Slowly starting to understand OFW. Thanks for all the posts in the forum, they are really helpful.
Now the question: I am currently working with shaders. I downloaded the examples from the addons page:
The project compiles without any problem but every time i try to run it i get the next exception:
GDB: Program received signal ‘EXC_BAD_ACCESS’
I know this is related with memory protection, right?. I compiled the example as it is(only changed a reference on the ofRunApp method), so i am rather unclear what can be the reason for this problem. I have noticed that the compilation of some old OFW examples creates such situation. Am I missing something?
I think you need to place the shaders in the same folder as your app, i.e. the bin folder.
This is not terribly well documented, and in future I there should be the option to load shaders from a given directory.
Thank you for the answer.
The original location of my shaders was:
I have been trying different things:
1-changing the location of the shader
2-changed the XCode project by placing the shaders together with the source
3-modify the fragment shader so I could know if the problem is coming from the shaders:
gl_FragColor = vec4(1.0,0.3,0.1,1.0);
however, nothing so far has worked. Am i missing something here?
Herewith I attach a newer version of the project(It compiles but doesn’t run) and the warnings.
Any progress on this? I get the same errors.
Also the use of ofxShader seems to be a bit all over the place in the forum, some people use ofxShader and others ofShader from the addon page, very confusing …
Any help will be much appreciated!
i was able to replicate your error from your src. i believe the ofShader addon you downloaded is fairly old… once i switched to the ofxShader you have in the src folder, everything compiled and ran fine.
so, to fix your problem:
- change your include in testApp.h to
and change your ofShader temp variable to ofxShader temp
- give the correct path in load
- should be temp.loadShader(“shaders/color”);
since they are in the shaders folder
- change your setUniform function to the ofxShader syntax:
that should be it!
I am not the author of the post but this help me a lot, It is compiling at last, now I need to study the code