From 5d1e9947ed43490fb458af62bd9e8596a816f7b8 Mon Sep 17 00:00:00 2001 From: dahlia Date: Thu, 6 May 2010 21:36:27 -0700 Subject: Sculpt meshing refactoring - improves mesh accuracy and UV mapping Sync with PrimMesher r55 --- OpenSim/Region/Physics/Meshing/SculptMap.cs | 169 ++++ OpenSim/Region/Physics/Meshing/SculptMesh.cs | 1280 +++++++++++++------------- 2 files changed, 810 insertions(+), 639 deletions(-) create mode 100644 OpenSim/Region/Physics/Meshing/SculptMap.cs (limited to 'OpenSim/Region/Physics/Meshing') diff --git a/OpenSim/Region/Physics/Meshing/SculptMap.cs b/OpenSim/Region/Physics/Meshing/SculptMap.cs new file mode 100644 index 0000000..4d3f82b --- /dev/null +++ b/OpenSim/Region/Physics/Meshing/SculptMap.cs @@ -0,0 +1,169 @@ +/* + * Copyright (c) Contributors + * See CONTRIBUTORS.TXT for a full list of copyright holders. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the OpenSimulator Project nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +// to build without references to System.Drawing, comment this out +#define SYSTEM_DRAWING + +using System; +using System.Collections.Generic; +using System.Text; + +#if SYSTEM_DRAWING +using System.Drawing; +using System.Drawing.Imaging; + +namespace PrimMesher +{ + public class SculptMap + { + public int width; + public int height; + public byte[] redBytes; + public byte[] greenBytes; + public byte[] blueBytes; + + public SculptMap() + { + } + + public SculptMap(Bitmap bm, int lod) + { + int bmW = bm.Width; + int bmH = bm.Height; + + if (bmW == 0 || bmH == 0) + throw new Exception("SculptMap: bitmap has no data"); + + int numLodPixels = lod * 2 * lod * 2; // (32 * 2)^2 = 64^2 pixels for default sculpt map image + + width = bmW; + height = bmH; + while (width * height > numLodPixels) + { + width >>= 1; + height >>= 1; + } + + width >>= 1; + height >>= 1; + + try + { + if (!(bmW == width * 2 && bmH == height * 2)) + bm = ScaleImage(bm, width * 2, height * 2, + System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor); + } + + catch (Exception e) + { + throw new Exception("Exception in ScaleImage(): e: " + e.ToString()); + } + + + int numBytes = (width + 1) * (height + 1); + redBytes = new byte[numBytes]; + greenBytes = new byte[numBytes]; + blueBytes = new byte[numBytes]; + + int byteNdx = 0; + + try + { + for (int y = 0; y <= height; y++) + { + for (int x = 0; x <= width; x++) + { + int bmY = y < height ? y * 2 : y * 2 - 1; + int bmX = x < width ? x * 2 : x * 2 - 1; + Color c = bm.GetPixel(bmX, bmY); + + redBytes[byteNdx] = c.R; + greenBytes[byteNdx] = c.G; + blueBytes[byteNdx] = c.B; + + ++byteNdx; + } + } + } + catch (Exception e) + { + throw new Exception("Caught exception processing byte arrays in SculptMap(): e: " + e.ToString()); + } + + width++; + height++; + } + + public List> ToRows(bool mirror) + { + int numRows = height; + int numCols = width; + + List> rows = new List>(numRows); + + float pixScale = 1.0f / 255; + + int rowNdx, colNdx; + int smNdx = 0; + + for (rowNdx = 0; rowNdx < numRows; rowNdx++) + { + List row = new List(numCols); + for (colNdx = 0; colNdx < numCols; colNdx++) + { + if (mirror) + row.Add(new Coord(-(redBytes[smNdx] * pixScale - 0.5f), (greenBytes[smNdx] * pixScale - 0.5f), blueBytes[smNdx] * pixScale - 0.5f)); + else + row.Add(new Coord(redBytes[smNdx] * pixScale - 0.5f, greenBytes[smNdx] * pixScale - 0.5f, blueBytes[smNdx] * pixScale - 0.5f)); + + ++smNdx; + } + rows.Add(row); + } + return rows; + } + + private Bitmap ScaleImage(Bitmap srcImage, int destWidth, int destHeight, + System.Drawing.Drawing2D.InterpolationMode interpMode) + { + Bitmap scaledImage = new Bitmap(srcImage, destWidth, destHeight); + scaledImage.SetResolution(96.0f, 96.0f); + + Graphics grPhoto = Graphics.FromImage(scaledImage); + grPhoto.InterpolationMode = interpMode; + + grPhoto.DrawImage(srcImage, + new Rectangle(0, 0, destWidth, destHeight), + new Rectangle(0, 0, srcImage.Width, srcImage.Height), + GraphicsUnit.Pixel); + + grPhoto.Dispose(); + return scaledImage; + } + } +} +#endif diff --git a/OpenSim/Region/Physics/Meshing/SculptMesh.cs b/OpenSim/Region/Physics/Meshing/SculptMesh.cs index ebc5be6..06606c3 100644 --- a/OpenSim/Region/Physics/Meshing/SculptMesh.cs +++ b/OpenSim/Region/Physics/Meshing/SculptMesh.cs @@ -1,645 +1,647 @@ -/* - * Copyright (c) Contributors - * See CONTRIBUTORS.TXT for a full list of copyright holders. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the OpenSimulator Project nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -// to build without references to System.Drawing, comment this out -#define SYSTEM_DRAWING - -using System; -using System.Collections.Generic; -using System.Text; -using System.IO; - -#if SYSTEM_DRAWING -using System.Drawing; -using System.Drawing.Imaging; -#endif - -namespace PrimMesher -{ - - public class SculptMesh - { - public List coords; - public List faces; - - public List viewerFaces; - public List normals; - public List uvs; - - public enum SculptType { sphere = 1, torus = 2, plane = 3, cylinder = 4 }; - -#if SYSTEM_DRAWING - private Bitmap ScaleImage(Bitmap srcImage, float scale, bool removeAlpha) - { - int sourceWidth = srcImage.Width; - int sourceHeight = srcImage.Height; - int sourceX = 0; - int sourceY = 0; - - int destX = 0; - int destY = 0; - int destWidth = (int)(srcImage.Width * scale); - int destHeight = (int)(srcImage.Height * scale); - - Bitmap scaledImage; - - if (removeAlpha) - { - if (srcImage.PixelFormat == PixelFormat.Format32bppArgb) - for (int y = 0; y < srcImage.Height; y++) - for (int x = 0; x < srcImage.Width; x++) - { - Color c = srcImage.GetPixel(x, y); - srcImage.SetPixel(x, y, Color.FromArgb(255, c.R, c.G, c.B)); - } - - scaledImage = new Bitmap(destWidth, destHeight, - PixelFormat.Format24bppRgb); - } - else - scaledImage = new Bitmap(srcImage, destWidth, destHeight); - - scaledImage.SetResolution(96.0f, 96.0f); - - Graphics grPhoto = Graphics.FromImage(scaledImage); - grPhoto.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.Low; - - grPhoto.DrawImage(srcImage, - new Rectangle(destX, destY, destWidth, destHeight), - new Rectangle(sourceX, sourceY, sourceWidth, sourceHeight), - GraphicsUnit.Pixel); - - grPhoto.Dispose(); - return scaledImage; - } - - - public SculptMesh SculptMeshFromFile(string fileName, SculptType sculptType, int lod, bool viewerMode) - { - Bitmap bitmap = (Bitmap)Bitmap.FromFile(fileName); - SculptMesh sculptMesh = new SculptMesh(bitmap, sculptType, lod, viewerMode); - bitmap.Dispose(); - return sculptMesh; - } - - public SculptMesh(string fileName, int sculptType, int lod, int viewerMode, int mirror, int invert) - { - Bitmap bitmap = (Bitmap)Bitmap.FromFile(fileName); - _SculptMesh(bitmap, (SculptType)sculptType, lod, viewerMode != 0, mirror != 0, invert != 0); - bitmap.Dispose(); - } -#endif - - /// - /// ** Experimental ** May disappear from future versions ** not recommeneded for use in applications - /// Construct a sculpt mesh from a 2D array of floats - /// - /// - /// - /// - /// - /// - /// - public SculptMesh(float[,] zMap, float xBegin, float xEnd, float yBegin, float yEnd, bool viewerMode) - { - float xStep, yStep; - float uStep, vStep; - - int numYElements = zMap.GetLength(0); - int numXElements = zMap.GetLength(1); - - try - { - xStep = (xEnd - xBegin) / (float)(numXElements - 1); - yStep = (yEnd - yBegin) / (float)(numYElements - 1); - - uStep = 1.0f / (numXElements - 1); - vStep = 1.0f / (numYElements - 1); - } - catch (DivideByZeroException) - { - return; - } - - coords = new List(); - faces = new List(); - normals = new List(); - uvs = new List(); - - viewerFaces = new List(); - - int p1, p2, p3, p4; - - int x, y; - int xStart = 0, yStart = 0; - - for (y = yStart; y < numYElements; y++) - { - int rowOffset = y * numXElements; - - for (x = xStart; x < numXElements; x++) - { +/* + * Copyright (c) Contributors + * See CONTRIBUTORS.TXT for a full list of copyright holders. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the OpenSimulator Project nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +// to build without references to System.Drawing, comment this out +#define SYSTEM_DRAWING + +using System; +using System.Collections.Generic; +using System.Text; +using System.IO; + +#if SYSTEM_DRAWING +using System.Drawing; +using System.Drawing.Imaging; +#endif + +namespace PrimMesher +{ + + public class SculptMesh + { + public List coords; + public List faces; + + public List viewerFaces; + public List normals; + public List uvs; + + public enum SculptType { sphere = 1, torus = 2, plane = 3, cylinder = 4 }; + +#if SYSTEM_DRAWING + + public SculptMesh SculptMeshFromFile(string fileName, SculptType sculptType, int lod, bool viewerMode) + { + Bitmap bitmap = (Bitmap)Bitmap.FromFile(fileName); + SculptMesh sculptMesh = new SculptMesh(bitmap, sculptType, lod, viewerMode); + bitmap.Dispose(); + return sculptMesh; + } + + + public SculptMesh(string fileName, int sculptType, int lod, int viewerMode, int mirror, int invert) + { + Bitmap bitmap = (Bitmap)Bitmap.FromFile(fileName); + _SculptMesh(bitmap, (SculptType)sculptType, lod, viewerMode != 0, mirror != 0, invert != 0); + bitmap.Dispose(); + } +#endif + + /// + /// ** Experimental ** May disappear from future versions ** not recommeneded for use in applications + /// Construct a sculpt mesh from a 2D array of floats + /// + /// + /// + /// + /// + /// + /// + public SculptMesh(float[,] zMap, float xBegin, float xEnd, float yBegin, float yEnd, bool viewerMode) + { + float xStep, yStep; + float uStep, vStep; + + int numYElements = zMap.GetLength(0); + int numXElements = zMap.GetLength(1); + + try + { + xStep = (xEnd - xBegin) / (float)(numXElements - 1); + yStep = (yEnd - yBegin) / (float)(numYElements - 1); + + uStep = 1.0f / (numXElements - 1); + vStep = 1.0f / (numYElements - 1); + } + catch (DivideByZeroException) + { + return; + } + + coords = new List(); + faces = new List(); + normals = new List(); + uvs = new List(); + + viewerFaces = new List(); + + int p1, p2, p3, p4; + + int x, y; + int xStart = 0, yStart = 0; + + for (y = yStart; y < numYElements; y++) + { + int rowOffset = y * numXElements; + + for (x = xStart; x < numXElements; x++) + { + /* + * p1-----p2 + * | \ f2 | + * | \ | + * | f1 \| + * p3-----p4 + */ + + p4 = rowOffset + x; + p3 = p4 - 1; + + p2 = p4 - numXElements; + p1 = p3 - numXElements; + + Coord c = new Coord(xBegin + x * xStep, yBegin + y * yStep, zMap[y, x]); + this.coords.Add(c); + if (viewerMode) + { + this.normals.Add(new Coord()); + this.uvs.Add(new UVCoord(uStep * x, 1.0f - vStep * y)); + } + + if (y > 0 && x > 0) + { + Face f1, f2; + + if (viewerMode) + { + f1 = new Face(p1, p4, p3, p1, p4, p3); + f1.uv1 = p1; + f1.uv2 = p4; + f1.uv3 = p3; + + f2 = new Face(p1, p2, p4, p1, p2, p4); + f2.uv1 = p1; + f2.uv2 = p2; + f2.uv3 = p4; + } + else + { + f1 = new Face(p1, p4, p3); + f2 = new Face(p1, p2, p4); + } + + this.faces.Add(f1); + this.faces.Add(f2); + } + } + } + + if (viewerMode) + calcVertexNormals(SculptType.plane, numXElements, numYElements); + } + +#if SYSTEM_DRAWING + public SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode) + { + _SculptMesh(sculptBitmap, sculptType, lod, viewerMode, false, false); + } + + public SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode, bool mirror, bool invert) + { + _SculptMesh(sculptBitmap, sculptType, lod, viewerMode, mirror, invert); + } +#endif + + public SculptMesh(List> rows, SculptType sculptType, bool viewerMode, bool mirror, bool invert) + { + _SculptMesh(rows, sculptType, viewerMode, mirror, invert); + } + +#if SYSTEM_DRAWING + /// + /// converts a bitmap to a list of lists of coords, while scaling the image. + /// the scaling is done in floating point so as to allow for reduced vertex position + /// quantization as the position will be averaged between pixel values. this routine will + /// likely fail if the bitmap width and height are not powers of 2. + /// + /// + /// + /// + /// + private List> bitmap2Coords(Bitmap bitmap, int scale, bool mirror) + { + int numRows = bitmap.Height / scale; + int numCols = bitmap.Width / scale; + List> rows = new List>(numRows); + + float pixScale = 1.0f / (scale * scale); + pixScale /= 255; + + int imageX, imageY = 0; + + int rowNdx, colNdx; + + for (rowNdx = 0; rowNdx < numRows; rowNdx++) + { + List row = new List(numCols); + for (colNdx = 0; colNdx < numCols; colNdx++) + { + imageX = colNdx * scale; + int imageYStart = rowNdx * scale; + int imageYEnd = imageYStart + scale; + int imageXEnd = imageX + scale; + float rSum = 0.0f; + float gSum = 0.0f; + float bSum = 0.0f; + for (; imageX < imageXEnd; imageX++) + { + for (imageY = imageYStart; imageY < imageYEnd; imageY++) + { + Color c = bitmap.GetPixel(imageX, imageY); + if (c.A != 255) + { + bitmap.SetPixel(imageX, imageY, Color.FromArgb(255, c.R, c.G, c.B)); + c = bitmap.GetPixel(imageX, imageY); + } + rSum += c.R; + gSum += c.G; + bSum += c.B; + } + } + if (mirror) + row.Add(new Coord(-(rSum * pixScale - 0.5f), gSum * pixScale - 0.5f, bSum * pixScale - 0.5f)); + else + row.Add(new Coord(rSum * pixScale - 0.5f, gSum * pixScale - 0.5f, bSum * pixScale - 0.5f)); + + } + rows.Add(row); + } + return rows; + } + + private List> bitmap2CoordsSampled(Bitmap bitmap, int scale, bool mirror) + { + int numRows = bitmap.Height / scale; + int numCols = bitmap.Width / scale; + List> rows = new List>(numRows); + + float pixScale = 1.0f / 256.0f; + + int imageX, imageY = 0; + + int rowNdx, colNdx; + + for (rowNdx = 0; rowNdx <= numRows; rowNdx++) + { + List row = new List(numCols); + imageY = rowNdx * scale; + if (rowNdx == numRows) imageY--; + for (colNdx = 0; colNdx <= numCols; colNdx++) + { + imageX = colNdx * scale; + if (colNdx == numCols) imageX--; + + Color c = bitmap.GetPixel(imageX, imageY); + if (c.A != 255) + { + bitmap.SetPixel(imageX, imageY, Color.FromArgb(255, c.R, c.G, c.B)); + c = bitmap.GetPixel(imageX, imageY); + } + + if (mirror) + row.Add(new Coord(-(c.R * pixScale - 0.5f), c.G * pixScale - 0.5f, c.B * pixScale - 0.5f)); + else + row.Add(new Coord(c.R * pixScale - 0.5f, c.G * pixScale - 0.5f, c.B * pixScale - 0.5f)); + + } + rows.Add(row); + } + return rows; + } + + + void _SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode, bool mirror, bool invert) + { + _SculptMesh(new SculptMap(sculptBitmap, lod).ToRows(mirror), sculptType, viewerMode, mirror, invert); + } +#endif + + void _SculptMesh(List> rows, SculptType sculptType, bool viewerMode, bool mirror, bool invert) + { + coords = new List(); + faces = new List(); + normals = new List(); + uvs = new List(); + + sculptType = (SculptType)(((int)sculptType) & 0x07); + + if (mirror) + if (sculptType == SculptType.plane) + invert = !invert; + + viewerFaces = new List(); + + int width = rows[0].Count; + + int p1, p2, p3, p4; + + int imageX, imageY; + + if (sculptType != SculptType.plane) + { + if (rows.Count % 2 == 0) + { + for (int rowNdx = 0; rowNdx < rows.Count; rowNdx++) + rows[rowNdx].Add(rows[rowNdx][0]); + } + else + { + int lastIndex = rows[0].Count - 1; + + for (int i = 0; i < rows.Count; i++) + rows[i][0] = rows[i][lastIndex]; + } + } + + Coord topPole = rows[0][width / 2]; + Coord bottomPole = rows[rows.Count - 1][width / 2]; + + if (sculptType == SculptType.sphere) + { + if (rows.Count % 2 == 0) + { + int count = rows[0].Count; + List topPoleRow = new List(count); + List bottomPoleRow = new List(count); + + for (int i = 0; i < count; i++) + { + topPoleRow.Add(topPole); + bottomPoleRow.Add(bottomPole); + } + rows.Insert(0, topPoleRow); + rows.Add(bottomPoleRow); + } + else + { + int count = rows[0].Count; + + List topPoleRow = rows[0]; + List bottomPoleRow = rows[rows.Count - 1]; + + for (int i = 0; i < count; i++) + { + topPoleRow[i] = topPole; + bottomPoleRow[i] = bottomPole; + } + } + } + + if (sculptType == SculptType.torus) + rows.Add(rows[0]); + + int coordsDown = rows.Count; + int coordsAcross = rows[0].Count; + int lastColumn = coordsAcross - 1; + + float widthUnit = 1.0f / (coordsAcross - 1); + float heightUnit = 1.0f / (coordsDown - 1); + + for (imageY = 0; imageY < coordsDown; imageY++) + { + int rowOffset = imageY * coordsAcross; + + for (imageX = 0; imageX < coordsAcross; imageX++) + { /* * p1-----p2 * | \ f2 | * | \ | * | f1 \| * p3-----p4 - */ - - p4 = rowOffset + x; - p3 = p4 - 1; - - p2 = p4 - numXElements; - p1 = p3 - numXElements; - - Coord c = new Coord(xBegin + x * xStep, yBegin + y * yStep, zMap[y, x]); - this.coords.Add(c); - if (viewerMode) - { - this.normals.Add(new Coord()); - this.uvs.Add(new UVCoord(uStep * x, 1.0f - vStep * y)); - } - - if (y > 0 && x > 0) - { - Face f1, f2; - - if (viewerMode) - { - f1 = new Face(p1, p4, p3, p1, p4, p3); - f1.uv1 = p1; - f1.uv2 = p4; - f1.uv3 = p3; - - f2 = new Face(p1, p2, p4, p1, p2, p4); - f2.uv1 = p1; - f2.uv2 = p2; - f2.uv3 = p4; - } - else - { - f1 = new Face(p1, p4, p3); - f2 = new Face(p1, p2, p4); - } - - this.faces.Add(f1); - this.faces.Add(f2); - } - } - } - - if (viewerMode) - calcVertexNormals(SculptType.plane, numXElements, numYElements); - } - -#if SYSTEM_DRAWING - public SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode) - { - _SculptMesh(sculptBitmap, sculptType, lod, viewerMode, false, false); - } - - public SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode, bool mirror, bool invert) - { - _SculptMesh(sculptBitmap, sculptType, lod, viewerMode, mirror, invert); - } -#endif - - public SculptMesh(List> rows, SculptType sculptType, bool viewerMode, bool mirror, bool invert) - { - _SculptMesh(rows, sculptType, viewerMode, mirror, invert); - } - -#if SYSTEM_DRAWING - /// - /// converts a bitmap to a list of lists of coords, while scaling the image. - /// the scaling is done in floating point so as to allow for reduced vertex position - /// quantization as the position will be averaged between pixel values. this routine will - /// likely fail if the bitmap width and height are not powers of 2. - /// - /// - /// - /// - /// - private List> bitmap2Coords(Bitmap bitmap, int scale, bool mirror) - { - int numRows = bitmap.Height / scale; - int numCols = bitmap.Width / scale; - List> rows = new List>(numRows); - - float pixScale = 1.0f / (scale * scale); - pixScale /= 255; - - int imageX, imageY = 0; - - int rowNdx, colNdx; - - for (rowNdx = 0; rowNdx < numRows; rowNdx++) - { - List row = new List(numCols); - for (colNdx = 0; colNdx < numCols; colNdx++) - { - imageX = colNdx * scale; - int imageYStart = rowNdx * scale; - int imageYEnd = imageYStart + scale; - int imageXEnd = imageX + scale; - float rSum = 0.0f; - float gSum = 0.0f; - float bSum = 0.0f; - for (; imageX < imageXEnd; imageX++) - { - for (imageY = imageYStart; imageY < imageYEnd; imageY++) - { - Color c = bitmap.GetPixel(imageX, imageY); - if (c.A != 255) - { - bitmap.SetPixel(imageX, imageY, Color.FromArgb(255, c.R, c.G, c.B)); - c = bitmap.GetPixel(imageX, imageY); - } - rSum += c.R; - gSum += c.G; - bSum += c.B; - } - } - if (mirror) - row.Add(new Coord(-(rSum * pixScale - 0.5f), gSum * pixScale - 0.5f, bSum * pixScale - 0.5f)); - else - row.Add(new Coord(rSum * pixScale - 0.5f, gSum * pixScale - 0.5f, bSum * pixScale - 0.5f)); - - } - rows.Add(row); - } - return rows; - } - - - void _SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode, bool mirror, bool invert) - { - coords = new List(); - faces = new List(); - normals = new List(); - uvs = new List(); - - sculptType = (SculptType)(((int)sculptType) & 0x07); - - if (mirror) - if (sculptType == SculptType.plane) - invert = !invert; - - float sculptBitmapLod = (float)Math.Sqrt(sculptBitmap.Width * sculptBitmap.Height); - - float sourceScaleFactor = (float)(lod) / sculptBitmapLod; - - float fScale = 1.0f / sourceScaleFactor; - - int iScale = (int)fScale; - if (iScale < 1) iScale = 1; - if (iScale > 2 && iScale % 2 == 0) - _SculptMesh(bitmap2Coords(ScaleImage(sculptBitmap, 64.0f / sculptBitmapLod, true), 64 / lod, mirror), sculptType, viewerMode, mirror, invert); - else - _SculptMesh(bitmap2Coords(sculptBitmap, iScale, mirror), sculptType, viewerMode, mirror, invert); - } -#endif - - - void _SculptMesh(List> rows, SculptType sculptType, bool viewerMode, bool mirror, bool invert) - { - coords = new List(); - faces = new List(); - normals = new List(); - uvs = new List(); - - sculptType = (SculptType)(((int)sculptType) & 0x07); - - if (mirror) - if (sculptType == SculptType.plane) - invert = !invert; - - viewerFaces = new List(); - - int width = rows[0].Count; - - int p1, p2, p3, p4; - - int imageX, imageY; - - if (sculptType != SculptType.plane) - { - for (int rowNdx = 0; rowNdx < rows.Count; rowNdx++) - rows[rowNdx].Add(rows[rowNdx][0]); - } - - Coord topPole = rows[0][width / 2]; - Coord bottomPole = rows[rows.Count - 1][width / 2]; - - if (sculptType == SculptType.sphere) - { - int count = rows[0].Count; - List topPoleRow = new List(count); - List bottomPoleRow = new List(count); - - for (int i = 0; i < count; i++) - { - topPoleRow.Add(topPole); - bottomPoleRow.Add(bottomPole); - } - rows.Insert(0, topPoleRow); - rows.Add(bottomPoleRow); - } - else if (sculptType == SculptType.torus) - rows.Add(rows[0]); - - int coordsDown = rows.Count; - int coordsAcross = rows[0].Count; - - float widthUnit = 1.0f / (coordsAcross - 1); - float heightUnit = 1.0f / (coordsDown - 1); - - for (imageY = 0; imageY < coordsDown; imageY++) - { - int rowOffset = imageY * coordsAcross; - - for (imageX = 0; imageX < coordsAcross; imageX++) - { - /* - * p1-----p2 - * | \ f2 | - * | \ | - * | f1 \| - * p3-----p4 - */ - - p4 = rowOffset + imageX; - p3 = p4 - 1; - - p2 = p4 - coordsAcross; - p1 = p3 - coordsAcross; - - this.coords.Add(rows[imageY][imageX]); - if (viewerMode) - { - this.normals.Add(new Coord()); - this.uvs.Add(new UVCoord(widthUnit * imageX, heightUnit * imageY)); - } - - if (imageY > 0 && imageX > 0) - { - Face f1, f2; - - if (viewerMode) - { - if (invert) - { - f1 = new Face(p1, p4, p3, p1, p4, p3); - f1.uv1 = p1; - f1.uv2 = p4; - f1.uv3 = p3; - - f2 = new Face(p1, p2, p4, p1, p2, p4); - f2.uv1 = p1; - f2.uv2 = p2; - f2.uv3 = p4; - } - else - { - f1 = new Face(p1, p3, p4, p1, p3, p4); - f1.uv1 = p1; - f1.uv2 = p3; - f1.uv3 = p4; - - f2 = new Face(p1, p4, p2, p1, p4, p2); - f2.uv1 = p1; - f2.uv2 = p4; - f2.uv3 = p2; - } - } - else - { - if (invert) - { - f1 = new Face(p1, p4, p3); - f2 = new Face(p1, p2, p4); - } - else - { - f1 = new Face(p1, p3, p4); - f2 = new Face(p1, p4, p2); - } - } - - this.faces.Add(f1); - this.faces.Add(f2); - } - } - } - - if (viewerMode) - calcVertexNormals(sculptType, coordsAcross, coordsDown); - } - - /// - /// Duplicates a SculptMesh object. All object properties are copied by value, including lists. - /// - /// - public SculptMesh Copy() - { - return new SculptMesh(this); - } - - public SculptMesh(SculptMesh sm) - { - coords = new List(sm.coords); - faces = new List(sm.faces); - viewerFaces = new List(sm.viewerFaces); - normals = new List(sm.normals); - uvs = new List(sm.uvs); - } - - private void calcVertexNormals(SculptType sculptType, int xSize, int ySize) - { // compute vertex normals by summing all the surface normals of all the triangles sharing - // each vertex and then normalizing - int numFaces = this.faces.Count; - for (int i = 0; i < numFaces; i++) - { - Face face = this.faces[i]; - Coord surfaceNormal = face.SurfaceNormal(this.coords); - this.normals[face.n1] += surfaceNormal; - this.normals[face.n2] += surfaceNormal; - this.normals[face.n3] += surfaceNormal; - } - - int numNormals = this.normals.Count; - for (int i = 0; i < numNormals; i++) - this.normals[i] = this.normals[i].Normalize(); - - if (sculptType != SculptType.plane) - { // blend the vertex normals at the cylinder seam - for (int y = 0; y < ySize; y++) - { - int rowOffset = y * xSize; - - this.normals[rowOffset] = this.normals[rowOffset + xSize - 1] = (this.normals[rowOffset] + this.normals[rowOffset + xSize - 1]).Normalize(); - } - } - - foreach (Face face in this.faces) - { - ViewerFace vf = new ViewerFace(0); - vf.v1 = this.coords[face.v1]; - vf.v2 = this.coords[face.v2]; - vf.v3 = this.coords[face.v3]; - - vf.coordIndex1 = face.v1; - vf.coordIndex2 = face.v2; - vf.coordIndex3 = face.v3; - - vf.n1 = this.normals[face.n1]; - vf.n2 = this.normals[face.n2]; - vf.n3 = this.normals[face.n3]; - - vf.uv1 = this.uvs[face.uv1]; - vf.uv2 = this.uvs[face.uv2]; - vf.uv3 = this.uvs[face.uv3]; - - this.viewerFaces.Add(vf); - } - } - - /// - /// Adds a value to each XYZ vertex coordinate in the mesh - /// - /// - /// - /// - public void AddPos(float x, float y, float z) - { - int i; - int numVerts = this.coords.Count; - Coord vert; - - for (i = 0; i < numVerts; i++) - { - vert = this.coords[i]; - vert.X += x; - vert.Y += y; - vert.Z += z; - this.coords[i] = vert; - } - - if (this.viewerFaces != null) - { - int numViewerFaces = this.viewerFaces.Count; - - for (i = 0; i < numViewerFaces; i++) - { - ViewerFace v = this.viewerFaces[i]; - v.AddPos(x, y, z); - this.viewerFaces[i] = v; - } - } - } - - /// - /// Rotates the mesh - /// - /// - public void AddRot(Quat q) - { - int i; - int numVerts = this.coords.Count; - - for (i = 0; i < numVerts; i++) - this.coords[i] *= q; - - int numNormals = this.normals.Count; - for (i = 0; i < numNormals; i++) - this.normals[i] *= q; - - if (this.viewerFaces != null) - { - int numViewerFaces = this.viewerFaces.Count; - - for (i = 0; i < numViewerFaces; i++) - { - ViewerFace v = this.viewerFaces[i]; - v.v1 *= q; - v.v2 *= q; - v.v3 *= q; - - v.n1 *= q; - v.n2 *= q; - v.n3 *= q; - - this.viewerFaces[i] = v; - } - } - } - - public void Scale(float x, float y, float z) - { - int i; - int numVerts = this.coords.Count; - - Coord m = new Coord(x, y, z); - for (i = 0; i < numVerts; i++) - this.coords[i] *= m; - - if (this.viewerFaces != null) - { - int numViewerFaces = this.viewerFaces.Count; - for (i = 0; i < numViewerFaces; i++) - { - ViewerFace v = this.viewerFaces[i]; - v.v1 *= m; - v.v2 *= m; - v.v3 *= m; - this.viewerFaces[i] = v; - } - } - } - - public void DumpRaw(String path, String name, String title) - { - if (path == null) - return; - String fileName = name + "_" + title + ".raw"; - String completePath = System.IO.Path.Combine(path, fileName); - StreamWriter sw = new StreamWriter(completePath); - - for (int i = 0; i < this.faces.Count; i++) - { - string s = this.coords[this.faces[i].v1].ToString(); - s += " " + this.coords[this.faces[i].v2].ToString(); - s += " " + this.coords[this.faces[i].v3].ToString(); - - sw.WriteLine(s); - } - - sw.Close(); - } - } -} + */ + + p4 = rowOffset + imageX; + p3 = p4 - 1; + + p2 = p4 - coordsAcross; + p1 = p3 - coordsAcross; + + this.coords.Add(rows[imageY][imageX]); + if (viewerMode) + { + this.normals.Add(new Coord()); + this.uvs.Add(new UVCoord(widthUnit * imageX, heightUnit * imageY)); + } + + if (imageY > 0 && imageX > 0) + { + Face f1, f2; + + if (viewerMode) + { + if (invert) + { + f1 = new Face(p1, p4, p3, p1, p4, p3); + f1.uv1 = p1; + f1.uv2 = p4; + f1.uv3 = p3; + + f2 = new Face(p1, p2, p4, p1, p2, p4); + f2.uv1 = p1; + f2.uv2 = p2; + f2.uv3 = p4; + } + else + { + f1 = new Face(p1, p3, p4, p1, p3, p4); + f1.uv1 = p1; + f1.uv2 = p3; + f1.uv3 = p4; + + f2 = new Face(p1, p4, p2, p1, p4, p2); + f2.uv1 = p1; + f2.uv2 = p4; + f2.uv3 = p2; + } + } + else + { + if (invert) + { + f1 = new Face(p1, p4, p3); + f2 = new Face(p1, p2, p4); + } + else + { + f1 = new Face(p1, p3, p4); + f2 = new Face(p1, p4, p2); + } + } + + this.faces.Add(f1); + this.faces.Add(f2); + } + } + } + + if (viewerMode) + calcVertexNormals(sculptType, coordsAcross, coordsDown); + } + + /// + /// Duplicates a SculptMesh object. All object properties are copied by value, including lists. + /// + /// + public SculptMesh Copy() + { + return new SculptMesh(this); + } + + public SculptMesh(SculptMesh sm) + { + coords = new List(sm.coords); + faces = new List(sm.faces); + viewerFaces = new List(sm.viewerFaces); + normals = new List(sm.normals); + uvs = new List(sm.uvs); + } + + private void calcVertexNormals(SculptType sculptType, int xSize, int ySize) + { // compute vertex normals by summing all the surface normals of all the triangles sharing + // each vertex and then normalizing + int numFaces = this.faces.Count; + for (int i = 0; i < numFaces; i++) + { + Face face = this.faces[i]; + Coord surfaceNormal = face.SurfaceNormal(this.coords); + this.normals[face.n1] += surfaceNormal; + this.normals[face.n2] += surfaceNormal; + this.normals[face.n3] += surfaceNormal; + } + + int numNormals = this.normals.Count; + for (int i = 0; i < numNormals; i++) + this.normals[i] = this.normals[i].Normalize(); + + if (sculptType != SculptType.plane) + { // blend the vertex normals at the cylinder seam + for (int y = 0; y < ySize; y++) + { + int rowOffset = y * xSize; + + this.normals[rowOffset] = this.normals[rowOffset + xSize - 1] = (this.normals[rowOffset] + this.normals[rowOffset + xSize - 1]).Normalize(); + } + } + + foreach (Face face in this.faces) + { + ViewerFace vf = new ViewerFace(0); + vf.v1 = this.coords[face.v1]; + vf.v2 = this.coords[face.v2]; + vf.v3 = this.coords[face.v3]; + + vf.coordIndex1 = face.v1; + vf.coordIndex2 = face.v2; + vf.coordIndex3 = face.v3; + + vf.n1 = this.normals[face.n1]; + vf.n2 = this.normals[face.n2]; + vf.n3 = this.normals[face.n3]; + + vf.uv1 = this.uvs[face.uv1]; + vf.uv2 = this.uvs[face.uv2]; + vf.uv3 = this.uvs[face.uv3]; + + this.viewerFaces.Add(vf); + } + } + + /// + /// Adds a value to each XYZ vertex coordinate in the mesh + /// + /// + /// + /// + public void AddPos(float x, float y, float z) + { + int i; + int numVerts = this.coords.Count; + Coord vert; + + for (i = 0; i < numVerts; i++) + { + vert = this.coords[i]; + vert.X += x; + vert.Y += y; + vert.Z += z; + this.coords[i] = vert; + } + + if (this.viewerFaces != null) + { + int numViewerFaces = this.viewerFaces.Count; + + for (i = 0; i < numViewerFaces; i++) + { + ViewerFace v = this.viewerFaces[i]; + v.AddPos(x, y, z); + this.viewerFaces[i] = v; + } + } + } + + /// + /// Rotates the mesh + /// + /// + public void AddRot(Quat q) + { + int i; + int numVerts = this.coords.Count; + + for (i = 0; i < numVerts; i++) + this.coords[i] *= q; + + int numNormals = this.normals.Count; + for (i = 0; i < numNormals; i++) + this.normals[i] *= q; + + if (this.viewerFaces != null) + { + int numViewerFaces = this.viewerFaces.Count; + + for (i = 0; i < numViewerFaces; i++) + { + ViewerFace v = this.viewerFaces[i]; + v.v1 *= q; + v.v2 *= q; + v.v3 *= q; + + v.n1 *= q; + v.n2 *= q; + v.n3 *= q; + + this.viewerFaces[i] = v; + } + } + } + + public void Scale(float x, float y, float z) + { + int i; + int numVerts = this.coords.Count; + + Coord m = new Coord(x, y, z); + for (i = 0; i < numVerts; i++) + this.coords[i] *= m; + + if (this.viewerFaces != null) + { + int numViewerFaces = this.viewerFaces.Count; + for (i = 0; i < numViewerFaces; i++) + { + ViewerFace v = this.viewerFaces[i]; + v.v1 *= m; + v.v2 *= m; + v.v3 *= m; + this.viewerFaces[i] = v; + } + } + } + + public void DumpRaw(String path, String name, String title) + { + if (path == null) + return; + String fileName = name + "_" + title + ".raw"; + String completePath = System.IO.Path.Combine(path, fileName); + StreamWriter sw = new StreamWriter(completePath); + + for (int i = 0; i < this.faces.Count; i++) + { + string s = this.coords[this.faces[i].v1].ToString(); + s += " " + this.coords[this.faces[i].v2].ToString(); + s += " " + this.coords[this.faces[i].v3].ToString(); + + sw.WriteLine(s); + } + + sw.Close(); + } + } +} -- cgit v1.1