终于是画出来了。

vulkan/FaceApp.cpp

@@ -304,15 +304,15 @@ void FaceApp::create_face_pipelines()
 	vertex_input_attributes.push_back(viaPos);
 
 	VkVertexInputAttributeDescription viaUv{};
-	viaUv.location = 0;
-	viaUv.binding = 1;
+	viaUv.location = 1;
+	viaUv.binding = 0;
 	viaUv.format = VK_FORMAT_R32G32_SFLOAT;
 	viaUv.offset = offsetof(TextureLoadingVertexStructure, uv);
 	vertex_input_attributes.push_back(viaUv);
 
 	VkVertexInputAttributeDescription viaNormal{};
-	viaNormal.location = 0;
-	viaNormal.binding = 2;
+	viaNormal.location = 2;
+	viaNormal.binding = 0;
 	viaNormal.format = VK_FORMAT_R32G32B32_SFLOAT;
 	viaNormal.offset = offsetof(TextureLoadingVertexStructure, normal);
 	vertex_input_attributes.push_back(viaNormal);
@@ -355,8 +355,8 @@ void FaceApp::setup_descriptor_pool()
 	descriptor_pool_size.descriptorCount = 6;
 
 	VkDescriptorPoolSize descriptor_pool_image_size{};
-	descriptor_pool_size.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
-	descriptor_pool_size.descriptorCount = 6;
+	descriptor_pool_image_size.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+	descriptor_pool_image_size.descriptorCount = 6;
 
 
 	std::vector<VkDescriptorPoolSize> pool_sizes;
@@ -388,7 +388,7 @@ void FaceApp::setup_descriptor_set_layout()
 	VkDescriptorSetLayoutBinding set_layout_binding_fragment{};
 	set_layout_binding_fragment.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
 	set_layout_binding_fragment.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT;
-	set_layout_binding_fragment.binding = 2;
+	set_layout_binding_fragment.binding = 1;
 	set_layout_binding_fragment.descriptorCount = 1;
 
 	std::vector<VkDescriptorSetLayoutBinding> set_layout_bindings{ set_layout_binding_vertex , set_layout_binding_fragment};
@@ -408,9 +408,9 @@ void FaceApp::setup_descriptor_set_layout()
 	pipeline_layout_create_info.pSetLayouts = &m_descriptorSetLayout;
 
 	VkPushConstantRange pushConstantRange{};
-	pushConstantRange.stageFlags = VK_SHADER_STAGE_VERTEX_BIT; // 只在片段着色器中使用
+	pushConstantRange.stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
 	pushConstantRange.offset = 0;
-	pushConstantRange.size = sizeof(float); // 或者 sizeof(PushConstants)
+	pushConstantRange.size = sizeof(float);
 
 	pipeline_layout_create_info.pushConstantRangeCount = 1;
 	pipeline_layout_create_info.pPushConstantRanges = &pushConstantRange;
@@ -436,9 +436,9 @@ void FaceApp::setup_descriptor_set()
 
 
 	VkDescriptorImageInfo image_descriptor;
-	image_descriptor.imageView = tex_demo0.view;                // The image's view (images are never directly accessed by the shader, but rather through views defining subresources)
-	image_descriptor.sampler = tex_demo0.sampler;             // The sampler (Telling the pipeline how to sample the texture, including repeat, border, etc.)
-	image_descriptor.imageLayout = tex_demo0.image_layout;        // The current layout of the image (Note: Should always fit the actual use, e.g. shader read)
+	image_descriptor.imageView = tex_demo0.view;                
+	image_descriptor.sampler = tex_demo0.sampler;             
+	image_descriptor.imageLayout = tex_demo0.image_layout;        
 
 	VkWriteDescriptorSet write_descriptor_set_uniform{};
 	write_descriptor_set_uniform.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
@@ -472,6 +472,8 @@ void FaceApp::render(VkCommandBuffer commandBuffer)
 	vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_pipelineLayout, 0, 1, &m_descriptor_set, 0, NULL);
 	vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_graphicsPipeline);
 
+	vkCmdPushConstants(commandBuffer, m_pipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(float), &myFloatValue);
+
 	VkDeviceSize offsets[1] = { 0 };
 	VkBuffer vertexBuffers[] = { m_vertexBuffer };
 	vkCmdBindVertexBuffers(commandBuffer, 0, 1, vertexBuffers, offsets);
@@ -536,7 +538,7 @@ void FaceApp::createVertexBuffer()
     VkDeviceSize vertexBufferSize = sizeof(TextureLoadingVertexStructure) * obj_vertices.size();
     VkDeviceSize indexBufferSize = sizeof(uint32_t) * obj_indices.size();
 
-    // 创建顶点缓冲区（设备本地，用于渲染）
+
     VkBufferCreateInfo bufferInfo = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO };
     bufferInfo.size = vertexBufferSize;
     bufferInfo.usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
@@ -547,13 +549,13 @@ void FaceApp::createVertexBuffer()
 
     vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &m_vertexBuffer, &m_vertexBufferAllocation, nullptr);
 
-    // 创建暂存缓冲区（CPU可见，用于上传数据）
+
     bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
     allocInfo.usage = VMA_MEMORY_USAGE_CPU_TO_GPU;
 
     vmaCreateBuffer(allocator, &bufferInfo, &allocInfo, &m_stagingBuffer, &m_stagingBufferAllocation, nullptr);
 
-    // 创建索引缓冲区
+
     bufferInfo.size = indexBufferSize;
     bufferInfo.usage = VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT;
 	allocInfo.usage =  VMA_MEMORY_USAGE_GPU_ONLY;
@@ -563,16 +565,13 @@ void FaceApp::createVertexBuffer()
 
 
 void FaceApp::uploadVertexData() {
-	// 上传顶点数据
 	void* data;
 	vmaMapMemory(allocator, m_stagingBufferAllocation, &data);
 	memcpy(data, obj_vertices.data(), sizeof(TextureLoadingVertexStructure) * obj_vertices.size());
 	vmaUnmapMemory(allocator, m_stagingBufferAllocation);
 
-	// 复制到设备内存
 	copyBuffer(m_stagingBuffer, m_vertexBuffer, sizeof(TextureLoadingVertexStructure) * obj_vertices.size());
 
-	// 上传索引数据（如果需要暂存缓冲区，可以创建另一个）
 	vmaMapMemory(allocator, m_stagingBufferAllocation, &data);
 	memcpy(data, obj_indices.data(), sizeof(uint32_t) * obj_indices.size());
 	vmaUnmapMemory(allocator, m_stagingBufferAllocation);

vulkan/FaceApp.h

@@ -99,6 +99,8 @@ private:
 
     Texture tex_demo0 = {0};
     bool faceAppInited = false;
+
+    float myFloatValue = 1.5f;
 };
 
 #endif