-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy pathgvk-getting-started-05-gui.cpp
665 lines (600 loc) · 36 KB
/
gvk-getting-started-05-gui.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
/*******************************************************************************
MIT License
Copyright (c) Intel Corporation
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*******************************************************************************/
#include "gvk-sample-utilities.hpp"
#include <array>
#include <cassert>
#include <iostream>
#include <vector>
VkResult create_mesh(
const gvk::Context& context,
const glm::vec3& dimensions,
const glm::vec4& topColor,
const glm::vec4& bottomColor,
gvk::Mesh* pMesh
)
{
float w = dimensions[0] * 0.5f;
float h = dimensions[1] * 0.5f;
float d = dimensions[2] * 0.5f;
std::array<VertexPositionTexcoordColor, 24> vertices {
// Top
VertexPositionTexcoordColor {{ -w, h, -d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ w, h, -d }, { 1, 0 }, { topColor }},
VertexPositionTexcoordColor {{ w, h, d }, { 1, 1 }, { topColor }},
VertexPositionTexcoordColor {{ -w, h, d }, { 0, 1 }, { topColor }},
// Left
VertexPositionTexcoordColor {{ -w, h, -d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ -w, h, d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ -w, -h, d }, { 0, 0 }, { bottomColor }},
VertexPositionTexcoordColor {{ -w, -h, -d }, { 0, 0 }, { bottomColor }},
// Front
VertexPositionTexcoordColor {{ -w, h, d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ w, h, d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ w, -h, d }, { 0, 0 }, { bottomColor }},
VertexPositionTexcoordColor {{ -w, -h, d }, { 0, 0 }, { bottomColor }},
// Right
VertexPositionTexcoordColor {{ w, h, d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ w, h, -d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ w, -h, -d }, { 0, 0 }, { bottomColor}},
VertexPositionTexcoordColor {{ w, -h, d }, { 0, 0 }, { bottomColor}},
// Back
VertexPositionTexcoordColor {{ w, h, -d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ -w, h, -d }, { 0, 0 }, { topColor }},
VertexPositionTexcoordColor {{ -w, -h, -d }, { 0, 0 }, { bottomColor }},
VertexPositionTexcoordColor {{ w, -h, -d }, { 0, 0 }, { bottomColor }},
// Bottom
VertexPositionTexcoordColor {{ -w, -h, d }, { 0, 0 }, { bottomColor }},
VertexPositionTexcoordColor {{ w, -h, d }, { 0, 0 }, { bottomColor }},
VertexPositionTexcoordColor {{ w, -h, -d }, { 0, 0 }, { bottomColor }},
VertexPositionTexcoordColor {{ -w, -h, -d }, { 0, 0 }, { bottomColor }},
};
size_t index_i = 0;
size_t vertex_i = 0;
constexpr size_t FaceCount = 6;
constexpr size_t IndicesPerFace = 6;
std::array<uint16_t, IndicesPerFace * FaceCount> indices;
for (size_t face_i = 0; face_i < FaceCount; ++face_i) {
indices[index_i++] = (uint16_t)(vertex_i + 0);
indices[index_i++] = (uint16_t)(vertex_i + 1);
indices[index_i++] = (uint16_t)(vertex_i + 2);
indices[index_i++] = (uint16_t)(vertex_i + 2);
indices[index_i++] = (uint16_t)(vertex_i + 3);
indices[index_i++] = (uint16_t)(vertex_i + 0);
vertex_i += 4;
}
return pMesh->write(
context.get<gvk::Devices>()[0],
gvk::get_queue_family(context.get<gvk::Devices>()[0], 0).queues[0],
context.get<gvk::CommandBuffers>()[0],
VK_NULL_HANDLE,
(uint32_t)vertices.size(),
vertices.data(),
(uint32_t)indices.size(),
indices.data()
);
}
int main(int, const char*[])
{
gvk_result_scope_begin(VK_ERROR_INITIALIZATION_FAILED) {
GvkSampleContext context;
gvk_result(GvkSampleContext::create("Intel(R) GPA Utilities for Vulkan* - Getting Started - 05 - GUI", &context));
gvk::system::Surface systemSurface;
gvk_result(gvk_sample_create_sys_surface(context, &systemSurface));
gvk::wsi::Context wsiContext;
gvk_result(gvk_sample_create_wsi_context(context, systemSurface, &wsiContext));
// Create a gvk::gui::Renderer
gvk::gui::Renderer guiRenderer;
gvk_result(gvk::gui::Renderer::create(
context.get<gvk::Devices>()[0],
gvk::get_queue_family(context.get<gvk::Devices>()[0], 0).queues[0],
context.get<gvk::CommandBuffers>()[0],
wsiContext.get<gvk::RenderPass>(),
nullptr,
&guiRenderer
));
// Create a gvk::RenderTarget. We're going to want to be able to render to
// this gvk::RenderTarget and the gvk::WsiManager gvk::RenderTarget objects
// using the same gvk::Pipeline objects so the gvk::RenderPass objects need to
// be compatible...
auto wsiContextInfo = wsiContext.get<gvk::wsi::Context::Info>();
GvkSampleRenderTargetCreateInfo renderTargetCreateInfo{ };
renderTargetCreateInfo.extent = { 1024, 1024 };
renderTargetCreateInfo.sampleCount = wsiContextInfo.sampleCount;
renderTargetCreateInfo.colorFormat = wsiContextInfo.surfaceFormat.format;
renderTargetCreateInfo.depthFormat = wsiContextInfo.depthFormat;
gvk::RenderTarget renderTarget;
gvk_result(gvk_sample_create_render_target(context, renderTargetCreateInfo, &renderTarget));
// Create the gvk::Sampler that we'll use when we bind the gvk::RenderTarget
// color attachment as a shader resource...
gvk::Sampler sampler;
gvk_result(gvk::Sampler::create(context.get<gvk::Devices>()[0], &gvk::get_default<VkSamplerCreateInfo>(), nullptr, &sampler));
// Create resources for our cube object...this includes a gvk::Mesh, a uniform
// gvk::Buffer, a gvk::math::Transform, and a gvk::Pipeline...
gvk::Mesh cubeMesh;
gvk_result(create_mesh(context, { 1, 1, 1 }, gvk::math::Color::Black, gvk::math::Color::White, &cubeMesh));
gvk::Buffer cubeUniformBuffer;
gvk_result(gvk_sample_create_uniform_buffer<ObjectUniforms>(context, &cubeUniformBuffer));
gvk::math::Transform cubeTransform;
gvk::spirv::ShaderInfo vertexShaderInfo{ };
vertexShaderInfo.language = gvk::spirv::ShadingLanguage::Glsl;
vertexShaderInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
vertexShaderInfo.lineOffset = __LINE__;
vertexShaderInfo.source = R"(
#version 450
layout(set = 0, binding = 0)
uniform CameraUniformBuffer
{
mat4 view;
mat4 projection;
} camera;
layout(set = 1, binding = 0)
uniform ObjectUniformBuffer
{
mat4 world;
} object;
layout(location = 0) in vec3 vsPosition;
layout(location = 1) in vec2 vsTexCoord;
layout(location = 2) in vec4 vsColor;
layout(location = 0) out vec2 fsTexCoord;
layout(location = 1) out vec4 fsColor;
out gl_PerVertex
{
vec4 gl_Position;
};
void main()
{
gl_Position = camera.projection * camera.view * object.world * vec4(vsPosition, 1);
fsTexCoord = vsTexCoord;
fsColor = vsColor;
}
)";
gvk::spirv::ShaderInfo fragmentShaderInfo{ };
fragmentShaderInfo.language = gvk::spirv::ShadingLanguage::Glsl;
fragmentShaderInfo.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
fragmentShaderInfo.lineOffset = __LINE__;
fragmentShaderInfo.source = R"(
#version 450
layout(location = 0) in vec2 fsTexCoord;
layout(location = 1) in vec4 fsColor;
layout(location = 0) out vec4 fragColor;
void main()
{
fragColor = fsColor;
}
)";
gvk::Pipeline cubePipeline;
gvk_result(gvk_sample_create_pipeline<VertexPositionTexcoordColor>(
renderTarget.get<gvk::Framebuffer>().get<gvk::RenderPass>(),
VK_CULL_MODE_NONE,
vertexShaderInfo,
fragmentShaderInfo,
&cubePipeline
));
// Create resources for our floor object...this includes a gvk::Mesh, a uniform
// gvk::Buffer, a gvk::math::Transform, and a gvk::Pipeline...
gvk::Mesh floorMesh;
gvk_result(create_mesh(context, { 6, 0, 6 }, gvk::math::Color::White, gvk::math::Color::SlateGray, &floorMesh));
gvk::Buffer floorUniformBuffer;
gvk_result(gvk_sample_create_uniform_buffer<ObjectUniforms>(context, &floorUniformBuffer));
gvk::math::Transform floorTransform;
vertexShaderInfo.language = gvk::spirv::ShadingLanguage::Glsl;
vertexShaderInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
vertexShaderInfo.lineOffset = __LINE__;
vertexShaderInfo.source = R"(
#version 450
layout(set = 0, binding = 0)
uniform CameraUniformBuffer
{
mat4 view;
mat4 projection;
} camera;
layout(set = 1, binding = 0)
uniform ObjectUniformBuffer
{
mat4 world;
} object;
layout(location = 0) in vec3 vsPosition;
layout(location = 1) in vec2 vsTexcoord;
layout(location = 2) in vec4 vsColor;
layout(location = 0) out vec4 fsPosition;
layout(location = 1) out vec2 fsTexcoord;
layout(location = 2) out vec4 fsColor;
out gl_PerVertex
{
vec4 gl_Position;
};
void main()
{
fsPosition = camera.projection * camera.view * object.world * vec4(vsPosition, 1);
gl_Position = fsPosition;
fsTexcoord = vsTexcoord;
fsColor = vsColor;
}
)";
fragmentShaderInfo.language = gvk::spirv::ShadingLanguage::Glsl;
fragmentShaderInfo.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
fragmentShaderInfo.lineOffset = __LINE__;
fragmentShaderInfo.source = R"(
#version 450
layout(set = 1, binding = 1) uniform sampler2D reflectionImage;
layout(location = 0) in vec4 fsPosition;
layout(location = 1) in vec2 fsTexcoord;
layout(location = 2) in vec4 fsColor;
layout(location = 0) out vec4 fragColor;
void main()
{
// Calculate surface color
vec4 surfaceColor;
surfaceColor.rb = fsTexcoord;
surfaceColor.g = dot(surfaceColor.rb, vec2(0.5));
// Calculate reflection texcoord
vec2 reflectionTexcoord = fsPosition.xy * (1.0 / fsPosition.w);
reflectionTexcoord += vec2(1, 1);
reflectionTexcoord *= 0.5;
// Calculate reflection color
vec4 reflectionColor = texture(reflectionImage, reflectionTexcoord);
reflectionColor.a *= 0.34;
reflectionColor.rgb *= reflectionColor.a;
fragColor.rgb = surfaceColor.rgb + reflectionColor.rgb;
fragColor.a = 1;
}
)";
gvk::Pipeline floorPipeline;
gvk_result(gvk_sample_create_pipeline<VertexPositionTexcoordColor>(
renderTarget.get<gvk::Framebuffer>().get<gvk::RenderPass>(),
VK_CULL_MODE_BACK_BIT,
vertexShaderInfo,
fragmentShaderInfo,
&floorPipeline
));
// Create camera uniform gvk::Buffer objects...
gvk::Buffer cameraUniformBuffer;
gvk::Buffer reflectionCameraUniformBuffer;
gvk_result(gvk_sample_create_uniform_buffer<CameraUniforms>(context, &cameraUniformBuffer));
gvk_result(gvk_sample_create_uniform_buffer<CameraUniforms>(context, &reflectionCameraUniformBuffer));
// Allocate gvk::DescriptorSet objects...because both gvk::Pipeline objects
// have individual camera and object uniforms we expect 2 gvk::DescriptorSet
// objects for each, with the camera gvk::DescriptorSet at index 0 and the
// object gvk::DescriptorSet at index 1 as defined in the vertex shader GLSL.
// The gvk::Pipeline that will be used to draw the floor object uses the
// gvk::RenderTarget as a texture to create the reflection of the cube object.
// The gvk::ImageView for the gvk::RenderTarget color attachment will be at
// gvk::DescriptorSet 1 and binding index 1...
std::vector<gvk::DescriptorSet> descriptorSets;
gvk_result(gvk_sample_allocate_descriptor_sets(cubePipeline, descriptorSets));
assert(descriptorSets.size() == 2);
auto reflectionCameraDescriptorSet = descriptorSets[0];
auto cubeDescriptorSet = descriptorSets[1];
gvk_result(gvk_sample_allocate_descriptor_sets(floorPipeline, descriptorSets));
assert(descriptorSets.size() == 2);
auto cameraDescriptorSet = descriptorSets[0];
auto floorDescriptorSet = descriptorSets[1];
// Prepare descriptors...
auto cubeUniformBufferDescriptorInfo = gvk::get_default<VkDescriptorBufferInfo>();
cubeUniformBufferDescriptorInfo.buffer = cubeUniformBuffer;
auto floorUniformBufferDescriptorInfo = gvk::get_default<VkDescriptorBufferInfo>();
floorUniformBufferDescriptorInfo.buffer = floorUniformBuffer;
auto cameraUniformBufferDescriptorInfo = gvk::get_default<VkDescriptorBufferInfo>();
cameraUniformBufferDescriptorInfo.buffer = cameraUniformBuffer;
auto reflectionCameraUniformBufferDescriptorInfo = gvk::get_default<VkDescriptorBufferInfo>();
reflectionCameraUniformBufferDescriptorInfo.buffer = reflectionCameraUniformBuffer;
// For the VkDescriptorImageInfo we'll use the gvk::RenderTarget object's
// color attachment. If the gvk::RenderTarget has multisample anti aliasing
// enabled, the MSAA attachment will be at index 0 and the resolve attachment
// will be the gvk::ImageView at index 1...
auto colorAttachmentIndex = VK_SAMPLE_COUNT_1_BIT < renderTargetCreateInfo.sampleCount ? 1 : 0;
assert(!renderTarget.get<gvk::Framebuffer>().get<gvk::ImageViews>().empty());
auto renderTargetColorAttachmentDescriptorInfo = gvk::get_default<VkDescriptorImageInfo>();
renderTargetColorAttachmentDescriptorInfo.sampler = sampler;
renderTargetColorAttachmentDescriptorInfo.imageView = renderTarget.get<gvk::Framebuffer>().get<gvk::ImageViews>()[colorAttachmentIndex];
renderTargetColorAttachmentDescriptorInfo.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
// Write the descriptors...
std::array<VkWriteDescriptorSet, 5> writeDescriptorSets{
VkWriteDescriptorSet {
/* .sType = */ gvk::get_stype<VkWriteDescriptorSet>(),
/* .pNext = */ nullptr,
/* .dstSet = */ cubeDescriptorSet,
/* .dstBinding = */ 0,
/* .dstArrayElement = */ 0,
/* .descriptorCount = */ 1,
/* .descriptorType = */ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
/* .pImageInfo = */ nullptr,
/* .pBufferInfo = */ &cubeUniformBufferDescriptorInfo,
/* .pTexelBufferView = */ nullptr,
},
VkWriteDescriptorSet {
/* .sType = */ gvk::get_stype<VkWriteDescriptorSet>(),
/* .pNext = */ nullptr,
/* .dstSet = */ floorDescriptorSet,
/* .dstBinding = */ 0,
/* .dstArrayElement = */ 0,
/* .descriptorCount = */ 1,
/* .descriptorType = */ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
/* .pImageInfo = */ nullptr,
/* .pBufferInfo = */ &floorUniformBufferDescriptorInfo,
/* .pTexelBufferView = */ nullptr,
},
VkWriteDescriptorSet {
/* .sType = */ gvk::get_stype<VkWriteDescriptorSet>(),
/* .pNext = */ nullptr,
/* .dstSet = */ floorDescriptorSet,
/* .dstBinding = */ 1,
/* .dstArrayElement = */ 0,
/* .descriptorCount = */ 1,
/* .descriptorType = */ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
/* .pImageInfo = */ &renderTargetColorAttachmentDescriptorInfo,
/* .pBufferInfo = */ nullptr,
/* .pTexelBufferView = */ nullptr,
},
VkWriteDescriptorSet {
/* .sType = */ gvk::get_stype<VkWriteDescriptorSet>(),
/* .pNext = */ nullptr,
/* .dstSet = */ cameraDescriptorSet,
/* .dstBinding = */ 0,
/* .dstArrayElement = */ 0,
/* .descriptorCount = */ 1,
/* .descriptorType = */ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
/* .pImageInfo = */ nullptr,
/* .pBufferInfo = */ &cameraUniformBufferDescriptorInfo,
/* .pTexelBufferView = */ nullptr,
},
VkWriteDescriptorSet {
/* .sType = */ gvk::get_stype<VkWriteDescriptorSet>(),
/* .pNext = */ nullptr,
/* .dstSet = */ reflectionCameraDescriptorSet,
/* .dstBinding = */ 0,
/* .dstArrayElement = */ 0,
/* .descriptorCount = */ 1,
/* .descriptorType = */ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
/* .pImageInfo = */ nullptr,
/* .pBufferInfo = */ &reflectionCameraUniformBufferDescriptorInfo,
/* .pTexelBufferView = */ nullptr,
},
};
vkUpdateDescriptorSets(context.get<gvk::Devices>()[0], (uint32_t)writeDescriptorSets.size(), writeDescriptorSets.data(), 0, nullptr);
// In addition to the DescriptorSets used for the 3D scene, we'll need one more
// to provide ImGui with the render target for display in the gui
std::vector<gvk::DescriptorSet> guiDescriptorSets;
gvk_result(gvk_sample_allocate_descriptor_sets(guiRenderer.get<gvk::Pipeline>(), guiDescriptorSets));
assert(guiDescriptorSets.size() == 1);
auto writeDescriptorSet = gvk::get_default<VkWriteDescriptorSet>();
writeDescriptorSet.dstSet = guiDescriptorSets[0];
writeDescriptorSet.descriptorCount = 1;
writeDescriptorSet.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
writeDescriptorSet.pImageInfo = &renderTargetColorAttachmentDescriptorInfo;
vkUpdateDescriptorSets(context.get<gvk::Devices>()[0], 1, &writeDescriptorSet, 0, nullptr);
// These variables will be controlled via gui widgets
bool showGui = true;
float anchor = 1.5f;
float amplitude = 0.5f;
float frequency = 3;
float yRotation = 90.0f;
float zRotation = 45.0f;
float guiImageScale = 0.125f;
gvk::math::Camera camera;
camera.transform.translation = { 0, 2, -7 };
gvk::math::FreeCameraController cameraController;
cameraController.set_camera(&camera);
gvk::system::Clock clock;
while (
!(systemSurface.get<gvk::system::Input>().keyboard.down(gvk::system::Key::Escape)) &&
!(systemSurface.get<gvk::system::Surface::StatusFlags>() & gvk::system::Surface::CloseRequested)) {
gvk::system::Surface::update();
clock.update();
// Update the gvk::math::FreeCameraController...
auto deltaTime = clock.elapsed<gvk::system::Seconds<float>>();
const auto& input = systemSurface.get<gvk::system::Input>();
// Toggle the gui display with [`]
if (input.keyboard.pressed(gvk::system::Key::OEM_Tilde)) {
showGui = !showGui;
}
// When ImGui wants mouse/keyboard input, input should be ignored by the scene
if (!ImGui::GetIO().WantCaptureMouse && !ImGui::GetIO().WantCaptureKeyboard) {
gvk::math::FreeCameraController::UpdateInfo cameraControllerUpdateInfo {
/* .deltaTime = */ deltaTime,
/* .moveUp = */ input.keyboard.down(gvk::system::Key::Q),
/* .moveDown = */ input.keyboard.down(gvk::system::Key::E),
/* .moveLeft = */ input.keyboard.down(gvk::system::Key::A),
/* .moveRight = */ input.keyboard.down(gvk::system::Key::D),
/* .moveForward = */ input.keyboard.down(gvk::system::Key::W),
/* .moveBackward = */ input.keyboard.down(gvk::system::Key::S),
/* .moveSpeedMultiplier = */ input.keyboard.down(gvk::system::Key::LeftShift) ? 2.0f : 1.0f,
/* .lookDelta = */ { input.mouse.position.delta()[0], input.mouse.position.delta()[1] },
/* .fieldOfViewDelta = */ input.mouse.scroll.delta()[1],
};
cameraController.lookEnabled = input.mouse.buttons.down(gvk::system::Mouse::Button::Left);
if (cameraController.lookEnabled) {
systemSurface.set(gvk::system::Surface::CursorMode::Hidden);
} else {
systemSurface.set(gvk::system::Surface::CursorMode::Visible);
}
if (input.mouse.buttons.pressed(gvk::system::Mouse::Button::Right)) {
camera.fieldOfView = 60.0f;
}
cameraController.update(cameraControllerUpdateInfo);
}
// Update the floating cube object's gvk::math::Transform...
cubeTransform.translation.y = anchor + amplitude * glm::sin(frequency * clock.total<gvk::system::Seconds<float>>());
auto cubeRotationY = glm::angleAxis(glm::radians(yRotation * deltaTime), glm::vec3 { 0, 1, 0 });
auto cubeRotationZ = glm::angleAxis(glm::radians(zRotation * deltaTime), glm::vec3 { 0, 0, 1 });
cubeTransform.rotation = glm::normalize(cubeRotationY * cubeTransform.rotation * cubeRotationZ);
// Uddate the gvk::math::Camera uniform data...
CameraUniforms cameraUbo { };
cameraUbo.view = camera.view();
cameraUbo.projection = camera.projection();
VmaAllocationInfo allocationInfo{ };
vmaGetAllocationInfo(context.get<gvk::Devices>()[0].get<VmaAllocator>(), cameraUniformBuffer.get<VmaAllocation>(), &allocationInfo);
assert(allocationInfo.pMappedData);
memcpy(allocationInfo.pMappedData, &cameraUbo, sizeof(CameraUniforms));
// Setup the reflection vk::math::Camera uniforms by scaling the view by -1 on
// the y axis then update the reflection gvk::math::Camera uniform data...
cameraUbo.view = cameraUbo.view * glm::scale(glm::vec3 { 1, -1, 1 });
vmaGetAllocationInfo(context.get<gvk::Devices>()[0].get<VmaAllocator>(), reflectionCameraUniformBuffer.get<VmaAllocation>(), &allocationInfo);
assert(allocationInfo.pMappedData);
memcpy(allocationInfo.pMappedData, &cameraUbo, sizeof(CameraUniforms));
// Update the cube uniform data...
ObjectUniforms cubeUbo{ };
cubeUbo.world = cubeTransform.world_from_local();
vmaGetAllocationInfo(context.get<gvk::Devices>()[0].get<VmaAllocator>(), cubeUniformBuffer.get<VmaAllocation>(), &allocationInfo);
assert(allocationInfo.pMappedData);
memcpy(allocationInfo.pMappedData, &cubeUbo, sizeof(ObjectUniforms));
// Update the floor uniform data...
ObjectUniforms floorUbo{ };
floorUbo.world = floorTransform.world_from_local();
vmaGetAllocationInfo(context.get<gvk::Devices>()[0].get<VmaAllocator>(), floorUniformBuffer.get<VmaAllocation>(), &allocationInfo);
assert(allocationInfo.pMappedData);
memcpy(allocationInfo.pMappedData, &floorUbo, sizeof(ObjectUniforms));
gvk::wsi::AcquiredImageInfo acquiredImageInfo{ };
gvk::RenderTarget acquiredImageRenderTarget = VK_NULL_HANDLE;
auto wsiStatus = wsiContext.acquire_next_image(UINT64_MAX, VK_NULL_HANDLE, &acquiredImageInfo, &acquiredImageRenderTarget);
if (wsiStatus == VK_SUCCESS || wsiStatus == VK_SUBOPTIMAL_KHR) {
const auto& device = context.get<gvk::Devices>()[0];
auto extent = wsiContext.get<gvk::SwapchainKHR>().get<VkSwapchainCreateInfoKHR>().imageExtent;
camera.set_aspect_ratio(extent.width, extent.height);
// If the gvk::gui::Renderer is enabled, update values based on gui interaction
if (showGui) {
// Update the gvk::system::Surface::CursorMode mode based on gui interaction
auto imguiCursor = ImGui::GetMouseCursor();
if (imguiCursor == ImGuiMouseCursor_None || ImGui::GetIO().MouseDrawCursor) {
systemSurface.set(gvk::system::Surface::CursorMode::Hidden);
} else {
switch (imguiCursor) {
case ImGuiMouseCursor_Arrow: systemSurface.set(gvk::system::Surface::CursorType::Arrow); break;
case ImGuiMouseCursor_TextInput: systemSurface.set(gvk::system::Surface::CursorType::IBeam); break;
case ImGuiMouseCursor_Hand: systemSurface.set(gvk::system::Surface::CursorType::Hand); break;
case ImGuiMouseCursor_ResizeNS: systemSurface.set(gvk::system::Surface::CursorType::ResizeNS); break;
case ImGuiMouseCursor_ResizeEW: systemSurface.set(gvk::system::Surface::CursorType::ResizeEW); break;
case ImGuiMouseCursor_ResizeAll: systemSurface.set(gvk::system::Surface::CursorType::ResizeAll); break;
case ImGuiMouseCursor_ResizeNESW: systemSurface.set(gvk::system::Surface::CursorType::ResizeNESW); break;
case ImGuiMouseCursor_ResizeNWSE: systemSurface.set(gvk::system::Surface::CursorType::ResizeNWSE); break;
case ImGuiMouseCursor_NotAllowed: systemSurface.set(gvk::system::Surface::CursorType::NotAllowed); break;
default: break;
}
}
if (systemSurface.get<gvk::system::Surface::StatusFlags>() & gvk::system::Surface::GainedFocus) {
ImGui::GetIO().AddFocusEvent(true);
}
if (systemSurface.get<gvk::system::Surface::StatusFlags>() & gvk::system::Surface::LostFocus) {
ImGui::GetIO().AddFocusEvent(false);
}
// Prepare a gvk::gui::Renderer::BeginInfo
const auto& textStream = systemSurface.get<gvk::system::Surface::TextStream>();
auto guiRendererBeginInfo = gvk::get_default<gvk::gui::Renderer::BeginInfo>();
guiRendererBeginInfo.deltaTime = deltaTime;
guiRendererBeginInfo.extent = { (float)extent.width, (float)extent.height };
guiRendererBeginInfo.pInput = &input;
guiRendererBeginInfo.textStreamCodePointCount = (uint32_t)textStream.size();
guiRendererBeginInfo.pTextStreamCodePoints = !textStream.empty() ? textStream.data() : nullptr;
// Call guiRenderer.begin_gui(). Note that all ImGui widgets must be handled
// between calls to begin_gui()/end_gui()
guiRenderer.begin_gui(guiRendererBeginInfo);
ImGui::ShowDemoWindow();
ImGui::DragFloat("anchor", &anchor, 0.01f);
ImGui::DragFloat("amplitude", &litude, 0.1f);
ImGui::DragFloat("frequency", &frequency, 0.1f);
ImGui::DragFloat("yRotation", &yRotation, 0.1f);
ImGui::DragFloat("zRotation", &zRotation, 0.1f);
ImGui::DragFloat("guiImageScale", &guiImageScale, 0.005f, 0.01f, 0.5f);
ImVec2 guiImageExtent { renderTargetCreateInfo.extent.width * guiImageScale, renderTargetCreateInfo.extent.height * guiImageScale };
ImGui::Image((uint64_t)(VkDescriptorSet)guiDescriptorSets[0], guiImageExtent);
guiRenderer.end_gui(acquiredImageInfo.index);
}
gvk_result(vkBeginCommandBuffer(acquiredImageInfo.commandBuffer, &gvk::get_default<VkCommandBufferBeginInfo>()));
auto renderPassBeginInfo = renderTarget.get<VkRenderPassBeginInfo>();
vkCmdBeginRenderPass(acquiredImageInfo.commandBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
{
VkRect2D scissor { { }, renderPassBeginInfo.renderArea.extent };
vkCmdSetScissor(acquiredImageInfo.commandBuffer, 0, 1, &scissor);
VkViewport viewport { 0, 0, (float)scissor.extent.width, (float)scissor.extent.height, 0, 1 };
vkCmdSetViewport(acquiredImageInfo.commandBuffer, 0, 1, &viewport);
// Bind cube gvk::Pipeline, reflection gvk::math::Camera uniform gvk::Buffer,
// and the cube uniform gvk::Buffer, then render the cube gvk::Mesh. This
// will draw the cube into the gvk::RenderTarget with the reflection view
// matrix...in the next gvk::RenderPass, we'll use this gvk::RenderTarget as
// the texture for the floor to create the illusion of a reflection on the
// floor...
auto pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
vkCmdBindPipeline(acquiredImageInfo.commandBuffer, pipelineBindPoint, cubePipeline);
vkCmdBindDescriptorSets(acquiredImageInfo.commandBuffer, pipelineBindPoint, cubePipeline.get<gvk::PipelineLayout>(), 0, 1, &reflectionCameraDescriptorSet.get<VkDescriptorSet>(), 0, nullptr);
vkCmdBindDescriptorSets(acquiredImageInfo.commandBuffer, pipelineBindPoint, cubePipeline.get<gvk::PipelineLayout>(), 1, 1, &cubeDescriptorSet.get<VkDescriptorSet>(), 0, nullptr);
cubeMesh.record_cmds(acquiredImageInfo.commandBuffer);
}
vkCmdEndRenderPass(acquiredImageInfo.commandBuffer);
// Begin the gvk::RenderPass that renders into the gvk::WsiManager...
renderPassBeginInfo = acquiredImageRenderTarget.get<VkRenderPassBeginInfo>();
vkCmdBeginRenderPass(acquiredImageInfo.commandBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
{
VkRect2D scissor { { }, renderPassBeginInfo.renderArea.extent };
vkCmdSetScissor(acquiredImageInfo.commandBuffer, 0, 1, &scissor);
VkViewport viewport { 0, 0, (float)scissor.extent.width, (float)scissor.extent.height, 0, 1 };
vkCmdSetViewport(acquiredImageInfo.commandBuffer, 0, 1, &viewport);
// Bind the gvk::math::Camera uniform gvk::Buffer and the floor resources then
// issue a draw call for the floor. Then bind the floating cube resources...
// we can leave the gvk::math::Camera uniform gvk::Buffer bound and update the
// gvk::Pipeline and gvk::DescriptorSet at index 1 without distrubing the
// gvk::DescriptorSet at index 0...then issue a draw call for the floating
// cube...
auto pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
vkCmdBindPipeline(acquiredImageInfo.commandBuffer, pipelineBindPoint, floorPipeline);
vkCmdBindDescriptorSets(acquiredImageInfo.commandBuffer, pipelineBindPoint, floorPipeline.get<gvk::PipelineLayout>(), 0, 1, &cameraDescriptorSet.get<VkDescriptorSet>(), 0, nullptr);
vkCmdBindDescriptorSets(acquiredImageInfo.commandBuffer, pipelineBindPoint, floorPipeline.get<gvk::PipelineLayout>(), 1, 1, &floorDescriptorSet.get<VkDescriptorSet>(), 0, nullptr);
floorMesh.record_cmds(acquiredImageInfo.commandBuffer);
vkCmdBindPipeline(acquiredImageInfo.commandBuffer, pipelineBindPoint, cubePipeline);
vkCmdBindDescriptorSets(acquiredImageInfo.commandBuffer, pipelineBindPoint, cubePipeline.get<gvk::PipelineLayout>(), 1, 1, &cubeDescriptorSet.get<VkDescriptorSet>(), 0, nullptr);
cubeMesh.record_cmds(acquiredImageInfo.commandBuffer);
}
// If the gvk::gui::Renderer is enabled, record cmds to render it
if (showGui) {
guiRenderer.record_cmds(acquiredImageInfo.commandBuffer, acquiredImageInfo.index);
}
vkCmdEndRenderPass(acquiredImageInfo.commandBuffer);
// Ensure the gvk::RenderTarget attachments are transitioned back to the
// VkImageLayout expected when the gvk::RenderPass is next executed...the
// VkImageMemoryBarrier objects provided by gvk::RenderTarget do not
// account for layout transitions that occur outside of the associated
// gvk::RenderPass, those must be handled by your application...
auto attachmentCount = renderTarget.get<gvk::Framebuffer>().get<gvk::RenderPass>().get<VkRenderPassCreateInfo2>().attachmentCount;
for (size_t attachment_i = 0; attachment_i < attachmentCount; ++attachment_i) {
auto imageMemoryBarrier = renderTarget.get<VkImageMemoryBarrier>((uint32_t)attachment_i);
if (imageMemoryBarrier.oldLayout != imageMemoryBarrier.newLayout) {
vkCmdPipelineBarrier(
acquiredImageInfo.commandBuffer,
VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,
VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT,
0,
0, nullptr,
0, nullptr,
1, &imageMemoryBarrier
);
}
}
gvk_result(vkEndCommandBuffer(acquiredImageInfo.commandBuffer));
const auto& queue = gvk::get_queue_family(device, 0).queues[0];
gvk_result(vkQueueSubmit(queue, 1, &wsiContext.get<VkSubmitInfo>(acquiredImageInfo), acquiredImageInfo.fence));
wsiStatus = wsiContext.queue_present(queue, &acquiredImageInfo);
gvk_result((wsiStatus == VK_SUBOPTIMAL_KHR || wsiStatus == VK_ERROR_OUT_OF_DATE_KHR) ? VK_SUCCESS : wsiStatus);
}
}
gvk_result(vkDeviceWaitIdle(context.get<gvk::Devices>()[0]));
} gvk_result_scope_end;
if (gvkResult) {
std::cerr << gvk::to_string(gvkResult) << std::endl;
}
return (int)gvkResult;
}