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#version 330 core
out vec4 FragColor;
in vec2 TexCoords;
uniform sampler2D depthMap;
//uniform float near_plane;
//uniform float far_plane;
//
//// required when using a perspective projection matrix
//float LinearizeDepth(float depth)
//{
// float z = depth * 2.0 - 1.0; // Back to NDC
// return (2.0 * near_plane * far_plane) / (far_plane + near_plane - z * (far_plane - near_plane));
//}
void main()
{
float depthValue = texture(depthMap, TexCoords).r;
// FragColor = vec4(vec3(LinearizeDepth(depthValue) / far_plane), 1.0); // perspective
FragColor = vec4(vec3(depthValue), 1.0); // orthographic
//FragColor = vec4(1.0, 1.0, 0.0, 1.0);
}