Workbench: Add support for the xray object option

Xray object can be see through other objects. They cast shadows as well
but cannot receive then.

1 files changed, 13 insertions, 0 deletions

diff --git a/source/blender/draw/engines/workbench/shaders/workbench_ghost_resolve_frag.glsl b/source/blender/draw/engines/workbench/shaders/workbench_ghost_resolve_frag.glsl
new file mode 100644
index 00000000000..59f2df11086
--- /dev/null
+++ b/source/blender/draw/engines/workbench/shaders/workbench_ghost_resolve_frag.glsl
@@ -0,0 +1,13 @@
+uniform sampler2D depthBuffer;
+
+void main(void)
+{
+	float depth = texelFetch(depthBuffer, ivec2(gl_FragCoord.xy), 0).r;
+
+	/* background, discard */
+	if (depth >= 1.0) {
+		discard;
+	}
+
+	gl_FragDepth = depth;
+}