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https://github.com/Kelsidavis/WoWee.git
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59c6dab2b3
- Auto-Paint by Slope: paints rock texture on steep terrain surfaces with configurable slope threshold (0.1 - 0.9) - Uses per-vertex normal Z component to detect steepness - Alpha blending based on slope gradient for smooth transitions - Workflow: sculpt terrain → recalc normals → auto-paint slope → rock appears naturally on cliffs while flat areas keep their biome texture
51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
#pragma once
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#include "editor_brush.hpp"
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#include "pipeline/adt_loader.hpp"
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#include <string>
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#include <vector>
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#include <glm/glm.hpp>
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namespace wowee {
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namespace editor {
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class TexturePainter {
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public:
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void setTerrain(pipeline::ADTTerrain* terrain) { terrain_ = terrain; }
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void setActiveTexture(const std::string& texturePath);
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const std::string& getActiveTexture() const { return activeTexture_; }
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const std::vector<std::string>& getRecentTextures() const { return recentTextures_; }
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// Auto-paint textures based on terrain height bands
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struct HeightBand { float maxHeight; std::string texturePath; };
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void autoPaintByHeight(const std::vector<HeightBand>& bands);
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// Auto-paint steep slopes with rock texture
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void autoPaintBySlope(float slopeThreshold, const std::string& steepTexture);
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// Paint the active texture at the given world position
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// Returns list of modified chunk indices
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std::vector<int> paint(const glm::vec3& center, float radius, float strength, float falloff);
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// Erase a texture layer at the given position
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std::vector<int> erase(const glm::vec3& center, float radius, float strength, float falloff);
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private:
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uint32_t ensureTextureInList(const std::string& path);
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int ensureLayerOnChunk(int chunkIdx, uint32_t textureId);
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void modifyAlpha(int chunkIdx, int layerIdx, const glm::vec3& center,
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float radius, float strength, float falloff, bool erasing);
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glm::vec2 worldToChunkUV(int chunkIdx, const glm::vec3& worldPos) const;
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pipeline::ADTTerrain* terrain_ = nullptr;
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std::string activeTexture_;
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std::vector<std::string> recentTextures_;
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static constexpr float TILE_SIZE = 533.33333f;
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static constexpr float CHUNK_SIZE = TILE_SIZE / 16.0f;
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};
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} // namespace editor
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} // namespace wowee
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