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tweak max texture resolution thresholds

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Andrew Meadows 2017-02-06 12:13:31 -08:00
parent 8b2c720e29
commit 8b1f569132
1 changed files with 12 additions and 11 deletions
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23
libraries/fbx/src/FBXReader.cpp
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@ -1468,25 +1468,26 @@ FBXGeometry* FBXReader::extractFBXGeometry(const QVariantHash& mapping, const QS
// HACK: until we get proper LOD management we're going to cap model textures
// according to how many unique textures the model uses:
// 1 - 7 textures --> 2048
// 8 - 31 textures --> 1024
// 32 - 127 textures --> 512
// 1 - 8 textures --> 2048
// 8 - 32 textures --> 1024
// 33 - 128 textures --> 512
// etc...
QSet<QString> uniqueTextures;
for (auto& material : _fbxMaterials) {
material.getTextureNames(uniqueTextures);
}
int numTextures = uniqueTextures.size();
const int MAX_NUM_TEXTURES_AT_MAX_RESOLUTION = 7;
const int MAX_NUM_TEXTURES_AT_MAX_RESOLUTION = 8;
int maxWidth = sqrt(MAX_NUM_PIXELS_FOR_FBX_TEXTURE);
if (numTextures > MAX_NUM_TEXTURES_AT_MAX_RESOLUTION) {
int maxWidth = sqrt(MAX_NUM_PIXELS_FOR_FBX_TEXTURE + 1);
int t = numTextures;
t /= MAX_NUM_TEXTURES_AT_MAX_RESOLUTION;
while (t > 0) {
int numTextureThreshold = MAX_NUM_TEXTURES_AT_MAX_RESOLUTION;
const int MIN_MIP_TEXTURE_WIDTH = 64;
do {
maxWidth /= 2;
t /= 4;
}
qCDebug(modelformat) << "max square texture width =" << maxWidth << " for model" << url;
numTextureThreshold *= 4;
} while (numTextureThreshold < numTextures && maxWidth > MIN_MIP_TEXTURE_WIDTH);
qCDebug(modelformat) << "Capped square texture width =" << maxWidth << "for model" << url << "with" << numTextures << "textures";
for (auto& material : _fbxMaterials) {
material.setMaxNumPixelsPerTexture(maxWidth * maxWidth);
}