//----------------------------------------------------------------------------
bool WireMeshWindow::CreateScene()
{
std::string path = mEnvironment.GetPath("WireMesh.hlsl");
std::shared_ptr<VertexShader> vshader(ShaderFactory::CreateVertex(path));
if (!vshader)
{
return false;
}
std::shared_ptr<GeometryShader> gshader(ShaderFactory::CreateGeometry(
path));
if (!gshader)
{
return false;
}
std::shared_ptr<PixelShader> pshader(ShaderFactory::CreatePixel(path));
if (!pshader)
{
return false;
}
std::shared_ptr<ConstantBuffer> parameters(
new ConstantBuffer(3 * sizeof(Vector4<float>), false));
Vector4<float>* data = parameters->Get<Vector4<float>>();
data[0] = Vector4<float>(0.0f, 0.0f, 1.0f, 1.0f); // mesh color
data[1] = Vector4<float>(0.0f, 0.0f, 0.0f, 1.0f); // edge color
data[2] = Vector4<float>((float)mXSize, (float)mYSize, 0.0f, 0.0f);
vshader->Set("WireParameters", parameters);
gshader->Set("WireParameters", parameters);
pshader->Set("WireParameters", parameters);
std::shared_ptr<ConstantBuffer> cbuffer(
new ConstantBuffer(sizeof(Matrix4x4<float>), true));
vshader->Set("PVWMatrix", cbuffer);
std::shared_ptr<VisualEffect> effect(new VisualEffect(vshader, pshader,
gshader));
VertexFormat vformat;
vformat.Bind(VA_POSITION, DF_R32G32B32_FLOAT, 0);
MeshFactory mf;
mf.SetVertexFormat(vformat);
mMesh = mf.CreateSphere(16, 16, 1.0f);
mMesh->SetEffect(effect);
mMesh->Update();
SubscribeCW(mMesh, cbuffer);
return true;
}
//----------------------------------------------------------------------------
void PerformanceAMDWindow::CreateScene()
{
struct Vertex
{
Vector3<float> position;
Vector2<float> tcoord;
};
VertexFormat vformat;
vformat.Bind(VA_POSITION, DF_R32G32B32_FLOAT, 0);
vformat.Bind(VA_TEXCOORD, DF_R32G32_FLOAT, 0);
unsigned int const numTriangles = 1024;
unsigned int const numVertices = 3 * numTriangles;
std::shared_ptr<VertexBuffer> vbuffer(new VertexBuffer(vformat,
numVertices));
// Randomly generate positions and texture coordinates.
std::mt19937 mte;
std::uniform_real_distribution<float> unirnd(0.0f, 1.0f);
std::uniform_real_distribution<float> symrnd(-1.0f, 1.0f);
Vertex* vertex = vbuffer->Get<Vertex>();
for (unsigned int i = 0; i < numVertices; ++i)
{
for (int j = 0; j < 3; ++j)
{
vertex[i].position[j] = symrnd(mte);
}
for (int j = 0; j < 2; ++j)
{
vertex[i].tcoord[j] = unirnd(mte);
}
}
// The vertices are not indexed. Each consecutive triple is a triangle.
std::shared_ptr<IndexBuffer> ibuffer(new IndexBuffer(IP_TRIMESH,
numTriangles));
// Use a standard texture effect.
std::shared_ptr<Texture2Effect> effect(new Texture2Effect(
mProgramFactory, mBlurredTexture, SamplerState::MIN_L_MAG_L_MIP_P,
SamplerState::CLAMP, SamplerState::CLAMP));
mPVWMatrix = effect->GetPVWMatrixConstant();
mTriangles.reset(new Visual(vbuffer, ibuffer, effect));
SubscribeCW(mTriangles, mPVWMatrix);
EnableObjectMotion();
}
//----------------------------------------------------------------------------
bool StructuredBuffersWindow::CreateScene()
{
// Create the shaders and associated resources
HLSLDefiner definer;
definer.SetInt("WINDOW_WIDTH", mXSize);
std::shared_ptr<VertexShader> vshader(ShaderFactory::CreateVertex(
mEnvironment.GetPath("StructuredBuffers.hlsl"), definer));
if (!vshader)
{
return false;
}
std::shared_ptr<PixelShader> pshader(ShaderFactory::CreatePixel(
mEnvironment.GetPath("StructuredBuffers.hlsl"), definer));
if (!pshader)
{
return false;
}
std::shared_ptr<ConstantBuffer> cbuffer(new ConstantBuffer(
sizeof(Matrix4x4<float>), true));
vshader->Set("PVWMatrix", cbuffer);
// Create the pixel shader and associated resources.
std::string path = mEnvironment.GetPath("StoneWall.png");
std::shared_ptr<Texture2> baseTexture(WICFileIO::Load(path, false));
pshader->Set("baseTexture", baseTexture);
std::shared_ptr<SamplerState> baseSampler(new SamplerState());
baseSampler->filter = SamplerState::MIN_L_MAG_L_MIP_P;
baseSampler->mode[0] = SamplerState::CLAMP;
baseSampler->mode[1] = SamplerState::CLAMP;
pshader->Set("baseSampler", baseSampler);
mDrawnPixels.reset(new StructuredBuffer(mXSize*mYSize,
sizeof(Vector4<float>)));
mDrawnPixels->SetUsage(Resource::SHADER_OUTPUT);
mDrawnPixels->SetCopyType(Resource::COPY_BIDIRECTIONAL);
memset(mDrawnPixels->GetData(), 0, mDrawnPixels->GetNumBytes());
pshader->Set("drawnPixels", mDrawnPixels);
// Create the visual effect for the square.
std::shared_ptr<VisualEffect> effect(new VisualEffect(vshader, pshader));
// Create a vertex buffer for a single triangle. The PNG is stored in
// left-handed coordinates. The texture coordinates are chosen to reflect
// the texture in the y-direction.
struct Vertex
{
Vector3<float> position;
Vector2<float> tcoord;
};
VertexFormat vformat;
vformat.Bind(VA_POSITION, DF_R32G32B32_FLOAT, 0);
vformat.Bind(VA_TEXCOORD, DF_R32G32_FLOAT, 0);
std::shared_ptr<VertexBuffer> vbuffer(new VertexBuffer(vformat, 4));
Vertex* vertex = vbuffer->Get<Vertex>();
vertex[0].position = Vector3<float>(0.0f, 0.0f, 0.0f);
vertex[0].tcoord = Vector2<float>(0.0f, 1.0f);
vertex[1].position = Vector3<float>(1.0f, 0.0f, 0.0f);
vertex[1].tcoord = Vector2<float>(1.0f, 1.0f);
vertex[2].position = Vector3<float>(0.0f, 1.0f, 0.0f);
vertex[2].tcoord = Vector2<float>(0.0f, 0.0f);
vertex[3].position = Vector3<float>(1.0f, 1.0f, 0.0f);
vertex[3].tcoord = Vector2<float>(1.0f, 0.0f);
// Create an indexless buffer for a triangle mesh with two triangles.
std::shared_ptr<IndexBuffer> ibuffer(new IndexBuffer(IP_TRISTRIP, 2));
// Create the geometric object for drawing. Translate it so that its
// center of mass is at the origin. This supports virtual trackball
// motion about the object "center".
mSquare.reset(new Visual(vbuffer, ibuffer, effect));
mSquare->localTransform.SetTranslation(-0.5f, -0.5f, 0.0f);
mSquare->Update();
// Enable automatic updates of pvw-matrices and w-matrices.
SubscribeCW(mSquare, cbuffer);
// The structured buffer is written in the pixel shader. This texture
// will receive a copy of it so that we can write the results to disk
// as a PNG file.
mDrawnPixelsTexture = new Texture2(DF_R8G8B8A8_UNORM, mXSize, mYSize);
return true;
}
