blender-archive/source/blender/gpu/shaders/gpu_shader_fx_depth_resolve.glsl

uniform sampler2D depthbuffer;

in vec4 uvcoordsvar;

void main(void)
{
	float depth = texture(depthbuffer, uvcoordsvar.xy).r;

	/* XRay background, discard */
	if (depth >= 1.0) {
		discard;
	}

	gl_FragDepth = depth;
}
Compositing works with X-Ray. Basically, before drawing X-Rays, we now bind a second depth buffer. After drawing XRays, we do an extra resolve pass where we overwrite the non-XRay depth buffer in pixels where the depth is not maximum (which means background pixel, since depth is cleared before drawing X-Ray objects). This ensures both scene and X-Rays keep their depth values and are ready for compositing. Well, the odd effect due to depth discontinuities can be expected, and X-Rays are a bit more expensive (extra buffer + resolve pass) but at least X-Rays won't invalidate depth values anymore. Whee! 2015-02-17 18:08:28 +01:00			`uniform sampler2D depthbuffer;`
OpenGL: Converted gpu_compositing.c to use batches. 2017-03-15 13:17:08 +01:00
Cleanup: remove GLSL version checks 2017-05-17 10:46:42 +10:00			`in vec4 uvcoordsvar;`
Compositing works with X-Ray. Basically, before drawing X-Rays, we now bind a second depth buffer. After drawing XRays, we do an extra resolve pass where we overwrite the non-XRay depth buffer in pixels where the depth is not maximum (which means background pixel, since depth is cleared before drawing X-Ray objects). This ensures both scene and X-Rays keep their depth values and are ready for compositing. Well, the odd effect due to depth discontinuities can be expected, and X-Rays are a bit more expensive (extra buffer + resolve pass) but at least X-Rays won't invalidate depth values anymore. Whee! 2015-02-17 18:08:28 +01:00
			`void main(void)`
			`{`
OpenGL: convert old texture2D calls in FX shaders And one texture1D call. 2017-05-19 10:41:42 -04:00			`float depth = texture(depthbuffer, uvcoordsvar.xy).r;`
Compositing works with X-Ray. Basically, before drawing X-Rays, we now bind a second depth buffer. After drawing XRays, we do an extra resolve pass where we overwrite the non-XRay depth buffer in pixels where the depth is not maximum (which means background pixel, since depth is cleared before drawing X-Ray objects). This ensures both scene and X-Rays keep their depth values and are ready for compositing. Well, the odd effect due to depth discontinuities can be expected, and X-Rays are a bit more expensive (extra buffer + resolve pass) but at least X-Rays won't invalidate depth values anymore. Whee! 2015-02-17 18:08:28 +01:00
			`/* XRay background, discard */`
			`if (depth >= 1.0) {`
			`discard;`
			`}`

			`gl_FragDepth = depth;`
			`}`