Transformation in game development is usually refers to linear algebra operations on points, vectors and matrices.
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2answers
74 views
Realtime fisheye to cubic or spherical panorama transformations with OpenGL or pixelshaders
I'd like to transform a sequence of circular fisheye-images to cubic or spherical panorama images to be used in a panorama-viewer based on OpenGL. The viewer-part is nemas problemas but the transform ...
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votes
1answer
49 views
XNA Camera Positioning All Wrong
I've been working in 3DSMax for years now and decided to give XNA 4.0 a try. I've got the majority of it working, however the camera is being a pain to me and I can't discern what's gone wrong. I ...
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votes
1answer
56 views
Translating Viewmatrix is inverted, why?
So I've defined a Projectionmatrix, Viewmatrix and a Modelmatrix using OpenGL (LWJGL).
But when I translate my Viewmatrix to +X it moves my object to the right (hence my camera is moving to the ...
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votes
2answers
45 views
Transform translation relative to world space
What is common algorithm for translating a transform matrix relative to world space axis?
E.g. Matrix M is representing some local space.
When I want to translate M relative to it's own local axis, I ...
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votes
1answer
46 views
Transformations are not correct using GLM and OpenGL
The aim of my program is to render a simple colored triangle in rotation. The rotations are correct if all Z values of my vertices are equals to 0.0f. If one of these values are different of 0.0f the ...
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vote
1answer
51 views
changing coordinate system
I'm currently trying to transform a system by scaling it on x and y axis and have some uncertainty. I have the general concept that scaling works as such:
My original box has corners at (0, 0) and ...
2
votes
1answer
85 views
transformations of matrices
I'm in the process of reading up on 3d matrices and trying to following this powerpoint and had a few questions as to how to exactly determine the type of transformation from a matrix.
If I have a ...
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votes
1answer
120 views
Interpolating a player between two 2D points?
I would like a player to be able to move in a direction smoothly, whilst sticking to a fixed grid. Much like in Pokemon, how the player can move, but when the key is pressed and released quickly, they ...
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vote
1answer
90 views
Canvas isometric translations to integer coordinates
I'm creating a canvas based game with an isometric playing board. I use the following transformations to get my square tiles to render on the screen:
'applyViewportTransformation' : function() {
...
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1answer
206 views
How to extract euler angles from transformation matrix?
I have a simple realisation of entity/component game engine.
Transform component have methods to set local position, local rotation, global position and global rotation.
If transform is being set new ...
1
vote
1answer
86 views
Proper approach to handle transformation matrix and extract its components
Basically I have a Transformation component object with following structure(pseudo):
TransformComponent{
Vec3 position;
Vec3 rotation; //in euler angles
Vec3 scale;
Mat4 worldMatrix; ...
0
votes
1answer
65 views
How to change Vectors due to change in it's dependent Base Vector?
PLOT :
I have been developing a game where the player falls down on Y axis and the camera is a Top-Down view camera. The camera, player (main character in the game) movements etc. have all been ...
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0answers
43 views
Proper matrix rotation and storing rotation values
I have GameObject's transform component(position+rotation) and shape mesh(array of vertices).
On each game tick I update coordinates of vertices relatively to game object's rotation.
And my current ...
3
votes
2answers
100 views
Calculating transform of arrow model pointing at some point in 3D space
I'm working on a 3D flight game and I'd like to implement a simple "navigation arrow" pointing at the next waypoint in world which the player has to fly to.
I have position of both airplane (=camera) ...
0
votes
1answer
120 views
Rotation of Rectangle along Y-axis transformed to parallelogram
After the rotation of a rectangular view along the Y-axis, about its center, transformed into parallelogram, how do I get the rotated parallelogram coordinates?
By Y-axis, I mean perpendicular to the ...
