SkidMarks

por edugamer69 Sáb Mar 12, 2016 8:02 pm

Tenho esse Script de um SkidMarks, mas ele não esta fazendo o efeito de derrapagem, porque ?

Código:: public class Skidmarks : MonoBehaviour { public int maxMarks = 1024; // Maximum number of marks total handled by one instance of the script. public float markWidth = 0.275f; // The width of the skidmarks. Should match the width of the wheel that it is used for. In meters. public float groundOffset = 0.02f; // The distance the skidmarks is places above the surface it is placed upon. In meters. public float minDistance = 0.1f; // The minimum distance between two marks places next to each other. int indexShift; int numMarks = 0; // Variables for each mark created. Needed to generate the correct mesh. class MarkSection{ public Vector3 pos = Vector3.zero; public Vector3 normal = Vector3.zero; public Vector4 tangent = Vector4.zero; public Vector3 posl = Vector3.zero; public Vector3 posr = Vector3.zero; public float intensity = 0.0f; public int lastIndex = 0; }; private MarkSection[] skidmarks; private bool updated = false; void Awake(){ InitSkidmarks(); } // Initiallizes the array holding the skidmark sections. void InitSkidmarks() { skidmarks = new MarkSection[maxMarks]; for (int i = 0; i < maxMarks; i++) skidmarks[i] = new MarkSection(); if (((MeshFilter) GetComponent (typeof(MeshFilter))).mesh == null) ((MeshFilter) GetComponent (typeof(MeshFilter))).mesh = new Mesh(); } // Function called by the wheels that is skidding. Gathers all the information needed to // create the mesh later. Sets the intensity of the skidmark section b setting the alpha // of the vertex color. public int AddSkidMark(Vector3 pos, Vector3 normal, float intensity, int lastIndex) { if (skidmarks==null) InitSkidmarks(); if(intensity > 1) intensity = 1.0f; if(intensity <= 0) return -1; MarkSection curr = skidmarks[numMarks % maxMarks]; curr.pos = pos + normal * groundOffset; curr.normal = normal; curr.intensity = intensity; curr.lastIndex = lastIndex; if(lastIndex != -1) { MarkSection last = skidmarks[lastIndex % maxMarks]; Vector3 dir = (curr.pos - last.pos); Vector3 xDir = Vector3.Cross(dir,normal).normalized; curr.posl = curr.pos + xDir * markWidth * 0.5f; curr.posr = curr.pos - xDir * markWidth * 0.5f; curr.tangent = new Vector4(xDir.x, xDir.y, xDir.z, 1); if(last.lastIndex == -1) { last.tangent = curr.tangent; last.posl = curr.pos + xDir * markWidth * 0.5f; last.posr = curr.pos - xDir * markWidth * 0.5f; } } numMarks++; updated = true; return numMarks -1; } // If the mesh needs to be updated, i.e. a new section has been added, // the current mesh is removed, and a new mesh for the skidmarks is generated. void LateUpdate() { if(!updated) { return; } updated = false; Mesh mesh = ((MeshFilter) GetComponent (typeof(MeshFilter))).mesh; mesh.Clear(); int segmentCount = 0; for(int j = 0; j < numMarks && j < maxMarks; j++) if(skidmarks[j].lastIndex != -1 && skidmarks[j].lastIndex > numMarks - maxMarks) segmentCount++; Vector3[] vertices = new Vector3[segmentCount * 4]; Vector3[] normals = new Vector3[segmentCount * 4]; Vector4[] tangents = new Vector4[segmentCount * 4]; Color[] colors = new Color[segmentCount * 4]; Vector2[] uvs = new Vector2[segmentCount * 4]; int[] triangles = new int[segmentCount * 6]; segmentCount = 0; for(int i = 0; i < numMarks && i < maxMarks; i++) if(skidmarks[i].lastIndex != -1 && skidmarks[i].lastIndex > numMarks - maxMarks) { MarkSection curr = skidmarks[i]; MarkSection last = skidmarks[curr.lastIndex % maxMarks]; vertices[segmentCount * 4 + 0] = last.posl; vertices[segmentCount * 4 + 1] = last.posr; vertices[segmentCount * 4 + 2] = curr.posl; vertices[segmentCount * 4 + 3] = curr.posr; normals[segmentCount * 4 + 0] = last.normal; normals[segmentCount * 4 + 1] = last.normal; normals[segmentCount * 4 + 2] = curr.normal; normals[segmentCount * 4 + 3] = curr.normal; tangents[segmentCount * 4 + 0] = last.tangent; tangents[segmentCount * 4 + 1] = last.tangent; tangents[segmentCount * 4 + 2] = curr.tangent; tangents[segmentCount * 4 + 3] = curr.tangent; colors[segmentCount * 4 + 0]=new Color(0, 0, 0, last.intensity); colors[segmentCount * 4 + 1]=new Color(0, 0, 0, last.intensity); colors[segmentCount * 4 + 2]=new Color(0, 0, 0, curr.intensity); colors[segmentCount * 4 + 3]=new Color(0, 0, 0, curr.intensity); uvs[segmentCount * 4 + 0] = new Vector2(0, 0); uvs[segmentCount * 4 + 1] = new Vector2(1, 0); uvs[segmentCount * 4 + 2] = new Vector2(0, 1); uvs[segmentCount * 4 + 3] = new Vector2(1, 1); triangles[segmentCount * 6 + 0] = segmentCount * 4 + 0; triangles[segmentCount * 6 + 2] = segmentCount * 4 + 1; triangles[segmentCount * 6 + 1] = segmentCount * 4 + 2; triangles[segmentCount * 6 + 3] = segmentCount * 4 + 2; triangles[segmentCount * 6 + 5] = segmentCount * 4 + 1; triangles[segmentCount * 6 + 4] = segmentCount * 4 + 3; segmentCount++; } mesh.vertices=vertices; mesh.normals=normals; mesh.tangents=tangents; mesh.triangles=triangles; mesh.colors=colors; mesh.uv=uvs; } }

por **MarcosSchultz** Sáb Mar 12, 2016 8:04 pm

Sei lah, o script parece normal, más cade o shader???

Se for utilizar o Standard da Unity, vai ficar bugado pra caramba, talvez nem apareça

SkidMarks

SkidMarks

Re: SkidMarks