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vulkan triangle

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This commit is contained in:
Jorijn van der Graaf 2026-01-29 19:18:47 +01:00
commit 96b5d1a299
8 changed files with 170 additions and 48 deletions
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12
examples/VulkanTriangle/closesthit.glsl
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@ -0,0 +1,12 @@
#version 460
#extension GL_EXT_ray_tracing : enable
#extension GL_EXT_nonuniform_qualifier : enable
layout(location = 0) rayPayloadInEXT vec3 hitValue;
hitAttributeEXT vec2 attribs;
void main()
{
const vec3 barycentricCoords = vec3(1.0f - attribs.x - attribs.y, attribs.x, attribs.y);
hitValue = barycentricCoords;
}

45
examples/VulkanTriangle/main.cpp
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@ -5,9 +5,12 @@ using namespace Crafter;
import std;
typedef VulkanShader<"raygen.spv", "main", VK_SHADER_STAGE_RAYGEN_BIT_KHR, 2, {{{VK_DESCRIPTOR_TYPE_ACCELERATION_STRUCTURE_KHR, 0}, {VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, 1}}}> Raygenspv;
typedef VulkanShader<"closesthit.spv", "main", VK_SHADER_STAGE_CLOSEST_HIT_BIT_KHR, 0, {{}}> Closesthitspv;
typedef VulkanShader<"miss.spv", "main", VK_SHADER_STAGE_MISS_BIT_KHR, 0, {{}}> Misspv;
int main() {
std::this_thread::sleep_for(std::chrono::milliseconds(500));
/*
This sets up all necessary things and creates the vulkan device.
This must be called before any vulkan related things.
@ -15,9 +18,11 @@ int main() {
*/
VulkanDevice::CreateDevice();
Raygenspv::CreateShader();
DescriptorLayoutVulkan<Raygenspv>::Init();
PipelineRTVulkan<Raygenspv, Raygenspv>::Init();
DescriptorPool<1, Raygenspv> pool;
Closesthitspv::CreateShader();
Misspv::CreateShader();
DescriptorLayoutVulkan<Raygenspv, Closesthitspv, Misspv>::Init();
PipelineRTVulkan<Raygenspv, Closesthitspv, Misspv, Raygenspv, Closesthitspv, Misspv>::Init();
DescriptorPool<1, Raygenspv, Closesthitspv, Misspv> pool;
pool.setsCount = 1;
pool.BuildPool(0);
@ -30,8 +35,8 @@ int main() {
VkCommandBuffer cmd = window.StartInit();
Mesh triangleMesh;
std::array<Vertex, 3> verts {{{-0.1, 0, 0}, {0, 0.1, 0}, {0.1, 0, 0}}};
std::array<std::uint32_t, 3> index {{0,1,2}};
std::array<Vertex, 3> verts {{{-150, -150, 100}, {0, 150, 100}, {150, -150, 100}}};
std::array<std::uint32_t, 3> index {{2,1,0}};
triangleMesh.Build(verts, index, cmd);
RenderingElement3DVulkan::elements.emplace_back(triangleMesh);
RenderingElement3DVulkan::BuildTLAS(cmd);
@ -41,8 +46,6 @@ int main() {
.imageLayout = VK_IMAGE_LAYOUT_GENERAL
};
std::cout << pool.sets.size() << std::endl;
VkWriteDescriptorSetAccelerationStructureKHR writeDescriptorSetAccelerationStructure {
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET_ACCELERATION_STRUCTURE_KHR,
.accelerationStructureCount = 1,
@ -51,21 +54,22 @@ int main() {
VkWriteDescriptorSet write[2] = {
{
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.pNext = &writeDescriptorSetAccelerationStructure,
.dstSet = pool.sets[0],
.dstSet = pool.sets[0],
.dstBinding = 0,
.dstArrayElement = 0,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_ACCELERATION_STRUCTURE_KHR,
.pBufferInfo = &RenderingElement3DVulkan::tlasBuffer.descriptor
.descriptorType = VK_DESCRIPTOR_TYPE_ACCELERATION_STRUCTURE_KHR,
},
{
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.dstSet = pool.sets[0],
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.dstSet = pool.sets[0],
.dstBinding = 1,
.dstArrayElement = 0,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.pImageInfo = &imageInfo
.descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.pImageInfo = &imageInfo
}
};
vkUpdateDescriptorSets(VulkanDevice::device, 2, write, 0, nullptr);
@ -77,9 +81,18 @@ int main() {
*/
window.FinishInit();
window.SetPipelineRT<Raygenspv, Raygenspv>();
window.SetPipelineRT<Raygenspv, Closesthitspv, Misspv, Raygenspv, Closesthitspv, Misspv>();
window.descriptorsRt = pool.sets;
window.Render();
window.Render();
window.Render();
window.Render();
// window.Render();
// window.Render();
// window.Render();
// window.Render();
// window.Render();
// window.Render();
window.StartSync();
}

9
examples/VulkanTriangle/miss.glsl
View file

@ -0,0 +1,9 @@
#version 460
#extension GL_EXT_ray_tracing : enable
layout(location = 0) rayPayloadInEXT vec3 hitValue;
void main()
{
hitValue = vec3(1, 1, 1);
}

12
examples/VulkanTriangle/project.json
View file

@ -13,7 +13,17 @@
"shaders": [
{
"path":"raygen.glsl",
"type":6,
"type": 6,
"entrypoint":"main"
},
{
"path":"closesthit.glsl",
"type": 9,
"entrypoint":"main"
},
{
"path":"miss.glsl",
"type": 10,
"entrypoint":"main"
}
]

41
examples/VulkanTriangle/raygen.glsl
View file

@ -3,10 +3,45 @@
#extension GL_EXT_shader_image_load_formatted : enable
layout(binding = 0, set = 0) uniform accelerationStructureEXT topLevelAS;
layout(binding = 1, set = 0) uniform image2D image;
layout(binding = 1, set = 0, rgba32f) uniform image2D image;
layout(location = 0) rayPayloadEXT vec3 hitValue;
void main() {
imageStore(image, ivec2(gl_LaunchIDEXT.xy), vec4(1,1,1, 0.0));
void main()
{
// Pixel coordinates
uvec2 pixel = gl_LaunchIDEXT.xy;
uvec2 resolution = gl_LaunchSizeEXT.xy;
// Normalized coordinates in range [-1, 1]
vec2 uv = (vec2(pixel) + 0.5) / vec2(resolution);
vec2 ndc = uv * 2.0 - 1.0;
// Camera parameters
vec3 origin = vec3(0.0, 0.0, -300.0);
float aspect = float(resolution.x) / float(resolution.y);
float fov = radians(60.0);
float tanHalfFov = tan(fov * 0.5);
// Simple pinhole camera facing +Z
vec3 direction = normalize(vec3(
ndc.x * aspect * tanHalfFov,
-ndc.y * tanHalfFov,
1.0
));
traceRayEXT(
topLevelAS,
gl_RayFlagsNoneEXT,
0xff,
0, 0, 0,
origin,
0.001,
direction,
10000.0,
0
);
imageStore(image, ivec2(pixel), vec4(hitValue, 1.0));
}

11
implementations/Crafter.Graphics-RenderingElement3DVulkan.cpp
View file

@ -43,9 +43,12 @@ RenderingElement3DVulkan::RenderingElement3DVulkan(Mesh& mesh) {
VkDeviceAddress blasDeviceAddr = VulkanDevice::vkGetAccelerationStructureDeviceAddressKHR(VulkanDevice::device, &addrInfo);
instance = {
.transform = identity,
.mask = 0xFF,
.accelerationStructureReference = blasDeviceAddr
.transform = identity,
.instanceCustomIndex = 0,
.mask = 0xFF,
.instanceShaderBindingTableRecordOffset = 0,
.flags = VK_GEOMETRY_INSTANCE_TRIANGLE_FACING_CULL_DISABLE_BIT_KHR | VK_GEOMETRY_INSTANCE_FORCE_OPAQUE_BIT_KHR,
.accelerationStructureReference = blasDeviceAddr
};
}
@ -56,6 +59,8 @@ void RenderingElement3DVulkan::BuildTLAS(VkCommandBuffer cmd) {
instanceBuffer.value[i] = elements[i].instance;
}
instanceBuffer.FlushDevice(cmd, VK_ACCESS_MEMORY_READ_BIT, VK_PIPELINE_STAGE_ACCELERATION_STRUCTURE_BUILD_BIT_KHR);
VkAccelerationStructureGeometryInstancesDataKHR instancesData = VkAccelerationStructureGeometryInstancesDataKHR {
.sType = VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_GEOMETRY_INSTANCES_DATA_KHR,
.arrayOfPointers = VK_FALSE,

72
interfaces/Crafter.Graphics-PipelineRTVulkan.cppm
View file

@ -30,7 +30,7 @@ import :VulkanBuffer;
import :Types;
export namespace Crafter {
template <typename Raygen, typename... Shaders>
template <typename Raygen, typename ClosestHit, typename Miss, typename... Shaders>
class PipelineRTVulkan {
public:
inline static VkPipeline pipeline;
@ -51,7 +51,7 @@ export namespace Crafter {
VulkanDevice::CheckVkResult(vkCreatePipelineLayout(VulkanDevice::device, &pipelineLayoutInfo, nullptr, &pipelineLayout));
std::array<VkPipelineShaderStageCreateInfo, 1> shaderStages;
std::array<VkPipelineShaderStageCreateInfo, 3> shaderStages;
shaderStages[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStages[0].stage = Raygen::_stage;
@ -61,20 +61,56 @@ export namespace Crafter {
shaderStages[0].pSpecializationInfo = nullptr;
shaderStages[0].pNext = nullptr;
VkRayTracingShaderGroupCreateInfoKHR group {
.sType = VK_STRUCTURE_TYPE_RAY_TRACING_SHADER_GROUP_CREATE_INFO_KHR,
.generalShader = 0,
.closestHitShader = VK_SHADER_UNUSED_KHR,
.anyHitShader = VK_SHADER_UNUSED_KHR,
.intersectionShader = VK_SHADER_UNUSED_KHR
};
shaderStages[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStages[1].stage = Miss::_stage;
shaderStages[1].module = Miss::shader;
shaderStages[1].pName = Miss::_entrypoint.value;
shaderStages[1].flags = 0;
shaderStages[1].pSpecializationInfo = nullptr;
shaderStages[1].pNext = nullptr;
shaderStages[2].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStages[2].stage = ClosestHit::_stage;
shaderStages[2].module = ClosestHit::shader;
shaderStages[2].pName = ClosestHit::_entrypoint.value;
shaderStages[2].flags = 0;
shaderStages[2].pSpecializationInfo = nullptr;
shaderStages[2].pNext = nullptr;
std::array<VkRayTracingShaderGroupCreateInfoKHR, 3> groups {{
{
.sType = VK_STRUCTURE_TYPE_RAY_TRACING_SHADER_GROUP_CREATE_INFO_KHR,
.type = VK_RAY_TRACING_SHADER_GROUP_TYPE_GENERAL_KHR,
.generalShader = 0,
.closestHitShader = VK_SHADER_UNUSED_KHR,
.anyHitShader = VK_SHADER_UNUSED_KHR,
.intersectionShader = VK_SHADER_UNUSED_KHR
},
{
.sType = VK_STRUCTURE_TYPE_RAY_TRACING_SHADER_GROUP_CREATE_INFO_KHR,
.type = VK_RAY_TRACING_SHADER_GROUP_TYPE_GENERAL_KHR,
.generalShader = 1,
.closestHitShader = VK_SHADER_UNUSED_KHR,
.anyHitShader = VK_SHADER_UNUSED_KHR,
.intersectionShader = VK_SHADER_UNUSED_KHR
},
{
.sType = VK_STRUCTURE_TYPE_RAY_TRACING_SHADER_GROUP_CREATE_INFO_KHR,
.type = VK_RAY_TRACING_SHADER_GROUP_TYPE_TRIANGLES_HIT_GROUP_KHR,
.generalShader = VK_SHADER_UNUSED_KHR,
.closestHitShader = 2,
.anyHitShader = VK_SHADER_UNUSED_KHR,
.intersectionShader = VK_SHADER_UNUSED_KHR
}
}};
VkRayTracingPipelineCreateInfoKHR rtPipelineInfo{
.sType = VK_STRUCTURE_TYPE_RAY_TRACING_PIPELINE_CREATE_INFO_KHR,
.stageCount = static_cast<std::uint32_t>(shaderStages.size()),
.pStages = shaderStages.data(),
.groupCount = static_cast<std::uint32_t>(1),
.pGroups = &group,
.groupCount = static_cast<std::uint32_t>(groups.size()),
.pGroups = groups.data(),
.maxPipelineRayRecursionDepth = 1,
.layout = pipelineLayout
};
@ -110,13 +146,15 @@ export namespace Crafter {
raygenRegion.stride = raygenSize;
raygenRegion.size = raygenSize;
missRegion.deviceAddress = 0;
missRegion.stride = 0;
missRegion.size = 0;
std::memcpy(sbtBuffer.value + missOffset, shaderHandles.data() + 1 * handleSize, handleSize);
missRegion.deviceAddress = sbtBuffer.address + missOffset;
missRegion.stride = missSize;
missRegion.size = missSize;
hitRegion.deviceAddress = 0;
hitRegion.stride = 0;
hitRegion.size = 0;
std::memcpy(sbtBuffer.value + hitOffset, shaderHandles.data() + 2 * handleSize, handleSize);
hitRegion.deviceAddress = sbtBuffer.address + hitOffset;
hitRegion.stride = hitSize;
hitRegion.size = hitSize;
callableRegion.deviceAddress = 0;
callableRegion.stride = 0;

14
interfaces/Crafter.Graphics-Window.cppm
View file

@ -311,14 +311,14 @@ export namespace Crafter {
VkCommandBuffer StartInit();
void FinishInit();
template <typename Raygen, typename... Shaders>
template <typename Raygen, typename Closesthit, typename Miss, typename... Shaders>
void SetPipelineRT() {
rtPipeline = PipelineRTVulkan<Raygen, Shaders...>::pipeline;
rtPipelineLayout = PipelineRTVulkan<Raygen, Shaders...>::pipelineLayout;
raygenRegion = PipelineRTVulkan<Raygen, Shaders...>::raygenRegion;
missRegion = PipelineRTVulkan<Raygen, Shaders...>::missRegion;
hitRegion = PipelineRTVulkan<Raygen, Shaders...>::hitRegion;
callableRegion = PipelineRTVulkan<Raygen, Shaders...>::callableRegion;
rtPipeline = PipelineRTVulkan<Raygen, Closesthit, Miss, Shaders...>::pipeline;
rtPipelineLayout = PipelineRTVulkan<Raygen, Closesthit, Miss, Shaders...>::pipelineLayout;
raygenRegion = PipelineRTVulkan<Raygen, Closesthit, Miss, Shaders...>::raygenRegion;
missRegion = PipelineRTVulkan<Raygen, Closesthit, Miss, Shaders...>::missRegion;
hitRegion = PipelineRTVulkan<Raygen, Closesthit, Miss, Shaders...>::hitRegion;
callableRegion = PipelineRTVulkan<Raygen, Closesthit, Miss, Shaders...>::callableRegion;
}
inline static wl_compositor* compositor = nullptr;
static void wl_surface_frame_done(void *data, wl_callback *cb, uint32_t time);