SurfaceFluidRenderData.h

浏览该文件的文档.

#pragma once
#include "common/Export.h"
 
 
#include "fluids/SurfaceDropletSimulation.h"
 
#include <glm/glm.hpp>
 
#include <cstdint>
#include <vector>
 
namespace eve::fluids {
 
struct WetSurfaceMaterialParams {
    float dryRoughness = 0.48f;
    float wetRoughness = 0.08f;
    float drySpecular = 0.35f;
    float wetSpecular = 0.92f;
    float wetDarkening = 0.12f;
    float normalStrength = 0.18f;
};
 
struct WetSurfaceMaterialSample {
    float wetness = 0.f;
    float roughness = 0.48f;
    float specular = 0.35f;
    float darkening = 0.f;
    float normalStrength = 0.f;
};
 
struct SurfaceDropletRenderInstance {
    uint64_t  id = 0;
    glm::vec3 position{0.f};
    glm::vec3 normal{0.f, 1.f, 0.f};
    glm::vec3 majorAxis{1.f, 0.f, 0.f};
    glm::vec3 minorAxis{0.f, 0.f, 1.f};
    glm::vec3 velocity{0.f};
    float     capHeight = 0.f;
    float     wetness = 0.f;
};
 
struct SurfaceFluidRenderParams {
    float velocityStretch = 0.30f;
    float maxAspectRatio = 2.6f;
    float surfaceOffset = 0.001f;
    WetSurfaceMaterialParams wetMaterial;
};
 
class EVENGINE_API_DOMAINS SurfaceFluidRenderData {
public:
    void update(const FluidSurfaceBinding& binding, const SurfaceDropletSimulation& simulation,
                const SurfaceWetnessField* wetness = nullptr,
                const SurfaceFluidRenderParams& params = {});
 
    static WetSurfaceMaterialSample evaluateMaterial(float wetness,
        const WetSurfaceMaterialParams& params = {});
 
    const std::vector<SurfaceDropletRenderInstance>& droplets() const { return droplets_; }
 
private:
    std::vector<SurfaceDropletRenderInstance> droplets_;
};
 
}  // namespace eve::fluids