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C# Quaternion.ToDirection方法代码示例

本文整理汇总了C#中Quaternion.ToDirection方法的典型用法代码示例。如果您正苦于以下问题:C# Quaternion.ToDirection方法的具体用法?C# Quaternion.ToDirection怎么用?C# Quaternion.ToDirection使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Quaternion的用法示例。


在下文中一共展示了Quaternion.ToDirection方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: CreateNode

        private static NodeOut CreateNode(Vector3 origin, Quaternion rotation, float minNodesAngle, float maxNodesAngle, int maxNodesCountPerLevel, float scale, int iterations, float scaleDescendant, bool addLeaves, List<VEngine.Mesh3d.Bone> boneSystem = null, VEngine.Mesh3d.Bone boneParent = null)
        {
            List<Mesh3d> elements = new List<Mesh3d>();
            List<Mesh3d> leafs = new List<Mesh3d>();
            float nodeModelHeight = Node.GetAxisAlignedBox().Y * scale;
            var currentBone = new Mesh3d.Bone();
            if(boneSystem != null)
            {
                currentBone = new Mesh3d.Bone()
                {
                    Head = origin,
                    Tail = origin + Vector3.Transform(Vector3.UnitY * nodeModelHeight, rotation),
                    Name = boneParent.Name == "rootofroot" ? "root" : "bone" + boneSystem.Count.ToString(),
                    Orientation = Quaternion.Identity,
                    Parent = boneParent,
                    ParentName = boneParent.Name
                };
            }
            if(iterations > 1)
            {
                var root = new Mesh3d(Node, NodeMaterial);
                root.Translate(origin);
                root.Scale(scale);
                root.Rotate(rotation);
                elements.Add(root);
                if(boneSystem != null)
                {
                    boneSystem.Add(currentBone);
                }
            }

            Vector3 direction = rotation.ToDirection(Vector3.UnitY);
            Vector3 tgLeft = rotation.ToDirection(Vector3.UnitZ);
            if(iterations > 0)
            {
                for(int i = 0; i < maxNodesCountPerLevel; i++)
                {
                    var randomOrigin = origin + (direction * nodeModelHeight * (Rand() * 0.5f + 0.5f));

                    float sign1 = Rand() > 0.5f ? -1 : 1;
                    float angle = Mix(minNodesAngle, maxNodesAngle, Rand()) * sign1;
                    var rotLeft = Quaternion.FromAxisAngle(tgLeft, angle);
                    var rotForward = Quaternion.FromAxisAngle(direction, MathHelper.TwoPi * Rand());

                    var randomRotation = Quaternion.Multiply(rotForward, Quaternion.Multiply(rotLeft, rotation));
                    var single = CreateNode(randomOrigin, randomRotation, minNodesAngle, maxNodesAngle, maxNodesCountPerLevel, scale * (Rand() * 0.2f + scaleDescendant), iterations - 1, scaleDescendant, addLeaves, boneSystem, currentBone);
                    elements.AddRange(single.Nodes);
                    leafs.AddRange(single.Leafs);
                }
            }
            if(iterations < 2 && addLeaves)
            {
                for(int i = 0; i < 12; i++)
                {
                    var randomOrigin = origin + (direction * nodeModelHeight * (Rand()));
                    randomOrigin += (new Vector3(Rand(), Rand(), Rand()) - new Vector3(0.5f)) * 1.0f;

                    float sign1 = Rand() > 0.5f ? -1 : 1;
                    float angle = Mix(minNodesAngle, maxNodesAngle, Rand()) * sign1;
                    var rotLeft = Quaternion.FromAxisAngle(tgLeft, angle);
                    var rotForward = Quaternion.FromAxisAngle(direction, MathHelper.TwoPi * Rand());

                    var randomRotation = Quaternion.Multiply(rotForward, Quaternion.Multiply(rotLeft, rotation));
                    var leaf = new Mesh3d(Leaf, LeafMaterial);
                    leaf.Translate(randomOrigin);
                    leaf.Scale(Rand() * 1.5f + 0.4f);
                    leaf.Rotate(randomRotation);
                    leafs.Add(leaf);
                }
            }

            return new NodeOut()
            {
                Nodes = elements,
                Leafs = leafs
            };
        }
开发者ID:yanko,项目名称:vengine,代码行数:77,代码来源:TreeGenerator.cs


注:本文中的Quaternion.ToDirection方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。