public static (SubAssetKey, TextureDescriptor) BaseColorTexture(GltfData data, glTFMaterial src)
{
var(offset, scale) = GltfTextureImporter.GetTextureOffsetAndScale(src.pbrMetallicRoughness.baseColorTexture);
return(GltfTextureImporter.CreateSrgb(data, src.pbrMetallicRoughness.baseColorTexture.index, offset, scale));
}
public static (SubAssetKey, TextureDescriptor) EmissiveTexture(GltfData data, glTFMaterial src)
{
var(offset, scale) = GltfTextureImporter.GetTextureOffsetAndScale(src.emissiveTexture);
return(GltfTextureImporter.CreateSrgb(data, src.emissiveTexture.index, offset, scale));
}
public static bool TryCreateParam(GltfData data, int i, out MaterialDescriptor matDesc)
{
if (i < 0 || i >= data.GLTF.materials.Count)
{
matDesc = default;
return(false);
}
var src = data.GLTF.materials[i];
if (!glTF_KHR_materials_unlit.IsEnable(src))
{
matDesc = default;
return(false);
}
var textureSlots = new Dictionary <string, TextureDescriptor>();
var colors =
src.pbrMetallicRoughness.baseColorFactor != null &&
src.pbrMetallicRoughness.baseColorFactor.Length == 4
? new Dictionary <string, Color>
{
{
"_Color",
src.pbrMetallicRoughness.baseColorFactor.ToColor4(ColorSpace.Linear, ColorSpace.sRGB)
}
}
: new Dictionary <string, Color>();
// texture
if (src.pbrMetallicRoughness.baseColorTexture != null)
{
var(offset, scale) =
GltfTextureImporter.GetTextureOffsetAndScale(src.pbrMetallicRoughness.baseColorTexture);
var(key, textureParam) = GltfTextureImporter.CreateSrgb(data,
src.pbrMetallicRoughness.baseColorTexture.index, offset, scale);
textureSlots.Add("_MainTex", textureParam);
}
matDesc = new MaterialDescriptor(
GltfMaterialDescriptorGenerator.GetMaterialName(i, src),
UniUnlitUtil.ShaderName,
null,
textureSlots,
new Dictionary <string, float>(),
colors,
new Dictionary <string, Vector4>(),
new Action <Material>[]
{
//renderMode
material =>
{
switch (src.alphaMode)
{
case "OPAQUE":
UniUnlitUtil.SetRenderMode(material, UniUnlitRenderMode.Opaque);
break;
case "BLEND":
UniUnlitUtil.SetRenderMode(material, UniUnlitRenderMode.Transparent);
break;
case "MASK":
UniUnlitUtil.SetRenderMode(material, UniUnlitRenderMode.Cutout);
material.SetFloat(Cutoff, src.alphaCutoff);
break;
default:
// default OPAQUE
UniUnlitUtil.SetRenderMode(material, UniUnlitRenderMode.Opaque);
break;
}
// culling
if (src.doubleSided)
{
UniUnlitUtil.SetCullMode(material, UniUnlitCullMode.Off);
}
else
{
UniUnlitUtil.SetCullMode(material, UniUnlitCullMode.Back);
}
// VColor
var hasVertexColor = data.MaterialHasVertexColor(i);
if (hasVertexColor)
{
UniUnlitUtil.SetVColBlendMode(material, UniUnlitVertexColorBlendOp.Multiply);
}
UniUnlitUtil.ValidateProperties(material, true);
}
}
);
return(true);
}
