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#include "RenderConfigs.hpp"
#include "AssetManager.hpp"
Gbuffer::Gbuffer(size_t geomW, size_t geomH, size_t lightW, size_t lightH) {
auto gal = Gal::GetImplementation();
auto colorConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::R8G8B8A8);
color = gal->BuildTexture(colorConf);
auto normalConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::R8G8B8A8);
normal = gal->BuildTexture(normalConf);
auto dsConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::D24S8);
depthStencil = gal->BuildTexture(dsConf);
auto geomFbConf = gal->CreateFramebufferConfig();
geomFbConf->SetTexture(0, color);
geomFbConf->SetTexture(1, normal);
geomFbConf->SetDepthStencil(depthStencil);
geomFramebuffer = gal->BuildFramebuffer(geomFbConf);
geomFramebuffer->SetViewport(0, 0, geomW, geomH);
auto finalColorConf = gal->CreateTexture2DConfig(lightW, lightH, Gal::Format::R8G8B8A8);
finalColor = gal->BuildTexture(finalColorConf);
auto lightFbConf = gal->CreateFramebufferConfig();
lightFbConf->SetTexture(0, finalColor);
lightFramebuffer = gal->BuildFramebuffer(lightFbConf);
lightFramebuffer->SetViewport(0, 0, lightW, lightH);
std::string vertexSource, pixelSource;
{
auto vertAsset = AssetManager::GetAssetByAssetName("/altcraft/shaders/vert/light");
vertexSource = std::string((char*)vertAsset->data.data(), (char*)vertAsset->data.data() + vertAsset->data.size());
auto pixelAsset = AssetManager::GetAssetByAssetName("/altcraft/shaders/frag/light");
pixelSource = std::string((char*)pixelAsset->data.data(), (char*)pixelAsset->data.data() + pixelAsset->data.size());
}
auto lightPPC = gal->CreatePipelineConfig();
lightPPC->SetTarget(lightFramebuffer);
lightPPC->AddStaticTexture("color", color);
lightPPC->AddStaticTexture("normal", normal);
lightPPC->AddStaticTexture("depthStencil", depthStencil);
lightPPC->SetVertexShader(gal->LoadVertexShader(vertexSource));
lightPPC->SetPixelShader(gal->LoadPixelShader(pixelSource));
auto lightBB = lightPPC->BindVertexBuffer({
{"pos", Gal::Type::Vec2},
{"uvPos", Gal::Type::Vec2}
});
lightPipeline = gal->BuildPipeline(lightPPC);
constexpr float quadVertices[] = {
// pos // uv
-1.0f, 1.0f, 0.0f, 1.0f,
-1.0f, -1.0f, 0.0f, 0.0f,
1.0f, -1.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 1.0f,
1.0f, -1.0f, 1.0f, 0.0f,
1.0f, 1.0f, 1.0f, 1.0f
};
lightBuffer = gal->CreateBuffer();
lightBuffer->SetData({ reinterpret_cast<const std::byte*>(quadVertices), reinterpret_cast<const std::byte*>(quadVertices) + sizeof(quadVertices) });
lightPipelineInstance = lightPipeline->CreateInstance({
{lightBB, lightBuffer}
});
}
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