private GrassEntity GenerateOnePlantSegment(float yEulerAngle, float xScale, float xPos,
float zPos, float minUv, float maxUv, float randSeed)
{
var obj = new GrassEntity
{
Rotation = MyMathUtils.DegToRad(new Vector3(0, yEulerAngle, 0)),
Scale = new Vector3(xScale, 1, 1),
Position = new Vector3(xPos, 0, zPos)
};
obj.AddUniform(GrassShaderUniformName._MinUv, minUv);
obj.AddUniform(GrassShaderUniformName._MaxUv, maxUv);
obj.AddUniform(GrassShaderUniformName._RandSeed, randSeed);
return(obj);
}
public GrassEntitiesSet GenerateStarTuft(int elementsInTuftCount = 3)
{
var entities = new List <GrassEntity>();
for (int i = 0; i < elementsInTuftCount; i++)
{
var obj = new GrassEntity {
Rotation = MyMathUtils.DegToRad(new Vector3(0, 0, ((float)i) / elementsInTuftCount * 180))
};
obj.AddUniform(GrassShaderUniformName._MinUv, 0);
obj.AddUniform(GrassShaderUniformName._MaxUv, 1);
obj.AddUniform(GrassShaderUniformName._RandSeed, UnityEngine.Random.value);
entities.Add(obj);
}
return(new GrassEntitiesSet(entities));
}
public GrassEntitiesWithMaterials GenerateUniformRectangeBillboardGrass(Material material, IGrassPlacer placer, int lodLevel)
{
List <GrassEntity> createdEntities = new List <GrassEntity>();
var billboardGenerator = new GrassBillboardGenerator();
var meshGenerator = new GrassMeshGenerator();
var mesh = meshGenerator.GetGrassBillboardMesh(0, 1);
for (int i = 0; i < 75; i++)
{
var triangleTurf = billboardGenerator.GenerateTriangleTurf(); //todo : use grass entities set and rotate
triangleTurf.Rotation = (MyMathUtils.DegToRad(new Vector3(0, UnityEngine.Random.Range(0, 360), 0)));
placer.Set(triangleTurf);
createdEntities.AddRange(triangleTurf.EntitiesAfterTransform);
}
return(null); // new GrassEntitiesWithMaterials(createdEntities, material, mesh);
}