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otanodesignco/.glsl

Created July 29, 2023 17:22
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view direction
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.glsl
out vec3 vViewDirection; // varying to send to the fragment shader
void main()
{
vec4 viewDirection = modelViewMatrix * vec4( position, 1.0 );
vViewDirection = viewDirection.xyz; // set view direction per pixel
gl_Position = projectionMatrix * viewDirection;
}
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