2d graphics free download as pdf file pdf text file txt or view presentation slides online.
Glvertex2f gltexcoord2f rubber sheet.
0 5f is the middle of the texture and 1 0f is the right side of the texture.
Issuu is a digital publishing platform that makes it simple to publish magazines catalogs newspapers books and more online.
Multiple sheets of paper placed on a desk with projected graphics figure 2 16.
A 1 a 2 a 3 a 4.
0 0f is the bottom of the texture.
Preliminaries vectors and vector products.
A bitmap of each sheet is extracted from the camera image thresholded and used to identify the sheet without the use of glyphs by comparing it to the appearance of known sheets.
Xii 3 representations of orientations xii 4 kinematics.
Imagine that sheet of paper was made of rubber so that you could stretch it.
319 319 320 325 329.
Sheets can be augmented with literal functionality or magical functionality.
Easily share your publications and get them in front of issuu s.
Gl glvertex2f 0 0f destpoint x 0 0f destpoint y.
The lower left corner not the pixel of the texture is at 0 0 the upper right corner is at 1 1.
The first value of gltexcoord2f is the x coordinate.
Generative art creative coding.
Lections on openframeworks and interactive multimedia.
Think textures as being rubber sheets.
Stretching would be the texture mapping process.
0 0f is the left side of the texture.
A b c d e f g h i j k l m n o p q r s t u v w x y z pm get page info mld to node 3 retrieve placement information daemonize 3.
We will discuss art graphics sound computer vision opencv osc and arduino all in connection to openframeworks with many examples.
Get a second piece of transparent paper and try to align them so.
When drawing a triangle to the screen the exact position on screen doesn t matter the texture rubber sheet is cut out according to the texture coordinates and stretched onto the triangle as specified by the texture coordinates.
Lection on 2d graphics in openframeworks drawing images transparency offscreen buffer.
The second value of gltexcoord2f is the y coordinate.
