private static Material CreateMaterial(IMeshSampler sampler, VertexTex vtex,
Texture2D posTex = null, Texture2D normTex = null, Renderer renderer = null)
{
Material mat = new Material(Shader.Find(ShaderConst.SHADER_NAME));
if (renderer != null && renderer.sharedMaterial != null)
{
mat.mainTexture = renderer.sharedMaterial.mainTexture;
}
if (posTex != null)
{
mat.SetTexture(ShaderConst.SHADER_ANIM_TEX, posTex);
}
mat.SetVector(ShaderConst.SHADER_SCALE, vtex.scale);
mat.SetVector(ShaderConst.SHADER_OFFSET, vtex.offset);
mat.SetVector(ShaderConst.SHADER_ANIM_END, new Vector4(sampler.Length, vtex.verticesList.Count - 1, 0f, 0f));
mat.SetFloat(ShaderConst.SHADER_FPS, FPS);
if (normTex != null)
{
mat.SetTexture(ShaderConst.SHADER_NORM_TEX, normTex);
}
return(mat);
}
public VertexTex(IMeshSampler sample)
{
verticesList = new List <Vector3[]> ();
normalsList = new List <Vector3[]> ();
for (float t = 0; t < (sample.Length + DT); t += DT)
{
var combinedMesh = sample.Sample(t);
verticesList.Add(combinedMesh.vertices);
normalsList.Add(combinedMesh.normals);
}
var firstVertices = verticesList[0];
var firstVertex = firstVertices[0];
var vertexCount = firstVertices.Length;
frameEnd = vertexCount - 1;
var minX = firstVertex.x;
var minY = firstVertex.y;
var minZ = firstVertex.z;
var maxX = firstVertex.x;
var maxY = firstVertex.y;
var maxZ = firstVertex.z;
foreach (var vertices in verticesList)
{
for (var i = 0; i < vertices.Length; i++)
{
var v = vertices [i];
minX = Mathf.Min(minX, v.x);
minY = Mathf.Min(minY, v.y);
minZ = Mathf.Min(minZ, v.z);
maxX = Mathf.Max(maxX, v.x);
maxY = Mathf.Max(maxY, v.y);
maxZ = Mathf.Max(maxZ, v.z);
}
}
scale = new Vector4(maxX - minX, maxY - minY, maxZ - minZ, 1f);
offset = new Vector4(minX, minY, minZ, 1f);
Debug.LogFormat("Scale={0} Offset={1}", scale, offset);
var texWidth = LargerInPow2(vertexCount);
var texHeight = LargerInPow2(verticesList.Count * 2);
Debug.Log(string.Format("tex({0}x{1}), nVertices={2} nFrames={3}", texWidth, texHeight, vertexCount, verticesList.Count));
positionTex = new Texture2D(texWidth, texHeight, TextureFormat.RGB24, false, true);
positionTex.filterMode = ANIM_TEX_FILTER;
positionTex.wrapMode = TextureWrapMode.Clamp;
normalTex = new Texture2D(texWidth, texHeight, TextureFormat.RGB24, false, true);
normalTex.filterMode = ANIM_TEX_FILTER;
normalTex.wrapMode = TextureWrapMode.Clamp;
uv2 = new Vector2[vertexCount];
var texSize = new Vector2(1f / texWidth, 1f / texHeight);
var halfTexOffset = 0.5f * texSize;
for (int i = 0; i < uv2.Length; i++)
{
uv2 [i] = new Vector2((float)i * texSize.x, 0f) + halfTexOffset;
}
for (int y = 0; y < verticesList.Count; y++)
{
Vector3[] vertices = verticesList [y];
Vector3[] normals = normalsList [y];
for (int x = 0; x < vertices.Length; x++)
{
var pos = Normalize(vertices [x], offset, scale);
Color c0, c1;
Encode(pos, out c0, out c1);
positionTex.SetPixel(x, y, c0);
positionTex.SetPixel(x, y + (texHeight >> 1), c1);
var normal = 0.5f * (normals [x].normalized + Vector3.one);
Encode(normal, out c0, out c1);
normalTex.SetPixel(x, y, c0);
normalTex.SetPixel(x, y + (texHeight >> 1), c1);
}
}
positionTex.Apply();
normalTex.Apply();
}