T3DSModel.cpp es una librer\u00eda cuyo objetivo es brindar una interfaz lo m\u00e1s sencilla posible para cargar
y dibujar archivos 3DS, de modo que con solo llamar las funciones Open3DS() y Draw() podremos estar
dibujando modelos complejos con alto nivel poligonal sin tener que preocuparnos en cargar texturas,
calcular normales, etc. Claro que a mayor abstracci\u00f3n menor control, no obstante es muy c\u00f3modo
exportar tus modelos previamente hechos en 3D Studio y luego cargarlos en tu aplicaci\u00f3n como escenarios,
personajes, etc.<\/p>\n\n\n\n\n\n\n\n
T3DSModel.cpp trabaja sobre la librer\u00eda 3ds.cpp de DigiBen para crear una interface de f\u00e1cil uso a la hora
de cargar y dibujar un 3DS.Tambi\u00e9n me he tomando la libertad de hacerle algunos cambios a la librer\u00eda de
DigiBen para agregar nuevas funcionalidades que quiz\u00e1s no sean b\u00e1sicas pero si importantes. Mis cambios
agregan: soporte para lightmaps, soporte para reflectionmaps, transparencia de materiales y CullMode establecido por el material.<\/p>\n\n\n
\nT3DSModel.cpp\n\n\/*\n*\n* Nombre: T3DSModel\n* Autor: h0aX\n* Fecha: 10\/febrero\/2006\n* Descripcion: Trabaja sobre la librer\u00eda 3ds.cpp de\n* DigiBen para crear una interface de f\u00e1cil\n* uso a la hora de cargar y dibujar un 3DS\n*\n*\/\n\/\/---------------------------------------------------------------------------\n#include <float.h>\n#include <gl.h>\n#include <glu.h>\n#include <.\\Libs3DS\\multitexture.h>\n#include "T3DSModel.h"\n#pragma hdrstop\n#pragma package(smart_init)\n\/\/---------------------------------------------------------------------------\nT3DSModel::T3DSModel()\n{\n _control87(MCW_EM, MCW_EM);\n CanDraw = TRUE;\n}\n\/\/---------------------------------------------------------------------------\nvoid T3DSModel::Open3DS(char *fichero)\n{\n BOOL bMultitexture;\n bMultitexture = FALSE;\n\/\/importa estructura de datos del 3ds\n g_Load3ds.Import3DS(&g_3DModel, fichero);\n\/\/inicia la carga de texturas\n for(int i = 0; i < g_3DModel.numOfMaterials; i++)\n {\n if(strlen(g_3DModel.pMaterials[i].strFile) > 0)\n {\n \/\/carga textura del material\n CreateTexture(g_Texture, g_3DModel.pMaterials[i].strFile, i);\n \/\/si usa lightmap activa multitexturas y carga el lightmap\n if (g_3DModel.pMaterials[i].bUseLightmap)\n {\n if (!bMultitexture)\n {\n InitMultiTexture();\n bMultitexture = true;\n }\n CreateTexture(g_Lightmaps, g_3DModel.pMaterials[i].strLightmapFile, i);\n }\n \/\/si usa reflexi\u00f3n activa multitexturas y carga la textura de reflexi\u00f3n\n if (g_3DModel.pMaterials[i].bUseReflection)\n {\n if (!bMultitexture)\n {\n InitMultiTexture();\n bMultitexture = true;\n }\n CreateTexture(g_Reflections, g_3DModel.pMaterials[i].strReflectionFile, i);\n }\n }\n g_3DModel.pMaterials[i].texureId = i;\n }\n glEnable(GL_LIGHT0);\n glEnable(GL_LIGHTING);\n glEnable(GL_COLOR_MATERIAL);\n}\n\/\/---------------------------------------------------------------------------\nint T3DSModel::GetPolygonsCount()\n{\n int result = 0;\n for(int i = 0; i < g_3DModel.numOfObjects; i++)\n {\n if(g_3DModel.pObject.size() <= 0)\n break;\n t3DObject *pObject = &g_3DModel.pObject[i];\n for(int j = 0; j < pObject->numOfFaces; j++)\n {\n result++;\n }\n }\n result = result \/ 2;\n return result;\n}\n\/\/---------------------------------------------------------------------------\nvoid T3DSModel::Draw()\n{\n float fTransp;\n if (CanDraw)\n {\n for(int i = 0; i < g_3DModel.numOfObjects; i++)\n {\n if(g_3DModel.pObject.size() <= 0) break;\n t3DObject *pObject = &g_3DModel.pObject[i];\n\n \/* \n ** Aqui comienza la carga del material\n *\/\n\n \/\/chequea si el material actual usa dos caras\n if (g_3DModel.pMaterials[pObject->materialID].bTwoSides)\n {\n glDisable(GL_CULL_FACE);\n }\n else\n {\n glEnable(GL_CULL_FACE);\n }\n \/\/chequea si el material usa texturas\n if(pObject->bHasTexture)\n {\n glEnable(GL_TEXTURE_2D);\n \/\/carga la opacidad del material\n fTransp = g_3DModel.pMaterials[pObject->materialID].fTransp;\n \/\/si la opacidad es menor de 1.0 activa la transparencia\n if (fTransp < 1.0)\n {\n glEnable(GL_BLEND);\n glColor4f(1.0,1.0,1.0,fTransp);\n }\n \/\/Si el material actual usa lightmaps activa la textura actual\n \/\/junto con el lightmap usando multitexturas, sino solo activa\n \/\/la textura normal\n if ( g_3DModel.pMaterials[pObject->materialID].bUseLightmap )\n {\n Bind2Textures(g_Texture[pObject->materialID],g_Lightmaps[pObject->materialID]);\n }\n else\n {\n glBindTexture(GL_TEXTURE_2D, g_Texture[pObject->materialID]);\n }\n \/\/Si el material actual usa reflexi\u00f3n activa textura normal y la textura\n \/\/de reflexi\u00f3n usando multitexturas y luego le da reflexi\u00f3n esf\u00e9rica a la\n \/\/\u00faltima\n if ( g_3DModel.pMaterials[pObject->materialID].bUseReflection )\n {\n Bind2Textures(g_Texture[pObject->materialID],g_Reflections[pObject->materialID]);\n glTexGenf(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);\n glTexGenf(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);\n glEnable(GL_TEXTURE_GEN_S);\n glEnable(GL_TEXTURE_GEN_T);\n }\n \/\/Caso que usen ambos, reflexi\u00f3n y lightmaps en un mismo material se activan las\n \/\/tres juntas con multitextura, Normal + Lightmap + Reflexi\u00f3n\n if ( (g_3DModel.pMaterials[pObject->materialID].bUseLightmap) &&\n (g_3DModel.pMaterials[pObject->materialID].bUseReflection) )\n {\n glActiveTextureARB(GL_TEXTURE0_ARB);\n glEnable(GL_TEXTURE_2D);\n glBindTexture(GL_TEXTURE_2D, g_Texture[pObject->materialID]);\n glActiveTextureARB(GL_TEXTURE1_ARB);\n glEnable(GL_TEXTURE_2D);\n glBindTexture(GL_TEXTURE_2D, g_Lightmaps[pObject->materialID]);\n glDisable(GL_TEXTURE_GEN_S);\n glDisable(GL_TEXTURE_GEN_T);\n glActiveTextureARB(GL_TEXTURE2_ARB);\n glEnable(GL_TEXTURE_2D);\n glBindTexture(GL_TEXTURE_2D, g_Reflections[pObject->materialID]);\n glTexGenf(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);\n glTexGenf(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);\n glEnable(GL_TEXTURE_GEN_S);\n glEnable(GL_TEXTURE_GEN_T);\n }\n }\n else\n {\n \/\/si el material no usa una textura se\n \/\/deshabilitan las texturas y se usa un\n \/\/color.\n glDisable(GL_TEXTURE_2D);\n glColor3b(g_3DModel.pMaterials[pObject->materialID].color[0], g_3DModel.pMaterials[pObject->materialID].color[1], g_3DModel.pMaterials[pObject->materialID].color[2]);\n }\n\n \/*\n ** Aqui comienza el dibujado\n *\/\n\n glBegin(GL_TRIANGLES);\n \/\/se recorren todas las caras\n for(int j = 0; j < pObject->numOfFaces; j++)\n {\n \/\/se recorre cada v\u00e9rtice de cada cara\n for(int whichVertex = 0; whichVertex < 3; whichVertex++)\n {\n int index = pObject->pFaces[j].vertIndex[whichVertex];\n \/\/normales\n glNormal3f(pObject->pNormals[ index ].x, pObject->pNormals[ index ].y, pObject->pNormals[ index ].z);\n \/\/si usa texturas se definen las coordenadas de mapeado\n if(pObject->bHasTexture)\n {\n if(pObject->pTexVerts)\n {\n \/\/coordenadas de mapeado para los lightmaps\n if ( g_3DModel.pMaterials[pObject->materialID].bUseLightmap )\n {\n glMultiTexCoord2fARB(GL_TEXTURE0_ARB,pObject->pTexVerts[ index ].x, pObject->pTexVerts[ index ].y);\n glMultiTexCoord2fARB(GL_TEXTURE1_ARB,pObject->pTexVerts[ index ].x, pObject->pTexVerts[ index ].y);\n }\n else\n {\n \/\/coordenadas de mapeado de textura normal\n glTexCoord2f(pObject->pTexVerts[index].x, pObject->pTexVerts[index ].y);\n }\n }\n }\n else\n {\n \/\/si no usa textura se le asigna un color al v\u00e9rtice\n if(g_3DModel.pMaterials.size() && pObject->materialID >= 0)\n {\n BYTE *pColor = g_3DModel.pMaterials[pObject->materialID].color;\n glColor3ub(pColor[0], pColor[1], pColor[2]);\n }\n }\n \/\/dibuja el v\u00e9rtice\n glVertex3f(pObject->pVerts[ index ].x, pObject->pVerts[ index ].y, pObject->pVerts[ index ].z);\n }\n }\n glEnd();\n\n \/\/si la transparencia esta activada se desactiva\n if (fTransp < 1.0)\n {\n glDisable(GL_BLEND);\n }\n\n \/\/si se activaron las multitexturas se desactivan aqui\n if ( (g_3DModel.pMaterials[pObject->materialID].bUseLightmap) ||\n (g_3DModel.pMaterials[pObject->materialID].bUseReflection))\n {\n glActiveTextureARB(GL_TEXTURE2_ARB);\n glDisable(GL_TEXTURE_GEN_S);\n glDisable(GL_TEXTURE_GEN_T);\n glDisable(GL_TEXTURE_2D);\n glDisable(GL_TEXTURE_GEN_S);\n glDisable(GL_TEXTURE_GEN_T);\n glDisable(GL_TEXTURE_2D);\n glActiveTextureARB(GL_TEXTURE1_ARB);\n glDisable(GL_TEXTURE_GEN_S);\n glDisable(GL_TEXTURE_GEN_T);\n glDisable(GL_TEXTURE_2D);\n glDisable(GL_TEXTURE_GEN_S);\n glDisable(GL_TEXTURE_GEN_T);\n glDisable(GL_TEXTURE_2D);\n glActiveTextureARB(GL_TEXTURE0_ARB);\n glEnable(GL_TEXTURE_2D);\n }\n }\n }\n }\n\/\/---------------------------------------------------------------------------\nT3DSModel::~T3DSModel()\n{\n for(int i = 0; i < g_3DModel.numOfObjects; i++)\n {\n delete[] g_3DModel.pObject[i].pFaces;\n delete[] g_3DModel.pObject[i].pNormals;\n delete[] g_3DModel.pObject[i].pVerts;\n delete[] g_3DModel.pObject[i].pTexVerts;\n }\n}\n\/\/---------------------------------------------------------------------------\nvoid T3DSModel::Reset()\n{\n \/\/esto falta\n}\n\/\/---------------------------------------------------------------------------\n<\/pre><\/div>\n\n\nLibs3DS<\/a>Descarga<\/a><\/div>\n\n\n\nEscrito por H0aX [hoax_ws@yahoo.es]<\/p>\n","protected":false},"excerpt":{"rendered":"
T3DSModel.cpp es una librer\u00eda cuyo objetivo es brindar una interfaz lo m\u00e1s sencilla posible para cargary dibujar archivos<\/p>\n","protected":false},"author":2,"featured_media":354,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59,36],"tags":[227,88,226,38],"class_list":["post-742","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-codigos","category-proyecto-blackhat","tag-3ds","tag-codigos","tag-opengl","tag-proyecto-blackhat"],"_links":{"self":[{"href":"https:\/\/hackcuba.net\/index.php?rest_route=\/wp\/v2\/posts\/742","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hackcuba.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hackcuba.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hackcuba.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hackcuba.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=742"}],"version-history":[{"count":2,"href":"https:\/\/hackcuba.net\/index.php?rest_route=\/wp\/v2\/posts\/742\/revisions"}],"predecessor-version":[{"id":749,"href":"https:\/\/hackcuba.net\/index.php?rest_route=\/wp\/v2\/posts\/742\/revisions\/749"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hackcuba.net\/index.php?rest_route=\/wp\/v2\/media\/354"}],"wp:attachment":[{"href":"https:\/\/hackcuba.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hackcuba.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hackcuba.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}