yoda spins, fix crash on suboptimal swapchain

src/gears/main.d

@@ -12,7 +12,7 @@ void main()
 	p.Window window = p.CreateWindow("Video Game", 1920, 1080);
 
 	r.Renderer rd = r.Init(&window);
-	scope(exit) r.Destroy(&rd);
+	//scope(exit) r.Destroy(&rd);
 
 	while (true)
 	{
@@ -21,5 +21,7 @@ void main()
 
 		r.Cycle(&rd);
 	}
+
+	writefln("exiting");
 }
 

src/gears/renderer.d

@@ -115,6 +115,7 @@ struct Camera
 
 struct GlobalUniforms
 {
+	Mat4 world_matrix;
 	Vec2 res;
 }
 
@@ -236,13 +237,21 @@ Cycle(Renderer* rd)
 {
 	rd.ui_count = 0;
 
+	f32 radius = 10.0;
+	f32 cam_x = sin(RDTSC()) * radius * 0.000000000001;
+	f32 cam_z = cos(RDTSC()) * radius * 0.000000000001;
+
+	Logf("cam_x %s cam_z %s", cam_x, cam_z);
+
+	rd.globals.world_matrix = Mat4.lookAt(Vec3(cam_x, 0.0, cam_z), Vec3(0.0, 0.0, 0.0), Vec3(0.0, 1.0, 0.0));
+
 	BeginFrame(rd);
 
 	Bind(rd, &rd.compute_pipeline);
 
 	SetUniform(rd, &rd.globals);
 
-	DrawRect(rd, 150.0, 300.0, 500.0, 700.0, Vec4(0.0, 0.0, 1.0, 1.0));
+	//DrawRect(rd, 150.0, 300.0, 500.0, 700.0, Vec4(0.0, 0.0, 1.0, 1.0));
 
 	PrepComputeDrawImage(rd);
 
@@ -258,7 +267,7 @@ Cycle(Renderer* rd)
 
 	Bind(rd, &rd.triangle_pipeline);
 
-	Draw(rd, 3, 1);
+	//Draw(rd, 3, 1);
 
 	Bind(rd, &rd.pbr_pipeline);
 

src/gears/vulkan.d

@@ -492,7 +492,7 @@ BeginFrame(Vulkan* vk)
 	{
 		RecreateSwapchain(vk);
 	}
-	else 
+	else if (result != VK_SUBOPTIMAL_KHR)
 	{
 		VkCheckA("BeginFrame failure: vkAcquireNextImageKHR error", result);
 	}

src/shaders/pbr.vert.glsl

@@ -22,7 +22,7 @@ mat4 y_matrix = mat4(
 
 void main()
 {
-	gl_Position = in_pos * y_matrix;
+	gl_Position = in_pos * y_matrix * G.world_matrix;
 
 	if (Materials[nonuniformEXT(PC.mat_id)].albedo_has_texture)
 	{

src/shaders/structures.layout

@@ -3,6 +3,7 @@
 // ****************************************************************************
 
 layout (set = 0, binding = 0) uniform GlobalUniforms {
+	mat4 world_matrix;
 	vec2 res;
 } G;
 

src/shared/aliases.d

@@ -1,6 +1,7 @@
 import core.memory;
 import std.stdint;
 import dplug.math;
+import std.math.trigonometry;
 
 debug
 {

src/shared/util.d

@@ -359,3 +359,30 @@ Hash(string str)
 	return xxh3_64bits_withSeed(str.ptr, str.length, HASH_SEED);
 }
 
+u64
+RDTSC()
+{
+	union u64_split
+	{
+		u64 full;
+		struct 
+		{
+			u32 upper;
+			u32 lower;
+		};
+	};
+
+	u64_split val;
+	u64_split* valp = &val;
+	asm
+	{
+		cpuid;
+		rdtsc;
+		mov R8, valp;
+		mov valp.upper.offsetof[R8], EDX;
+		mov valp.lower.offsetof[R8], EAX;
+	}
+
+	return val.full;
+}
+