[D3D] HeightMap, Normal, Mesh

vector·2025년 11월 21일
DirectX11(3D)

1. HeightMap

  • 사용할 리소스 선택 (비트 수준을 보고 이 비트에 맞게 피싱)
  • 우선은 간단하게 CPU에서 계산하는 방식으로 설계
#include "pch.h"
#include "07. HeightMapDemo.h"
#include "GeometryHelper.h"
#include "Camera.h"
#include "GameObject.h"
#include "CameraScript.h"
#include "Transform.h"
#include "Texture.h"

void HeightMapDemo::Init()
{
	_shader = make_shared<Shader>(L"06.Terrain.fx");

	// Texture
	_heightMap = RESOURCES->Load<Texture>(L"Height", L"../Resources/Textures/Terrain/height.png");
	_texture = RESOURCES->Load<Texture>(L"Grass", L"../Resources/Textures/Terrain/grass.jpg");

	const int32 width = _heightMap->GetSize().x;
	const int32 height = _heightMap->GetSize().y;

	const DirectX::ScratchImage& info = _heightMap->GetInfo();
	uint8* pixelBuffer = info.GetPixels();

	// Object
	_geometry = make_shared<Geometry<VertexTextureData>>();
	GeometryHelper::CreateGrid(_geometry, width, height);


	// CPU
	// 좌표를 인위적으로 수정
	{
		// const를 빼주기 위한 cast
		vector<VertexTextureData>& v = const_cast<vector<VertexTextureData>&>(_geometry->GetVertices());

		for (int32 z = 0; z < height; z++)
		{
			for (int32 x = 0; x < width; x++)
			{
				int32 idx = width * z + x;

				uint8 height = pixelBuffer[idx] / 255.f * 25.f;
				v[idx].position.y = height; // 높이 보정
			}
		}
	}


	_vertexBuffer = make_shared<VertexBuffer>();
	_vertexBuffer->Create(_geometry->GetVertices());

	_indexBuffer = make_shared<IndexBuffer>();
	_indexBuffer->Create(_geometry->GetIndices());

	// Camera
	_camera = make_shared<GameObject>();
	_camera->GetOrAddTransform();
	_camera->AddComponent(make_shared<Camera>());
	_camera->AddComponent(make_shared<CameraScript>());
	_camera->GetTransform()->SetPosition(Vec3(0, 5.f, 0.f));
	_camera->GetTransform()->SetRotation(Vec3(25.f, 0, 0.f));



	//RESOURCES->Get<Texture>(L"Veigar")->GetComPtr();
}

void HeightMapDemo::Update()
{
	_camera->Update();
}

void HeightMapDemo::Render()
{
	// 
	_shader->GetMatrix("world")->SetMatrix((float*)&_world);
	_shader->GetMatrix("view")->SetMatrix((float*)&Camera::S_MatView);
	_shader->GetMatrix("projection")->SetMatrix((float*)&Camera::S_MatProjection);
	_shader->GetSRV("Texture0")->SetResource(_texture->GetComPtr().Get());

	enum ADDRESS_VALUE
	{
		ADDRESS_WRAP = 0,
		ADDRESS_MIRROR = 1,
		ADDRESS_CLAMP = 2,
		ADDRESS_BORDER = 3
	};

	_shader->GetScalar("Address")->SetInt(ADDRESS_BORDER);


	uint32 stride = _vertexBuffer->GetStride();
	uint32 offset = _vertexBuffer->GetOffset();

	DC->IASetVertexBuffers(0, 1, _vertexBuffer->GetComPtr().GetAddressOf(), &stride, &offset);

	DC->IASetIndexBuffer(_indexBuffer->GetComPtr().Get(), DXGI_FORMAT_R32_UINT, 0);


	//_shader->Draw(0, 0, 3);
	_shader->DrawIndexed(0, 0, _indexBuffer->GetCount(), 0, 0);
}

결과

2. Normal

  • 광원과의 각도를 이용해서 빛에 대한 연산을 할 때 필요
  • 노멀백터(표면에서 직각으로 쏘는 방향)와 빛 방향(빛이 물체에 쏘는 방향)의 반대방향을 내적하여 빛의 세기를 계산
  • 방향값은 normalize를 통해 1인 벡터이기에 Cos값에 따라 달라짐
  • 각도가 90도이면, cos90은 최소값이 되고, cos0은 최대값이 된다.
  • 큐브 : 각 면에 따라 노멀 벡터 존재
  • 구체 : 중심에서 해당 위치까지의 벡터가 노멀벡터
  • 노멀벡터는 스케일과 회전값에만 영향을 받기때문에 TransformNormal을 사용
  • normal값도 사용하는 데이터인 VertexTextureNormalData구조체를 사용해서 GeometryHelper에서 코드 수정

GeometryHelper.cpp

void GeometryHelper::CreateQuad(shared_ptr<Geometry<VertexTextureNormalData>> geometry)
{
	vector<VertexTextureNormalData> vtx;
	vtx.resize(4);

	vtx[0].position = Vec3(-0.5f, -0.5f, 0.f);
	vtx[0].uv = Vec2(0.f, 1.f);
	vtx[0].normal = Vec3(0.f, 0.f, -1.f);
	vtx[1].position = Vec3(-0.5f, 0.5f, 0.f);
	vtx[1].uv = Vec2(0.f, 0.f);
	vtx[1].normal = Vec3(0.f, 0.f, -1.f);
	vtx[2].position = Vec3(0.5f, -0.5f, 0.f);
	vtx[2].uv = Vec2(1.f, 1.f);
	vtx[2].normal = Vec3(0.f, 0.f, -1.f);
	vtx[3].position = Vec3(0.5f, 0.5f, 0.f);
	vtx[3].uv = Vec2(1.f, 0.f);
	vtx[2].normal = Vec3(0.f, 0.f, -1.f);
	geometry->SetVertices(vtx);

	vector<uint32> idx = { 0, 1, 2, 2, 1, 3 };
	geometry->SetIndices(idx);
}

void GeometryHelper::CreateCube(shared_ptr<Geometry<VertexTextureNormalData>> geometry)
{
	float w2 = 0.5f;
	float h2 = 0.5f;
	float d2 = 0.5f;

	vector<VertexTextureNormalData> vtx(24);

	// 앞면
	vtx[0]  = VertexTextureNormalData{Vec3(-w2, -h2, -d2), Vec2(0.0f, 1.0f), Vec3(0.0f, 0.0f, -1.0f)};
	vtx[1]  = VertexTextureNormalData{Vec3(-w2, +h2, -d2), Vec2(0.0f, 0.0f), Vec3(0.0f, 0.0f, -1.0f)};
	vtx[2]  = VertexTextureNormalData{Vec3(+w2, +h2, -d2), Vec2(1.0f, 0.0f), Vec3(0.0f, 0.0f, -1.0f)};
	vtx[3]  = VertexTextureNormalData{Vec3(+w2, -h2, -d2), Vec2(1.0f, 1.0f), Vec3(0.0f, 0.0f, -1.0f)};
	// 뒷면
	vtx[4]  = VertexTextureNormalData{Vec3(-w2, -h2, +d2), Vec2(1.0f, 1.0f), Vec3(0.0f, 0.0f, 1.0f)};
	vtx[5]  = VertexTextureNormalData{Vec3(+w2, -h2, +d2), Vec2(0.0f, 1.0f), Vec3(0.0f, 0.0f, 1.0f)};
	vtx[6]  = VertexTextureNormalData{Vec3(+w2, +h2, +d2), Vec2(0.0f, 0.0f), Vec3(0.0f, 0.0f, 1.0f)};
	vtx[7]  = VertexTextureNormalData{Vec3(-w2, +h2, +d2), Vec2(1.0f, 0.0f), Vec3(0.0f, 0.0f, 1.0f)};
	// 윗면																						 
	vtx[8]  = VertexTextureNormalData{Vec3(-w2, +h2, -d2), Vec2(0.0f, 1.0f), Vec3(0.0f, 1.0f, 0.0f)};
	vtx[9]  = VertexTextureNormalData{Vec3(-w2, +h2, +d2), Vec2(0.0f, 0.0f), Vec3(0.0f, 1.0f, 0.0f)};
	vtx[10] = VertexTextureNormalData{Vec3(+w2, +h2, +d2), Vec2(1.0f, 0.0f), Vec3(0.0f, 1.0f, 0.0f)};
	vtx[11] = VertexTextureNormalData{Vec3(+w2, +h2, -d2), Vec2(1.0f, 1.0f), Vec3(0.0f, 1.0f, 0.0f)};
	// 아랫면						   
	vtx[12] = VertexTextureNormalData{Vec3(-w2, -h2, -d2), Vec2(1.0f, 1.0f), Vec3(0.0f, -1.0f, 0.0f)};
	vtx[13] = VertexTextureNormalData{Vec3(+w2, -h2, -d2), Vec2(0.0f, 1.0f), Vec3(0.0f, -1.0f, 0.0f)};
	vtx[14] = VertexTextureNormalData{Vec3(+w2, -h2, +d2), Vec2(0.0f, 0.0f), Vec3(0.0f, -1.0f, 0.0f)};
	vtx[15] = VertexTextureNormalData{Vec3(-w2, -h2, +d2), Vec2(1.0f, 0.0f), Vec3(0.0f, -1.0f, 0.0f)};
	// 왼쪽면						   																
	vtx[16] = VertexTextureNormalData{Vec3(-w2, -h2, +d2), Vec2(0.0f, 1.0f), Vec3(-1.0f, 0.0f, 0.0f)};
	vtx[17] = VertexTextureNormalData{Vec3(-w2, +h2, +d2), Vec2(0.0f, 0.0f), Vec3(-1.0f, 0.0f, 0.0f)};
	vtx[18] = VertexTextureNormalData{Vec3(-w2, +h2, -d2), Vec2(1.0f, 0.0f), Vec3(-1.0f, 0.0f, 0.0f)};
	vtx[19] = VertexTextureNormalData{Vec3(-w2, -h2, -d2), Vec2(1.0f, 1.0f), Vec3(-1.0f, 0.0f, 0.0f)};
	// 오른쪽면						  
	vtx[20] = VertexTextureNormalData{Vec3(+w2, -h2, -d2), Vec2(0.0f, 1.0f), Vec3(1.0f, 0.0f, 0.0f)};
	vtx[21] = VertexTextureNormalData{Vec3(+w2, +h2, -d2), Vec2(0.0f, 0.0f), Vec3(1.0f, 0.0f, 0.0f)};
	vtx[22] = VertexTextureNormalData{Vec3(+w2, +h2, +d2), Vec2(1.0f, 0.0f), Vec3(1.0f, 0.0f, 0.0f)};
	vtx[23] = VertexTextureNormalData{Vec3(+w2, -h2, +d2), Vec2(1.0f, 1.0f), Vec3(1.0f, 0.0f, 0.0f)};

	geometry->SetVertices(vtx);

	vector<uint32> idx(36);

	// 앞면
	idx[0] = 0; idx[1] = 1; idx[2] = 2;
	idx[3] = 0; idx[4] = 2; idx[5] = 3;
	// 뒷면
	idx[6] = 4; idx[7] = 5; idx[8] = 6;
	idx[9] = 4; idx[10] = 6; idx[11] = 7;
	// 윗면
	idx[12] = 8; idx[13] = 9; idx[14] = 10;
	idx[15] = 8; idx[16] = 10; idx[17] = 11;
	// 아랫면
	idx[18] = 12; idx[19] = 13; idx[20] = 14;
	idx[21] = 12; idx[22] = 14; idx[23] = 15;
	// 왼쪽면
	idx[24] = 16; idx[25] = 17; idx[26] = 18;
	idx[27] = 16; idx[28] = 18; idx[29] = 19;
	// 오른쪽면
	idx[30] = 20; idx[31] = 21; idx[32] = 22;
	idx[33] = 20; idx[34] = 22; idx[35] = 23;

	geometry->SetIndices(idx);
}

void GeometryHelper::CreateGrid(shared_ptr<Geometry<VertexTextureNormalData>> geometry, int32 sizeX, int32 sizeZ)
{
	vector<VertexTextureNormalData> vtx;

	for (int32 z = 0; z < sizeZ + 1; z++)
	{
		for (int32 x = 0; x < sizeX + 1; x++)
		{
			VertexTextureNormalData v;
			v.position = Vec3(static_cast<float>(x), 0, static_cast<float>(z));
			v.uv = Vec2(static_cast<float>(x), static_cast<float>(sizeZ - z));
			v.normal = Vec3(0.f, 1.f, 0.f);

			vtx.push_back(v);
		}
	}

	geometry->SetVertices(vtx);

	vector<uint32> idx;

	for (int32 z = 0; z < sizeZ; z++)
	{
		for (int32 x = 0; x < sizeX; x++)
		{
			//  [0]
			//   |	\
			//  [2] - [1]
			idx.push_back((sizeX + 1) * (z + 1) + (x));
			idx.push_back((sizeX + 1) * (z)+(x + 1));
			idx.push_back((sizeX + 1) * (z)+(x));
			//  [1] - [2]
			//   	\  |
			//		  [0]
			idx.push_back((sizeX + 1) * (z)+(x + 1));
			idx.push_back((sizeX + 1) * (z + 1) + (x));
			idx.push_back((sizeX + 1) * (z + 1) + (x + 1));
		}
	}

	geometry->SetIndices(idx);
}

void GeometryHelper::CreateSphere(shared_ptr<Geometry<VertexTextureNormalData>> geometry)
{
	float radius = 0.5f; // 구의 반지름
	uint32 stackCount = 20; // 가로 분할
	uint32 sliceCount = 20; // 세로 분할

	vector<VertexTextureNormalData> vtx;

	VertexTextureNormalData v;

	// 북극
	v.position = Vec3(0.0f, radius, 0.0f);
	v.uv = Vec2(0.5f, 0.0f);
	v.normal = v.position;
	v.normal.Normalize();
	vtx.push_back(v);

	float stackAngle = XM_PI / stackCount;
	float sliceAngle = XM_2PI / sliceCount;

	float deltaU = 1.f / static_cast<float>(sliceCount);
	float deltaV = 1.f / static_cast<float>(stackCount);

	// 고리마다 돌면서 정점을 계산한다 (북극/남극 단일점은 고리가 X)
	for (uint32 y = 1; y <= stackCount - 1; ++y)
	{
		float phi = y * stackAngle;

		// 고리에 위치한 정점
		for (uint32 x = 0; x <= sliceCount; ++x)
		{
			float theta = x * sliceAngle;

			v.position.x = radius * sinf(phi) * cosf(theta);
			v.position.y = radius * cosf(phi);
			v.position.z = radius * sinf(phi) * sinf(theta);

			v.uv = Vec2(deltaU * x, deltaV * y);

			v.normal = v.position;
			v.normal.Normalize();

			vtx.push_back(v);
		}
	}

	// 남극
	v.position = Vec3(0.0f, -radius, 0.0f);
	v.uv = Vec2(0.5f, 1.0f);
	v.normal = v.position;
	v.normal.Normalize();
	vtx.push_back(v);

	geometry->SetVertices(vtx);

	vector<uint32> idx(36);

	// 북극 인덱스
	for (uint32 i = 0; i <= sliceCount; ++i)
	{
		//  [0]
		//   |  \
		//  [i+1]-[i+2]
		idx.push_back(0);
		idx.push_back(i + 2);
		idx.push_back(i + 1);
	}

	// 몸통 인덱스
	uint32 ringVertexCount = sliceCount + 1;
	for (uint32 y = 0; y < stackCount - 2; ++y)
	{
		for (uint32 x = 0; x < sliceCount; ++x)
		{
			//  [y, x]-[y, x+1]
			//  |		/
			//  [y+1, x]
			idx.push_back(1 + (y)*ringVertexCount + (x));
			idx.push_back(1 + (y)*ringVertexCount + (x + 1));
			idx.push_back(1 + (y + 1) * ringVertexCount + (x));
			//		 [y, x+1]
			//		 /	  |
			//  [y+1, x]-[y+1, x+1]
			idx.push_back(1 + (y + 1) * ringVertexCount + (x));
			idx.push_back(1 + (y)*ringVertexCount + (x + 1));
			idx.push_back(1 + (y + 1) * ringVertexCount + (x + 1));
		}
	}

	// 남극 인덱스
	uint32 bottomIndex = static_cast<uint32>(vtx.size()) - 1;
	uint32 lastRingStartIndex = bottomIndex - ringVertexCount;
	for (uint32 i = 0; i < sliceCount; ++i)
	{
		//  [last+i]-[last+i+1]
		//  |      /
		//  [bottom]
		idx.push_back(bottomIndex);
		idx.push_back(lastRingStartIndex + i);
		idx.push_back(lastRingStartIndex + i + 1);
	}

	geometry->SetIndices(idx);
}

normal값을 사용하는 쉐이더 추가

Normal.fx

matrix world;
matrix view;
matrix projection;
Texture2D Texture0;
float3 LightDir;

struct VertexInput
{
    float4 position : POSITION;
    float2 uv : TEXCOORD;
    float3 normal : NORMAL;
};

struct VertexOutput
{
    float4 position : SV_POSITION; //SV : System Value
    float2 uv : TEXCOORD;
    float3 normal : NORMAL;
};

VertexOutput VS(VertexInput input)
{
    VertexOutput output;
    output.position = mul(input.position, world);
    output.position = mul(output.position, view);
    output.position = mul(output.position, projection);
    
    
    output.uv = input.uv;
    output.normal = mul(input.normal, (float3x3) world);
    
    return output;
}

// Filter   : 확대/ 축소 시 텍스처 픽셀을 어떻게 보간할 것인지 결정
// Address  : 텍스처 좌표가 0~1 범위를 벗어날 때 어떻게 처리할 것인지 결정
SamplerState Sampler0;


float4 PS(VertexOutput input) : SV_TARGET
{
    float3 normal = normalize(input.normal);
    float3 light = -LightDir;
    
    //return float4(1, 1, 1, 1) * dot(light, normal); // 내적 연산
    
    return Texture0.Sample(Sampler0, input.uv) * dot(light, normal);;
}

RasterizerState FillModeWireframe
{
    FillMode = Wireframe;
};


technique11 T0
{
    pass P0
    {
        SetVertexShader( CompileShader( vs_5_0, VS() ) );
        SetPixelShader( CompileShader( ps_5_0, PS() ) );
    }
    pass P1
    {
        SetRasterizerState(FillModeWireframe);

        SetVertexShader( CompileShader( vs_5_0, VS() ) );
        SetPixelShader( CompileShader( ps_5_0, PS() ) );
    }
}

NormalDemo

#include "pch.h"
#include "08. NormalDemo.h"
#include "GeometryHelper.h"
#include "Camera.h"
#include "GameObject.h"
#include "CameraScript.h"
#include "Transform.h"
#include "Texture.h"

void NormalDemo::Init()
{
	_shader = make_shared<Shader>(L"07.Normal.fx");


	// Object
	_geometry = make_shared<Geometry<VertexTextureNormalData>>();
	//GeometryHelper::CreateCube(_geometry);
	GeometryHelper::CreateSphere(_geometry);

	_vertexBuffer = make_shared<VertexBuffer>();
	_vertexBuffer->Create(_geometry->GetVertices());

	_indexBuffer = make_shared<IndexBuffer>();
	_indexBuffer->Create(_geometry->GetIndices());

	// Camera
	_camera = make_shared<GameObject>();
	_camera->GetOrAddTransform();
	_camera->AddComponent(make_shared<Camera>());
	_camera->AddComponent(make_shared<CameraScript>());
	_camera->GetTransform()->SetPosition(Vec3(0, 0.f, -2.f));
	//_camera->GetTransform()->SetRotation(Vec3(25.f, 0, 0.f));

	// Texture
	_texture = RESOURCES->Load<Texture>(L"Veigar", L"../Resources/Textures/veigar.jpg");

	//RESOURCES->Get<Texture>(L"Veigar")->GetComPtr();
}

void NormalDemo::Update()
{
	_camera->Update();
}

void NormalDemo::Render()
{
	// 
	_shader->GetMatrix("world")->SetMatrix((float*)&_world);
	_shader->GetMatrix("view")->SetMatrix((float*)&Camera::S_MatView);
	_shader->GetMatrix("projection")->SetMatrix((float*)&Camera::S_MatProjection);
	_shader->GetSRV("Texture0")->SetResource(_texture->GetComPtr().Get());
	_shader->GetVector("LightDir")->SetFloatVector((float*)&_lightDir);


	uint32 stride = _vertexBuffer->GetStride();
	uint32 offset = _vertexBuffer->GetOffset();

	DC->IASetVertexBuffers(0, 1, _vertexBuffer->GetComPtr().GetAddressOf(), &stride, &offset);

	DC->IASetIndexBuffer(_indexBuffer->GetComPtr().Get(), DXGI_FORMAT_R32_UINT, 0);


	//_shader->Draw(0, 0, 3);
	_shader->DrawIndexed(0, 0, _indexBuffer->GetCount(), 0, 0);
}

결과

Mesh

  • geometry, vetexBuffer, indexBuffer, world Matrix를 묶어서 Mesh 리소스 만들기
  • 도형을 만든 다음 CreateBuffer()를 통해 버퍼를 초기화하고, 정보를 GPU에 전달

Mesh.h

#pragma once
#include "ResourceBase.h"
#include "Geometry.h"

class Mesh : public ResourceBase
{
	using Super = ResourceBase;

public:
	Mesh();
	virtual ~Mesh();

	void CreateQuad();
	void CreateCube();
	void CreateGrid(int32 sizeX, int32 sizeZ);
	void CreateSphere();

	shared_ptr<VertexBuffer> GetVertexBuffer() { return _vertexBuffer; }
	shared_ptr<IndexBuffer> GetIndexBuffer() { return _indexBuffer; }

private:
	void CreateBuffers();

private:
	// Mesh
	shared_ptr<Geometry<VertexTextureNormalData>> _geometry;
	shared_ptr<VertexBuffer> _vertexBuffer;
	shared_ptr<IndexBuffer> _indexBuffer;
};

Mesh.cpp

#include "pch.h"
#include "Mesh.h"
#include "GeometryHelper.h"

Mesh::Mesh()  : Super(ResourceType::Mesh)
{

}

Mesh::~Mesh()
{

}

void Mesh::CreateQuad()
{
	_geometry = make_shared<Geometry<VertexTextureNormalData>>();
	GeometryHelper::CreateQuad(_geometry);
	CreateBuffers();
}

void Mesh::CreateCube()
{
	_geometry = make_shared<Geometry<VertexTextureNormalData>>();
	GeometryHelper::CreateCube(_geometry);
	CreateBuffers();
}

void Mesh::CreateGrid(int32 sizeX, int32 sizeZ)
{
	_geometry = make_shared<Geometry<VertexTextureNormalData>>();
	GeometryHelper::CreateGrid(_geometry, sizeX, sizeZ);
	CreateBuffers();
}

void Mesh::CreateSphere()
{
	_geometry = make_shared<Geometry<VertexTextureNormalData>>();
	GeometryHelper::CreateSphere(_geometry);
	CreateBuffers();
}

void Mesh::CreateBuffers()
{
	_vertexBuffer = make_shared<VertexBuffer>();
	_vertexBuffer->Create(_geometry->GetVertices());
	_indexBuffer = make_shared<IndexBuffer>();
	_indexBuffer->Create(_geometry->GetIndices());
}

MeshRenderer

  • Demo에서 가지고 있었던 mesh, texture, shader를 가지고 있는 MeshRenderer 생성

MeshRenderer.h

#pragma once
#include "Component.h"

class Mesh;
class Shader;

class MeshRenderer : public Component
{
	using Super = Component;
public:
	MeshRenderer();
	virtual ~MeshRenderer();

	virtual void Update() override;

	void SetMesh(shared_ptr<Mesh> mesh) { _mesh = mesh; }
	void SetTexture(shared_ptr<Texture> texture) { _texture = texture; }
	void SetShader(shared_ptr<Shader> shader) { _shader = shader; }

private:
	shared_ptr<Mesh> _mesh;
	shared_ptr<Texture> _texture;
	shared_ptr<Shader> _shader;
};

MeshRenderer.cpp

#include "pch.h"
#include "MeshRenderer.h"
#include "Camera.h"
#include "Game.h"
#include "Mesh.h"
#include "Shader.h"

MeshRenderer::MeshRenderer() : Super(ComponentType::MeshRenderer)
{

}

MeshRenderer::~MeshRenderer()
{

}

void MeshRenderer::Update()
{
	if (_mesh == nullptr || _texture == nullptr || _shader == nullptr)
		return;

	auto world = GetTransform()->GetWorldMatrix();
	_shader->GetMatrix("World")->SetMatrix((float*)&world);
	
	_shader->GetMatrix("View")->SetMatrix((float*)&Camera::S_MatView);
	_shader->GetMatrix("Projection")->SetMatrix((float*)&Camera::S_MatProjection);
	_shader->GetSRV("Texture0")->SetResource(_texture->GetComPtr().Get());
	
	// TEMP
	Vec3 lightDir = {0.f, 0.f, 1.f};
	_shader->GetVector("LightDir")->SetFloatVector((float*)&lightDir);

	uint32 stride = _mesh->GetVertexBuffer()->GetStride();
	uint32 offset = _mesh->GetVertexBuffer()->GetOffset();

	DC->IASetVertexBuffers(0, 1, _mesh->GetVertexBuffer()->GetComPtr().GetAddressOf(), &stride, &offset);
	DC->IASetIndexBuffer(_mesh->GetIndexBuffer()->GetComPtr().Get(), DXGI_FORMAT_R32_UINT, 0);

	_shader->DrawIndexed(0, 0, _mesh->GetIndexBuffer()->GetCount(), 0, 0);
}

MeshDemo

  • 기존 mesh, shader, texture를 하나의 GameObject 변수로 변경
  • Init()에서 obj에 shader,mesh,texture 생성

MeshDemo.h

#pragma once
#include "IExecute.h"
#include "Geometry.h"

class GameObject;

class MeshDemo : public IExecute
{
public:
	void Init() override;
	void Update() override;
	void Render() override;

	// Object
	shared_ptr<GameObject> _obj;
	// Camera
	shared_ptr<GameObject> _camera;
};

MeshDemo.cpp

#include "pch.h"
#include "09. MeshDemo.h"
#include "GeometryHelper.h"
#include "Camera.h"
#include "GameObject.h"
#include "CameraScript.h"
#include "MeshRenderer.h"
#include "Mesh.h"

void MeshDemo::Init()
{


	// Camera
	_camera = make_shared<GameObject>();
	_camera->GetOrAddTransform();
	_camera->AddComponent(make_shared<Camera>());
	_camera->AddComponent(make_shared<CameraScript>());

	// Object
	_obj = make_shared<GameObject>();
	_obj->GetOrAddTransform();
	_obj->AddComponent(make_shared<MeshRenderer>());
	{
		auto shader = make_shared<Shader>(L"07.Normal.fx");
		_obj->GetMeshRenderer()->SetShader(shader);
	}
	{
		RESOURCES->Init();
		auto mesh = RESOURCES->Get<Mesh>(L"Sphere");
		_obj->GetMeshRenderer()->SetMesh(mesh);
	}
	{
		auto texture = RESOURCES->Load<Texture>(L"Veigar", L"../Resources/Textures/veigar.jpg");
		_obj->GetMeshRenderer()->SetTexture(texture);
	}
}

void MeshDemo::Update()
{
	_camera->Update();
	_obj->Update();
}

void MeshDemo::Render()
{
}

결과

  • 기존과 동일하게 나오면 됨

참고강의

https://www.inflearn.com/courses/lecture?courseId=329791&type=LECTURE&unitId=161124&tab=curriculum&subtitleLanguage=ko

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게임 클라이언트 프로그래머 준비중 (공부 및 기록용)
이전 포스트

[D3D] Texture, Geometry, Sampling

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[D3D] Global Shader

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