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Added VFEZ

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MaddoScientisto 2025-03-09 15:58:26 +01:00
commit 6d572503cb
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VFEZ/Shaders/Effects/vfez_alpha_radial_clip.gdshaderinc Normal file
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group_uniforms alpha_radial_clip;
uniform float alpha_radial_clip_start_angle: hint_range(0.0, 360., 1.);
uniform float alpha_radial_clip_one: hint_range(0.0, 360., 1.);
uniform float alpha_radial_clip_two: hint_range(0.0, 360., 1.);
group_uniforms;
float alpha_radial_clip(float alpha, vec2 uv, vec2 main_texture_scale)
{
vec2 norm_uv = uv / main_texture_scale;
float start_angle = alpha_radial_clip_start_angle - alpha_radial_clip_one;
float end_angle = alpha_radial_clip_start_angle + alpha_radial_clip_two;
float offset_0 = clamp(0., 360., start_angle + 360.);
float offset_360 = clamp(0., 360., end_angle - 360.);
vec2 atan2Coord = vec2(mix(-1., 1., norm_uv.x), mix(-1., 1., norm_uv.y));
float a_tan_angle = atan(atan2Coord.y, atan2Coord.x) * 57.3;
if (a_tan_angle < 0.)
a_tan_angle = 360. + a_tan_angle;
if (a_tan_angle >= start_angle && a_tan_angle <= end_angle)
return 0.;
if (a_tan_angle <= offset_360)
return 0.;
if (a_tan_angle >= offset_0)
return 0.;
return alpha;
}