GoaLitiuM/FlaxEngine
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added ability to change sample method

Browse Source
This commit is contained in:
Olly Rybak
2022-12-27 22:26:01 +11:00
parent a2f52edd47
commit 9099197a88
2 changed files with 107 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
Source/Engine/Tools/MaterialGenerator/MaterialGenerator.Textures.cpp
View File

@@ -672,6 +672,20 @@ void MaterialGenerator::ProcessGroupTextures(Box* box, Node* node, Value& value)
// Procedural Texture Sample
case 17:
{
enum CommonSamplerType
{
LinearClamp = 0,
PointClamp = 1,
LinearWrap = 2,
PointWrap = 3,
TextureGroup = 4,
};
const Char* SamplerNames[]
{
TEXT("SamplerLinearClamp"),
TEXT("SamplerLinearWrap"),
};
auto textureBox = node->GetBox(0);
auto uvsBox = node->GetBox(1);
@@ -706,6 +720,23 @@ void MaterialGenerator::ProcessGroupTextures(Box* box, Node* node, Value& value)
const auto textureParam = findParam(texture.Value);
const bool isNormalMap = textureParam->Type == MaterialParameterType::NormalMap;
const Char* samplerName;
const int32 samplerIndex = node->Values[1].AsInt;
if (samplerIndex == TextureGroup)
{
auto& textureGroupSampler = findOrAddTextureGroupSampler(node->Values[2].AsInt);
samplerName = *textureGroupSampler.ShaderName;
}
else if (samplerIndex >= 0 && samplerIndex < ARRAY_COUNT(SamplerNames))
{
samplerName = SamplerNames[samplerIndex];
}
else
{
OnError(node, box, TEXT("Invalid texture sampler."));
return;
}
auto result = writeLocal(Value::InitForZero(ValueType::Float4), node);
createGradients(node);
@@ -741,14 +772,15 @@ void MaterialGenerator::ProcessGroupTextures(Box* box, Node* node, Value& value)
" UV1 = {0} + frac( sin( mul( float2x2( 127.1, 311.7, 269.5, 183.3 ), vertex1 ) ) * 43758.5453 );\n"
" UV2 = {0} + frac( sin( mul( float2x2( 127.1, 311.7, 269.5, 183.3 ), vertex2 ) ) * 43758.5453 );\n"
" UV3 = {0} + frac( sin( mul( float2x2( 127.1, 311.7, 269.5, 183.3 ), vertex3 ) ) * 43758.5453 );\n"
" float4 tex1 = {1}.SampleGrad(SamplerLinearWrap, UV1, {2}, {3});\n"
" float4 tex2 = {1}.SampleGrad(SamplerLinearWrap, UV2, {2}, {3});\n"
" float4 tex3 = {1}.SampleGrad(SamplerLinearWrap, UV3, {2}, {3});\n"
" float4 tex1 = {1}.SampleGrad({4}, UV1, {2}, {3});\n"
" float4 tex2 = {1}.SampleGrad({4}, UV2, {2}, {3});\n"
" float4 tex3 = {1}.SampleGrad({4}, UV3, {2}, {3});\n"
),
uvs.Value, // {0}
texture.Value, // {1}
_ddx.Value, // {2}
_ddy.Value // {3}
_ddy.Value, // {3}
samplerName // {4}
);
// Decode normal map vector