Patch::Patch(Shader shader)
{
_transform = Transform();
_transform.position = glm::vec3();
_transform.rotation = glm::quat();
_transform.scale = glm::vec3(1.0f, 1.0f, 1.0f);
_transform.angularVelocity = glm::quat();
_transform.linearVelocity = glm::vec3();
_transform.rotationOrigin = glm::vec3();
_transform.scaleOrigin = glm::vec3();
GLfloat data = 0.0f;
GLint elements = 0;
glGenVertexArrays(1, &_vao);
glBindVertexArray(_vao);
glGenBuffers(1, &_vbo);
glBindBuffer(GL_ARRAY_BUFFER, _vbo);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * NUM_VERTS_STORED, &data, GL_DYNAMIC_DRAW);
glGenBuffers(1, &_ebo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _ebo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(GLint) * NUM_ELEMENTS, &elements, GL_DYNAMIC_DRAW);
// Bind buffer data to shader values
GLint posAttrib = glGetAttribLocation(shader.shaderPointer, "position");
glEnableVertexAttribArray(posAttrib);
glVertexAttribPointer(posAttrib, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), 0);
GLint normAttrib = glGetAttribLocation(shader.shaderPointer, "normal");
glEnableVertexAttribArray(normAttrib);
glVertexAttribPointer(normAttrib, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), (void*)(3 * sizeof(GLfloat)));
_curve = new RenderShape(_vao, NUM_ELEMENTS, GL_TRIANGLES, shader, glm::vec4(0.6f, 0.6f, 0.6f, 1.0f));
_curve->transform().parent = &_transform;
RenderManager::AddShape(_curve);
GeneratePlane();
}
bool initialize(WinMemViewerPtr viewer) {
float w = (float)viewer->width();
float h = (float)viewer->height();
texlist_.push_back(GridMipmap());
itex_ = 0;
nspace_ = 0;
GeneratePlane(output_.prims);
proj_ = Matrix44f::Perspective(kGSPI * 0.6f, w / h, 1.0f, 500.0f);//投影变换
output_.uniforms.texture = texlist_[itex_];//纹理
output_.uniforms.ambient.set(0.4f, 0.4f, 0.4f);//环境光
output_.uniforms.diffuse.set(0.587609f, 0.587609f, 0.587609f);//漫反射
output_.uniforms.specular.set(0.071744f, 0.071744f, 0.071744f);//镜面反射
alpha_ = 0.0f;
pos_ = 3.5f;
sample_cat_ = 0;
viewer_ = viewer;
return true;
}
int main(int argc, char **argv)
{
// generate the plane
std::vector<int> pl = GeneratePlane(PLANE_SIZE);
int tri_count = 2 * (PLANE_SIZE-1) * (PLANE_SIZE-1);
printf("Mesh triangle count: %d\n", tri_count);
VertexCache vertex_cache;
int misses = vertex_cache.GetCacheMissCount(&pl[0], tri_count);
printf("*** Before optimization ***\n");
printf("Cache misses\t: %d\n", misses);
printf("ACMR\t\t: %f\n", (float)misses / (float)tri_count);
VertexCacheOptimizer vco;
printf("Optimizing ... \n");
unsigned int time = GetMSec();
VertexCacheOptimizer::Result res = vco.Optimize(&pl[0], tri_count);
time = GetMSec() - time;
if (res)
{
printf("Error\n");
return 0;
}
printf("Optimized in %f seconds (%d ns/triangle)\n",
time / 1000.0f, (time * 1000) / tri_count);
misses = vertex_cache.GetCacheMissCount(&pl[0], tri_count);
printf("*** After optimization ***\n");
printf("Cache misses\t: %d\n", misses);
printf("ACMR\t\t: %f\n", (float)misses / (float)tri_count);
return 0;
}
SubMesh* Mesh::BuildSubMesh(const Primitive& primitive, const MeshParams& params)
{
#if NAZARA_UTILITY_SAFE
if (!m_impl)
{
NazaraError("Mesh not created");
return nullptr;
}
if (m_impl->animationType != AnimationType_Static)
{
NazaraError("Mesh must be static");
return nullptr;
}
if (!params.IsValid())
{
NazaraError("Parameters must be valid");
return nullptr;
}
#endif
Boxf aabb;
IndexBufferRef indexBuffer;
VertexBufferRef vertexBuffer;
Matrix4f matrix(primitive.matrix);
matrix.ApplyScale(params.scale);
VertexDeclaration* declaration = VertexDeclaration::Get(VertexLayout_XYZ_Normal_UV_Tangent);
switch (primitive.type)
{
case PrimitiveType_Box:
{
unsigned int indexCount;
unsigned int vertexCount;
ComputeBoxIndexVertexCount(primitive.box.subdivision, &indexCount, &vertexCount);
indexBuffer = IndexBuffer::New(vertexCount > std::numeric_limits<UInt16>::max(), indexCount, params.storage, BufferUsage_Static);
vertexBuffer = VertexBuffer::New(declaration, vertexCount, params.storage, BufferUsage_Static);
VertexMapper vertexMapper(vertexBuffer, BufferAccess_WriteOnly);
VertexPointers pointers;
pointers.normalPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Normal);
pointers.positionPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Position);
pointers.tangentPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Tangent);
pointers.uvPtr = vertexMapper.GetComponentPtr<Vector2f>(VertexComponent_TexCoord);
IndexMapper indexMapper(indexBuffer, BufferAccess_WriteOnly);
GenerateBox(primitive.box.lengths, primitive.box.subdivision, matrix, primitive.textureCoords, pointers, indexMapper.begin(), &aabb);
break;
}
case PrimitiveType_Cone:
{
unsigned int indexCount;
unsigned int vertexCount;
ComputeConeIndexVertexCount(primitive.cone.subdivision, &indexCount, &vertexCount);
indexBuffer = IndexBuffer::New(vertexCount > std::numeric_limits<UInt16>::max(), indexCount, params.storage, BufferUsage_Static);
vertexBuffer = VertexBuffer::New(declaration, vertexCount, params.storage, BufferUsage_Static);
VertexMapper vertexMapper(vertexBuffer, BufferAccess_WriteOnly);
VertexPointers pointers;
pointers.normalPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Normal);
pointers.positionPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Position);
pointers.tangentPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Tangent);
pointers.uvPtr = vertexMapper.GetComponentPtr<Vector2f>(VertexComponent_TexCoord);
IndexMapper indexMapper(indexBuffer, BufferAccess_WriteOnly);
GenerateCone(primitive.cone.length, primitive.cone.radius, primitive.cone.subdivision, matrix, primitive.textureCoords, pointers, indexMapper.begin(), &aabb);
break;
}
case PrimitiveType_Plane:
{
unsigned int indexCount;
unsigned int vertexCount;
ComputePlaneIndexVertexCount(primitive.plane.subdivision, &indexCount, &vertexCount);
indexBuffer = IndexBuffer::New(vertexCount > std::numeric_limits<UInt16>::max(), indexCount, params.storage, BufferUsage_Static);
vertexBuffer = VertexBuffer::New(declaration, vertexCount, params.storage, BufferUsage_Static);
VertexMapper vertexMapper(vertexBuffer, BufferAccess_WriteOnly);
VertexPointers pointers;
pointers.normalPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Normal);
pointers.positionPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Position);
pointers.tangentPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Tangent);
pointers.uvPtr = vertexMapper.GetComponentPtr<Vector2f>(VertexComponent_TexCoord);
IndexMapper indexMapper(indexBuffer, BufferAccess_WriteOnly);
GeneratePlane(primitive.plane.subdivision, primitive.plane.size, matrix, primitive.textureCoords, pointers, indexMapper.begin(), &aabb);
break;
}
case PrimitiveType_Sphere:
{
switch (primitive.sphere.type)
{
case SphereType_Cubic:
{
unsigned int indexCount;
unsigned int vertexCount;
ComputeCubicSphereIndexVertexCount(primitive.sphere.cubic.subdivision, &indexCount, &vertexCount);
indexBuffer = IndexBuffer::New(vertexCount > std::numeric_limits<UInt16>::max(), indexCount, params.storage, BufferUsage_Static);
vertexBuffer = VertexBuffer::New(declaration, vertexCount, params.storage, BufferUsage_Static);
VertexMapper vertexMapper(vertexBuffer, BufferAccess_ReadWrite);
VertexPointers pointers;
pointers.normalPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Normal);
pointers.positionPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Position);
pointers.tangentPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Tangent);
pointers.uvPtr = vertexMapper.GetComponentPtr<Vector2f>(VertexComponent_TexCoord);
IndexMapper indexMapper(indexBuffer, BufferAccess_WriteOnly);
GenerateCubicSphere(primitive.sphere.size, primitive.sphere.cubic.subdivision, matrix, primitive.textureCoords, pointers, indexMapper.begin(), &aabb);
break;
}
case SphereType_Ico:
{
unsigned int indexCount;
unsigned int vertexCount;
ComputeIcoSphereIndexVertexCount(primitive.sphere.ico.recursionLevel, &indexCount, &vertexCount);
indexBuffer = IndexBuffer::New(vertexCount > std::numeric_limits<UInt16>::max(), indexCount, params.storage, BufferUsage_Static);
vertexBuffer = VertexBuffer::New(declaration, vertexCount, params.storage, BufferUsage_Static);
VertexMapper vertexMapper(vertexBuffer, BufferAccess_WriteOnly);
VertexPointers pointers;
pointers.normalPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Normal);
pointers.positionPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Position);
pointers.tangentPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Tangent);
pointers.uvPtr = vertexMapper.GetComponentPtr<Vector2f>(VertexComponent_TexCoord);
IndexMapper indexMapper(indexBuffer, BufferAccess_WriteOnly);
GenerateIcoSphere(primitive.sphere.size, primitive.sphere.ico.recursionLevel, matrix, primitive.textureCoords, pointers, indexMapper.begin(), &aabb);
break;
}
case SphereType_UV:
{
unsigned int indexCount;
unsigned int vertexCount;
ComputeUvSphereIndexVertexCount(primitive.sphere.uv.sliceCount, primitive.sphere.uv.stackCount, &indexCount, &vertexCount);
indexBuffer = IndexBuffer::New(vertexCount > std::numeric_limits<UInt16>::max(), indexCount, params.storage, BufferUsage_Static);
vertexBuffer = VertexBuffer::New(declaration, vertexCount, params.storage, BufferUsage_Static);
VertexMapper vertexMapper(vertexBuffer, BufferAccess_WriteOnly);
VertexPointers pointers;
pointers.normalPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Normal);
pointers.positionPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Position);
pointers.tangentPtr = vertexMapper.GetComponentPtr<Vector3f>(VertexComponent_Tangent);
pointers.uvPtr = vertexMapper.GetComponentPtr<Vector2f>(VertexComponent_TexCoord);
IndexMapper indexMapper(indexBuffer, BufferAccess_WriteOnly);
GenerateUvSphere(primitive.sphere.size, primitive.sphere.uv.sliceCount, primitive.sphere.uv.stackCount, matrix, primitive.textureCoords, pointers, indexMapper.begin(), &aabb);
break;
}
}
break;
}
}
StaticMeshRef subMesh = StaticMesh::New(this);
if (!subMesh->Create(vertexBuffer))
{
NazaraError("Failed to create StaticMesh");
return nullptr;
}
if (params.optimizeIndexBuffers)
indexBuffer->Optimize();
subMesh->SetAABB(aabb);
subMesh->SetIndexBuffer(indexBuffer);
AddSubMesh(subMesh);
return subMesh;
}
Patch::Patch(RenderShape& markerTemplate, RenderShape& slopeLineTemplate)
{
_transform = Transform();
_transform.position = glm::vec3();
_transform.rotation = glm::quat();
_transform.scale = glm::vec3(1.0f, 1.0f, 1.0f);
_transform.angularVelocity = glm::quat();
_transform.linearVelocity = glm::vec3();
_transform.rotationOrigin = glm::vec3();
_transform.scaleOrigin = glm::vec3();
GLfloat data = 0.0f;
GLint elements = 0;
glGenVertexArrays(1, &_vao);
glBindVertexArray(_vao);
glGenBuffers(1, &_vbo);
glBindBuffer(GL_ARRAY_BUFFER, _vbo);
glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat), &data, GL_DYNAMIC_DRAW);
glGenBuffers(1, &_ebo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _ebo);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(GLint), &elements, GL_DYNAMIC_DRAW);
// Bind buffer data to shader values
GLint posAttrib = glGetAttribLocation(slopeLineTemplate.shader().shaderPointer, "position");
glEnableVertexAttribArray(posAttrib);
glVertexAttribPointer(posAttrib, 3, GL_FLOAT, GL_FALSE, 0, 0);
GLint uTransform = glGetUniformLocation(slopeLineTemplate.shader().shaderPointer, "transform");
GLint uColor = glGetUniformLocation(slopeLineTemplate.shader().shaderPointer, "color");
_curve = new RenderShape(_vao, NUM_ELEMENTS, GL_TRIANGLES, slopeLineTemplate.shader(), glm::vec4(0.6f, 0.6f, 0.6f, 1.0f));
_curve->transform().parent = &_transform;
RenderManager::AddShape(_curve);
GeneratePlane();
for (int i = 0; i < 16; ++i)
{
_controlPointMarkers[i] = new RenderShape(markerTemplate);
_controlPointMarkers[i]->transform().scale = glm::vec3(0.01f, 0.01f, 0.01f);
_controlPointMarkers[i]->transform().position = _controlPoints[i];
_controlPointMarkers[i]->transform().parent = &_curve->transform();
RenderManager::AddShape(_controlPointMarkers[i]);
}
for (int i = 0; i < 8; ++i)
{
_slopeLines[i] = new RenderShape(slopeLineTemplate);
_slopeLines[i]->transform().parent = &_curve->transform();
RenderManager::AddShape(_slopeLines[i]);
}
_controlPointsActive = true;
}