1 files changed, 89 insertions, 0 deletions
diff --git a/indra/llprimitive/llgltfmaterial.h b/indra/llprimitive/llgltfmaterial.h
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+++ b/indra/llprimitive/llgltfmaterial.h
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+/**
+ * @file llgltfmaterial.h
+ * @brief Material definition
+ *
+ * $LicenseInfo:firstyear=2022&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+#pragma once
+
+#include "llrefcount.h"
+#include "v4color.h"
+#include "v3color.h"
+#include "lluuid.h"
+#include "llmd5.h"
+
+class LLGLTFMaterial : public LLRefCount
+{
+public:
+
+    enum AlphaMode
+    {
+        ALPHA_MODE_OPAQUE = 0,
+        ALPHA_MODE_BLEND,
+        ALPHA_MODE_MASK
+    };
+
+    LLUUID mAlbedoId;
+    LLUUID mNormalId;
+    LLUUID mMetallicRoughnessId;
+    LLUUID mEmissiveId;
+
+    LLColor4 mAlbedoColor = LLColor4(1,1,1,1);
+    LLColor3 mEmissiveColor = LLColor3(0,0,0);
+
+    F32 mMetallicFactor = 0.f;
+    F32 mRoughnessFactor = 0.f;
+    bool mDoubleSided = false;
+    AlphaMode mAlphaMode = ALPHA_MODE_OPAQUE;
+
+    // get a UUID based on a hash of this LLGLTFMaterial
+    LLUUID getHash() const
+    {
+        LLMD5 md5;
+        md5.update((unsigned char*) this, sizeof(this));
+        LLUUID id;
+        md5.raw_digest(id.mData);
+        return id;
+    }
+
+    // set mAlphaMode from string.
+    // Anything otherthan "MASK" or "BLEND" sets mAlphaMode to ALPHA_MODE_OPAQUE
+    void setAlphaMode(const std::string& mode)
+    {
+        if (mode == "MASK")
+        {
+            mAlphaMode = ALPHA_MODE_MASK;
+        }
+        else if (mode == "BLEND")
+        {
+            mAlphaMode = ALPHA_MODE_BLEND;
+        }
+        else
+        {
+            mAlphaMode = ALPHA_MODE_OPAQUE;
+        }
+    }
+};
+
+
+