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Rename vViewPosition to vEyeDir #2

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vorg opened this issue Aug 15, 2018 · 0 comments
Open

Rename vViewPosition to vEyeDir #2

vorg opened this issue Aug 15, 2018 · 0 comments

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@vorg
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vorg commented Aug 15, 2018 •
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In the source code you use V which is usually used for View Vector aka Eye Direction.
Even the vertex shader calculates eye direction.

// eyeDir = cameraPosInViewSpace - viewPos
// eyeDir = vec3(0.0, 0.0, 0.0) - viewPos
// eyeDir =  -viewPos

vViewPosition = -viewPos.xyz

https://github.com/glslify/glsl-perturb-normal/blob/master/demo/vert.glsl#L10
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