blender-archive/source/blender/draw/modes/shaders/object_empty_image_frag.glsl

flat in vec4 finalColor;

#ifndef USE_WIRE
in vec2 texCoord_interp;
#endif

out vec4 fragColor;

#ifndef USE_WIRE
uniform sampler2D image;
#endif

uniform int depthMode;
uniform bool useAlphaTest;

void main()
{
#ifdef USE_WIRE
	fragColor = finalColor;
#else
	vec4 tex_col = texture(image, texCoord_interp);
	fragColor = finalColor * tex_col;

	if (useAlphaTest) {
		/* Arbitrary discard anything below 5% opacity.
		 * Note that this could be exposed to the User. */
		if (tex_col.a < 0.05) {
			discard;
		}
		else {
			fragColor.a = 1.0;
		}
	}
#endif

	if (depthMode == DEPTH_BACK) {
		gl_FragDepth = 0.999999;
	}
	else if (depthMode == DEPTH_FRONT) {
		gl_FragDepth = 0.000001;
	}
	else if (depthMode == DEPTH_UNCHANGED) {
		gl_FragDepth = gl_FragCoord.z;
	}
}