Top new questions this week:
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There are plenty of well-known algorithms for determining if a ray hit an Axis-Aligned Bounding Box (AABB), like Andrew Woo's covered in a response here.
Using exit = origin + (dir * tMax) will give ...
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A point light is illuminating only a half of a scene in my small 3D renderer. It happens on every scene I've tried (conference room, cornell box, etc).
How do I go about debugging this? What could ...
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Greatest hits from previous weeks:
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Looking at a light probe texture, it looks like a blurry environment map.
What's the difference between the two, how is a light probe made, and what is the benefit of it being blurry?
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Anisotropic filtering "retains the sharpness of a texture normally lost by MIP map texture's attempts to avoid aliasing". The Wikipedia article gives hints about how it can be implemented ("probe the ...
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I've read that blur is done in real time graphics by doing it on one axis and then the other.
I've done a bit of convolution in 1D in the past but I am not super comfortable with it, nor know what to ...
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A fairly basic, in some ways, question, but one that many people, myself included, don't really know the answer to. GPU manufacturers often cite extremely high numbers, and the spread between polygon ...
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EDIT: I'm not fully clear on terminology here, what I previously understood to be called "brightness" seems poorly defined. I think I am asking about radiant intensity, that is, the measurable ...
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I've been following the LearnOpenGL tutorials and I've come across a piece of code I don't understand.
glUniform1i(glGetUniformLocation(ShaderID, "textureVar"), 0);
In the above code ShaderID is a ...
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I am rotating n 3D shape using Euler angles in the order of XYZ meaning that the object is first rotated along the X axis, then Y and then Z. I want to convert the Euler angle to Quaternion and then ...
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