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Glvertex2f gltexcoord2f rubber sheet.
0 0f is the left side of the texture.
Sheets can be augmented with literal functionality or magical functionality.
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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.
Lections on openframeworks and interactive multimedia.
Multiple sheets of paper placed on a desk with projected graphics figure 2 16.
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Gl glvertex2f 0 0f destpoint x 0 0f destpoint y.
A 1 a 2 a 3 a 4.
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.
0 5f is the middle of the texture and 1 0f is the top of the texture.
Imagine that sheet of paper was made of rubber so that you could stretch it.
The second value of gltexcoord2f is the y coordinate.
Generative art creative coding.
Think textures as being rubber sheets.
1 evaluates conditional expressions 3dborder 3 draw borders with three dimensional appearance a2ps 1 format files for printing on a postscript printer a64l 3 conver.
0 5f is the middle of the texture and 1 0f is the right side of the texture.
The lower left corner not the pixel of the texture is at 0 0 the upper right corner is at 1 1.
Stretching would be the texture mapping process.
0 0f is the bottom of the texture.
Get a second piece of transparent paper and try to align them so.
Lection on 2d graphics in openframeworks drawing images transparency offscreen buffer.
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