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gpu_shader_compositor_type_conversion.glsl « library « shaders « realtime_compositor « compositor « blender « source - git.blender.org/blender.git - Unnamed repository; edit this file 'description' to name the repository.
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float float_from_vec4(vec4 vector)
{
  return dot(vector.rgb, vec3(1.0)) / 3.0;
}

float float_from_vec3(vec3 vector)
{
  return dot(vector, vec3(1.0)) / 3.0;
}

vec3 vec3_from_vec4(vec4 vector)
{
  return vector.rgb;
}

vec3 vec3_from_float(float value)
{
  return vec3(value);
}

vec4 vec4_from_vec3(vec3 vector)
{
  return vec4(vector, 1.0);
}

vec4 vec4_from_float(float value)
{
  return vec4(vec3(value), 1.0);
}