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Minor cleanEdge rotation optimization

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This commit is contained in:
Emmanouil Papadeas 2023-01-12 18:25:43 +02:00
parent 6a2dfb0dc7
commit 20db211c13
1 changed files with 7 additions and 9 deletions
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16
src/Shaders/Rotation/cleanEdge.gdshader
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@ -324,15 +324,15 @@ void fragment() {
vec2 size = 1.0/TEXTURE_PIXEL_SIZE+0.0001; //fix for some sort of rounding error vec2 size = 1.0/TEXTURE_PIXEL_SIZE+0.0001; //fix for some sort of rounding error
vec2 pivot = selection_pivot / size; // Normalize pivot position vec2 pivot = selection_pivot / size; // Normalize pivot position
float ratio = size.x / size.y; // Resolution ratio float ratio = size.x / size.y; // Resolution ratio
vec2 pixelated_uv = floor(UV * size) / (size - 1.0); // Pixelate UV to fit resolution vec2 pixelated_uv = floor(UV * size) / (size - 1.0); // Pixelate UV to fit resolutio
// vec2 px = UV * size; vec2 rotated_uv;
vec2 px;
if (preview) { if (preview) {
px = rotate(pixelated_uv, pivot, ratio) * size; rotated_uv = rotate(pixelated_uv, pivot, ratio);
} }
else { else {
px = rotate(UV, pivot, ratio) * size; rotated_uv = rotate(UV, pivot, ratio);
} }
vec2 px = rotated_uv * size;
vec2 local = fract(px); vec2 local = fract(px);
px = ceil(px); px = ceil(px);
@ -387,9 +387,9 @@ void fragment() {
} }
// Taken from NearestNeighbour shader // Taken from NearestNeighbour shader
col.a *= texture(selection_tex, rotate(pixelated_uv, pivot, ratio)).a; // Combine with selection mask col.a *= texture(selection_tex, rotated_uv).a; // Combine with selection mask
// Make a border to prevent stretching pixels on the edge // Make a border to prevent stretching pixels on the edge
vec2 border_uv = rotate(pixelated_uv, pivot, ratio); vec2 border_uv = rotated_uv;
// Center the border // Center the border
border_uv -= 0.5; border_uv -= 0.5;
@ -406,6 +406,4 @@ void fragment() {
COLOR.rgb = mix(mix(original.rgb, col.rgb, col.a * border), col.rgb, mask); COLOR.rgb = mix(mix(original.rgb, col.rgb, col.a * border), col.rgb, mask);
COLOR.a = mix(original.a, 0.0, selection); // Remove alpha on the selected area COLOR.a = mix(original.a, 0.0, selection); // Remove alpha on the selected area
COLOR.a = mix(COLOR.a, 1.0, col.a * border); // Combine alpha of original image and rotated COLOR.a = mix(COLOR.a, 1.0, col.a * border); // Combine alpha of original image and rotated
// COLOR = col;
} }