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feat(editor): detail noise for adding small-scale terrain roughness

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- Detail Noise: adds high-frequency roughness to existing terrain
  without destroying the overall shape (amplitude 0.5-10, freq 0.01-0.5)
- Useful after smooth/generate to break up unnaturally smooth surfaces
- Workflow: generate → smooth → detail noise for natural look
- Separate seed from main noise generator for independent control
This commit is contained in:
Kelsi 2026-05-05 08:20:54 -07:00
parent fab77952a6
commit 3504e57f75
3 changed files with 41 additions and 0 deletions
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15
tools/editor/editor_ui.cpp
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@ -651,6 +651,21 @@ void EditorUI::renderBrushPanel(EditorApp& app) {
ImGui::TextColored(ImVec4(0.6f, 0.6f, 0.6f, 1), "No stamp copied");
}
if (ImGui::CollapsingHeader("Detail Noise")) {
static float detailAmp = 2.0f, detailFreq = 0.1f;
static int detailSeed = 99;
ImGui::SliderFloat("Amplitude##detail", &detailAmp, 0.5f, 10.0f);
ImGui::SliderFloat("Frequency##detail", &detailFreq, 0.01f, 0.5f, "%.3f");
ImGui::InputInt("Seed##detail", &detailSeed);
if (ImGui::Button("Add Detail", ImVec2(-1, 0))) {
app.getTerrainEditor().addDetailNoise(detailAmp, detailFreq,
static_cast<uint32_t>(detailSeed));
app.showToast("Detail noise added");
}
ImGui::TextColored(ImVec4(0.6f, 0.6f, 0.6f, 1),
"Adds small-scale roughness to existing terrain");
}
if (ImGui::CollapsingHeader("Edge Ramp (Multi-tile)")) {
static float rampTarget = 100.0f, rampWidth = 20.0f;
ImGui::SliderFloat("Target Height##ramp", &rampTarget, 0.0f, 500.0f);