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feat: overhaul grass

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neru
2026-06-01 17:31:13 -03:00
parent cad47f07bd
commit d506071ce2
4 changed files with 53 additions and 35 deletions
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src/app/niko/scene-components/grass.tsx
+10 -16
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@@ -170,30 +170,24 @@ export default function Grass({
dummy.position.set(localX, localY, localZ);
dummy.rotation.y = Math.random() * Math.PI * 2;
dummy.rotation.x = (Math.random() - 0.5) * 0.15;
dummy.rotation.z = (Math.random() - 0.5) * 0.15;
const baseScale = grassSize + Math.random() * grassSize * 0.5;
const heightMult = 0.5 + Math.random() * 1.0;
dummy.scale.set(baseScale, baseScale * heightMult, baseScale);
dummy.updateMatrix();
meshRef.current.setMatrixAt(instanceIndex, dummy.matrix);
dummy.rotation.x = (Math.random() - 0.5) * 0.2;
dummy.rotation.z = (Math.random() - 0.5) * 0.2;
const noiseVal = noise2D(globalX * 0.02, globalZ * 0.02);
const t = (noiseVal + 1) / 2;
const randomInternal = (Math.random() - 0.5) * 0.2;
const finalT = Math.max(0, Math.min(1, t + randomInternal));
color.lerpColors(dryColorObj, lushColorObj, finalT);
meshRef.current.setColorAt(instanceIndex, color);
const macroHeightBonus = (noiseVal + 1.0) * 0.2;
const grassWidth = grassSize * (0.8 + Math.random() * 0.4);
const grassHeight = grassSize * (0.6 + Math.random() * 1.2 + macroHeightBonus);
const heightNoise = noise2D(globalX * 0.08, globalZ * 0.08);
const macroHeight = (heightNoise + 1.0) * 0.5; // 0..1
const microNoise = noise2D(globalX * 0.3, globalZ * 0.3);
const microHeight = (microNoise + 1.0) * 0.25; // 0..0.5
const perBladeRandom = Math.random() * 0.4;
const grassWidth = grassSize * (0.7 + Math.random() * 0.5);
const grassHeight = grassSize * (0.4 + macroHeight * 0.8 + microHeight + perBladeRandom);
dummy.scale.set(grassWidth, grassHeight, grassWidth);