summaryrefslogtreecommitdiffstats
path: root/src/RenderConfigs.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/RenderConfigs.cpp')
-rw-r--r--src/RenderConfigs.cpp287
1 files changed, 287 insertions, 0 deletions
diff --git a/src/RenderConfigs.cpp b/src/RenderConfigs.cpp
new file mode 100644
index 0000000..78b442d
--- /dev/null
+++ b/src/RenderConfigs.cpp
@@ -0,0 +1,287 @@
+#include "RenderConfigs.hpp"
+
+#include <chrono>
+#include <random>
+
+#include "AssetManager.hpp"
+
+std::string LoadShaderCode(std::string_view assetPath) {
+ auto gal = Gal::GetImplementation();
+ auto codeAsset = AssetManager::GetAssetByAssetName(std::string(assetPath));
+ auto codePtr = reinterpret_cast<const char*>(codeAsset->data.data());
+ return std::string(codePtr, codePtr + codeAsset->data.size());
+}
+
+std::shared_ptr<Gal::Shader> LoadVertexShader(std::string_view assetPath) {
+ auto gal = Gal::GetImplementation();
+ return gal->LoadVertexShader(LoadShaderCode(assetPath));
+}
+
+std::shared_ptr<Gal::Shader> LoadPixelShader(std::string_view assetPath) {
+ auto gal = Gal::GetImplementation();
+ return gal->LoadPixelShader(LoadShaderCode(assetPath));
+}
+
+TextureFbCopy::TextureFbCopy(
+ std::shared_ptr<Gal::Texture> inputTexture,
+ std::shared_ptr<Gal::Texture> outputTexture,
+ std::shared_ptr<Gal::Shader> copyShader) {
+
+ auto gal = Gal::GetImplementation();
+
+ auto fbConf = gal->CreateFramebufferConfig();
+ fbConf->SetTexture(0, outputTexture);
+
+ auto [outputW, outputH, outputD] = outputTexture->GetSize();
+
+ framebuffer = gal->BuildFramebuffer(fbConf);
+ framebuffer->SetViewport(0, 0, outputW, outputH);
+
+ auto fbPPC = gal->CreatePipelineConfig();
+ fbPPC->SetTarget(framebuffer);
+
+ fbPPC->AddStaticTexture("inputTexture", inputTexture);
+
+ fbPPC->SetVertexShader(LoadVertexShader("/altcraft/shaders/vert/quad"));
+ fbPPC->SetPixelShader(copyShader ? copyShader : LoadPixelShader("/altcraft/shaders/frag/copy"));
+ auto fbBufferBB = fbPPC->BindVertexBuffer({
+ {"pos", Gal::Type::Vec2},
+ {"uvPos", Gal::Type::Vec2}
+ });
+
+ pipeline = gal->BuildPipeline(fbPPC);
+
+ fbBuffer = gal->CreateBuffer();
+ 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
+ };
+ auto quadPtr = reinterpret_cast<const std::byte*>(quadVertices);
+ fbBuffer->SetData({ quadPtr, quadPtr + sizeof(quadVertices) });
+
+ pipelineInstance = pipeline->CreateInstance({
+ {fbBufferBB, fbBuffer}
+ });
+}
+
+TextureFbCopy::TextureFbCopy(
+ std::shared_ptr<Gal::Texture> inputTexture,
+ std::shared_ptr<Gal::Framebuffer> outputFb,
+ std::shared_ptr<Gal::Shader> copyShader) {
+
+ auto gal = Gal::GetImplementation();
+
+ framebuffer = outputFb;
+
+ auto fbPPC = gal->CreatePipelineConfig();
+ fbPPC->SetTarget(framebuffer);
+
+ fbPPC->AddStaticTexture("inputTexture", inputTexture);
+
+ fbPPC->SetVertexShader(LoadVertexShader("/altcraft/shaders/vert/quad"));
+ fbPPC->SetPixelShader(copyShader ? copyShader : LoadPixelShader("/altcraft/shaders/frag/copy"));
+ auto fbBufferBB = fbPPC->BindVertexBuffer({
+ {"pos", Gal::Type::Vec2},
+ {"uvPos", Gal::Type::Vec2}
+ });
+
+ pipeline = gal->BuildPipeline(fbPPC);
+
+ fbBuffer = gal->CreateBuffer();
+ 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
+ };
+ auto quadPtr = reinterpret_cast<const std::byte*>(quadVertices);
+ fbBuffer->SetData({ quadPtr, quadPtr + sizeof(quadVertices) });
+
+ pipelineInstance = pipeline->CreateInstance({
+ {fbBufferBB, fbBuffer}
+ });
+}
+
+PostProcess::PostProcess(
+ std::shared_ptr<Gal::Shader> pixelShader,
+ std::vector<std::pair<std::string_view, std::shared_ptr<Gal::Texture>>> inputTextures,
+ std::vector<std::pair<std::string_view, Gal::Type>> inputParameters,
+ size_t width,
+ size_t height,
+ Gal::Format format,
+ Gal::Filtering filtering) {
+ auto gal = Gal::GetImplementation();
+
+ auto texConf = gal->CreateTexture2DConfig(width, height, format);
+ texConf->SetMinFilter(filtering);
+ texConf->SetMaxFilter(filtering);
+
+ result = gal->BuildTexture(texConf);
+
+ auto fbConf = gal->CreateFramebufferConfig();
+ fbConf->SetTexture(0, result);
+
+ framebuffer = gal->BuildFramebuffer(fbConf);
+ framebuffer->SetViewport(0, 0, width, height);
+
+ auto fbPPC = gal->CreatePipelineConfig();
+ fbPPC->SetTarget(framebuffer);
+ for (auto&& [name, texture] : inputTextures) {
+ fbPPC->AddStaticTexture(name, texture);
+ }
+ for (auto&& [name, type] : inputParameters) {
+ fbPPC->AddShaderParameter(name, type);
+ }
+ fbPPC->SetVertexShader(LoadVertexShader("/altcraft/shaders/vert/quad"));
+ fbPPC->SetPixelShader(pixelShader);
+ auto fbBufferBB = fbPPC->BindVertexBuffer({
+ {"pos", Gal::Type::Vec2},
+ {"uvPos", Gal::Type::Vec2}
+ });
+
+ pipeline = gal->BuildPipeline(fbPPC);
+
+ fbBuffer = gal->CreateBuffer();
+ 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
+ };
+ auto quadPtr = reinterpret_cast<const std::byte*>(quadVertices);
+ fbBuffer->SetData({ quadPtr, quadPtr + sizeof(quadVertices) });
+
+ pipelineInstance = pipeline->CreateInstance({
+ {fbBufferBB, fbBuffer}
+ });
+}
+
+Gbuffer::Gbuffer(size_t geomW, size_t geomH, size_t lightW, size_t lightH, int ssaoSamples, size_t ssaoW, size_t ssaoH) {
+ auto gal = Gal::GetImplementation();
+
+ auto colorConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::R8G8B8);
+ colorConf->SetMinFilter(Gal::Filtering::Bilinear);
+ colorConf->SetMaxFilter(Gal::Filtering::Bilinear);
+ color = gal->BuildTexture(colorConf);
+
+ auto normalConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::R8G8B8SN);
+ normalConf->SetMinFilter(Gal::Filtering::Bilinear);
+ normalConf->SetMaxFilter(Gal::Filtering::Bilinear);
+ normal = gal->BuildTexture(normalConf);
+
+ auto lightConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::R8G8B8);
+ lightConf->SetMinFilter(Gal::Filtering::Bilinear);
+ lightConf->SetMaxFilter(Gal::Filtering::Bilinear);
+ light = gal->BuildTexture(lightConf);
+
+ auto dsConf = gal->CreateTexture2DConfig(geomW, geomH, Gal::Format::D24S8);
+ dsConf->SetMinFilter(Gal::Filtering::Bilinear);
+ dsConf->SetMaxFilter(Gal::Filtering::Bilinear);
+ depthStencil = gal->BuildTexture(dsConf);
+
+ auto geomFbConf = gal->CreateFramebufferConfig();
+ geomFbConf->SetDepthStencil(depthStencil);
+ geomFbConf->SetTexture(0, color);
+ geomFbConf->SetTexture(1, normal);
+ geomFbConf->SetTexture(2, light);
+
+ geomFramebuffer = gal->BuildFramebuffer(geomFbConf);
+ geomFramebuffer->SetViewport(0, 0, geomW, geomH);
+
+ if (ssaoSamples > 0) {
+ auto noiseConf = gal->CreateTexture2DConfig(4, 4, Gal::Format::R8G8B8SN);
+ noiseConf->SetWrapping(Gal::Wrapping::Repeat);
+ noiseConf->SetMinFilter(Gal::Filtering::Bilinear);
+ noiseConf->SetMaxFilter(Gal::Filtering::Bilinear);
+ ssaoNoise = gal->BuildTexture(noiseConf);
+
+ std::mt19937 rng(std::chrono::steady_clock::now().time_since_epoch().count());
+ std::uniform_real_distribution<> dis(-1.0f, 1.0f);
+ std::vector<glm::i8vec3> noiseTexData(16);
+ for (auto& vec : noiseTexData) {
+ vec.x = static_cast<int8_t>(dis(rng) * 128.0f);
+ vec.y = static_cast<int8_t>(dis(rng) * 128.0f);
+ vec.z = 0.0f;
+ }
+ ssaoNoise->SetData({ reinterpret_cast<std::byte*>(noiseTexData.data()), reinterpret_cast<std::byte*>(noiseTexData.data() + noiseTexData.size()) });
+
+ std::vector<std::pair<std::string_view, std::shared_ptr<Gal::Texture>>> ssaoTextures = {
+ {"normal", normal},
+ {"light", light},
+ {"depthStencil", depthStencil},
+ {"ssaoNoise", ssaoNoise},
+ };
+
+ std::vector<std::pair<std::string_view, Gal::Type>> ssaoParameters = {
+ {"ssaoSamples", Gal::Type::Int32},
+ };
+
+ ssaoPass = std::make_unique<PostProcess>(LoadPixelShader("/altcraft/shaders/frag/ssao"),
+ ssaoTextures,
+ ssaoParameters,
+ ssaoW,
+ ssaoH,
+ Gal::Format::R8,
+ Gal::Filtering::Bilinear);
+
+ ssaoPass->SetShaderParameter("ssaoSamples", ssaoSamples);
+
+ std::vector<std::pair<std::string_view, std::shared_ptr<Gal::Texture>>> ssaoBlurTextures = {
+ {"blurInput", ssaoPass->GetResultTexture()},
+ };
+
+ std::vector<std::pair<std::string_view, Gal::Type>> ssaoBlurParameters = {
+ {"blurScale", Gal::Type::Int32},
+ };
+
+ ssaoBlurPass = std::make_unique<PostProcess>(LoadPixelShader("/altcraft/shaders/frag/blur"),
+ ssaoBlurTextures,
+ ssaoBlurParameters,
+ ssaoW,
+ ssaoH,
+ Gal::Format::R8,
+ Gal::Filtering::Bilinear);
+
+ ssaoBlurPass->SetShaderParameter("blurScale", 2);
+ }
+
+ std::vector<std::pair<std::string_view, Gal::Type>> lightingParameters = {
+ {"renderBuff", Gal::Type::Int32},
+ {"applySsao", Gal::Type::Int32},
+ };
+
+ std::vector<std::pair<std::string_view, std::shared_ptr<Gal::Texture>>> lightingTextures = {
+ {"depthStencil", depthStencil},
+ {"color", color},
+ {"normal", normal},
+ {"light", light},
+ };
+
+ if (ssaoSamples > 0)
+ lightingTextures.emplace_back("ssao", ssaoBlurPass->GetResultTexture());
+
+ lightingPass = std::make_unique<PostProcess>(LoadPixelShader("/altcraft/shaders/frag/light"),
+ lightingTextures,
+ lightingParameters,
+ lightW,
+ lightH,
+ Gal::Format::R8G8B8,
+ Gal::Filtering::Bilinear);
+
+ lightingPass->SetShaderParameter("applySsao", ssaoSamples);
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-14 04:09:55 +0200