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Added blackbody

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This commit is contained in:
W2.Wizard
2021-01-30 23:21:41 +01:00
parent bd18286fbd
commit e75ca148c0
2 changed files with 22 additions and 1 deletions
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6
Source/Editor/Surface/Archetypes/Material.cs
View File

@@ -805,9 +805,13 @@ namespace FlaxEditor.Surface.Archetypes
Description = "Simulates black body radiation via a given temperature in kelvin",
Flags = NodeFlags.MaterialGraph,
Size = new Vector2(120, 25),
DefaultValues = new object[]
{
0.0f,
},
Elements = new[]
{
NodeElementArchetype.Factory.Input(0, "Temp", true, typeof(float), 0),
NodeElementArchetype.Factory.Input(0, "Temp", true, typeof(float), 0, 0),
NodeElementArchetype.Factory.Output(0, string.Empty, typeof(Vector3), 1),
}
},

17
Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Material.cpp
View File

@@ -435,6 +435,23 @@ void MaterialGenerator::ProcessGroupMaterial(Box* box, Node* node, Value& value)
// Blackbody
case 35:
{
const auto temperature = tryGetValue(node->GetBox(0), node->Values[0]).AsFloat();
// Value X
auto x = writeLocal(ValueType::Float, String::Format(TEXT("56100000.0f * pow({0}, (-3.0f / 2.0f)) + 148.0f"), temperature.Value), node);
// Value Y
auto y = writeLocal(ValueType::Float, String::Format(TEXT("{0} > 6500.0f ? 35200000.0f * pow({0}, (-3.0f / 2.0f)) + 184.0f : 100.04f * log({0}) - 623.6f"), temperature.Value), node);
// Value Z
auto z = writeLocal(ValueType::Float, String::Format(TEXT("194.18f * log({0}) - 1448.6f"), temperature.Value), node);
// Final color
auto color = writeLocal(ValueType::Vector3, String::Format(TEXT("float3({0}, {1}, {2})"), x.Value, y.Value, z.Value), node);
color = writeLocal(ValueType::Vector3, String::Format(TEXT("clamp({0}, 0.0f, 255.0f) / 255.0f"), color.Value), node);
color = writeLocal(ValueType::Vector3, String::Format(TEXT("{1} < 1000.0f ? {0} * {1}/1000.0f : {0}"), color.Value, temperature.Value), node);
value = color;
break;
}
default: