initial commit

2026-07-17 15:30:29 +01:00
commit 7e8ec5a825
416 changed files with 40308 additions and 0 deletions
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+#include "HydraForwardPipeline.h"
+#include "HydraRenderStage.h"
+#include "../engine/HydraEngine.h"
+#include "../buffer/HydraBufferManager.h"
+#include "PerFrameUBO.hpp"
+#include "../camera/HydraCamera.h"
+#include "../renderer/HydraRenderer.h"
+#include "../ecs/HydraECS.h"
+#include "../ecs/systems/HydraRenderSystem.h"
+#include "../mesh/StandardVertex.h"
+
+void HydraForwardPipeline::Initialise()
+{
+    _EnableVertexAttributes();
+    HydraRenderStage* render_stage = new HydraRenderStage();
+    std::string shader_path = std::string(shader_base);
+    HydraBufferManager* buffer_manager = GetEngine()->BufferManager();
+
+    HydraID pos_buffer_id = buffer_manager->FindBuffer("PositionsBuffer");
+    HydraID mat_buffer_id = buffer_manager->FindBuffer("MaterialBuffer");
+    HydraID tex_buffer_id = buffer_manager->FindBuffer("TextureBuffer");
+
+    HydraShaderBinding shader_binding = {};
+    
+    shader_binding.block_name.push_back("PositionsBuffer");
+    shader_binding.binding_point.push_back(1);
+    shader_binding.buffer_id.push_back(pos_buffer_id);
+
+    shader_binding.block_name.push_back("MaterialBuffer");
+    shader_binding.binding_point.push_back(2);
+    shader_binding.buffer_id.push_back(mat_buffer_id);
+
+    shader_binding.block_name.push_back("TextureBuffer");
+    shader_binding.binding_point.push_back(3);
+    shader_binding.buffer_id.push_back(tex_buffer_id);
+    std::vector<uint32_t> textures;
+    std::vector<uint32_t> rb_attachments;
+    
+    
+    
+    render_stage->Initialise(shader_path + "forward_shader.vert", shader_path + "forward_shader.frag", shader_binding, 0, textures, true, HYDRA_RENDERABLE_TYPE::HYDRA_COLOUR);
+    m_render_stages.push_back(render_stage);
+
+
+    m_per_frame_ubo = buffer_manager->CreateGPUBuffer("PerFrameUBO", 
+        sizeof(PerFrameUBO), 0, HYDRA_BUFFER_TYPE::HYDRA_UBO_BUFFER);
+    
+}
+
+void HydraForwardPipeline::Shutdown()
+{
+    for(uint32_t rs_idx =0; rs_idx <m_render_stages.size(); rs_idx++)
+    {
+        m_render_stages[rs_idx]->ShutDown();
+        delete m_render_stages[rs_idx];
+    }
+}
+
+void HydraForwardPipeline::Render()
+{
+    _UpdateUBO();
+    
+    HydraECS* ecs = GetEngine()->ECS();
+    std::shared_ptr<HydraRenderSystem> render_system = ecs->GetSystem<HydraRenderSystem>();
+    
+    GetEngine()->Renderer()->BeginFrame();
+    
+    for(uint32_t rs_idx = 0; rs_idx <m_render_stages.size(); rs_idx++)
+    {
+        m_render_stages[rs_idx]->Render(render_system->Entities);
+    }
+    GetEngine()->Renderer()->EndFrame();
+}
+
+void HydraForwardPipeline::_UpdateUBO()
+{
+    HydraCamera* camera = GetEngine()->Camera();
+    PerFrameUBO ubo = {};
+
+    ubo.view = camera->GetView();
+    ubo.proj = camera->GetProjection();
+
+    HydraBufferManager* buffer_manager = GetEngine()->BufferManager();
+    buffer_manager->UpdateWholeBuffer(m_per_frame_ubo, &ubo);
+    glBindBuffer(GL_UNIFORM_BUFFER, m_per_frame_ubo);
+}
+
+void HydraForwardPipeline::_EnableVertexAttributes()
+{
+
+        //already on the render thread so dont neet another job
+    // position
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(StandardVertex), (void *)0);
+    glEnableVertexAttribArray(0);
+    // texcoord01
+    glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(StandardVertex), (void *)(3 * sizeof(float)));
+    glEnableVertexAttribArray(1);
+    // chunkID
+    glVertexAttribIPointer(2, 3, GL_UNSIGNED_INT, sizeof(StandardVertex), (void *)(5 * sizeof(float)));
+    glEnableVertexAttribArray(2);
+}