Method onLoad

Source/Samples/MultiSampling/MultiSampling.cpp:42–78

MultiSampling::~MultiSampling() {}

void MultiSampling::onLoad(RenderContext* pRenderContext)
{
    // Load program
    mpRasterPass = RasterPass::create(getDevice(), "Samples/MultiSampling/MultiSampling.3d.slang", "vsMain", "psMain");

    // Create disk triangles
    float2 vertices[kTriangleCount * 3];
    for (uint32_t i = 0; i < kTriangleCount; ++i)
    {
        float theta0 = float(i) / kTriangleCount * M_2PI;
        float theta1 = float(i + 1) / kTriangleCount * M_2PI;
        vertices[i * 3 + 0] = float2(0, 0);
        vertices[i * 3 + 1] = float2(cos(theta0), sin(theta0)) * 0.75f;
        vertices[i * 3 + 2] = float2(cos(theta1), sin(theta1)) * 0.75f;
    }
    auto vertexBuffer = getDevice()->createTypedBuffer<float2>(
        kTriangleCount * 3, ResourceBindFlags::ShaderResource | ResourceBindFlags::Vertex, MemoryType::DeviceLocal, vertices
    );

    // Create vertex layout
    auto bufferLayout = VertexBufferLayout::create();
    bufferLayout->addElement("POSITION", 0, ResourceFormat::RG32Float, 1, 0);
    auto layout = VertexLayout::create();
    layout->addBufferLayout(0, bufferLayout);

    // Create VAO
    mpVao = Vao::create(Vao::Topology::TriangleList, layout, {vertexBuffer});

    // Create FBO
    mpFbo = Fbo::create(getDevice());
    ref<Texture> tex = getDevice()->createTexture2DMS(
        128, 128, ResourceFormat::RGBA32Float, kSampleCount, 1, ResourceBindFlags::ShaderResource | ResourceBindFlags::RenderTarget
    );
    mpFbo->attachColorTarget(tex, 0);

    mpResolvedTexture = getDevice()->createTexture2D(128, 128, ResourceFormat::RGBA32Float, 1, 1);
}

void MultiSampling::onFrameRender(RenderContext* pRenderContext, const ref<Fbo>& pTargetFbo)
{