1 files changed, 103 insertions, 0 deletions
diff --git a/indra/newview/llfetchedgltfmaterial.cpp b/indra/newview/llfetchedgltfmaterial.cpp
new file mode 100644
index 0000000000..2d3015635c
--- /dev/null
+++ b/indra/newview/llfetchedgltfmaterial.cpp
@@ -0,0 +1,103 @@
+/**
+ * @file   llfetchedgltfmaterial.cpp
+ *
+ * $LicenseInfo:firstyear=2022&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2022, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llfetchedgltfmaterial.h"
+
+#include "llviewertexturelist.h"
+#include "llavatarappearancedefines.h"
+#include "llshadermgr.h"
+
+LLFetchedGLTFMaterial::LLFetchedGLTFMaterial()
+    : LLGLTFMaterial()
+    , mExpectedFlusTime(0.f)
+    , mActive(true)
+    , mFetching(false)
+{
+
+}
+
+LLFetchedGLTFMaterial::~LLFetchedGLTFMaterial()
+{
+    
+}
+
+void LLFetchedGLTFMaterial::bind(LLGLSLShader* shader)
+{
+    // glTF 2.0 Specification 3.9.4. Alpha Coverage
+    // mAlphaCutoff is only valid for LLGLTFMaterial::ALPHA_MODE_MASK
+    F32 min_alpha = -1.0;
+
+    if (mAlphaMode == LLGLTFMaterial::ALPHA_MODE_MASK)
+    {
+        min_alpha = mAlphaCutoff;
+    }
+    shader->uniform1f(LLShaderMgr::MINIMUM_ALPHA, min_alpha);
+
+    if (mBaseColorTexture.notNull())
+    {
+        gGL.getTexUnit(0)->bindFast(mBaseColorTexture);
+    }
+    else
+    {
+        gGL.getTexUnit(0)->bindFast(LLViewerFetchedTexture::sWhiteImagep);
+    }
+
+
+    if (mNormalTexture.notNull())
+    {
+        shader->bindTexture(LLShaderMgr::BUMP_MAP, mNormalTexture);
+    }
+    else
+    {
+        shader->bindTexture(LLShaderMgr::BUMP_MAP, LLViewerFetchedTexture::sFlatNormalImagep);
+    }
+
+    if (mMetallicRoughnessTexture.notNull())
+    {
+        shader->bindTexture(LLShaderMgr::SPECULAR_MAP, mMetallicRoughnessTexture); // PBR linear packed Occlusion, Roughness, Metal.
+    }
+    else
+    {
+        shader->bindTexture(LLShaderMgr::SPECULAR_MAP, LLViewerFetchedTexture::sWhiteImagep);
+    }
+
+    if (mEmissiveTexture.notNull())
+    {
+        shader->bindTexture(LLShaderMgr::EMISSIVE_MAP, mEmissiveTexture);  // PBR sRGB Emissive
+    }
+    else
+    {
+        shader->bindTexture(LLShaderMgr::EMISSIVE_MAP, LLViewerFetchedTexture::sWhiteImagep);
+    }
+
+    // NOTE: base color factor is baked into vertex stream
+
+    shader->uniform1f(LLShaderMgr::ROUGHNESS_FACTOR, mRoughnessFactor);
+    shader->uniform1f(LLShaderMgr::METALLIC_FACTOR, mMetallicFactor);
+    shader->uniform3fv(LLShaderMgr::EMISSIVE_COLOR, 1, mEmissiveColor.mV);
+
+}