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[vulkan] Use identity for vertices with no bone weights

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Since the identity matrix is mixed in with the other bones, interesting
things will happen if the bone weights don't add up to 1 and are not all
zero.
This commit is contained in:
Bill Currie 2023-09-04 11:08:55 +09:00
parent 8dd0410968
commit 084ac76f55
1 changed files with 1 additions and 0 deletions
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1
libs/video/renderer/vulkan/shader/iqm.vert
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@ -46,6 +46,7 @@ main (void)
m += bones[vbones.y] * vweights.y;
m += bones[vbones.z] * vweights.z;
m += bones[vbones.w] * vweights.w;
m += mat3x4(1,0,0,0,0,1,0,0,0,0,1,0) * (1 - dot(vweights, vec4(1,1,1,1)));
vec4 pos = Model * vec4 (vec4(vposition, 1) * m, 1);
if (IQMShadow) {
gl_Position = shadowView[MatrixBase + gl_ViewIndex] * pos;