Leaving a mark on a textured wall in OpenGL [closed] - opengl

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I don't know the actual term of this technique but how do I apply a texture (say a bullet-hole texture) somewhere in my 3D map (where my character shot)?
Here's what I'm talking about:

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Where to place Clojure Specs? [closed]

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If you use Clojure Spec, how do you use it?
Do you tend to put all your specs in one place or distribute them through the "modules" of your program?

What is the difference between "Truffle Develop" and "Ethereumjs TestRPC"? [closed]

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What is the difference in using "Truffle Develop" and "Ethereumjs TestRPC"? While Ethereumjs-TestRPC runs an in-memory blockchain, I am curious about how "Truffle Develop" works.

Face Recognition using c++ and opencv [closed]

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I want to compare between two faces using openCV , how can I do that ?
Comparing between 2 images can be done by accessing each pixels and taking the difference or use the absolutedifference () to compare the two frames

How can i implement ambient Occlusion (SSAO) for Horde3d? [closed]

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i've read couple of blog posts about the ssao effect but so far but i dont' know where to begin im beginner on the whole thing of GPU programming. Can anybody help me?
http://kuko.serveblog.net/2012/05/08/horde3d-ssao-effect-ambient-occlusion-tutorial/

Can we reach the same results with ogl and dx? [closed]

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Can we reach the same graphics results with OpenGL and DirectX?
Yes, you can. OpenGL 4.1 and Direct3D 11 have equal functionality.