VegetationRender.h

浏览该文件的文档.

#pragma once
#include <array>
#include <cstdint>
#include <span>
#include "common/Export.h"
#include "common/Result.h"
#include "graphics/PbrSurface.h"
 
namespace eve::graphics {
class Graphics;
class Mesh;
class Material;
class VegetationField;
struct VegetationVertex;
struct VegetationMotion;
struct VegetationSample;
 
struct VegetationSurface {
    std::array<float, 4> albedo{1, 1, 1, 1};
    std::array<float, 3> overlayColor{1, 1, 1}, emission{0, 0, 0}, vertexOcclusionColor{1, 1, 1};
    float                roughness = 0.65f, overlaySmoothness = .5f;
    float                wetnessCoverage = 1.f, wetnessContrast = .5f, overlayCoverage = 1.f, overlayVariation = .5f;
    float                overlayProjection = .5f, vertexOcclusionAlpha = .5019608f, alphaCutoff = .5f;
    float                overlayNormalScale = .5f, wetnessNormalScale = .5f;
    float                overlaySubsurface = .5f;
    float                colorsCoverage = 1.f, colorsIntensity = 1.f, colorsMask = 1.f, colorsVariation = .5f;
    float                vertexOcclusionMinimum = 0.f, vertexOcclusionMaximum = 1.f;
    bool                 invertVertexOcclusion = false, invertVertexOcclusionColors = false;
    PbrVegetationBackfaceNormalMode backfaceNormalMode = PbrVegetationBackfaceNormalMode::Flip;
};
 
[[nodiscard]] EVENGINE_API_BACKENDS Result<void> updateVegetationMesh(
    Graphics& graphics, Mesh& mesh, const VegetationField& field, std::span<const VegetationVertex> vertices,
    const VegetationMotion& motion, std::span<const float> texcoords, std::span<const uint32_t> indices);
 
[[nodiscard]] EVENGINE_API_BACKENDS Result<void> applyVegetationSurface(Material&                material,
                                                                        const VegetationSample&  sample,
                                                                        const VegetationSurface& surface);
}  // namespace eve::graphics