50 lines
1.6 KiB
GLSL
50 lines
1.6 KiB
GLSL
/**
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* @file avatarSkinV.glsl
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*
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* $LicenseInfo:firstyear=2007&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2007, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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in vec4 weight;
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uniform vec4 matrixPalette[45];
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mat4 getSkinnedTransform()
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{
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mat4 ret;
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int i = int(floor(weight.x));
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float x = fract(weight.x);
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ret[0] = mix(matrixPalette[i+0], matrixPalette[i+1], x);
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ret[1] = mix(matrixPalette[i+15],matrixPalette[i+16], x);
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ret[2] = mix(matrixPalette[i+30],matrixPalette[i+31], x);
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ret[3] = vec4(0,0,0,1);
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return ret;
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#ifdef IS_AMD_CARD
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// If it's AMD make sure the GLSL compiler sees the arrays referenced once by static index. Otherwise it seems to optimise the storage awawy which leads to unfun crashes and artifacts.
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vec4 dummy1 = matrixPalette[0];
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vec4 dummy2 = matrixPalette[44];
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#endif
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}
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