31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
unsigned int secant_fractal(double x, double y, unsigned int escape, unsigned int iterations) {
|
|
for(unsigned int iter = 0; iter < iterations; iter++) {
|
|
double next_x;
|
|
next_x = x / cos(y);
|
|
y = y / cos(x);
|
|
x = next_x;
|
|
if((pow(x, 2) + pow(y, 2)) >= escape) return iter;
|
|
}
|
|
}
|
|
unsigned int cosecant_fractal(double x, double y, unsigned int escape, unsigned int iterations) {
|
|
for(unsigned int iter = 0; iter < iterations; iter++) {
|
|
double next_x;
|
|
next_x = x / sin(y);
|
|
y = y / sin(x);
|
|
x = next_x;
|
|
if((pow(x, 2) + pow(y, 2)) >= escape) return iter;
|
|
}
|
|
}
|
|
|
|
__kernel void render_frame(__global unsigned int *frame_output, //uint8_t *mask, //more bit depth is possible
|
|
double x_step, double y_step,
|
|
double x_start, double y_start,
|
|
unsigned int iterations, unsigned int escape, double ratio) {
|
|
unsigned int result;
|
|
double on_x = (get_global_id(0) * x_step) + x_start;
|
|
double on_y = (get_global_id(1) * y_step) + y_start;
|
|
|
|
frame_output[(get_global_id(1) * get_global_size(1)) + get_global_id(0)] =
|
|
secant_fractal(on_x, on_y, escape, iterations);
|
|
}
|