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Type: Posts; User: Barbarosa

1. ## Thread: Confusion with values in modelview matrix.

by Barbarosa
Replies
6
Views
1,410

### Thanks for the reply GClements, that sorted out...

Thanks for the reply GClements, that sorted out many things in my mind and also answeared my question.
2. ## Thread: Confusion with values in modelview matrix.

by Barbarosa
Replies
6
Views
1,410

### I have read this. Let me explain better what i...

I have read this. Let me explain better what i need. Every shape can take the form of a matrix whose columns are the homogeneous coordinates of the shape's vertices. Now, we have a transformation...
3. ## Thread: Confusion with values in modelview matrix.

by Barbarosa
Replies
6
Views
1,410

### Sorry, i am using a cube but in my mind a had a...

Sorry, i am using a cube but in my mind a had a square so i thought that every column of "matrix1" is a vertex. So how can i take a 4x8 matrix whose collums are the vertices that i want? And by the...
4. ## Thread: Confusion with values in modelview matrix.

by Barbarosa
Replies
6
Views
1,410

### Confusion with values in modelview matrix.

Hello,

I have a cube and do some transformations. I need to know the coordinates of the vertices so i use the "glGetFloatv (GL_MODELVIEW_MATRIX, matrix1)" where "matrix1" is a matrix with 16...
5. ## Thread: Get cube points after transformations

by Barbarosa
Replies
4
Views
837

### That's exactly what i was looking for. Thank you...

That's exactly what i was looking for. Thank you very much!
6. ## Thread: Get cube points after transformations

by Barbarosa
Replies
4
Views
837

### I try to implement the separating axis theorem...

I try to implement the separating axis theorem for some oriented bounding boxes (cubes in my case). So i need the unit vectors that represent the 3 local axis of each box. To find these unit vectors...
7. ## Thread: Get cube points after transformations

by Barbarosa
Replies
4
Views
837

### Get cube points after transformations

Hello,

I have created a cube (with known vertices) and i rotate and traslate it. What i lack are the new positions of its vertices after the transformations. So the question is do i have to find...
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