 for example lines 20 and 26 above. This function takes three arguments: a lower boundary (edge0 an upper boundary (edge1) and a value as a source for the interpolation. Figure 1, kalmar-malmö h2h figure 2, listing 1 displacement smoothbump( float. Playing with texture coordinates, texture coordinates can also be used for some interesting effects. The density of the grid is defined by a multiplication factor applied to the texture coordinates. note we have to deal with weird colors like purple and yellow that are also 100 red, but arent actually red float mixamount (thresh sat.

Glsl smoothstep exempel For more information please visit: www. The step interpolation receives two parameters. Float cos(float angle) vec2 cos(vec2 angle) vec3 cos(vec3 angle) vec4 cos(vec4 angle the cos function returns the cosine of an angle in radians. Advance shaping functions Golan Levin has great documentation of more complex shaping functions that are extraordinarily helpful. The indices of the returned matrix are calculated as follows: zij xij * yij Side note: This is NOT the matrix multiplication known from linear algebra. Quick Note : The vec3 type constructor "understands" that you want to assign the three color channels with the same value, while vec4 understands that you want to construct a four dimensional vector with a three dimensional one plus a fourth value (in this case. If you are reading this example in a browser you will see that you can change the code in the formula above to watch how the wave changes. 