From 7792e62d3c9e3f8b2a27e7e9cbbc8db2c584b682 Mon Sep 17 00:00:00 2001 From: Cosmic Linden Date: Tue, 19 Mar 2024 16:03:57 -0700 Subject: secondlife/viewer-issues#82: Don't allow transparent texture terrain --- indra/newview/llfloaterregioninfo.cpp | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) (limited to 'indra/newview/llfloaterregioninfo.cpp') diff --git a/indra/newview/llfloaterregioninfo.cpp b/indra/newview/llfloaterregioninfo.cpp index 8c4b6fc857..706f7cf943 100644 --- a/indra/newview/llfloaterregioninfo.cpp +++ b/indra/newview/llfloaterregioninfo.cpp @@ -1330,7 +1330,7 @@ BOOL LLPanelRegionTerrainInfo::validateTextureSizes() if (!texture_ctrl) continue; LLUUID image_asset_id = texture_ctrl->getImageAssetID(); - LLViewerTexture* img = LLViewerTextureManager::getFetchedTexture(image_asset_id); + LLViewerFetchedTexture* img = LLViewerTextureManager::getFetchedTexture(image_asset_id); S32 components = img->getComponents(); // Must ask for highest resolution version's width. JC S32 width = img->getFullWidth(); @@ -1348,6 +1348,33 @@ BOOL LLPanelRegionTerrainInfo::validateTextureSizes() return FALSE; } + if (components == 4) + { + if (!img->hasSavedRawImage()) + { + // Raw image isn't loaded yet + // Assume it's invalid due to presence of alpha channel + LLSD args; + args["TEXTURE_NUM"] = i+1; + args["TEXTURE_BIT_DEPTH"] = llformat("%d",components * 8); + LLNotificationsUtil::add("InvalidTerrainAlphaNotFullyLoaded", args); + return FALSE; + } + // Slower path: Calculate alpha from raw image pixels (not needed + // for GLTF materials, which use alphaMode to determine + // transparency) + // Raw image is pretty much guaranteed to be saved due to the texture swatches + LLImageRaw* raw = img->getSavedRawImage(); + if (raw->checkHasTransparentPixels()) + { + LLSD args; + args["TEXTURE_NUM"] = i+1; + LLNotificationsUtil::add("InvalidTerrainAlpha", args); + return FALSE; + } + LL_WARNS() << "Terrain texture image in slot " << i << " with ID " << image_asset_id << " has alpha channel, but pixels are opaque. Is alpha being optimized away in the texture uploader?" << LL_ENDL; + } + if (width > max_terrain_texture_size || height > max_terrain_texture_size) { -- cgit v1.2.3