fix rdtsc, example for rdtsc -> real time, start work on lighting

src/gears/main.d

@@ -14,6 +14,25 @@ void main()
 	r.Renderer rd = r.Init(&window);
 	scope(exit) r.Destroy(&rd);
 
+	u64 os_freq = OSTimeFreq();
+	u64 cpu_start = RDTSC();
+	u64 os_start = OSTime();
+	u64 os_end = 0;
+	u64 os_elapsed = 0;
+
+	while (os_elapsed < os_freq)
+	{
+		os_end = OSTime();
+		os_elapsed = os_end - os_start;
+	}
+
+	u64 cpu_end = RDTSC();
+	u64 cpu_elapsed = cpu_end - cpu_start;
+
+	writefln("  OS Timer: %s -> %s = %s elapsed", os_start, os_end, os_elapsed);
+	writefln("OS Seconds: %.4f", cast(f64)(os_elapsed)/cast(f64)(os_freq));
+	writefln(" CPU Timer: %s -> %s = %s elapsed", cpu_start, cpu_end, cpu_elapsed);
+
 	while (true)
 	{
 		p.HandleEvents(&window);

src/gears/renderer.d

@@ -49,6 +49,24 @@ enum BufferType : int
 
 alias BT = BufferType;
 
+struct GlobalUniforms
+{
+	Mat4 view_matrix;
+	Mat4 projection_matrix;
+	Vec2 res;
+}
+
+struct ShaderUniforms
+{
+	f32 placeholder;
+}
+
+struct PushConst
+{
+	Mat4 model_matrix;
+	u32 mat_id;
+}
+
 enum PipelineType : int
 {
 	Graphics,
@@ -109,25 +127,15 @@ struct Renderer
 
 struct Camera
 {
-	Vec3 pos = Vec3(0.0);
-	Vec3 target = Vec3(0.0);
-}
-
-struct GlobalUniforms
-{
-	Mat4 world_matrix;
-	Vec2 res;
-}
-
-struct ShaderUniforms
-{
-	f32 placeholder;
+	Vec3 pos = Vec3(0.0, 0.0, 3.0);
+	Vec3 front = Vec3(0.0, 0.0, -1.0);
+	Vec3 up = Vec3(0.0, 1.0, 0.0);
 }
 
 extern(C) struct Material
 {
 	Vec4 ambient;
-	Vec4 diffuse;
+	Vec4 albedo;
 	Vec4 specular;
 	u32 albedo_texture;
 	u32 ambient_texture;
@@ -227,9 +235,9 @@ Init(p.Window* window)
 	rd.ui_pipeline = BuildGfxPipeline(&rd, &ui_info);
 	rd.compute_pipeline = BuildCompPipeline(&rd, &gradient_info);
 
-	rd.model = LoadModel(&rd, "models/Tree01.m3d");
+	rd.model = LoadModel(&rd, "models/yoda.m3d");
 
-	ReadModel(&rd, "models/Tree01.m3d");
+	ReadModel(&rd, "models/yoda.m3d");
 
 	return rd;
 }
@@ -239,11 +247,7 @@ 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;
-
-	rd.globals.world_matrix = Mat4(1.0);
+	rd.globals.view_matrix = Mat4(1.0);
 
 	BeginFrame(rd);
 
@@ -460,6 +464,7 @@ LoadModel(Renderer* rd, string name)
 		{
 			switch (m3d.material[i].prop[j].type)
 			{
+			case m3dp_Kd: ConvertColor(&mats[i].albedo, m3d.material[i].prop[j].value.color); break;
 			case m3dp_Ka: ConvertColor(&mats[i].ambient, m3d.material[i].prop[j].value.color); break;
 			case m3dp_Ks: ConvertColor(&mats[i].specular, m3d.material[i].prop[j].value.color); break;
 			case m3dp_Ns: mats[i].shininess = m3d.material[i].prop[j].value.fnum; break;
@@ -478,7 +483,7 @@ LoadModel(Renderer* rd, string name)
 					mats[i].specular_texture = tex_lookup[m3d.material[i].prop[j].value.textureid];
 					mats[i].specular_has_texture = true;
 				} break;
-			default: break;
+			default: Logf("Unimplemented: %s", m3d.material[i].prop[j].type); break;
 			}
 		}
 

src/gears/vulkan.d

@@ -91,11 +91,6 @@ enum DescType : u32
 
 alias DT = DescType;
 
-struct PushConst
-{
-	u32 mat_id;
-}
-
 struct Image
 {
 	VkImage image;
@@ -1269,6 +1264,7 @@ CreateGraphicsPipeline(Vulkan* vk, GfxPipelineInfo* build_info)
 
 	VkPipelineRasterizationStateCreateInfo rasterization_info = {
 		sType: VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
+		cullMode: VK_CULL_MODE_BACK_BIT,
 		polygonMode: VK_POLYGON_MODE_FILL,
 		lineWidth: 1.0,
 		frontFace: VK_FRONT_FACE_COUNTER_CLOCKWISE,

src/shaders/pbr.vert.glsl

@@ -24,12 +24,14 @@ void main()
 {
 	gl_Position = in_pos * y_matrix;
 
+	vec4 col = Materials[nonuniformEXT(PC.mat_id)].diffuse;
+
 	if (Materials[nonuniformEXT(PC.mat_id)].albedo_has_texture)
 	{
-		out_col = texture(sampler2D(Textures[nonuniformEXT(Materials[nonuniformEXT(PC.mat_id)].albedo_texture)], SamplerNearest), in_uv);
-	}
-	else
-	{
-		out_col = Materials[nonuniformEXT(PC.mat_id)].diffuse;
+		vec4 tex_col = texture(sampler2D(Textures[nonuniformEXT(Materials[nonuniformEXT(PC.mat_id)].albedo_texture)], SamplerNearest), in_uv);
+		col = mix(col, tex_col, 0.5);
 	}
+
+	out_col = col;
+	out_uv = in_uv;
 }

src/shaders/structures.layout

@@ -3,7 +3,8 @@
 // ****************************************************************************
 
 layout (set = 0, binding = 0) uniform GlobalUniforms {
-	mat4 world_matrix;
+	mat4 view_matrix;
+	mat4 projection_matrix;
 	vec2 res;
 } G;
 
@@ -31,5 +32,6 @@ layout (set = 2, binding = 0) uniform Material {
 } Materials[];
 
 layout (push_constant) uniform Constants {
+	mat4 model_matrix;
 	uint mat_id;
 } PC;

src/shared/util.d

@@ -359,7 +359,7 @@ Hash(string str)
 	return xxh3_64bits_withSeed(str.ptr, str.length, HASH_SEED);
 }
 
-u64
+pragma(inline): u64
 RDTSC()
 {
 	union u64_split
@@ -367,8 +367,8 @@ RDTSC()
 		u64 full;
 		struct 
 		{
-			u32 upper;
 			u32 lower;
+			u32 upper;
 		};
 	};
 
@@ -386,3 +386,28 @@ RDTSC()
 	return val.full;
 }
 
+pragma(inline): u64
+OSTimeFreq()
+{
+	version (linux)
+	{
+		u64 freq = 1000000;
+	}
+
+	return freq;
+}
+
+pragma(inline): u64
+OSTime()
+{
+	version(linux)
+	{
+		import core.sys.linux.sys.time;
+		timeval value;
+		gettimeofday(&value, null);
+
+		u64 time = OSTimeFreq() * cast(u64)(value.tv_sec) + cast(u64)(value.tv_usec);
+	}
+
+	return time;
+}