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Add WorldPosition to postfx material scene textures for world-space position sampling at uv

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This commit is contained in:
Wojtek Figat
2022-11-21 23:45:13 +01:00
parent 99c296ff3a
commit c55d38534d
7 changed files with 38 additions and 1 deletions
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17
Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Textures.cpp
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@@ -416,6 +416,23 @@ void MaterialGenerator::ProcessGroupTextures(Box* box, Node* node, Value& value)
value = writeLocal(VariantType::Int, String::Format(TEXT("(int)({0}.a * 3.999)"), gBuffer1Sample->Value), node);
break;
}
case MaterialSceneTextures::WorldPosition:
{
auto depthParam = findOrAddSceneTexture(MaterialSceneTextures::SceneDepth);
auto depthSample = sampleTextureRaw(node, value, box, &depthParam);
if (depthSample == nullptr)
break;
const auto parent = box->GetParent<ShaderGraphNode<>>();
MaterialGraphBox* uvBox = parent->GetBox(0);
bool useCustomUVs = uvBox->HasConnection();
String uv;
if (useCustomUVs)
uv = MaterialValue::Cast(tryGetValue(uvBox, getUVs), VariantType::Float2).Value;
else
uv = TEXT("input.TexCoord.xy");
value = writeLocal(VariantType::Float3, String::Format(TEXT("GetWorldPos({1}, {0}.rgb)"), depthSample->Value, uv), node);
break;
}
default:
{
// Sample single texture