Fixed it!

Holy shit all it was really was performing a computation without assigning the result (x *= n instead of x * n).

Renderer/Pipeline.cpp

@@ -95,7 +95,7 @@ GraphicsPipeline::GraphicsPipeline(vk::Device dev, const std::vector<Shader>& sh
 		.depthClampEnable = vk::False,
 		.polygonMode = type == Type::eGLTF? vk::PolygonMode::eFill : vk::PolygonMode::eLine,
 		.cullMode = vk::CullModeFlagBits::eNone,
-		.frontFace = vk::FrontFace::eCounterClockwise,
+		.frontFace = Type::eGLTF ? vk::FrontFace::eClockwise : vk::FrontFace::eCounterClockwise,
 		.depthBiasEnable = vk::False,
 		.lineWidth = 1.0,
 	};

Renderer/Renderer.cpp

@@ -53,12 +53,20 @@ Renderer::Renderer(Window& win) : win(win) {
 		Log::info("\t\"%s\"\n", layer.layerName.data());
 	}
 
+	vk::ValidationFeatureEnableEXT enabled[] = { vk::ValidationFeatureEnableEXT::eDebugPrintf, vk::ValidationFeatureEnableEXT::eBestPractices };
+	vk::ValidationFeaturesEXT validation_features{ };
+	validation_features.disabledValidationFeatureCount = 0;
+	validation_features.enabledValidationFeatureCount = std::size(enabled);
+	validation_features.pDisabledValidationFeatures = nullptr;
+	validation_features.pEnabledValidationFeatures = enabled;
+
 	const char* my_layers[] = {
 		//		"VK_LAYER_LUNARG_api_dump",
 				"VK_LAYER_KHRONOS_validation",
 	};
 
 	auto inst_info = vk::InstanceCreateInfo{
+		.pNext = &validation_features,
 		.pApplicationInfo = &app_info,
 		.enabledLayerCount = std::size(my_layers),
 		.ppEnabledLayerNames = my_layers,
@@ -125,6 +133,7 @@ Renderer::Renderer(Window& win) : win(win) {
 	std::vector<const char*> req_dev_extensions;
 	req_dev_extensions.push_back("VK_KHR_swapchain");
 	req_dev_extensions.push_back(VK_KHR_MAINTENANCE1_EXTENSION_NAME);
+	req_dev_extensions.push_back("VK_KHR_shader_non_semantic_info");
 
 	auto dev_extentions = phys_dev.enumerateDeviceExtensionProperties();
 	Log::info("%zu available device extensions\n", dev_extentions.size());
@@ -184,7 +193,7 @@ Renderer::Renderer(Window& win) : win(win) {
 
 	textures = createResources({
 		"assets/textures/oil.jpg",
-		"assets/textures/heightmap.png",
+		"assets/textures/eire.png",
 	});
 
 	std::vector<Shader> shaders = {
@@ -208,7 +217,7 @@ Renderer::Renderer(Window& win) : win(win) {
 	pipeline = std::make_unique<GraphicsPipeline>(dev, shaders, swapchain->extent, *render_pass, bindings, *models[0]->vertex_buffer);
 
 	pipeline->update(0, *uniform_buffer);
-	pipeline->update(1, textures[0]);
+	pipeline->update(1, textures[1]);
 
 
 	/* create Terrain */
@@ -223,6 +232,7 @@ Renderer::Renderer(Window& win) : win(win) {
 
 	terrain_pipeline = std::make_unique<GraphicsPipeline>(dev, terrain_shaders, swapchain->extent, *render_pass, bindings, *terrain->vertex_buffer, GraphicsPipeline::eTERRAIN);
 
+	terrain_pipeline->update(0, *uniform_buffer);
 	terrain_pipeline->update(1, textures[1]);
 
 	for (auto& shader : shaders)
@@ -324,22 +334,10 @@ void Renderer::draw() {
 	/* no secondary command buffers (yet), so contents are passed inline */
 	command_buffer->command_buffer.beginRenderPass(render_pass_info, vk::SubpassContents::eInline);
 
-	command_buffer->bind(*pipeline);
-
-	command_buffer->command_buffer.setViewport(0, viewport);
-	command_buffer->command_buffer.setScissor(0, scissor);
-
-
-	command_buffer->bind(models[0]);
-
-
-	command_buffer->bind(pipeline->layout, pipeline->desc_set);
-
 	auto sz = win.getDimensions();
 
 	const auto p = glm::perspective(glm::radians(90.0f), static_cast<float>(sz.width) / static_cast<float>(sz.height), 0.01f, 2000.0f);
 
-
 	uniform_buffer->upload(UniformData {
 		.view = cam.view(),
 		.proj = p,
@@ -350,12 +348,11 @@ void Renderer::draw() {
 		.tess_edge_size = tess_edge_size,
 	});
 
-	//command_buffer->command_buffer.drawIndexed(models[0]->indices.size(), 10, 0, 0, 0);
-
 	command_buffer->bind(*terrain_pipeline);
 	command_buffer->command_buffer.setViewport(0, viewport);
 	command_buffer->command_buffer.setScissor(0, scissor);
 
+	command_buffer->bind(terrain_pipeline->layout, terrain_pipeline->desc_set);
 	command_buffer->bind(terrain.get());
 	command_buffer->command_buffer.drawIndexed(terrain->indices.size(), 1, 0, 0, 0);
 

assets/shaders/terrain.frag

@@ -23,5 +23,5 @@ void main() {
 	float r = length(light_pos-pos);
 	float t = clamp(dot(L, norm), 0.0, 1.0) * 20.0/(r*r);
 
-	FragColor = vec4(vec3(t * 0.8) + vec3(0.2, 0.0, 0.1), 1.0);
+	FragColor = vec4(norm * texture(tex, texCoord).xyz + t, 1.0);
 }

assets/shaders/terrain.tesc

@@ -1,4 +1,5 @@
 #version 450 core
+#extension GL_EXT_debug_printf : enable
 
 layout (set = 0, binding = 0) uniform Matrices {
 	mat4 view;
@@ -25,42 +26,41 @@ layout (location = 2) out vec3 _pos[4];
 
 float screen_space_tess(vec4 p0, vec4 p1) {
 	/* calc midpoint + distance btw the two points */
-	vec4 mid = (p0+p1) * 0.5;
+	vec4 midp = 0.5*(p0+p1);
 	float r = distance(p0, p1) / 2.0;
 
-	vec4 v0 = view * mid;
+	vec4 v0 = view * midp;
 
-	/* projevt into clip spaace */
-	vec4 clip0 = proj  * (v0 - vec4(r, 0.0, 0.0, 0.0));
-	vec4 clip1 = proj  * (v0 + vec4(r, 0.0, 0.0, 0.0));
+	/* project into clip spaace */
+	vec4 clip0 = proj  * (v0 - vec4(r, vec3(0.0)));
+	vec4 clip1 = proj  * (v0 + vec4(r, vec3(0.0)));
 
 	clip0 /= clip0.w;
 	clip1 /= clip1.w;
 
 	/* convert to viewport coords */
-	clip0.xy * viewport;
-	clip1.xy * viewport;
+	clip0.xy *= viewport;
+	clip1.xy *= viewport;
 
-	return clamp(distance(clip0, clip0) / tess_edge_size * tess_factor, 1.0, 64.0);
+	return clamp(distance(clip0, clip1) / tess_edge_size * tess_factor, 1.0, 64.0);
 }
 
 void main() {
 
 	if(gl_InvocationID == 0) {
-		/*
 		gl_TessLevelOuter[0] = screen_space_tess(gl_in[3].gl_Position, gl_in[0].gl_Position);
 		gl_TessLevelOuter[1] = screen_space_tess(gl_in[0].gl_Position, gl_in[1].gl_Position);
 		gl_TessLevelOuter[2] = screen_space_tess(gl_in[1].gl_Position, gl_in[2].gl_Position);
 		gl_TessLevelOuter[3] = screen_space_tess(gl_in[2].gl_Position, gl_in[3].gl_Position);
 		gl_TessLevelInner[0] = mix(gl_TessLevelOuter[0], gl_TessLevelOuter[3], 0.5);
-		gl_TessLevelInner[1] = mix(gl_TessLevelOuter[2], gl_TessLevelOuter[1], 0.5);*/
+		gl_TessLevelInner[1] = mix(gl_TessLevelOuter[2], gl_TessLevelOuter[1], 0.5);
 		
-		gl_TessLevelOuter[0] = tess_factor;
+		/*gl_TessLevelOuter[0] = tess_factor;
 		gl_TessLevelOuter[1] = tess_factor;
 		gl_TessLevelOuter[2] = tess_factor;
 		gl_TessLevelOuter[3] = tess_factor;
 		gl_TessLevelInner[0] = mix(gl_TessLevelOuter[0], gl_TessLevelOuter[3], 0.5);
-		gl_TessLevelInner[1] = mix(gl_TessLevelOuter[2], gl_TessLevelOuter[1], 0.5);
+		gl_TessLevelInner[1] = mix(gl_TessLevelOuter[2], gl_TessLevelOuter[1], 0.5);*/
 	}
 
 	gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;

assets/shaders/terrain.tese

@@ -40,7 +40,7 @@ void main() {
 	vec4 pos2 = mix(gl_in[3].gl_Position, gl_in[2].gl_Position, gl_TessCoord.x);
 
 	vec4 fpos = mix(pos1, pos2, gl_TessCoord.y);
-	fpos.y += 5.0 * textureLod(heightmap, _texCoord, 0.0).r + cos(fpos.x*fpos.y);
+	fpos.y += 15.0 * texture(heightmap, _texCoord).r; //+ cos(fpos.x*fpos.y);
 
 	_pos = fpos.xyz;
 	gl_Position = proj * view * fpos;