1 / 37

Terep

Terep. Sz écsi László. Mechanizmus. NxHeightField-ek definiálása PhysicsModel-be NxHeightFieldShapeDesc-ek betöltése Mesh-ek gyártása az NxHeightField-ekből ShadedMesh a Meshhez PhysicsEntity. NxHeightFieldShapeDesc. Mesh. ShadedMesh. PhysicsEntity. Actor. Építés. NxHeightField.

aldis
Download Presentation

Terep

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Terep Szécsi László

  2. Mechanizmus • NxHeightField-ek definiálása • PhysicsModel-be NxHeightFieldShapeDesc-ek betöltése • Mesh-ek gyártása az NxHeightField-ekből • ShadedMesh a Meshhez • PhysicsEntity

  3. NxHeightFieldShapeDesc Mesh ShadedMesh PhysicsEntity Actor Építés NxHeightField PhysicsModel

  4. XML • <PhysicsHeightField name="terrain" numberOfRows="128" • numberOfColumns="128" • fileName="mindegy" /> • <PhysicsModel name="terrain" dynamism="static"> • <NxHeightFieldShape • heightField="terrain" • rowScale="16" columnScale="16" heightScale="10"/> • </PhysicsModel> • <HeightFieldMesh name="terrain" heightField="terrain" rowScale="16" columnScale="16" heightScale="10"/>

  5. XML • <ShadedMesh name="terrain" mesh="terrain" > • <Role name="basic"> • <Material technique="basic"> • <Texture name="kdMap" • file="chessboard.jpg" /> • </Material> • </Role> • </ShadedMesh>

  6. XML • <PhysicsEntity name="terrain" shadedMesh="terrain" physicsModel="terrain" • position.x="-1024" • position.y="-40" • position.z="-1024"/> • groundot meg vegyük ki terep sarka

  7. Directory.h • typedef std::map< • const std::wstring, • NxHeightField*> • PhysicsHeightFieldDirectory;

  8. EngineCore • PhysicsHeightFieldDirectory physicsHeightFieldDirectory; • void loadPhysicsHeightFields( • XMLNode& xMainNode); • void loadNxHeightFieldShapes( • XMLNode& physicsModelNode,PhysicsModel* physicsModel);

  9. LPD3DXMESH createMeshFromHeightField( • NxHeightField* heightField, double rowScale, • double columnScale, • double heightScale); • void createHeightFieldMeshes( • XMLNode& xMainNode);

  10. EngineCore.cpp • void EngineCore::loadLevel(){ • //materialt hozzuk ide előre • loadPhysicsMaterials(xMainNode); • loadPhysicsHeightFields(xMainNode); • createHeightFieldMeshes(xMainNode); • loadMeshes(xMainNode); • loadShadedMeshes(xMainNode);

  11. ReleaseManagedResources • delete sceneRoot; • { • PhysicsHeightFieldDirectory::iterator i = • physicsHeightFieldDirectory.begin(); • while(i != • physicsHeightFieldDirectory.end()){ • nxPhysicsSDK->releaseHeightField( • *i->second); • i++; • } • } • nxPhysicsSDK->releaseScene(*nxScene); • nxPhysicsSDK->release();

  12. loadPhysicsHeightFields eleje • void EngineCore::loadPhysicsHeightFields( • XMLNode& xMainNode){ • int iPhysicsHeightField = 0; • XMLNode physicsHeightFieldNode; • while( !(physicsHeightFieldNode = xMainNode.getChildNode( • L"PhysicsHeightField", • iPhysicsHeightField)).isEmpty() ){ • const wchar_t* fileName = • physicsHeightFieldNode|L"fileName";

  13. folyt.: leíró kitöltése • NxHeightFieldDesc desc; • desc.nbRows = • physicsHeightFieldNode.readLong( • L"numberOfRows", 128); • desc.nbColumns = • physicsHeightFieldNode.readLong( • L"numberOfColumns", 128); • desc.format = NX_HF_S16_TM; • desc.sampleStride = • sizeof(NxHeightFieldSample); • desc.verticalExtent = -1000; • desc.thickness = 0; • desc.convexEdgeThreshold = 0;

  14. folyt.: random magasságok • NxHeightFieldSample* samples = new • NxHeightFieldSample[desc.nbRows * desc.nbColumns]; • desc.samples = (void*)samples; • for(int i=0; i < desc.nbRows; i++){ • for(int j=0; j < desc.nbColumns; j++){ • NxHeightFieldSample& e = • samples[i + j*desc.nbRows]; • e.height = rand() % 0xffff; • e.materialIndex0 = 0; • e.materialIndex1 = 1; • e.tessFlag = 0; • e.unused = 0; • }}

  15. loadPhysicsHeightFields vége • NxHeightField* nxHeightField= • nxPhysicsSDK • ->createHeightField(desc); • delete samples; • const wchar_t* physicsHeightFieldName • = physicsHeightFieldNode|L"name"; • physicsHeightFieldDirectory • [physicsHeightFieldName] = • nxHeightField; • iPhysicsHeightField++; }}

  16. EngineCore.cpp • void EngineCore::loadPhysicsModels( • XMLNode& xMainNode) { • loadNxWheelShapes(physicsModelNode, physicsModel); • loadNxHeightFieldShapes( • physicsModelNode, • physicsModel);

  17. EngineCore.cpp • void EngineCore::loadNxHeightFieldShapes(XMLNode& physicsModelNode, PhysicsModel* physicsModel){ • int iShape = 0; • XMLNode shapeNode; • while( !(shapeNode = physicsModelNode.getChildNode( • L"NxHeightFieldShape", iShape)).isEmpty() ) • { • NxHeightFieldShapeDesc* nxHeightFieldShapeDesc = • new NxHeightFieldShapeDesc(); • loadShapeDesc(shapeNode, nxHeightFieldShapeDesc); • // ide jön a következő dia szövege • physicsModel->addShape(nxHeightFieldShapeDesc); • iShape++; • } • }

  18. EngineCore.cpp • const wchar_t* heightFieldName = shapeNode|L"heightField"; • if(heightFieldName){ • PhysicsHeightFieldDirectory::iterator iPhysicsHeightField = • physicsHeightFieldDirectory.find(heightFieldName); • if(iPhysicsHeightField != physicsHeightFieldDirectory.end()){ • nxHeightFieldShapeDesc->heightField = • iPhysicsHeightField->second; • nxHeightFieldShapeDesc->columnScale = • shapeNode.readDouble(L"columnScale", 16.0); • nxHeightFieldShapeDesc->rowScale = • shapeNode.readDouble(L"rowScale", 16.0); • nxHeightFieldShapeDesc->heightScale = • shapeNode.readDouble(L"heightScale", • 20.0)/ (double)0xffff; • nxHeightFieldShapeDesc->materialIndexHighBits = 0; • nxHeightFieldShapeDesc->holeMaterial = 2; • nxHeightFieldShapeDesc->meshFlags = 0; • } • }

  19. EngineCore.cpp • void EngineCore::createHeightFieldMeshes(XMLNode& xMainNode){ • int iMesh = 0;XMLNode meshNode; • while( !(meshNode = • xMainNode.getChildNode(L"HeightFieldMesh", • iMesh)).isEmpty()){ • const wchar_t* name = meshNode|L"name"; • if(name) { • // ide jön a következő dia szövege • } • iMesh++; • } • }

  20. createHeightFieldMeshes mag • const wchar_t* heightFieldName = • meshNode|L"heightField"; • if(heightFieldName){ • PhysicsHeightFieldDirectory::iterator iHeightField = • physicsHeightFieldDirectory.find(heightFieldName); • if(iHeightField != physicsHeightFieldDirectory.end()){ • LPD3DXMESH mesh = • createMeshFromHeightField(iHeightField->second, • meshNode.readDouble(L"rowScale", 16.0), • meshNode.readDouble(L"columnScale", 16.0), • meshNode.readDouble(L"heightScale", 20)); • ); • meshDirectory[name] = mesh; • } • }

  21. createMeshFromHeightField eleje • LPD3DXMESH EngineCore::createMeshFromHeightField( • NxHeightField* heightField, double rowScale, double columnScale, double heightScale){ • unsigned int nCols = • heightField->getNbColumns(); • unsigned int nRows = • heightField->getNbRows(); • unsigned int nTileColumns = nCols-1; • unsigned int nTileRows = nRows-1; • NxHeightFieldSample* samples = new NxHeightFieldSample[nCols * nRows]; • heightField->saveCells((void*)samples, sizeof(NxHeightFieldSample) * nCols * nRows);

  22. createMeshFromHeightField folyt. • LPD3DXMESH mesh; • D3DXCreateMeshFVF(nTileRows * nTileColumns * 2, nRows * nCols, 0, • D3DFVF_XYZ | D3DFVF_NORMAL | • D3DFVF_TEX1 | D3DFVF_TEXCOORDSIZE2(0), • device, &mesh); • LPDIRECT3DINDEXBUFFER9 terrainIndexBuffer; • LPDIRECT3DVERTEXBUFFER9terrainVertexBuffer; • mesh->GetVertexBuffer(&terrainVertexBuffer); • mesh->GetIndexBuffer(&terrainIndexBuffer);

  23. createMeshFromHeightField folyt. • struct TerrainVertex{D3DXVECTOR3 pos; D3DXVECTOR3 normal; D3DXVECTOR2 tex;} *vertexData; • terrainVertexBuffer->Lock(0, sizeof(TerrainVertex) * nRows * nCols, (void**)&vertexData, 0); • for(int i=0; i<nRows; i++){ • for(int j=0; j<nCols; j++) { • vertexData[i * nCols + j].pos.x = (float)i * rowScale; • vertexData[i * nCols + j].pos.y = • samples[i*(nTileColumns+1) + j].height • / (double)0xffff * heightScale; • vertexData[i * nCols + j].pos.z = (float)j * columnScale; • vertexData[i * nCols + j].tex.x = (float)j / nTileRows; • vertexData[i * nCols + j].tex.y = (float)i / nTileColumns; • vertexData[i * nCols + j].normal.x = 0; • vertexData[i * nCols + j].normal.y = 1; • vertexData[i * nCols + j].normal.z = 0; • } • } • terrainVertexBuffer->Unlock();

  24. createMeshFromHeightField folyt. • short* indexData; • terrainIndexBuffer->Lock(0, sizeof(short) * 3 * 2 * nTileRows * nTileColumns, • í(void**)&indexData, 0); • for(int i=0; i<nTileRows; i++) • for(int j=0; j<nTileColumns; j++){ • if(i%2 == 0){ • indexData[ (i * nTileColumns + j) * 6] = i * nCols + j; • indexData[ (i * nTileColumns + j) * 6 + 1] = i * nCols + j + 1; • indexData[ (i * nTileColumns + j) * 6 + 2] = (i + 1) * nCols + j; • indexData[ (i * nTileColumns + j) * 6 + 4] = i * nCols + j + 1; • indexData[ (i * nTileColumns + j) * 6 + 3] = (i + 1) * nCols + j; • indexData[ (i * nTileColumns + j) * 6 + 5] = (i + 1) * nCols + j + 1; • } else { • indexData[ (i * nTileColumns + j) * 6] = i * nCols + j; • indexData[ (i * nTileColumns + j) * 6 + 1] = (i + 1) * nCols + j + 1; • indexData[ (i * nTileColumns + j) * 6 + 2] = (i + 1) * nCols + j; • indexData[ (i * nTileColumns + j) * 6 + 4] = i * nCols + j; • indexData[ (i * nTileColumns + j) * 6 + 5] = i * nCols + j + 1; • indexData[ (i * nTileColumns + j) * 6 + 3] = (i + 1) * nCols + j + 1; • } • } • terrainIndexBuffer->Unlock();

  25. createMeshFromHeightField vége • terrainVertexBuffer->Release(); • terrainIndexBuffer->Release(); • return mesh; • }

  26. Próba • tereprally

  27. Terep textúrázása • egy textúra a lehetséges csempékkel • terrain_tiles.png • egy textúra a talajtípus-információval • terrain_type.png

  28. új effect: terrain.fx • includeoljuk be az engineCore.fx-be

  29. terrain.fx • texture2D typeMap; • sampler2D typeSampler = sampler_state • { • texture = <typeMap>; • MipFilter = Point; • MagFilter = Linear; • MinFilter = Linear; • AddressU = WRAP; • AddressV = WRAP; • }; • texture2D tileMap; • sampler2D tileSampler = sampler_state • { • texture = <tileMap>; • MipFilter = Linear; • MagFilter = Linear; • MinFilter = Linear; • AddressU = WRAP; • AddressV = WRAP; • };

  30. input-output • struct TerrainInput • { • float4 pos : POSITION; • float2 tex : TEXCOORD0; • }; • struct TerrainOutput • { • float4 pos : POSITION; • float2 tex : TEXCOORD0; • };

  31. vertex shader • TerrainOutput vsTerrain(TerrainInput input) • { • TerrainOutput output = (TerrainOutput)0; • output.pos = mul(input.pos, • modelViewProjMatrix); • output.tex = input.tex; • return output; • }

  32. uniform paraméterek • float4 terrainTileRatio = float4(1, 0.25, 0, 0); • float4 terrainTextureScale = 32; milyen magas egy csempe a tileMap textúrában hány csempével legyen lefedve a megasságmező

  33. pixel shader • float4 psTerrain(TerrainOutput input) : COLOR0{ • float tileIndex = • tex2Dlod(typeSampler, • float4(input.tex, 0, 0)) / • terrainTileRatio.y; • float2 tileTex = frac(input.tex * • terrainTextureScale.x); • tileTex = (tileTex - float2(0.5, 0.5)) * 496.0 / 512.0 + float2(0.5, 0.5); • tileTex *= terrainTileRatio.xy;

  34. pixel shader folyt. • float p1 = floor(tileIndex); • float p2 = p1 + 1; • float4 c1 = tex2D(tileSampler, • tileTex + float2(0, • p1 * terrainTileRatio.y)); • float4 c2 = tex2D(tileSampler, • tileTex + float2(0, • p2 * terrainTileRatio.y)); • return lerp(c1, c2, • tileIndex - p1); • }

  35. technique • technique terrain • { • pass ExamplePass • { • CullMode = None; • VertexShader = compile vs_3_0 vsTerrain(); • PixelShader = compile ps_3_0 psTerrain(); • } • }

  36. XML • <ShadedMesh name="terrain" mesh="terrain" > • <Role name="basic"> • <Material technique="terrain"> • <Texture name="typeMap" file="terrain_type.png" /> • <Texture name="tileMap" file="terrain_tiles.png" /> • </Material> • </Role> • </ShadedMesh>

  37. Gond: mipmappelés • <Texture name="tileMap" file="terrain_tiles.png" mips="4" />

More Related