The point or points at which two or more shapes cross or overlap one another.

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Ray & Segment Intersection

I'm writing some code to check intersection between all of a rectangles segments and a ray. It will sometimes use the Left and Right side of the rectangle as the closest face hit (face DA & BC) ...
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31 views

Explanation of the parameters in the line intersection code

I am trying to understand a C code that moves the mesh nodes for each time step and i am totally struck on the parameters t1 and t2 please help me sorting this out. So here is what the function gets (...
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67 views

Cutting a 3D mesh with a 2D shape

I have a 2D image that i want to use to cut into a 3D mesh while leaving it closed (basically cut straight through it, and close it by generating vertices in both places it cut, front and back, to ...
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369 views

Sketchy results from ray-plane intersection code

I've set up a demo with simple first-person controls using C++ and OpenGL, and it seems to work reasonably well. My goal is this: when the player looks at a plane and clicks the left mouse button, ...
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19 views

Finding intersection in CPU ray casting

I'm trying to implement a ray casting on CPU, for each pixel I have a ray. I'm reading the data which is stored in a rectilinear grid. I'm trying to find the intersection but I'm not sure how to do ...
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39 views

Integer ops only 3D triangle-triangle collision detection

I've a need for 3D triangle-triangle collision detection using integer math only. Unfortunately, I'm not in a position where I can use 64-bit integers (only 32-bit) and my vertex values can be larger ...
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59 views

Displaying intersection by removing vertices

I am using WPF, using the MeshGeometry3D class to build up my model. I have 2 pipes intersecting each other, and I would like to remove the region of intersection (meaning erase the portion of pipe 1 ...
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120 views

Precalculating timespan of bullet collision on cubic bezier curve circles?

I'm fairly new to game logics, C#/XNA (The language/library of choice) and bezier curves in general, and is stuck in my current project. I'm going to try to explain as thoroughly as I can what the ...