Kearwood Gilbert
3e60fdd48a
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166 lines
6.9 KiB
C++
166 lines
6.9 KiB
C++
//
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// KRRenderGraphForward.cpp
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// Kraken Engine
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//
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// Copyright 2026 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#include "KRRenderGraphForward.h"
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#include "KRRenderPass.h"
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#include "KRSurface.h"
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#include "KRDevice.h"
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KRRenderGraphForward::KRRenderGraphForward(KRContext& context)
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: KRRenderGraph(context)
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{
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}
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KRRenderGraphForward::~KRRenderGraphForward()
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{
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}
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KrResult KRRenderGraphForward::initialize(KRSurface &surface)
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{
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VkFormat depthImageFormat = VK_FORMAT_UNDEFINED;
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KrResult res = KR_SUCCESS;
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res = surface.getDevice()->selectDepthFormat(depthImageFormat);
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if (res != KR_SUCCESS) {
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return res;
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}
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// ----- Configuration -----
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int shadow_buffer_count = 0;
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// -------------------------
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int attachment_compositeDepth = addAttachment("Composite Depth", depthImageFormat);
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int attachment_compositeColor = addAttachment("Composite Color", surface.getSurfaceFormat());
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int attachment_lightAccumulation = addAttachment("Light Accumulation", VK_FORMAT_B8G8R8A8_UINT);
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int attachment_gbuffer = addAttachment("GBuffer", VK_FORMAT_B8G8R8A8_UINT);
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int attachment_shadow_cascades[3];
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attachment_shadow_cascades[0] = addAttachment("Shadow Cascade 0", VK_FORMAT_D32_SFLOAT);
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attachment_shadow_cascades[1] = addAttachment("Shadow Cascade 1", VK_FORMAT_D32_SFLOAT);
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attachment_shadow_cascades[2] = addAttachment("Shadow Cascade 2", VK_FORMAT_D32_SFLOAT);
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RenderPassInfo info{};
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info.finalPass = false;
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info.type = RenderPassType::RENDER_PASS_PRESTREAM;
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#if KRENGINE_DEBUG_GPU_LABELS
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strncpy(info.debugLabel, "PreStream", KRENGINE_DEBUG_GPU_LABEL_MAX_LEN);
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#endif
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addRenderPass(*surface.getDevice(), info);
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for (int shadow_index = 0; shadow_index < shadow_buffer_count; shadow_index++) {
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info.depthAttachment.id = attachment_shadow_cascades[shadow_index];
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info.depthAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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info.depthAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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info.depthAttachment.clearVaue.depthStencil.depth = 1.0f;
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info.depthAttachment.clearVaue.depthStencil.stencil = 0;
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info.type = RenderPassType::RENDER_PASS_SHADOWMAP;
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#if KRENGINE_DEBUG_GPU_LABELS
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snprintf(info.debugLabel, KRENGINE_DEBUG_GPU_LABEL_MAX_LEN, "Shadow Map %i", shadow_index);
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#endif
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addRenderPass(*surface.getDevice(), info);
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}
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// ----====---- Opaque Geometry, Forward Rendering ----====----
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info.depthAttachment.id = attachment_compositeDepth;
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info.depthAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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info.depthAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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info.depthAttachment.clearVaue.depthStencil.depth = 1.0f;
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info.depthAttachment.clearVaue.depthStencil.stencil = 0;
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info.colorAttachments[0].id = attachment_compositeColor;
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info.colorAttachments[0].clearVaue.color.float32[0] = 0.0f;
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info.colorAttachments[0].clearVaue.color.float32[1] = 0.0f;
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info.colorAttachments[0].clearVaue.color.float32[2] = 0.0f;
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info.colorAttachments[0].clearVaue.color.float32[3] = 0.0f;
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info.colorAttachments[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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info.colorAttachments[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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info.type = RenderPassType::RENDER_PASS_FORWARD_OPAQUE;
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#if KRENGINE_DEBUG_GPU_LABELS
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strncpy(info.debugLabel, "Forward Opaque", KRENGINE_DEBUG_GPU_LABEL_MAX_LEN);
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#endif
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addRenderPass(*surface.getDevice(), info);
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// ----====---- Transparent Geometry, Forward Rendering ----====----
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info.depthAttachment.id = attachment_compositeDepth;
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info.depthAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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info.depthAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
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info.depthAttachment.clearVaue.depthStencil.depth = 1.0f;
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info.depthAttachment.clearVaue.depthStencil.stencil = 0;
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info.colorAttachments[0].id = attachment_compositeColor;
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info.colorAttachments[0].clearVaue.color.float32[0] = 0.0f;
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info.colorAttachments[0].clearVaue.color.float32[1] = 0.0f;
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info.colorAttachments[0].clearVaue.color.float32[2] = 0.0f;
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info.colorAttachments[0].clearVaue.color.float32[3] = 0.0f;
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info.colorAttachments[0].loadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
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info.colorAttachments[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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info.type = RenderPassType::RENDER_PASS_FORWARD_TRANSPARENT;
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#if KRENGINE_DEBUG_GPU_LABELS
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strncpy(info.debugLabel, "Forward Transparent", KRENGINE_DEBUG_GPU_LABEL_MAX_LEN);
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#endif
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addRenderPass(*surface.getDevice(), info);
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info.type = RenderPassType::RENDER_PASS_PARTICLE_OCCLUSION;
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#if KRENGINE_DEBUG_GPU_LABELS
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strncpy(info.debugLabel, "Particle Occlusion", KRENGINE_DEBUG_GPU_LABEL_MAX_LEN);
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#endif
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addRenderPass(*surface.getDevice(), info);
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info.type = RenderPassType::RENDER_PASS_ADDITIVE_PARTICLES;
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#if KRENGINE_DEBUG_GPU_LABELS
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strncpy(info.debugLabel, "Additive Particles", KRENGINE_DEBUG_GPU_LABEL_MAX_LEN);
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#endif
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addRenderPass(*surface.getDevice(), info);
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info.type = RenderPassType::RENDER_PASS_VOLUMETRIC_EFFECTS_ADDITIVE;
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#if KRENGINE_DEBUG_GPU_LABELS
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strncpy(info.debugLabel, "Additive Volumetric Effects", KRENGINE_DEBUG_GPU_LABEL_MAX_LEN);
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#endif
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addRenderPass(*surface.getDevice(), info);
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info.type = RenderPassType::RENDER_PASS_DEBUG_OVERLAYS;
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#if KRENGINE_DEBUG_GPU_LABELS
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strncpy(info.debugLabel, "Debug Overlays", KRENGINE_DEBUG_GPU_LABEL_MAX_LEN);
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#endif
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addRenderPass(*surface.getDevice(), info);
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info.finalPass = true;
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info.type = RenderPassType::RENDER_PASS_POST_COMPOSITE;
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#if KRENGINE_DEBUG_GPU_LABELS
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strncpy(info.debugLabel, "Post Composite", KRENGINE_DEBUG_GPU_LABEL_MAX_LEN);
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#endif
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addRenderPass(*surface.getDevice(), info);
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return KR_SUCCESS;
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}
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