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DeferredShading demo: Add a skybox

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This commit is contained in:
Jérôme Leclercq
2021-06-01 16:29:24 +02:00
parent 6fe7e5b16b
commit 56b8d83bab
2 changed files with 151 additions and 5 deletions
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89
examples/DeferredShading/main.cpp
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@@ -108,6 +108,7 @@ int main()
texParams.renderDevice = device;
texParams.loadFormat = Nz::PixelFormat::RGBA8_SRGB;
// Plane
Nz::MeshParams meshPrimitiveParams;
meshPrimitiveParams.storage = Nz::DataStorage::Software;
@@ -119,8 +120,49 @@ int main()
std::shared_ptr<Nz::GraphicalMesh> planeMeshGfx = std::make_shared<Nz::GraphicalMesh>(*planeMesh);
// Skybox
meshPrimitiveParams.vertexDeclaration = Nz::VertexDeclaration::Get(Nz::VertexLayout::XYZ);
std::shared_ptr<Nz::Mesh> cubeMesh = std::make_shared<Nz::Mesh>();
cubeMesh->CreateStatic();
cubeMesh->BuildSubMesh(Nz::Primitive::Box(Nz::Vector3f::Unit(), Nz::Vector3ui(0), Nz::Matrix4f::Scale({ 1.f, -1.f, 1.f })), meshPrimitiveParams);
cubeMesh->SetMaterialCount(1);
std::shared_ptr<Nz::GraphicalMesh> cubeMeshGfx = std::make_shared<Nz::GraphicalMesh>(*cubeMesh);
Nz::RenderPipelineLayoutInfo pipelineLayoutInfo;
auto& uboBinding = pipelineLayoutInfo.bindings.emplace_back();
uboBinding.index = 0;
uboBinding.shaderStageFlags = Nz::ShaderStageType::Vertex;
uboBinding.type = Nz::ShaderBindingType::UniformBuffer;
auto& textureBinding = pipelineLayoutInfo.bindings.emplace_back();
textureBinding.index = 1;
textureBinding.shaderStageFlags = Nz::ShaderStageType::Fragment;
textureBinding.type = Nz::ShaderBindingType::Texture;
std::shared_ptr<Nz::RenderPipelineLayout> skyboxPipelineLayout = device->InstantiateRenderPipelineLayout(std::move(pipelineLayoutInfo));
Nz::RenderPipelineInfo skyboxPipelineInfo;
skyboxPipelineInfo.depthBuffer = true;
skyboxPipelineInfo.depthCompare = Nz::RendererComparison::Equal;
skyboxPipelineInfo.faceCulling = true;
skyboxPipelineInfo.cullingSide = Nz::FaceSide::Front;
skyboxPipelineInfo.pipelineLayout = skyboxPipelineLayout;
skyboxPipelineInfo.shaderModules.push_back(device->InstantiateShaderModule(Nz::ShaderStageType::Fragment | Nz::ShaderStageType::Vertex, Nz::ShaderLanguage::NazaraShader, resourceDir / "skybox.nzsl", {}));
skyboxPipelineInfo.vertexBuffers.push_back({
0,
meshPrimitiveParams.vertexDeclaration
});
std::shared_ptr<Nz::RenderPipeline> skyboxPipeline = device->InstantiateRenderPipeline(std::move(skyboxPipelineInfo));
Nz::TextureParams skyboxTexParams;
skyboxTexParams.renderDevice = device;
std::shared_ptr<Nz::Texture> skyboxTexture = Nz::Texture::LoadCubemapFromFile(resourceDir / "skybox-space.png", skyboxTexParams);
// Cone mesh
std::shared_ptr<Nz::Mesh> coneMesh = std::make_shared<Nz::Mesh>();
coneMesh->CreateStatic();
coneMesh->BuildSubMesh(Nz::Primitive::Cone(1.f, 1.f, 16, Nz::Matrix4f::Rotate(Nz::EulerAnglesf(90.f, 0.f, 0.f))), meshPrimitiveParams);
@@ -436,7 +478,28 @@ int main()
bool viewerUboUpdate = true;
Nz::BakedFrameGraph bakedGraph = [&]{
std::shared_ptr<Nz::TextureSampler> textureSampler = device->InstantiateTextureSampler({});
std::shared_ptr<Nz::ShaderBinding> skyboxShaderBinding = skyboxPipelineLayout->AllocateShaderBinding();
skyboxShaderBinding->Update({
{
0,
Nz::ShaderBinding::UniformBufferBinding {
viewerDataUBO.get(),
0, viewerDataUBO->GetSize()
}
},
{
1,
Nz::ShaderBinding::TextureBinding {
skyboxTexture.get(),
textureSampler.get()
}
}
});
Nz::BakedFrameGraph bakedGraph = [&]
{
Nz::FrameGraph graph;
colorTexture = graph.AddAttachment({
@@ -544,7 +607,26 @@ int main()
lightingPass.SetClearColor(lightingPass.AddOutput(backbuffer), Nz::Color::Black);
lightingPass.SetDepthStencilInput(depthBuffer);
lightingPass.SetDepthStencilOutput(depthBuffer);
//lightingPass.SetDepthStencilInput(depthBuffer);
Nz::FramePass& forwardPass = graph.AddPass("Forward pass");
forwardPass.SetCommandCallback([&](Nz::CommandBufferBuilder& builder)
{
builder.SetScissor(Nz::Recti{ 0, 0, int(offscreenWidth), int(offscreenHeight) });
builder.SetViewport(Nz::Recti{ 0, 0, int(offscreenWidth), int(offscreenHeight) });
builder.BindShaderBinding(*skyboxShaderBinding);
builder.BindIndexBuffer(cubeMeshGfx->GetIndexBuffer(0).get());
builder.BindVertexBuffer(0, cubeMeshGfx->GetVertexBuffer(0).get());
builder.BindPipeline(*skyboxPipeline);
builder.DrawIndexed(static_cast<Nz::UInt32>(cubeMeshGfx->GetIndexCount(0)));
});
forwardPass.AddInput(backbuffer);
forwardPass.AddOutput(backbuffer);
forwardPass.SetDepthStencilInput(depthBuffer);
forwardPass.SetDepthStencilOutput(depthBuffer);
graph.SetBackbufferOutput(backbuffer);
@@ -553,8 +635,6 @@ int main()
bakedGraph.Resize(offscreenWidth, offscreenHeight);
std::shared_ptr<Nz::TextureSampler> textureSampler = device->InstantiateTextureSampler({});
for (std::size_t i = 0; i < MaxPointLight; ++i)
{
@@ -787,7 +867,6 @@ int main()
Nz::Vector3f position = Nz::Matrix4f::Rotate(Nz::EulerAnglesf(0.f, elapsedTime * 45.f * rotationSpeed, 0.f)) * spotLight.position;
Nz::Vector3f direction = Nz::Matrix4f::Rotate(Nz::EulerAnglesf(0.f, elapsedTime * 90.f * rotationSpeed, 0.f)) * spotLight.direction;
Nz::AccessByOffset<Nz::Vector3f&>(lightDataPtr, colorOffset) = Nz::Vector3f(spotLight.color.r / 255.f, spotLight.color.g / 255.f, spotLight.color.b / 255.f);
Nz::AccessByOffset<Nz::Vector3f&>(lightDataPtr, positionOffset) = position;
Nz::AccessByOffset<Nz::Vector3f&>(lightDataPtr, directionOffset) = direction;