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Yggdrasil75
2026-01-30 14:56:26 -05:00
parent 9a87eeb355
commit 2006fd5f57
1 changed files with 0 additions and 52 deletions
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tests/g3etest.cpp
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@@ -293,58 +293,6 @@ void updateNoiseTexture(NoisePreviewState& state) {
state.needsUpdate = false; state.needsUpdate = false;
} }
float calculateNoiseValue(const NoisePreviewState& state, float x, float y) {
PNoise2 generator(state.masterSeed);
// Initial Coordinate
float nx = (x + state.offset[0]);
float ny = (y + state.offset[1]);
Eigen::Vector2f point(nx, ny);
float finalValue = 0.0f;
// Process Layer Stack
for (const auto& layer : state.layers) {
if (!layer.enabled) continue;
// Adjust coordinate frequency for this layer
Eigen::Vector2f samplePoint = point * layer.scale;
// Seed offset
samplePoint += Eigen::Vector2f((float)layer.seedOffset * 10.5f, (float)layer.seedOffset * -10.5f);
// Domain Warp / Curl
if (layer.blend == BlendMode::DomainWarp) {
if (layer.type == NoiseType::CurlNoise) {
Eigen::Vector2f flow = generator.curlNoise(samplePoint);
point += flow * layer.strength * 100.0f;
} else {
float warpX = sampleNoiseLayer(generator, layer.type, samplePoint, layer);
float warpY = sampleNoiseLayer(generator, layer.type, samplePoint + Eigen::Vector2f(5.2f, 1.3f), layer);
point += Eigen::Vector2f(warpX, warpY) * layer.strength * 100.0f;
}
continue;
}
// Standard Arithmetic Layers
float nVal = sampleNoiseLayer(generator, layer.type, samplePoint, layer);
switch (layer.blend) {
case BlendMode::Replace: finalValue = nVal * layer.strength; break;
case BlendMode::Add: finalValue += nVal * layer.strength; break;
case BlendMode::Subtract:finalValue -= nVal * layer.strength; break;
case BlendMode::Multiply:finalValue *= (nVal * layer.strength); break;
case BlendMode::Max: finalValue = std::max(finalValue, nVal * layer.strength); break;
case BlendMode::Min: finalValue = std::min(finalValue, nVal * layer.strength); break;
}
}
// Normalize -1..1 (or unbounded) to 0..1
float norm = std::tanh(finalValue);
norm = (norm + 1.0f) * 0.5f;
return std::clamp(norm, 0.0f, 1.0f);
}
void createSphere(const defaults& config, const spheredefaults& sconfig, Octree<int>& grid) { void createSphere(const defaults& config, const spheredefaults& sconfig, Octree<int>& grid) {
if (!grid.empty()) grid.clear(); if (!grid.empty()) grid.clear();