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Handle mask ambient occlusion

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ackwell 2024-01-14 00:38:28 +11:00
parent ca58c81bce
commit f71096f8b0
1 changed files with 28 additions and 6 deletions
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34
Penumbra/Import/Models/Export/MaterialExporter.cs
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@ -43,28 +43,50 @@ public class MaterialExporter
var operation = new ProcessCharacterNormalOperation(normal, table); var operation = new ProcessCharacterNormalOperation(normal, table);
ParallelRowIterator.IterateRows(ImageSharpConfiguration.Default, normal.Bounds(), in operation); ParallelRowIterator.IterateRows(ImageSharpConfiguration.Default, normal.Bounds(), in operation);
var baseColor = operation.BaseColor; Image baseColor = operation.BaseColor;
if (material.Textures.TryGetValue(TextureUsage.SamplerDiffuse, out var diffuse)) if (material.Textures.TryGetValue(TextureUsage.SamplerDiffuse, out var diffuse))
{ {
MultiplyOperation.Execute(diffuse, baseColor); MultiplyOperation.Execute(diffuse, operation.BaseColor);
baseColor = diffuse; baseColor = diffuse;
} }
// TODO: what about the two specularmaps? // TODO: what about the two specularmaps?
var specular = operation.Specular; Image specular = operation.Specular;
if (material.Textures.TryGetValue(TextureUsage.SamplerSpecular, out var newSpecular)) if (material.Textures.TryGetValue(TextureUsage.SamplerSpecular, out var specularTexture))
{ {
MultiplyOperation.Execute(newSpecular, specular); MultiplyOperation.Execute(specularTexture, operation.Specular);
specular = specularTexture;
}
Image? occlusion = null;
if (material.Textures.TryGetValue(TextureUsage.SamplerMask, out var maskTexture))
{
// Extract the red channel for ambient occlusion.
maskTexture.Mutate(context => context.Filter(new ColorMatrix(
1f, 1f, 1f, 0f,
0f, 0f, 0f, 0f,
0f, 0f, 0f, 0f,
0f, 0f, 0f, 1f,
0f, 0f, 0f, 0f
)));
occlusion = maskTexture;
// TODO: handle other textures stored in the mask?
} }
// TODO: clean up this name generation a bunch. probably a method. // TODO: clean up this name generation a bunch. probably a method.
var imageName = name.Replace("/", "").Replace(".mtrl", ""); var imageName = name.Replace("/", "").Replace(".mtrl", "");
return BuildSharedBase(material, name) var materialBuilder = BuildSharedBase(material, name)
.WithBaseColor(BuildImage(baseColor, $"{imageName}_basecolor")) .WithBaseColor(BuildImage(baseColor, $"{imageName}_basecolor"))
.WithNormal(BuildImage(operation.Normal, $"{imageName}_normal")) .WithNormal(BuildImage(operation.Normal, $"{imageName}_normal"))
.WithSpecularColor(BuildImage(specular, $"{imageName}_specular")) .WithSpecularColor(BuildImage(specular, $"{imageName}_specular"))
.WithEmissive(BuildImage(operation.Emissive, $"{imageName}_emissive"), Vector3.One, 1); .WithEmissive(BuildImage(operation.Emissive, $"{imageName}_emissive"), Vector3.One, 1);
if (occlusion != null)
materialBuilder.WithOcclusion(BuildImage(occlusion, $"{imageName}_occlusion"));
return materialBuilder;
} }
// TODO: It feels a little silly to request the entire normal here when extrating the normal only needs some of the components. // TODO: It feels a little silly to request the entire normal here when extrating the normal only needs some of the components.