art with code


New things in WebGL land

Compressed textures are coming!
Draft extension: WEBGL_compressed_texture_s3tc

Extension initiatives for depth textures, uint element indexes and public-webgl discussion about anisotropic filtering!
In the draft extension list: WEBGL_depth_textureOES_element_index_uint

What is this: OES_vertex_array_object

Uint8ClampedArray is the Typed Array equivalent to Canvas ImageData.


More basic math

A couple more simple "why is that" breakdowns:

Why does multiplying by -1 give you the negative of a symbol:

(-1xA) = (-1xA)
(-1xA) = ((1xA) + -(1xA)) + (-1xA)
(-1xA) = A x (1 + -(1xA)/A + -1)
(-1xA) = A x (-(1xA)/A)
(-1xA) = -(1xA) x A/A
(-1xA) = -(1xA) x 1
(-1xA) = -(1xA)
(-1xA) = -A

Why is -(B x A) = (-B x A):

-(B x A) = -(B x A)

-(B x A) = -1 x (B x A) 
-(B x A) = (-1 x B) x A
-(B x A) = (-B x A)

Why does multiplying by 0 give you 0:

0A = 0A           | X + -X = 0
0A = (B + -B)A    | (X+Y)Z = XZ + YZ
0A = (BA) + (-BA) | (-BA) = -(BA)

0A = (BA) + -(BA) | X + -X = 0
0A = 0


Exposure lock on Nikon D5100

Go to MENU > Custom Settings > Controls > f2 Assign AE-L/AF-L Button. Set it to AE lock (Hold).

Now the AE-L button acts as a toggle.

Very useful for videos.

About Me

My photo

Built art installations, web sites, graphics libraries, web browsers, mobile apps, desktop apps, media player themes, many nutty prototypes, much bad code, much bad art.

Have freelanced for Verizon, Google, Mozilla, Warner Bros, Sony Pictures, Yahoo!, Microsoft, Valve Software, TDK Electronics.

Ex-Chrome Developer Relations.