csd4ni3l/fractal-viewer
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Add julia N, slider steps

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csd4ni3l
2025-05-26 16:43:52 +02:00
parent 65b271d1a8
commit 675af0d5ca
6 changed files with 27 additions and 29 deletions
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16
game/shader.py
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@@ -40,8 +40,6 @@ void main() {
if (iters != u_maxIter) {
float t = float(iters) / float(u_maxIter);
float pow_amount = 0.7;
t = pow(t, pow_amount);
value.r = 9.0 * (1.0 - t) * t * t * t;
value.g = 15.0 * (1.0 - t) * (1.0 - t) * t * t;
@@ -102,7 +100,8 @@ layout(location = 0, rgba32f) uniform image2D img_output;
void main() {
ivec2 texel_coord = ivec2(gl_GlobalInvocationID.xy);
int R = {escape_radius};
float R = {escape_radius};
int n = {julia_n};
{vec2type} c = {vec2type}{julia_c};
{vec2type} z = map_pixel({floattype}(texel_coord.x), {floattype}(texel_coord.y), u_resolution, u_real_range, u_imag_range);
@@ -110,9 +109,9 @@ void main() {
int iters = 0;
while ((z.x * z.x + z.y * z.y) < pow(R, 2) && iters < u_maxIter) {
{floattype} xtemp = z.x * z.x - z.y * z.y;
z.y = 2 * z.x * z.y + c.y;
z.x = xtemp + c.x;
{floattype} xtmp = pow((z.x * z.x + z.y * z.y), (n / 2)) * cos(n * atan(z.y, z.x)) + c.x;
z.y = pow((z.x * z.x + z.y * z.y), (n / 2)) * sin(n * atan(z.y, z.x)) + c.y;
z.x = xtmp;
iters = iters + 1;
}
@@ -121,8 +120,6 @@ void main() {
if (iters != u_maxIter) {
float t = float(iters) / float(u_maxIter);
float pow_amount = 0.7;
t = pow(t, pow_amount);
value.r = 9.0 * (1.0 - t) * t * t * t;
value.g = 15.0 * (1.0 - t) * (1.0 - t) * t * t;
@@ -152,7 +149,7 @@ def create_sierpinsky_carpet_shader(width, height, precision="single"):
return shader_program, sierpinsky_carpet_image
def create_julia_shader(width, height, precision="single", escape_radius=2, julia_type="Classic swirling"):
def create_julia_shader(width, height, precision="single", escape_radius=2, julia_type="Classic swirling", julia_n=2):
shader_source = julia_compute_source
if precision == "single":
@@ -166,6 +163,7 @@ def create_julia_shader(width, height, precision="single", escape_radius=2, juli
shader_source = shader_source.replace("{julia_c}", str(julia_c))
shader_source = shader_source.replace("{escape_radius}", str(escape_radius))
shader_source = shader_source.replace("{julia_n}", str(julia_n))
shader_program = pyglet.graphics.shader.ComputeShaderProgram(shader_source)