A 2D array of numbers, symbols or expressions, arranged in rows and columns. Each row must have the same number of columns. The numbers, symbols or expressions themselves are called elements or entries.

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How do I calculate an offset from an Object based on the Objects Rotation rather than the World Space

I have a Matrix of a player & I want to create a second location a set distance away from the first location but I want the second matrix to be set a set distance based on the rotation of the ...
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1answer
172 views

Is there a memory read/write or performance difference when applying affine transformations on a movieclip rather basic elementary math

I am using Actionscript 3.0 to make games and I fall into the category of programmers who use ball.x+=5; ball.y+=5; in order to move a ball by 5 pixels horizontally and vertically. Well, now i seem ...
0
votes
1answer
334 views

Conversion from matrix defining rotation and position to camera matrix

I have a matrix that defines the rotation and translation of an object, relative to (0, 0, 0). Assuming that the identity matrix defines the camera to be at (0, 0, 0) pointing at (0, 0, 1), how would ...
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2answers
695 views

Portal Projection

Ok ok I admit, I'm bored and toying with a portal script like the one on steam. I've figured out the following: relative positioning of the mirrored cameras render to texture for the portal (the ...
3
votes
1answer
391 views

Is there are a good double-precision small matrix SIMD library for x86?

I'm looking for a SIMD library focused small (4x4) matrix operations for graphics. There's lots of single precision ones out there, but I need to support both single and double precision. I've looked ...
14
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6answers
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Math topics for 3D graphics programming [closed]

I understand that the following math topics are required for 3D graphics programming. I have started doing some of them in my math course. Can someone point me in the direction of a resource that ...
4
votes
1answer
548 views

Managing Game Entity coordinates

In my Game I'm currently have "Scene Coordinates" which are the X,Y coordinates relative to a Game Scene. In that Scene there are Game Entities, let's say there's a GameEntity A in x=100.0, y=100.0 ( ...
5
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4answers
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From camera coordinates to world coordinates

I want to calculate world coordinates from camera coordinates. However, I seem to have problems with my understandings of how matrices in HLSL work. From world to camera is clear: cameraPosition = ...
5
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1answer
409 views

Realistic damage

I'm looking for a good way to simulate damage, for example a weapon firing at a ship it would calculate the damage depending on layer type, weapon type, angle and similar what i need is a way to to ...
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2answers
494 views

opengl rotations for a human

I currently can rotate around a pivot point by first translating to the pivot point then performing the rotation and finally translating back to the origin. I do that easily enough for the shoulder in ...
4
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1answer
3k views

How to create a perspective field of view matrix?

Hey, hello. I am learning a little of WebGL (OpenGL ES 2.0) through the http://learningwebgl.com tutorials, but it uses a third party library to create the View, Projection and transformation matrices ...
4
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2answers
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View matrix in opengl

Sorry for my clumsy question. But I don't know where I am wrong at creating view matrix. I have the following code: createMatrix(vec4f(xAxis.x, xAxis.y, xAxis.z, dot(xAxis,eye)), vec4f( yAxis.x_,...
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3answers
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Interpolating Matrices

Apologies if I am missing something very obvious (likely!) but is there anything wrong with interpolating between two matrices by: float d = (float)(targetTime.Ticks - keyframe_start.ticks) / (...
8
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1answer
1k views

2D Skeletal Animation Transformations

I have been trying to build a 2D skeletal animation system for a while, and I believe that I'm fairly close to finishing. Currently, I have the following data structures: struct Bone { Bone *...
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vote
2answers
715 views

How do I have to take into account the direction in which the camera is facing when creating a first person strafe (left/right) movement

This is the code I am currently using, and it works great, except for the strafe always causes the camera to move along the X axis which is not relative to the direction in which the camera is ...
3
votes
2answers
491 views

When constructing an orientation matrix, are the rows of the matrix the axis?

When constructing an orientation matrix, are the rows of the matrix the axis? The matrix is row-major and I'm multiplying vectors on the right (Mv). So, the matrix looks like r0c0 r0c1 r0c2 r1c0 ...