Geometry BubbleEmitter::CreateGeometry( unsigned int numOfPatch )
{
unsigned int numVertex = numOfPatch*4u;
std::vector<Vertex> vertexData;
vertexData.reserve( numVertex );
unsigned int numIndex = numOfPatch*6u;
Vector<unsigned int> indexData;
indexData.Reserve( numIndex );
for(unsigned int i = 0; i < numOfPatch; i++)
{
float curSize = RandomRange(mBubbleSizeRange.x, mBubbleSizeRange.y, mRandomSeed);
float index = static_cast<float>( i );
vertexData.push_back( Vertex( index, Vector2(0.f,0.f), Vector2(0.f,0.f) ) );
vertexData.push_back( Vertex( index, Vector2(0.f,curSize), Vector2(0.f,1.f) ) );
vertexData.push_back( Vertex( index, Vector2(curSize,curSize), Vector2(1.f,1.f) ) );
vertexData.push_back( Vertex( index, Vector2(curSize,0.f), Vector2(1.f,0.f) ) );
unsigned int idx = index * 4;
indexData.PushBack( idx );
indexData.PushBack( idx+1 );
indexData.PushBack( idx+2 );
indexData.PushBack( idx );
indexData.PushBack( idx+2 );
indexData.PushBack( idx+3 );
}
Property::Map vertexFormat;
vertexFormat["aIndex"] = Property::FLOAT;
vertexFormat["aPosition"] = Property::VECTOR2;
vertexFormat["aTexCoord"] = Property::VECTOR2;
PropertyBuffer vertices = PropertyBuffer::New( vertexFormat, numVertex );
vertices.SetData( &vertexData[0] );
Property::Map indexFormat;
indexFormat["indices"] = Property::INTEGER;
PropertyBuffer indices = PropertyBuffer::New( indexFormat, numIndex );
indices.SetData( &indexData[0] );
Geometry geometry = Geometry::New();
geometry.AddVertexBuffer( vertices );
geometry.SetIndexBuffer( indices );
return geometry;
}
bool Model::EndLoad()
{
// Upload vertex buffer data
for (unsigned i = 0; i < vertexBuffers_.Size(); ++i)
{
VertexBuffer* buffer = vertexBuffers_[i];
VertexBufferDesc& desc = loadVBData_[i];
if (desc.data_)
{
buffer->SetShadowed(true);
buffer->SetSize(desc.vertexCount_, desc.vertexElements_);
buffer->SetData(desc.data_.Get());
}
}
// Upload index buffer data
for (unsigned i = 0; i < indexBuffers_.Size(); ++i)
{
IndexBuffer* buffer = indexBuffers_[i];
IndexBufferDesc& desc = loadIBData_[i];
if (desc.data_)
{
buffer->SetShadowed(true);
buffer->SetSize(desc.indexCount_, desc.indexSize_ > sizeof(unsigned short));
buffer->SetData(desc.data_.Get());
}
}
// Set up geometries
for (unsigned i = 0; i < geometries_.Size(); ++i)
{
for (unsigned j = 0; j < geometries_[i].Size(); ++j)
{
Geometry* geometry = geometries_[i][j];
GeometryDesc& desc = loadGeometries_[i][j];
geometry->SetVertexBuffer(0, vertexBuffers_[desc.vbRef_]);
geometry->SetIndexBuffer(indexBuffers_[desc.ibRef_]);
geometry->SetDrawRange(desc.type_, desc.indexStart_, desc.indexCount_);
}
}
loadVBData_.Clear();
loadIBData_.Clear();
loadGeometries_.Clear();
return true;
}
/**
* @brief Creates a geometry object from vertices and indices.
* @param[in] vertices The object vertices
* @param[in] indices The object indices
* @return A geometry object
*/
Geometry CreateTexturedGeometry( Vector<TexturedVertex>& vertices, Vector<unsigned short>& indices )
{
// Vertices
Property::Map vertexFormat;
vertexFormat[POSITION] = Property::VECTOR3;
vertexFormat[NORMAL] = Property::VECTOR3;
vertexFormat[TEXTURE] = Property::VECTOR2;
PropertyBuffer surfaceVertices = PropertyBuffer::New( vertexFormat );
surfaceVertices.SetData( &vertices[0u], vertices.Size() );
Geometry geometry = Geometry::New();
geometry.AddVertexBuffer( surfaceVertices );
// Indices for triangle formulation
geometry.SetIndexBuffer( &indices[0u], indices.Size() );
return geometry;
}
/**
* Set a PropertyBuffer to be used as a source of indices for the geometry
*
* This buffer is required to have exactly one component and it must be of the
* type dali.PROPERTY_INTEGER
*
* By setting this buffer it will cause the geometry to be rendered using indices.
* To unset call SetIndexBuffer with an empty handle.
*
* @method setIndexBuffer
* @for Geometry
* @param {Object} indexBuffer PropertyBuffer to be used as a source of indices
* for the geometry
*/
void GeometryApi::SetIndexBuffer( const v8::FunctionCallbackInfo<v8::Value>& args )
{
v8::Isolate* isolate = args.GetIsolate();
v8::HandleScope handleScope( isolate );
Geometry geometry = GetGeometry( isolate, args );
bool found( false );
PropertyBuffer indexBuffer = PropertyBufferApi::GetPropertyBufferFromParams( 0, found, isolate, args );
if( !found )
{
DALI_SCRIPT_EXCEPTION( isolate, "invalid property buffer parameter" );
}
else
{
geometry.SetIndexBuffer(indexBuffer);
}
}
Geometry CreateQuadGeometry(void)
{
PropertyBuffer vertexData = CreatePropertyBuffer();
const float halfQuadSize = .5f;
struct TexturedQuadVertex { Vector2 position; Vector2 textureCoordinates; };
TexturedQuadVertex texturedQuadVertexData[4] = {
{ Vector2(-halfQuadSize, -halfQuadSize), Vector2(0.f, 0.f) },
{ Vector2( halfQuadSize, -halfQuadSize), Vector2(1.f, 0.f) },
{ Vector2(-halfQuadSize, halfQuadSize), Vector2(0.f, 1.f) },
{ Vector2( halfQuadSize, halfQuadSize), Vector2(1.f, 1.f) } };
vertexData.SetData(texturedQuadVertexData, 4);
unsigned short indexData[6] = { 0, 3, 1, 0, 2, 3 };
Geometry geometry = Geometry::New();
geometry.AddVertexBuffer( vertexData );
geometry.SetIndexBuffer( indexData, sizeof(indexData)/sizeof(indexData[0]) );
return geometry;
}
void Terrain::CreatePatchGeometry(TerrainPatch* patch)
{
URHO3D_PROFILE(CreatePatchGeometry);
unsigned row = (unsigned)(patchSize_ + 1);
VertexBuffer* vertexBuffer = patch->GetVertexBuffer();
Geometry* geometry = patch->GetGeometry();
Geometry* maxLodGeometry = patch->GetMaxLodGeometry();
Geometry* occlusionGeometry = patch->GetOcclusionGeometry();
if (vertexBuffer->GetVertexCount() != row * row)
vertexBuffer->SetSize(row * row, MASK_POSITION | MASK_NORMAL | MASK_TEXCOORD1 | MASK_TANGENT);
SharedArrayPtr<unsigned char> cpuVertexData(new unsigned char[row * row * sizeof(Vector3)]);
SharedArrayPtr<unsigned char> occlusionCpuVertexData(new unsigned char[row * row * sizeof(Vector3)]);
float* vertexData = (float*)vertexBuffer->Lock(0, vertexBuffer->GetVertexCount());
float* positionData = (float*)cpuVertexData.Get();
float* occlusionData = (float*)occlusionCpuVertexData.Get();
BoundingBox box;
unsigned occlusionLevel = occlusionLodLevel_;
if (occlusionLevel > numLodLevels_ - 1)
occlusionLevel = numLodLevels_ - 1;
if (vertexData)
{
const IntVector2& coords = patch->GetCoordinates();
int lodExpand = (1 << (occlusionLevel)) - 1;
int halfLodExpand = (1 << (occlusionLevel)) / 2;
for (int z = 0; z <= patchSize_; ++z)
{
for (int x = 0; x <= patchSize_; ++x)
{
int xPos = coords.x_ * patchSize_ + x;
int zPos = coords.y_ * patchSize_ + z;
// Position
Vector3 position((float)x * spacing_.x_, GetRawHeight(xPos, zPos), (float)z * spacing_.z_);
*vertexData++ = position.x_;
*vertexData++ = position.y_;
*vertexData++ = position.z_;
*positionData++ = position.x_;
*positionData++ = position.y_;
*positionData++ = position.z_;
box.Merge(position);
// For vertices that are part of the occlusion LOD, calculate the minimum height in the neighborhood
// to prevent false positive occlusion due to inaccuracy between occlusion LOD & visible LOD
float minHeight = position.y_;
if (halfLodExpand > 0 && (x & lodExpand) == 0 && (z & lodExpand) == 0)
{
int minX = Max(xPos - halfLodExpand, 0);
int maxX = Min(xPos + halfLodExpand, numVertices_.x_ - 1);
int minZ = Max(zPos - halfLodExpand, 0);
int maxZ = Min(zPos + halfLodExpand, numVertices_.y_ - 1);
for (int nZ = minZ; nZ <= maxZ; ++nZ)
{
for (int nX = minX; nX <= maxX; ++nX)
minHeight = Min(minHeight, GetRawHeight(nX, nZ));
}
}
*occlusionData++ = position.x_;
*occlusionData++ = minHeight;
*occlusionData++ = position.z_;
// Normal
Vector3 normal = GetRawNormal(xPos, zPos);
*vertexData++ = normal.x_;
*vertexData++ = normal.y_;
*vertexData++ = normal.z_;
// Texture coordinate
Vector2 texCoord((float)xPos / (float)numVertices_.x_, 1.0f - (float)zPos / (float)numVertices_.y_);
*vertexData++ = texCoord.x_;
*vertexData++ = texCoord.y_;
// Tangent
Vector3 xyz = (Vector3::RIGHT - normal * normal.DotProduct(Vector3::RIGHT)).Normalized();
*vertexData++ = xyz.x_;
*vertexData++ = xyz.y_;
*vertexData++ = xyz.z_;
*vertexData++ = 1.0f;
}
}
vertexBuffer->Unlock();
vertexBuffer->ClearDataLost();
}
patch->SetBoundingBox(box);
if (drawRanges_.Size())
{
unsigned occlusionDrawRange = occlusionLevel << 4;
geometry->SetIndexBuffer(indexBuffer_);
geometry->SetDrawRange(TRIANGLE_LIST, drawRanges_[0].first_, drawRanges_[0].second_, false);
geometry->SetRawVertexData(cpuVertexData, MASK_POSITION);
maxLodGeometry->SetIndexBuffer(indexBuffer_);
maxLodGeometry->SetDrawRange(TRIANGLE_LIST, drawRanges_[0].first_, drawRanges_[0].second_, false);
maxLodGeometry->SetRawVertexData(cpuVertexData, MASK_POSITION);
occlusionGeometry->SetIndexBuffer(indexBuffer_);
occlusionGeometry->SetDrawRange(TRIANGLE_LIST, drawRanges_[occlusionDrawRange].first_, drawRanges_[occlusionDrawRange].second_, false);
occlusionGeometry->SetRawVertexData(occlusionCpuVertexData, MASK_POSITION);
}
patch->ResetLod();
}
void Terrain::CreatePatchGeometry(TerrainPatch* patch)
{
PROFILE(CreatePatchGeometry);
unsigned row = patchSize_ + 1;
VertexBuffer* vertexBuffer = patch->GetVertexBuffer();
Geometry* geometry = patch->GetGeometry();
Geometry* maxLodGeometry = patch->GetMaxLodGeometry();
Geometry* minLodGeometry = patch->GetMinLodGeometry();
if (vertexBuffer->GetVertexCount() != row * row)
vertexBuffer->SetSize(row * row, MASK_POSITION | MASK_NORMAL | MASK_TEXCOORD1 | MASK_TANGENT);
SharedArrayPtr<unsigned char> cpuVertexData(new unsigned char[row * row * sizeof(Vector3)]);
float* vertexData = (float*)vertexBuffer->Lock(0, vertexBuffer->GetVertexCount());
float* positionData = (float*)cpuVertexData.Get();
BoundingBox box;
if (vertexData)
{
const IntVector2& coords = patch->GetCoordinates();
for (int z1 = 0; z1 <= patchSize_; ++z1)
{
for (int x1 = 0; x1 <= patchSize_; ++x1)
{
int xPos = coords.x_ * patchSize_ + x1;
int zPos = coords.y_ * patchSize_ + z1;
// Position
Vector3 position((float)x1 * spacing_.x_, GetRawHeight(xPos, zPos), (float)z1 * spacing_.z_);
*vertexData++ = position.x_;
*vertexData++ = position.y_;
*vertexData++ = position.z_;
*positionData++ = position.x_;
*positionData++ = position.y_;
*positionData++ = position.z_;
box.Merge(position);
// Normal
Vector3 normal = GetRawNormal(xPos, zPos);
*vertexData++ = normal.x_;
*vertexData++ = normal.y_;
*vertexData++ = normal.z_;
// Texture coordinate
Vector2 texCoord((float)xPos / (float)numVertices_.x_, 1.0f - (float)zPos / (float)numVertices_.y_);
*vertexData++ = texCoord.x_;
*vertexData++ = texCoord.y_;
// Tangent
Vector3 xyz = (Vector3::RIGHT - normal * normal.DotProduct(Vector3::RIGHT)).Normalized();
*vertexData++ = xyz.x_;
*vertexData++ = xyz.y_;
*vertexData++ = xyz.z_;
*vertexData++ = 1.0f;
}
}
vertexBuffer->Unlock();
vertexBuffer->ClearDataLost();
}
patch->SetBoundingBox(box);
if (drawRanges_.Size())
{
unsigned lastDrawRange = drawRanges_.Size() - 1;
geometry->SetIndexBuffer(indexBuffer_);
geometry->SetDrawRange(TRIANGLE_LIST, drawRanges_[0].first_, drawRanges_[0].second_, false);
geometry->SetRawVertexData(cpuVertexData, sizeof(Vector3), MASK_POSITION);
maxLodGeometry->SetIndexBuffer(indexBuffer_);
maxLodGeometry->SetDrawRange(TRIANGLE_LIST, drawRanges_[0].first_, drawRanges_[0].second_, false);
maxLodGeometry->SetRawVertexData(cpuVertexData, sizeof(Vector3), MASK_POSITION);
minLodGeometry->SetIndexBuffer(indexBuffer_);
minLodGeometry->SetDrawRange(TRIANGLE_LIST, drawRanges_[lastDrawRange].first_, drawRanges_[lastDrawRange].second_, false);
minLodGeometry->SetRawVertexData(cpuVertexData, sizeof(Vector3), MASK_POSITION);
}
// Offset the occlusion geometry by vertex spacing to reduce possibility of over-aggressive occlusion
patch->SetOcclusionOffset(-0.5f * (spacing_.x_ + spacing_.z_));
patch->ResetLod();
}
