Add ShadowMapingOnmi for Android

Android/app/src/main/cpp/examples/08_ShadowMappingOnmi/OnmiCamera.cpp

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+//
+// Created by wjl on 2021/8/16.
+//
+
+#include "OnmiCamera.h"
+
+#include <glm/gtc/matrix_transform.hpp>
+
+BEGIN_NAMESPACE(VulkanEngine)
+
+void OnmiCamera::prepareUniformBuffers() {
+    VK_CHECK_RESULT(m_context->vulkanDevice->createBuffer(
+            VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
+            VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
+            &m_uniformBuffer, sizeof(m_mvp), &m_mvp));
+    VK_CHECK_RESULT(m_uniformBuffer.map());
+    updateUniformBuffers();
+}
+
+void OnmiCamera::updateUniformBuffers() {
+    m_mvp.projection = glm::perspective((float)(M_PI / 2.0), 1.0f, 0.1f, 64.0f);
+    m_mvp.view = glm::mat4(1.0f);
+    m_mvp.model = glm::translate(glm::mat4(1.0f), glm::vec3(-m_mvp.lightpos.x, -m_mvp.lightpos.y, -m_mvp.lightpos.z));
+    memcpy(m_uniformBuffer.mapped, &m_mvp, sizeof(m_mvp));
+}
+
+END_NAMESPACE(VulkanEngine)

Android/app/src/main/cpp/examples/08_ShadowMappingOnmi/OnmiCamera.h

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+//
+// Created by wjl on 2021/8/16.
+//
+
+#ifndef LEARNVULKAN_ONMICAMERA_H
+#define LEARNVULKAN_ONMICAMERA_H
+
+#include "VulkanBuffer.h"
+
+BEGIN_NAMESPACE(VulkanEngine)
+
+class OnmiCamera : public VulkanBuffer {
+public:
+    struct {
+        glm::mat4 projection;
+        glm::mat4 view;
+        glm::mat4 model;
+        glm::vec4 lightpos;
+    }m_mvp;
+public:
+    OnmiCamera() = default;
+
+    virtual void prepareUniformBuffers() override;
+    virtual void updateUniformBuffers() override ;
+};
+
+END_NAMESPACE(VulkanEngine)
+
+#endif //LEARNVULKAN_ONMICAMERA_H

Android/app/src/main/cpp/examples/08_ShadowMappingOnmi/ReflectParaBuffer.cxx

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+//
+// Created by wjl on 21-4-10.
+//
+
+#include "ReflectParaBuffer.h"
+
+BEGIN_NAMESPACE(VulkanEngine)
+
+void ReflectParaBuffer::reflect() {
+    if(getReflect() <= 0.f){
+        setReflect(1.f);
+    }
+    else{
+        setReflect(0.f);
+    }
+}
+
+void ReflectParaBuffer::prepareUniformBuffers() {
+    VK_CHECK_RESULT(m_context->vulkanDevice->createBuffer(
+            VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
+            VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
+            &m_uniformBuffer, sizeof(m_para), &m_para));
+    VK_CHECK_RESULT(m_uniformBuffer.map());
+    updateUniformBuffers();
+}
+
+void ReflectParaBuffer::updateUniformBuffers() {
+    memcpy(m_uniformBuffer.mapped, &m_para, sizeof(m_para));
+}
+
+END_NAMESPACE(VulkanEngine)

Android/app/src/main/cpp/examples/08_ShadowMappingOnmi/ReflectParaBuffer.h

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+//
+// Created by wjl on 21-4-10.
+//
+
+#ifndef LEARNVULKAN_REFLECTPARABUFFER_H
+#define LEARNVULKAN_REFLECTPARABUFFER_H
+
+#include "VulkanBuffer.h"
+
+BEGIN_NAMESPACE(VulkanEngine)
+
+class ReflectParaBuffer : public VulkanBuffer {
+public:
+    struct ReflectPara{
+        glm::vec4 para;
+    } m_para;
+
+public:
+    ReflectParaBuffer() = default;
+    ~ReflectParaBuffer() = default;
+
+    void setReflect(float value) { m_para.para[0] = value; }
+
+    float getReflect() { return m_para.para[0];}
+
+    void reflect();
+
+    virtual void prepareUniformBuffers() override;
+    virtual void updateUniformBuffers() override ;
+};
+
+END_NAMESPACE(VulkanEngine)
+
+#endif //LEARNVULKAN_REFLECTPARABUFFER_H