mirror of https://github.com/OpenMW/openmw.git
Further cut down the number of classes
git-svn-id: https://openmw.svn.sourceforge.net/svnroot/openmw/trunk@115 ea6a568a-9f4f-0410-981a-c910a81bb256pull/7/head
nkorslund
16 years ago
parent
44e9a03c17
commit
401bd35e02
@ -1,24 +0,0 @@
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HeightMap::HeightMap(Ogre::SceneNode* r)
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: mTerrainSceneNode(r),
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mQuadRoot(0),
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mMorphingEnabled(true),
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mTextureFadingEnabled(true),
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mBaseLand(r)
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{
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}
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//----------------------------------------------
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HeightMap::~HeightMap(){
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delete mQuadRoot;
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}
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//----------------------------------------------
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void HeightMap::create(){
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mQuadRoot = new Quad(Quad::QL_ROOT, 0);
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}
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//----------------------------------------------
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void HeightMap::update(Ogre::Real t){
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assert(mQuadRoot);
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mQuadRoot->update(t);
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mBaseLand.update();
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}
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@ -1,495 +0,0 @@
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TerrainMesh::TerrainMesh(QuadData* qd, float segSize, float startX, float startY,
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const Ogre::Vector3 &pos,
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int width, int depth, bool skirts,
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Ogre::SceneNode *parent)
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: Ogre::Renderable(),
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Ogre::MovableObject(),
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mWidth(width),
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mUseSkirts(skirts),
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mBuilt(false),
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mDepth(depth),
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mVertexes(0),
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mIndices(0),
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mLODMorphFactor(0),
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mTextureFadeFactor(0),
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mMin(30000),
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mMax(-30000),
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mExtraMorphAmount(0),
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mHasFadePass(false),
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mQuadData(qd),
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mSegmentSize(segSize),
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mX(startX),
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mY(startY)
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{
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// From QuadSegment()
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assert(qd);
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assert(segSize>0&&segSize<=1);
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assert(mY>=0&&mY<=1);
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assert(mX>=0&&mY<=1);
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#ifdef QSDEBUG
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{
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//check sizes
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const float qw = mQuadData->getVertexWidth()-1;
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const float fsw = qw*segSize;
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const int isw = (int)fsw;
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assert(fsw==isw);
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}
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#endif
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//precalc offsets, as getVertex/getNormal get called a lot (1000s of times)
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computeOffsets();
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// From Quad
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node = parent->createChildSceneNode(pos);
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// From create()
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createVertexBuffer();
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calculateVetexValues();
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calculateIndexValues();
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setBounds();
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node->attachObject(this);
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createMaterial();
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if ( g_heightMap->isMorphingEnabled() && mDepth != g_heightMap->getMaxDepth() ) {
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Ogre::Technique* tech = getMaterial()->getTechnique(0);
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for ( size_t i = 0; i < tech->getNumPasses(); ++i ) {
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assert(g_heightMap->isMorphingEnabled());
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tech->getPass(i)->setVertexProgram(MORPH_VERTEX_PROGRAM);
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}
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}
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if ( g_heightMap->isMorphingEnabled() )
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calculateDeltaValues();
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mBuilt = true;
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}
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void TerrainMesh::destroy() {
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if ( !mBuilt ) return;
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//deleting null values is fine iirc
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delete mIndices;
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# if ENABLED_CRASHING == 1
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{
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delete mVertexes;
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}
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# else
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{
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if ( mDepth != g_heightMap->getMaxDepth() ){
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delete mVertexes;
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}
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}
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# endif
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mBuilt = false;
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}
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//----------------------------------------------
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void TerrainMesh::update(Ogre::Real time, Ogre::Real camDist, Ogre::Real usplitDist, Ogre::Real morphDist)
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{
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TRACE("TerrainMesh::update");
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//if ( USE_MORPH ){
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//as aprocesh mUnsplitDistance, lower detail
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if ( camDist > morphDist && mDepth > 1 ) {
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mLODMorphFactor = 1 - (usplitDist - camDist)/(usplitDist-morphDist);
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} else
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mLODMorphFactor = 0;
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mTextureFadeFactor = mLODMorphFactor;
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//on an split, it sets the extra morph amount to 1, we then ensure this ends up at 0... slowly
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if ( mExtraMorphAmount > 0 ) {
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mLODMorphFactor += mExtraMorphAmount;
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mExtraMorphAmount -= (time/g_heightMap->getMorphSpeed()); //decrease slowly
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}
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if ( mExtraFadeAmount > 0 ) {
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mTextureFadeFactor += mExtraFadeAmount;
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mExtraFadeAmount -= (time/g_heightMap->getTextureFadeSpeed());
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}
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//Ensure within valid bounds
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if ( mLODMorphFactor > 1 )
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mLODMorphFactor = 1;
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else if ( mLODMorphFactor < 0 )
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mLODMorphFactor = 0;
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if ( mTextureFadeFactor > 1 )
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mTextureFadeFactor = 1;
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else if ( mTextureFadeFactor < 0 )
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mTextureFadeFactor = 0;
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//}
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//remove pass. Keep outside in case terrain fading is removed while it is active
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if ( mHasFadePass && mTextureFadeFactor == 0 ) {
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removeFadePass();
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} else if ( g_heightMap->isTextureFadingEnabled() &&
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!mHasFadePass &&
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mTextureFadeFactor > 0 &&
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hasParentTexture() ) {
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addFadePass();
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}
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}
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//----------------------------------------------
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void TerrainMesh::addFadePass() {
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assert(mHasFadePass==false);
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if ( mDepth == g_heightMap->getMaxDepth() ) return;
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mHasFadePass = true;
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Ogre::MaterialPtr mat = getMaterial();
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Ogre::Pass* newPass = mat->getTechnique(0)->createPass();
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newPass->setSceneBlending(Ogre::SBF_SOURCE_ALPHA, Ogre::SBF_ONE_MINUS_SOURCE_ALPHA);
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//set fragment program
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assert(g_heightMap->isTextureFadingEnabled());
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newPass->setFragmentProgram(FADE_FRAGMENT_PROGRAM);
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if ( g_heightMap->isMorphingEnabled() && mDepth != g_heightMap->getMaxDepth() ) {
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assert(g_heightMap->isMorphingEnabled());
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newPass->setVertexProgram(MORPH_VERTEX_PROGRAM);
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}
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//set texture to be used
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newPass->createTextureUnitState(getParentTexture(), 1);
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}
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//----------------------------------------------
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void TerrainMesh::removeFadePass() {
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assert(mHasFadePass==true);
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mHasFadePass = false;
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Ogre::MaterialPtr mat = getMaterial();
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Ogre::Technique* tech = mat->getTechnique(0);
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tech->removePass(tech->getNumPasses()-1);
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}
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//----------------------------------------------
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void TerrainMesh::justSplit() {
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mExtraMorphAmount = 1;
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mLODMorphFactor = 1;
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mTextureFadeFactor = 1;
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mExtraFadeAmount = 1;
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if ( g_heightMap->isTextureFadingEnabled() && hasParentTexture() )
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addFadePass();
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}
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//----------------------------------------------
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void TerrainMesh::_updateCustomGpuParameter(
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const GpuProgramParameters::AutoConstantEntry& constantEntry,
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GpuProgramParameters* params) const {
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using namespace Ogre;
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if (constantEntry.data == MORPH_CUSTOM_PARAM_ID)
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params->_writeRawConstant(constantEntry.physicalIndex, mLODMorphFactor);
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else if ( constantEntry.data == FADE_CUSTOM_PARAM_ID )
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params->_writeRawConstant(constantEntry.physicalIndex, mTextureFadeFactor);
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else
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Renderable::_updateCustomGpuParameter(constantEntry, params);
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}
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//----------------------------------------------
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float TerrainMesh::getVertexHeight(int x, int y) {
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return getVertex(x,y);
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}
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//----------------------------------------------
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Ogre::Vector3 TerrainMesh::getVertexPosition(int x, int y) {
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return Ogre::Vector3(x*getVertexSeperation(), getVertexHeight(x,y) , y*getVertexSeperation());
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}
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//----------------------------------------------
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void TerrainMesh::calculateVetexValues() {
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using namespace Ogre;
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//get the texture offsets for the higher uv
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float xUVOffset = 0;
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float yUVOffset = 0;
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if ( g_heightMap->isTextureFadingEnabled() ) {
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assert(0);
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}
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/*
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switch (mInterface->getLocation()) {
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case Quad::QL_NW :
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yUVOffset = 32.0f/64.0f;
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break;
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case Quad::QL_NE:
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yUVOffset = 32.0f/64.0f;
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xUVOffset = 32.0f/64.0f;
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break;
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case Quad::QL_SE:
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xUVOffset = 32.0f/64.0f;
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break;
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default:
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break;
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}
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*/
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int start = 0;
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int end = mWidth;
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if ( mUseSkirts ) {
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--start;
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++end;
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}
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float* verts = static_cast<float*>(mMainBuffer->lock(HardwareBuffer::HBL_DISCARD));
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for ( int y = start; y < end; y++ ) {
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for ( int x = start; x < end; x++ ) {
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//the skirts
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if ( y < 0 || y > (mWidth-1) || x < 0 || x > (mWidth-1) ) {
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if ( x < 0 ) *verts++ = 0;
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else if ( x > (mWidth-1) ) *verts++ = (mWidth-1)*getVertexSeperation();
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else *verts++ = x*getVertexSeperation();
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*verts++ = -4096; //2048 below base sea floor height
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if ( y < 0 ) *verts++ = 0;
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else if ( y > (mWidth-1) ) *verts++ = (mWidth-1)*getVertexSeperation();
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else *verts++ = y*getVertexSeperation();
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for ( Ogre::uint i = 0; i < 3; i++ )
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*verts++ = 0;
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float u = (float)(x) / (mWidth-1);
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float v = (float)(y) / (mWidth-1);
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//clamped, so shouldn't matter if > 1
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*verts++ = u;
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*verts++ = v;
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if ( g_heightMap->isTextureFadingEnabled() ) {
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*verts++ = u;
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*verts++ = v;
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}
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} else {
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assert(y*mWidth+x>=0&&y*mWidth+x<mWidth*mWidth);
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//verts
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*verts++ = x*getVertexSeperation();
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*verts++ = getVertexHeight(x,y);
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*verts++ = y*getVertexSeperation();
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mMax = std::max(mMax, getVertexHeight(x,y));
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mMin = std::min(mMin, getVertexHeight(x,y));
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//normals
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for ( Ogre::uint i = 0; i < 3; i++ )
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*verts++ = getNormal(x,y,i);
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//*verts++ = mInterface->getNormal((y*mWidth+x)*3+i);
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const float u = (float)(x) / (mWidth-1);
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const float v = (float)(y) / (mWidth-1);
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assert(u>=0&&v>=0);
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assert(u<=1&&v<=1);
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*verts++ = u;
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*verts++ = v;
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if ( g_heightMap->isTextureFadingEnabled() ) {
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*verts++ = u/2.0f + xUVOffset;
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*verts++ = v/2.0f + yUVOffset;
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}
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}
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}
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}
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mMainBuffer->unlock();
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}
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//----------------------------------------------
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void TerrainMesh::setBounds() {
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mBounds.setExtents(0,mMin,0,
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(mWidth - 1) * getVertexSeperation(),
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mMax,
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(mWidth - 1) * getVertexSeperation());
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mCenter = Ogre::Vector3( ( (mWidth - 1) * getVertexSeperation() ) / 2,
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( mMin + mMax ) / 2,
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( (mWidth - 1) * getVertexSeperation() ) / 2);
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mBoundingRadius = (mBounds.getMaximum() - mBounds.getMinimum()).length() / 2;
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}
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//----------------------------------------------
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void TerrainMesh::createVertexBuffer() {
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using namespace Ogre;
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size_t vw = mWidth;
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if ( mUseSkirts ) vw += 2;
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mVertexes = new VertexData();
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mVertexes->vertexStart = 0;
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mVertexes->vertexCount = vw*vw;// VERTEX_WIDTH;
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VertexDeclaration* vertexDecl = mVertexes->vertexDeclaration;
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size_t currOffset = 0;
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vertexDecl->addElement(MAIN_BINDING, currOffset, VET_FLOAT3, VES_POSITION);
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currOffset += VertexElement::getTypeSize(VET_FLOAT3);
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vertexDecl->addElement(MAIN_BINDING, currOffset, VET_FLOAT3, VES_NORMAL);
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currOffset += VertexElement::getTypeSize(VET_FLOAT3);
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vertexDecl->addElement(MAIN_BINDING, currOffset, VET_FLOAT2, VES_TEXTURE_COORDINATES, 0);
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currOffset += VertexElement::getTypeSize(VET_FLOAT2);
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if ( g_heightMap->isTextureFadingEnabled() ) {
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vertexDecl->addElement(MAIN_BINDING, currOffset, VET_FLOAT2, Ogre::VES_TEXTURE_COORDINATES, 1);
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currOffset += VertexElement::getTypeSize(VET_FLOAT2);
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}
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mMainBuffer = HardwareBufferManager::getSingleton().createVertexBuffer(
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vertexDecl->getVertexSize(0), // size of one whole vertex
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mVertexes->vertexCount, // number of vertices
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HardwareBuffer::HBU_STATIC_WRITE_ONLY, // usage
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false); // no shadow buffer
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mVertexes->vertexBufferBinding->setBinding(MAIN_BINDING, mMainBuffer); //bind the data
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if ( g_heightMap->isMorphingEnabled() )
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vertexDecl->addElement(DELTA_BINDING, 0, VET_FLOAT1, VES_BLEND_WEIGHTS);
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}
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Ogre::HardwareVertexBufferSharedPtr TerrainMesh::createDeltaBuffer( ) {
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size_t vw = mWidth;
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if ( mUseSkirts ) vw += 2;
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const size_t totalVerts = (vw * vw);
|
|
||||||
return Ogre::HardwareBufferManager::getSingleton().createVertexBuffer(
|
|
||||||
Ogre::VertexElement::getTypeSize(Ogre::VET_FLOAT1),
|
|
||||||
totalVerts,
|
|
||||||
Ogre::HardwareBuffer::HBU_STATIC_WRITE_ONLY,
|
|
||||||
false); //no shadow buff
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
//----------------------------------------------
|
|
||||||
#define SET_DELTA_AT(x, y, v) \
|
|
||||||
if ( mUseSkirts ) pDeltas[( y + 1)*vw+ x + 1] = v; \
|
|
||||||
else pDeltas[( y)*vw+ x] = v;
|
|
||||||
void TerrainMesh::calculateDeltaValues() {
|
|
||||||
|
|
||||||
using namespace Ogre;
|
|
||||||
size_t vw = mWidth;
|
|
||||||
if ( mUseSkirts ) vw += 2;
|
|
||||||
|
|
||||||
//must be using morphing to use this function
|
|
||||||
assert(g_heightMap->isMorphingEnabled());
|
|
||||||
|
|
||||||
const size_t step = 2;
|
|
||||||
|
|
||||||
// Create a set of delta values
|
|
||||||
mDeltaBuffer = createDeltaBuffer();
|
|
||||||
float* pDeltas = static_cast<float*>(mDeltaBuffer->lock(HardwareBuffer::HBL_DISCARD));
|
|
||||||
memset(pDeltas, 0, (vw)*(vw) * sizeof(float));
|
|
||||||
|
|
||||||
return;
|
|
||||||
|
|
||||||
bool flag=false;
|
|
||||||
for ( size_t y = 0; y < mWidth-step; y += step ) {
|
|
||||||
for ( size_t x = 0; x < mWidth-step; x += step ) {
|
|
||||||
//create the diffrence between the full vertex if the vertex wasn't their
|
|
||||||
|
|
||||||
float bottom_left = getVertexHeight(x,y);
|
|
||||||
float bottom_right = getVertexHeight(x+step,y);
|
|
||||||
|
|
||||||
float top_left = getVertexHeight(x,y+step);
|
|
||||||
float top_right = getVertexHeight(x+step,y+step);
|
|
||||||
|
|
||||||
//const int vw = mWidth+2;
|
|
||||||
SET_DELTA_AT(x, y+1, (bottom_left+top_left)/2 - getVertexHeight(x, y+1)) //left
|
|
||||||
SET_DELTA_AT(x+2, y+1, (bottom_right+top_right)/2 - getVertexHeight(x+2, y+1)) //right
|
|
||||||
|
|
||||||
SET_DELTA_AT(x+1, y+2, (top_right+top_left)/2 - getVertexHeight(x+1, y+2)) //top
|
|
||||||
SET_DELTA_AT(x+1, y, (bottom_right+bottom_left)/2 - getVertexHeight(x+1, y)) //bottom
|
|
||||||
|
|
||||||
//this might not be correct
|
|
||||||
if ( !flag )
|
|
||||||
SET_DELTA_AT(x+1, y+1, (bottom_left+top_right)/2 - getVertexHeight(x+1, y+1)) //center
|
|
||||||
else
|
|
||||||
SET_DELTA_AT(x+1, y+1, (bottom_right+top_left)/2 - getVertexHeight(x+1, y+1)) //center
|
|
||||||
|
|
||||||
flag = !flag;
|
|
||||||
}
|
|
||||||
flag = !flag; //flip tries for next row
|
|
||||||
}
|
|
||||||
|
|
||||||
mDeltaBuffer->unlock();
|
|
||||||
mVertexes->vertexBufferBinding->setBinding(DELTA_BINDING,mDeltaBuffer);
|
|
||||||
|
|
||||||
}
|
|
||||||
#undef SET_DELTA_AT
|
|
||||||
|
|
||||||
//----------------------------------------------
|
|
||||||
void TerrainMesh::calculateIndexValues() {
|
|
||||||
using namespace Ogre;
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
size_t vw = mWidth-1;
|
|
||||||
if ( mUseSkirts ) vw += 2;
|
|
||||||
|
|
||||||
const size_t indexCount = (vw)*(vw)*6;
|
|
||||||
|
|
||||||
//need to manage allocation if not null
|
|
||||||
assert(mIndices==0);
|
|
||||||
|
|
||||||
mIndices = new IndexData();
|
|
||||||
mIndices->indexCount = indexCount;
|
|
||||||
mIndices->indexBuffer = HardwareBufferManager::getSingleton().createIndexBuffer(
|
|
||||||
HardwareIndexBuffer::IT_16BIT,
|
|
||||||
indexCount, HardwareBuffer::HBU_STATIC_WRITE_ONLY, false);
|
|
||||||
|
|
||||||
unsigned short* indices = static_cast<unsigned short*>(mIndices->indexBuffer->lock(0,
|
|
||||||
mIndices->indexBuffer->getSizeInBytes(),
|
|
||||||
HardwareBuffer::HBL_DISCARD));
|
|
||||||
|
|
||||||
bool flag = false;
|
|
||||||
Ogre::uint indNum = 0;
|
|
||||||
for ( Ogre::uint y = 0; y < (vw); y+=1 ) {
|
|
||||||
for ( Ogre::uint x = 0; x < (vw); x+=1 ) {
|
|
||||||
|
|
||||||
const int line1 = y * (vw+1) + x;
|
|
||||||
const int line2 = (y + 1) * (vw+1) + x;
|
|
||||||
|
|
||||||
if ( flag ) {
|
|
||||||
*indices++ = line1;
|
|
||||||
*indices++ = line2;
|
|
||||||
*indices++ = line1 + 1;
|
|
||||||
|
|
||||||
*indices++ = line1 + 1;
|
|
||||||
*indices++ = line2;
|
|
||||||
*indices++ = line2 + 1;
|
|
||||||
} else {
|
|
||||||
*indices++ = line1;
|
|
||||||
*indices++ = line2;
|
|
||||||
*indices++ = line2 + 1;
|
|
||||||
|
|
||||||
*indices++ = line1;
|
|
||||||
*indices++ = line2 + 1;
|
|
||||||
*indices++ = line1 + 1;
|
|
||||||
}
|
|
||||||
flag = !flag; //flip tris for next time
|
|
||||||
|
|
||||||
indNum+=6;
|
|
||||||
}
|
|
||||||
flag = !flag; //flip tries for next row
|
|
||||||
}
|
|
||||||
assert(indNum==indexCount);
|
|
||||||
mIndices->indexBuffer->unlock();
|
|
||||||
//return mIndices;
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue