The quads tag has no wiki summary.
3
votes
1answer
57 views
Texturing a quad
Drawing a quad with a texture mapped to it with the fixed OpenGL pipeline is one of the easiest things to do in OpenGL.
And for some madmaking, mysterious, dumb reason I can't get it to work.
I ...
2
votes
1answer
100 views
re-using objects
I'm working with openGL ES 2.0 on Android and I've created a custom 'Quad' class.
This allows me to make a sprite object like so:
Quad mySprite = new Quad();
mySprite.setSize(w,h);
...
0
votes
3answers
70 views
Rotating each quad in a batch separately?
Background
In my app I use the following code to rotate my quad:
Code
//Rotate the quad
Matrix.setIdentityM(mRotationMatrix, 0);
Matrix.translateM(mRotationMatrix, 0, centreX, centreY, 0f);
...
0
votes
0answers
67 views
Strange problem with rendering quads in OpenGL ES 2.0 with custom classses on Android
I have 2 custom classes, one is for drawing quads (Quad) and the other is for drawing quads using VBO's (VBOQuad).
If I create a simple quad and render it like so:
Quad sprite = new Quad();
...
1
vote
1answer
135 views
Drawing many quads XNA
I asked a similar question to this yesterday and gained some knowhow but
I'm a little confused:
If I have many quads that contain Vertices and Indices
that are positioned to to form a bigger ...
2
votes
2answers
995 views
Mesh with quads to triangle mesh
I want to use Blender for making models yet realize some of the polygons are not triangles but contain quads or more (example: cylinder top and bottom). I could export the the mesh as a basic mesh ...
1
vote
0answers
165 views
Matrix.CreateBillboard centre rotation problem
I'm having an issue with Matrix.CreateBillboard and a textured Quad where the center axis seems to be positioned incorrectly to the quad object which is rotating around a center point:
Using:
...
0
votes
2answers
676 views
Rotating a Quad around it center
How can you rotate a quad around its center?
This is what im trying to do but it aint working:
GL11.glTranslatef(x-getWidth()/2, y-getHeight()/2, 0);
GL11.glRotatef(30, 0.0f, 0.0f, ...
6
votes
2answers
260 views
Must I worry about quad-based rendering in real world scenarios?
Most of the time in the first chapters of a random book about rasterization and rendering techniques, I find some phrases about a triangle-based rendering system and a quad-based one.
I have never ...
3
votes
2answers
311 views
Tessellating/Subdividing a quad
I am creating a quad that starts as a single quad, then divides itself multiple times (from 1 -> 4 -> 16 -> 64 -> 256 etc) but I have encounted an issue. When I get to 64 sub divisions only 16 quads ...
1
vote
1answer
188 views
Quad Rendering Issue
I am fairly new to using Quads, so I'm not sure how I can properly describe this issue in all honesty or to even hazard a guess as to why it's happening, so I have a screenshot to illustrate.
So ...
