Updated call sites to no longer pass clear color to KRRenderPass::Begin(), as KRRenderPass now retains the clear color after initialization.

KRRenderPass now has configurable stencil clear, load, and store operations.

kraken/KRCamera.cpp

@@ -197,7 +197,7 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& compositeS
 
     // Start render pass
     KRRenderPass& deferredGBufferPass = compositeSurface.getDeferredGBufferPass();
-    deferredGBufferPass.begin(commandBuffer, compositeSurface, Vector4::Zero());
+    deferredGBufferPass.begin(commandBuffer, compositeSurface);
 
     // Render the geometry
     scene.render(commandBuffer, compositeSurface, this, m_viewport.getVisibleBounds(), m_viewport, KRNode::RENDER_PASS_DEFERRED_GBUFFER, false);
@@ -234,7 +234,7 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& compositeS
 
     // Start render pass
     KRRenderPass& deferredOpaquePass = compositeSurface.getDeferredOpaquePass();
-    deferredOpaquePass.begin(commandBuffer, compositeSurface, Vector4::Create(0.0f, 0.0f, 0.0f, 1.0f));
+    deferredOpaquePass.begin(commandBuffer, compositeSurface);
 
     // Set source to buffers from pass 2
     m_pContext->getTextureManager()->selectTexture(0 /*GL_TEXTURE_2D*/, 6, lightAccumulationTexture);
@@ -253,7 +253,7 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& compositeS
 
     // Start render pass
     KRRenderPass& forwardOpaquePass = compositeSurface.getForwardOpaquePass();
-    forwardOpaquePass.begin(commandBuffer, compositeSurface, Vector4::Create(0.0f, 0.0f, 0.0f, 1.0f));
+    forwardOpaquePass.begin(commandBuffer, compositeSurface);
 
     // Render the geometry
     scene.render(commandBuffer, compositeSurface, this, m_viewport.getVisibleBounds(), m_viewport, KRNode::RENDER_PASS_FORWARD_OPAQUE, false);
@@ -414,7 +414,7 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& compositeS
   GL_PUSH_GROUP_MARKER("Post Processing");
 
   KRRenderPass& postCompositePass = compositeSurface.getPostCompositePass();
-  postCompositePass.begin(commandBuffer, compositeSurface, Vector4::Create(0.0f, 0.0f, 0.0f, 1.0f));
+  postCompositePass.begin(commandBuffer, compositeSurface);
   
   renderPost(commandBuffer, compositeSurface);
 
@@ -774,7 +774,7 @@ void KRCamera::renderDebug(VkCommandBuffer& commandBuffer, KRSurface& surface)
     m_debug_text_vbo_data.load(commandBuffer);
     
     KRRenderPass& debugPass = surface.getDebugPass();
-    debugPass.begin(commandBuffer, surface, Vector4::Create(0.0f, 0.0f, 0.0f, 1.0f));
+    debugPass.begin(commandBuffer, surface);
 
     KRTexture* fontTexture = m_pContext->getTextureManager()->getTexture("font");
     fontTexture->resetPoolExpiry(0.0f, KRTexture::TEXTURE_USAGE_UI);

kraken/KRRenderPass.cpp

@@ -75,8 +75,8 @@ void KRRenderPass::create(KRDevice& device, VkFormat swapChainImageFormat, VkFor
   depthAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
   depthAttachment.loadOp = info.clearDepth ? VK_ATTACHMENT_LOAD_OP_CLEAR : VK_ATTACHMENT_LOAD_OP_LOAD;
   depthAttachment.storeOp = info.keepDepth ? VK_ATTACHMENT_STORE_OP_STORE : VK_ATTACHMENT_STORE_OP_DONT_CARE;
-  depthAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+  depthAttachment.stencilLoadOp = info.clearStencil ? VK_ATTACHMENT_LOAD_OP_CLEAR : VK_ATTACHMENT_LOAD_OP_LOAD;
-  depthAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+  depthAttachment.stencilStoreOp = info.keepStencil ? VK_ATTACHMENT_STORE_OP_STORE : VK_ATTACHMENT_STORE_OP_DONT_CARE;
   depthAttachment.initialLayout = info.clearDepth ? VK_IMAGE_LAYOUT_UNDEFINED : VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
   depthAttachment.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
 
@@ -133,7 +133,8 @@ void KRRenderPass::begin(VkCommandBuffer& commandBuffer, KRSurface& surface)
   clearValues[0].color.float32[1] = m_info.clearColorValue[1];
   clearValues[0].color.float32[2] = m_info.clearColorValue[2];
   clearValues[0].color.float32[3] = m_info.clearColorValue[3];
-  clearValues[1].depthStencil = { 1.0f, 0 };
+  clearValues[1].depthStencil.depth = m_info.clearDepthValue;
+  clearValues[1].depthStencil.stencil = m_info.clearStencilValue;
 
   VkRenderPassBeginInfo renderPassInfo{};
   renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;

kraken/KRRenderPass.h

@@ -48,15 +48,21 @@ public:
     bool keepColor;
     bool clearDepth;
     bool keepDepth;
+    bool clearStencil;
+    bool keepStencil;
     bool finalPass;
+    hydra::Vector4 clearColorValue;
+    float clearDepthValue;
+    uint32_t clearStencilValue;
   };
 
   void create(KRDevice& device, VkFormat swapChainImageFormat, VkFormat depthImageFormat, const RenderPassInfo& info);
   void destroy(KRDevice& device);
 
-  void begin(VkCommandBuffer& commandBuffer, KRSurface& surface, const hydra::Vector4& clearColor);
+  void begin(VkCommandBuffer& commandBuffer, KRSurface& surface);
   void end(VkCommandBuffer& commandBuffer);
 
   // private:
   VkRenderPass m_renderPass;
+  RenderPassInfo m_info;
 };

kraken/KRSurface.cpp

@@ -201,10 +201,16 @@ KrResult KRSurface::createSwapChain()
   KRRenderPass::RenderPassInfo info{};
   info.clearColor = true;
   info.keepColor = true;
-  info.clearDepth = true;
-  info.keepDepth = false;
-  info.finalPass = false;
   info.clearColorValue = Vector4::Zero();
+
+  info.clearDepth = true;
+  info.keepDepth = true;
+  info.clearDepthValue = 1.0f;
+  
+  info.clearStencil = true;
+  info.keepStencil = true;
+  info.clearStencilValue = 0;
+  info.finalPass = false;
   m_forwardOpaquePass->create(*device, selectedSurfaceFormat.format, depthImageFormat, info);
 
   info.clearColor = true;