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refactor common scale ratio code

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This commit is contained in:
Chad Brokaw 2023-05-15 14:54:44 -04:00
parent 58c7df469d
commit 7b68630d6a
1 changed files with 3 additions and 3 deletions
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6
shader/draw_leaf.wgsl
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@ -201,9 +201,9 @@ fn main(
); );
} else { } else {
let a = radius * radius - 1.0; let a = radius * radius - 1.0;
let a_recip = 1.0 / a; let scale_ratio = abs(1.0 - focal_x) / a;
let scale_x = radius * a_recip * abs(1.0 - focal_x); let scale_x = radius * scale_ratio;
let scale_y = sqrt(abs(a)) * a_recip * abs(1.0 - focal_x); let scale_y = sqrt(abs(a)) * scale_ratio;
user_to_scaled = transform_mul( user_to_scaled = transform_mul(
Transform(vec4(scale_x, 0.0, 0.0, scale_y), vec2(0.0)), Transform(vec4(scale_x, 0.0, 0.0, scale_y), vec2(0.0)),
user_to_unit_line user_to_unit_line