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implement reflection maps

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This commit is contained in:
lightling 2022-04-03 19:13:57 -04:00
parent eeea33802a
commit c1946480fc
Signed by: lightling
GPG key ID: 016F11E0AA296B67
5 changed files with 42 additions and 12 deletions
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30
Game.cpp
View file

@ -99,22 +99,41 @@ void Game::LoadTextures()
sampDesc.MaxLOD = D3D11_FLOAT32_MAX;
device->CreateSamplerState(&sampDesc, sampler.GetAddressOf());
demoCubemap = CreateCubemap(
device,
context,
L"Assets/Textures/Skies/planets/right.png",
L"Assets/Textures/Skies/planets/left.png",
L"Assets/Textures/Skies/planets/up.png",
L"Assets/Textures/Skies/planets/down.png",
L"Assets/Textures/Skies/planets/front.png",
L"Assets/Textures/Skies/planets/back.png"
);
materials[0]->PushSampler("BasicSampler", sampler);
materials[0]->PushTexture(TEXTYPE_REFLECTION, demoCubemap);
materials[0]->hasReflectionMap = true;
materials[0]->LoadTexture(L"Assets/Textures/HQGame/structure-endgame-deepfloor_albedo.png", TEXTYPE_ALBEDO, device.Get(), context.Get());
materials[0]->LoadTexture(L"Assets/Textures/HQGame/structure-endgame-deepfloor_specular.png", TEXTYPE_SPECULAR, device.Get(), context.Get());
materials[0]->LoadTexture(L"Assets/Textures/HQGame/structure-endgame-deepfloor_emissive.png", TEXTYPE_EMISSIVE, device.Get(), context.Get());
materials[1]->PushSampler("BasicSampler", sampler);
materials[1]->PushTexture(TEXTYPE_REFLECTION, demoCubemap);
materials[1]->hasReflectionMap = true;
materials[1]->LoadTexture(L"Assets/Textures/WithNormals/cobblestone.png", TEXTYPE_ALBEDO, device.Get(), context.Get());
materials[1]->LoadTexture(L"Assets/Textures/WithNormals/cobblestone_specular.png", TEXTYPE_SPECULAR, device.Get(), context.Get());
materials[1]->LoadTexture(L"Assets/Textures/WithNormals/cobblestone_normals.png", TEXTYPE_NORMAL, device.Get(), context.Get());
materials[2]->PushSampler("BasicSampler", sampler);
materials[2]->PushTexture(TEXTYPE_REFLECTION, demoCubemap);
materials[2]->hasReflectionMap = true;
materials[2]->LoadTexture(L"Assets/Textures/WithNormals/rock.png", TEXTYPE_ALBEDO, device.Get(), context.Get());
materials[2]->LoadTexture(L"Assets/Textures/WithNormals/rock_specular.png", TEXTYPE_SPECULAR, device.Get(), context.Get());
materials[2]->LoadTexture(L"Assets/Textures/WithNormals/rock_normals.png", TEXTYPE_NORMAL, device.Get(), context.Get());
materials[3]->PushSampler("BasicSampler", sampler);
materials[3]->PushTexture(TEXTYPE_REFLECTION, demoCubemap);
materials[3]->hasReflectionMap = true;
materials[3]->LoadTexture(L"Assets/Textures/WithNormals/cushion.png", TEXTYPE_ALBEDO, device.Get(), context.Get());
materials[3]->LoadTexture(L"Assets/Textures/WithNormals/cushion_specular.png", TEXTYPE_SPECULAR, device.Get(), context.Get());
materials[3]->LoadTexture(L"Assets/Textures/WithNormals/cushion_normals.png", TEXTYPE_NORMAL, device.Get(), context.Get());
@ -189,16 +208,7 @@ void Game::CreateBasicGeometry()
shapes[0],
std::make_shared<SimpleVertexShader>(device, context, GetFullPathTo_Wide(L"SkyboxVertexShader.cso").c_str()),
std::make_shared<SimplePixelShader>(device, context, GetFullPathTo_Wide(L"SkyboxPixelShader.cso").c_str()),
CreateCubemap(
device,
context,
L"Assets/Textures/Skies/planets/right.png",
L"Assets/Textures/Skies/planets/left.png",
L"Assets/Textures/Skies/planets/up.png",
L"Assets/Textures/Skies/planets/down.png",
L"Assets/Textures/Skies/planets/front.png",
L"Assets/Textures/Skies/planets/back.png"
),
demoCubemap,
sampler,
device
);

1
Game.h
View file

@ -62,6 +62,7 @@ private:
// A9 Normalmaps & Cubemaps
std::shared_ptr<Sky> skybox;
Microsoft::WRL::ComPtr<ID3D11SamplerState> sampler;
Microsoft::WRL::ComPtr<ID3D11ShaderResourceView> demoCubemap;
Microsoft::WRL::ComPtr<ID3D11Buffer> constantBufferVS;
};

10
Helpers.hlsli
View file

@ -1,6 +1,9 @@
#ifndef __SHADER_HELPERS__
#define __SHADER_HELPERS__
// from environment map demo
static const float F0_NON_METAL = 0.04f;
// gets view vector, needed once per shader
float3 getView(float3 cameraPosition, float3 pixelWorldPosition)
{
@ -44,4 +47,11 @@ float getAttenuation(float3 pointPosition, float3 worldPosition, float3 range)
return attn * attn;
}
// from environment map demo
// gets fresnel (Schlick approx.): f0 + (1-f0)(1 - (n dot v))^5
float getFresnel(float3 normal, float3 view, float specularValue)
{
return specularValue + (1 - specularValue) * pow(1 - saturate(dot(normal, view)), 5);
}
#endif

2
Material.h
View file

@ -51,11 +51,11 @@ public:
void PushSampler(std::string _name, Microsoft::WRL::ComPtr<ID3D11SamplerState> _sampler);
void PushTexture(std::string _name, Microsoft::WRL::ComPtr<ID3D11ShaderResourceView> _texture);
private:
bool hasEmissiveMap;
bool hasSpecularMap;
bool hasNormalMap;
bool hasReflectionMap;
private:
DirectX::XMFLOAT3 tint;
float roughness;
float emitAmount;

11
SimplePixelShader.hlsl
View file

@ -74,5 +74,14 @@ float4 main(VertexToPixel input) : SV_TARGET
}
}
return float4(light + (emit * emitAmount), albedo.a);
float3 final = float3(light + (emit * emitAmount));
if (hasReflectionMap > 0)
{
float3 reflVec = getReflection(view, input.normal);
float3 reflCol = Reflection.Sample(BasicSampler, reflVec).rgba;
final = lerp(final, reflCol, getFresnel(input.normal, view, F0_NON_METAL));
}
return float4(final, albedo.a);
}