(旧Siv3D) ピクセルシェーダでテクスチャを白く点滅させる

https://gyazo.com/7878f59b5180fdfbbf30d4431e12e389

code:s3dkun_blink.cpp

struct CB1

{

float strength;

float reserved1;

float reserved2;

float reserved3;

};

void Main()

{

const String s3dkunBase64Image = L"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";

const Texture texture(Base64::Decode(s3dkunBase64Image));

PixelShader ps(L"white.hlsl");

ConstantBuffer<CB1> cb1;

Graphics::SetBackground(Color(40));

Graphics2D::SetSamplerState(SamplerState::ClampPoint);

Window::Resize(800, 600);

while (System::Update())

{

const int F = System::FrameCount();

Graphics2D::BeginPS(ps);

cb1->strength = Saturate(sin(F / 20.0) * 0.5 + 0.5);

Graphics2D::SetConstant(ShaderStage::Pixel, 1, cb1);

texture(((F / 25) % 2) * texture.width / 2, 0, texture.width / 2, texture.height)

.scale(3)

.draw(100, 100);

Graphics2D::EndPS();

ClearPrint();

Println(L"strength = ", cb1->strength);

}

}

code: white.hlsl

Texture2D texture0 : register( t0 );

SamplerState sampler0 : register( s0 );

cbuffer CB : register(b1)

{

float strength;

float reserved1;

float reserved2;

float reserved3;

};

struct VS_OUTPUT

{

float4 position : SV_POSITION;

float2 tex : TEXCOORD0;

float4 color : COLOR0;

};

float4 PS(VS_OUTPUT input) : SV_Target

{

float4 srcColor = texture0.Sample(sampler0, input.tex);

srcColor.rgb += (float3(1.0, 1.0, 1.0) - srcColor.rgb) * strength;

return srcColor * input.color;

}