zink/animated_wallpaper
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Shadows from right and back neighbors

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Richard Zink committed 2026-10-06 18:01:45 +02:00
1 parent b3161bb3aa
commit 7b0f5b5d67
1 file changed
+7 -7
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assets/index.html
+7 -7
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@@ -196,10 +196,10 @@
if (h > 0) {
var hRightNeighbor = heightMap[(wx + TILE) + ',' + wy] || 0;
var hLeftNeighbor = heightMap[wx + ',' + (wy - TILE)] || 0;
var hBackNeighbor = heightMap[wx + ',' + (wy - TILE)] || 0;
var shadowFromRight = hRightNeighbor - h;
var shadowFromLeft = hLeftNeighbor - h;
var shadowFromBack = hBackNeighbor - h;
if (shadowFromRight > 0) {
var shadowW = Math.min(shadowFromRight * 2, TILE);
@@ -221,13 +221,13 @@
});
}
if (shadowFromLeft > 0) {
var shadowW = Math.min(shadowFromLeft * 2, TILE);
if (shadowFromBack > 0) {
var shadowW = Math.min(shadowFromBack * 2, TILE);
var tt = shadowW / TILE;
var top1 = project(wx + GAP/2, wy + TILE - GAP/2, h * HEIGHT_UNIT);
var top4 = project(wx + GAP/2, wy + GAP/2, h * HEIGHT_UNIT);
var top2 = project(wx + TILE - GAP/2, wy + TILE - GAP/2, h * HEIGHT_UNIT);
var topA = project(wx + GAP/2, wy + TILE - GAP/2 - (TILE - GAP) * tt, h * HEIGHT_UNIT);
var topB = project(wx + GAP/2, wy + GAP/2 - (TILE - GAP) * tt, h * HEIGHT_UNIT);
var topB = project(wx + TILE - GAP/2, wy + TILE - GAP/2 - (TILE - GAP) * tt, h * HEIGHT_UNIT);
renderList.push({
type: 'shadow',
@@ -235,7 +235,7 @@
{ x: top1[0], y: top1[1] },
{ x: topA[0], y: topA[1] },
{ x: topB[0], y: topB[1] },
{ x: top4[0], y: top4[1] }
{ x: top2[0], y: top2[1] }
],
depth: wx + wy + 0.0005
});