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added AAStep and resolved stefnotch reviewe

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This commit is contained in:
NoriteSC
2023-10-04 13:13:45 +02:00
parent 367eaf2f89
commit d7b9056d94
2 changed files with 43 additions and 8 deletions
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24
Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp
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@@ -523,11 +523,10 @@ void MaterialGenerator::ProcessGroupMaterial(Box* box, Node* node, Value& value)
case 40:
{
const auto uv = tryGetValue(node->GetBox(0), getUVs).AsFloat2();
const auto ratangle = tryGetValue(node->GetBox(1), node->Values[1]).AsFloat2();
const auto rectangle = tryGetValue(node->GetBox(1), node->Values[1]).AsFloat2();
auto d = writeLocal(ValueType::Float2, String::Format(TEXT("abs({0} * 2 - 1) - {1}"),uv.Value, ratangle.Value), node);
auto fwidth = writeLocal(ValueType::Float , String::Format(TEXT("abs(ddx({0})) + abs(ddy({0}))"), d.Value), node);
auto d2 = writeLocal(ValueType::Float2 , String::Format(TEXT("1 - {0} / {1}"), d.Value, fwidth.Value), node);
auto d = writeLocal(ValueType::Float2, String::Format(TEXT("abs({0} * 2 - 1) - {1}"),uv.Value, rectangle.Value), node);
auto d2 = writeLocal(ValueType::Float2 , String::Format(TEXT("1 - {0} / fwidth({0})"), d.Value), node);
value = writeLocal(ValueType::Float , String::Format(TEXT("saturate(min({0}.x, {0}.y))"), d2.Value), node);
break;
}
@@ -538,6 +537,23 @@ void MaterialGenerator::ProcessGroupMaterial(Box* box, Node* node, Value& value)
value = writeLocal(ValueType::Float, String::Format(TEXT("abs(ddx({0})) + abs(ddy({0}))"), d.Value), node);
break;
}
//AAStep (smooth version of step)
case 42:
{
//source https://www.ronja-tutorials.com/post/046-fwidth/#a-better-step
const auto compValue = tryGetValue(node->GetBox(0), getUVs).AsFloat();
const auto gradient = tryGetValue(node->GetBox(1), node->Values[1]).AsFloat();
auto change = writeLocal(ValueType::Float, String::Format(TEXT("fwidth({0})"), gradient.Value), node);
//base the range of the inverse lerp on the change over two pixels
auto lowerEdge = writeLocal(ValueType::Float, String::Format(TEXT("{0} - {1})"), compValue.Value, change.Value), node);
auto upperEdge = writeLocal(ValueType::Float, String::Format(TEXT("{0} + {1})"), compValue.Value, change.Value), node);
//do the inverse interpolation and saturate it
value = writeLocal(ValueType::Float, String::Format(TEXT("saturate((({0} - {1}) / ({2} - {1})))"), gradient.Value, lowerEdge.Value, upperEdge.Value), node);
}
default:
break;
}