2
votes
1answer
60 views

Colision detection of disc (Maximum Material Condition aka “Flatness”)

I have a 3D-laser scanner which gives me a series of points of a real-world object. The points are related by a common origin. I know I can derive the equation of a plane from 3 points and that the ...
7
votes
3answers
561 views

How do I translate a spherical coordinate to a Cartesian one?

Could someone point me in the right direction as to how this might be achieved? 3D math / geometry often throws me. I'm looking for something like this (ideally in C#): public Vector3 ...
2
votes
1answer
74 views

Why are my 2D world click-positions offset after camera movement?

I'm writing a 2D game engine. I need to add a camera to my world that can zoom in and out as well as move away from its initial position at (0,0) at the center of the world. The main issue can be ...
3
votes
2answers
92 views

How can I read the color of a specific pixel in XNA?

I want a way to find out if, for example, the pixel at Vector2(2, 5) on the game window is color Color.Red, or some other color or set of coordinates. How can I do this?
1
vote
1answer
3k views

Converting world space coordinate to screen space coordinate and getting incorrect range of values

I'm attempting to convert from world space coordinates to screen space coordinates. I have the following code to transform my object position Vector3 screenSpacePoint = ...
0
votes
4answers
3k views

XNA spritebatch drawing to the centre of screen

I have bit of a silly problem. Is is possible to use SpriteBatch.Draw() method to draw to the centre of screen using coords from the beginning of window (So resolution 800x600 would use 400;300) ...
5
votes
2answers
1k views

Coordinates from 3DS Max to XNA 3.5

My problem is this. I have a simple box made in 3DS Max 2009, the Box is 10x10x10. I've tried to load it on XNA and traslate the camera for 15 units, but I can seem to find the values needed to see ...