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add specular

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This commit is contained in:
lightling 2022-03-19 16:49:03 -04:00
parent 57650e310e
commit a4bfd4e0c3
Signed by: lightling
GPG key ID: 016F11E0AA296B67
1 changed files with 12 additions and 1 deletions
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13
SimplePixelShader.hlsl
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@ -15,7 +15,18 @@ float4 main(VertexToPixel input) : SV_TARGET
float3 ambientTint = ambient * tint;
float3 directionalLight1Dir = normalize(-directionalLight1.Direction);
float diffuse = saturate(dot(input.normal, directionalLight1Dir));
float3 final = (diffuse * directionalLight1.Color * tint) + ambientTint;
float3 view = normalize(cameraPosition - input.worldPosition);
float3 reflection = reflect(directionalLight1Dir, input.normal);
float specularExponent = (1.0f - roughness) * MAX_SPECULAR_EXPONENT;
float specular = 0;
if (specularExponent > 0.05f)
{
specular = pow(saturate(dot(reflection, view)), specularExponent);
}
float3 final = (diffuse * directionalLight1.Color * tint) + ambientTint + specular;
return float4(final, 1);
}