Ssao::Ssao(ID3D11Device* device, ID3D11DeviceContext* dc, int width, int height, float fovy, float farZ)
: md3dDevice(device), mDC(dc), mScreenQuadVB(0), mScreenQuadIB(0), mRandomVectorSRV(0),
mNormalDepthRTV(0), mNormalDepthSRV(0), mAmbientRTV0(0), mAmbientSRV0(0), mAmbientRTV1(0), mAmbientSRV1(0)
{
OnSize(width, height, fovy, farZ);
BuildFullScreenQuad();
BuildOffsetVectors();
BuildRandomVectorTexture();
}
void SSAO::Initialize(int screenWidth, int screenHeight, float farC, float nearC, float fov) {
_app->SwitchActive("sib");
_screenHeight = screenHeight;
_screenWidth = screenWidth;
_showDebug = false;
_near = nearC;
_far = farC;
_fov = fov;
_kernalSize = 16;
_noiseSize = 64;
_rad = 0.065;
_totStrength = 1.6;
_strength = 0.7;
_offset = 18;
_falloff = 0.0001;
_defrad = 0.02;
_deftotStrength = 3.38;
_defstrength = 0.7;
_defoffset = 18;
_deffalloff = 0.0002;
_blurSize = 4;
_defblurSize = 4;
srand(time(NULL));
//create cosntant buffer
D3D11_BUFFER_DESC ssaoBuff;
ssaoBuff.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
ssaoBuff.ByteWidth = sizeof(SSAOBuffer);
ssaoBuff.Usage = D3D11_USAGE_DYNAMIC;
ssaoBuff.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
ssaoBuff.MiscFlags = 0;
ssaoBuff.StructureByteStride = 0;
_device->CreateBuffer(&ssaoBuff, 0, &_ssaoBuffer);
//create cosntant buffer
D3D11_BUFFER_DESC ssaoBuff2;
ssaoBuff2.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
ssaoBuff2.ByteWidth = sizeof(SSAOBuffer2);
ssaoBuff2.Usage = D3D11_USAGE_DYNAMIC;
ssaoBuff2.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
ssaoBuff2.MiscFlags = 0;
ssaoBuff2.StructureByteStride = 0;
HRESULT hret = _device->CreateBuffer(&ssaoBuff2, 0, &_ssaoBuffer2);
_deviceContext->PSSetConstantBuffers(11, 1, &_ssaoBuffer2);
_deviceContext->PSSetConstantBuffers(10, 1, &_ssaoBuffer);
_deviceContext->VSSetConstantBuffers(10, 1, &_ssaoBuffer);
//initialize render targets
_normalAndDepthBuffer = new RenderTarget(_device, _deviceContext);
_normalAndDepthBuffer->CreateRenderTarget(_screenWidth, _screenHeight, DXGI_FORMAT_R32G32B32A32_FLOAT);
_ssaoRT = new RenderTarget(_device, _deviceContext);
_ssaoRT->CreateRenderTarget(_screenWidth, _screenHeight, DXGI_FORMAT_R32_FLOAT);
_blurRT = new RenderTarget(_device, _deviceContext);
_blurRT->CreateRenderTarget(_screenWidth, _screenHeight, DXGI_FORMAT_R32_FLOAT);
BuildFullScreenQuad();
BuildSampleKernal();
BuildNoise();
BuildFrustumCorner();
BuildTextures();
BuildUI();
_ndPass= new ShaderProgram(_device, _deviceContext);
_ndPass->CompileShaders(L"media/hlsl/normalAndDepthPass.vsh", L"media/hlsl/normalAndDepthPass.psh");
_ssaoPass= new ShaderProgram(_device, _deviceContext);
_ssaoPass->CompileShaders(L"media/hlsl/ssaoPass.vsh", L"media/hlsl/ssaoPass.psh");
_blurPass= new ShaderProgram(_device, _deviceContext);
_blurPass->CompileShaders(L"media/hlsl/blurrPass.vsh", L"media/hlsl/blurrPass.psh");
_debug= new ShaderProgram(_device, _deviceContext);
_debug->CompileShaders(L"media/hlsl/debug.vsh", L"media/hlsl/debug.psh");
UpdateBuffer();
UpdateBuffer2();
}
