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fix(dirtfx): blend IVF vehicle grunge textures towards white with full opacity #347

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fix(dirtfx): blend IVF vehicle grunge textures towards white with full opacity #347

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30 changes: 20 additions & 10 deletions src/features/dirtfx.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -103,9 +103,9 @@ void DirtFx::ShutdownHook()
{
for (int i = 0; i < 16; i++)
{
if (ms_aDirtTextures_2[i]) RwTextureDestroy(ms_aDirtTextures_2[i]);
if (ms_aDirtTextures_3[i]) RwTextureDestroy(ms_aDirtTextures_3[i]);
if (ms_aDirtTextures_4[i]) RwTextureDestroy(ms_aDirtTextures_4[i]); // RwTextureDestroy(ms_aDirtTextures_5[i]);
if (ms_aDirtTextures_2[i]) { RwTextureDestroy(ms_aDirtTextures_2[i]); ms_aDirtTextures_2[i] = nullptr; }
if (ms_aDirtTextures_3[i]) { RwTextureDestroy(ms_aDirtTextures_3[i]); ms_aDirtTextures_3[i] = nullptr; }
if (ms_aDirtTextures_4[i]) { RwTextureDestroy(ms_aDirtTextures_4[i]); ms_aDirtTextures_4[i] = nullptr; }
}
}

Expand Down Expand Up @@ -160,34 +160,44 @@ void DirtFx::InitialiseBlendTextureSingle(const char *CleanName, const char *Dir
void DirtFx::InitialiseDirtTextureSingle(const char *name, RwTexture **dirtTextureArray)
{
RwTexture *pTex = TextureMgr::Get(name);
if (!pTex)
if (!pTex || !pTex->raster)
{
return;
}
pTex->filterAddressing = rwFILTERLINEAR;

const int width = pTex->raster->width;
const int height = pTex->raster->height;

for (int texid = 0; texid < 16; texid++)
{
dirtTextureArray[texid] = CClothesBuilder::CopyTexture(pTex);
if (!dirtTextureArray[texid])
{
continue;
}

RwTextureSetName(dirtTextureArray[texid], name);
int alpha = 255 - texid * 15;
dirtTextureArray[texid]->filterAddressing = rwFILTERLINEAR;

float factor = static_cast<float>(texid) / 15.0f;
RwRaster *dirtRaster = dirtTextureArray[texid]->raster;
RwUInt8 *pixelsRaw = RwRasterLock(dirtRaster, 0, rwRASTERLOCKWRITE);
if (!pixelsRaw)
{
return;
continue;
}

const int width = pTex->raster->width;
const int height = pTex->raster->height;
RwRGBA *pixels = reinterpret_cast<RwRGBA *>(pixelsRaw);

for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
RwRGBA &pixel = pixels[y * width + x];
pixel.alpha = alpha;
pixel.red = static_cast<RwUInt8>(255 - static_cast<int>((255 - pixel.red) * factor));
pixel.green = static_cast<RwUInt8>(255 - static_cast<int>((255 - pixel.green) * factor));
pixel.blue = static_cast<RwUInt8>(255 - static_cast<int>((255 - pixel.blue) * factor));
pixel.alpha = 255;
}
}
RwRasterUnlock(dirtRaster);
Expand Down