run it simulator. What should i do now? – Getsy
I have kept another screenshot reference in the question above. Its strange to me that why it is not working when it comes to simulator. – Getsy
Hi, Suggestion please? – Getsy
I am using Blender 2.65. is this the problem? – Getsy

2 Answers

3
votes

I guess there is something wrong with your pod file. How are you exporting pod file? Do something like exporting to collada and then use a collada to POD converter to get the required .pod files. I had some issues with blender before. They require python files to be added for additional functionalities. May be you are missing some. Try going through some tutorials. I had been working in cocos for a few days so can't tell you in detail the reason. Hope this helps :)

You can also check whether the POD file is broken or not. Follow these

  • brenwill.com/2011/cocos3d-importing-converting-collada-to-pod

  • cocos2d-iphone.org/forum/topic/28872 (Also go through tutorials of
    Bill Hollings)

1
votes

It's hard to tell what's your setup, but here's a list of things to check

  • Is the shader properly set before rendering? Try using a different one.

  • Is the shader using any lighting that is somehow misaligned? Should there be normals?

  • Is it an improperly loaded non-power-of-two texture causing the problem? Try a different texture.

  • Are you exporting texture coords properly, do you read them into the VBO?