csd4ni3l/fractal-viewer
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Move to settings dropdown instead of category buttons, add Buffalo Fractal, fix settings issue

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csd4ni3l
2025-06-25 20:05:33 +02:00
parent 81e60e5862
commit 333e5a23e8
6 changed files with 65 additions and 20 deletions
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2
game/iter_fractal_viewer.py
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@@ -35,7 +35,7 @@ class IterFractalViewer(arcade.gui.UIView):
int(self.settings_dict.get(f"{self.fractal_name}_escape_radius", 2)),
self.settings_dict.get("julia_type", "Classic swirling")
)
self.fractal_sprite = pyglet.sprite.Sprite(img=self.fractal_image)
self.create_image()

40
game/shader.py
View File

@@ -206,6 +206,39 @@ multi_mandelbar_calc = """int calculate_iters(vec2 c) {{
}}
"""
buffalo_fractal_calc = """int calculate_iters({vec2type} c) {{
int iters = 0;
{vec2type} z = {vec2type}(0.0, 0.0);
{floattype} R = {escape_radius};
while (dot(z, z) < R * R && iters < u_maxIter) {{
{floattype} z_squared_real = z.x * z.x - z.y * z.y;
{floattype} z_squared_imag = 2.0 * z.x * z.y;
z = {vec2type}(abs(z_squared_real) + c.x, abs(z_squared_imag) + c.y);
iters++;
}}
return iters;
}}
"""
multi_buffalo_fractal_calc = """int calculate_iters(vec2 c) {{
int iters = 0;
vec2 z = vec2(0.0);
float n = {multi_n};
float R = {escape_radius};
while (dot(z, z) < R * R && iters < u_maxIter) {{
float r = length(z);
float theta = atan(z.y, z.x);
float r_n = pow(r, n);
float theta_n = n * theta;
float zn_real = r_n * cos(theta_n);
float zn_imag = r_n * sin(theta_n);
z = vec2(abs(zn_real) + c.x, abs(zn_imag) + c.y);
iters++;
}}
return iters;
}}
"""
burning_ship_calc = """int calculate_iters({vec2type} c) {{
int iters = 0;
{vec2type} z = {vec2type}(0.0, 0.0);
@@ -375,6 +408,13 @@ def create_iter_calc_shader(fractal_type, width, height, precision="single", mul
else:
replacements["iter_calc_func"] = multi_julia_calc.format_map(replacements)
elif fractal_type == "buffalo_fractal":
replacements["coloring_func"] = fire_coloring.format_map(replacements)
if int(multi_n) == 2:
replacements["iter_calc_func"] = buffalo_fractal_calc.format_map(replacements)
else:
replacements["iter_calc_func"] = multi_buffalo_fractal_calc.format_map(replacements)
elif fractal_type == "burning_ship":
replacements["coloring_func"] = fire_coloring.format_map(replacements)
replacements["iter_calc_func"] = burning_ship_calc.format_map(replacements)