full support of ObjectBase:: isReceiveShadows, isCastShadows, isAcceptLight and isAcceptFog

shaders/shadow.glsl

@@ -1,6 +1,11 @@
 // vert //
 
+flat out uint object_flags;
+
 void main(void) {
+	object_flags = qgl_ObjectFlags;
+	if (bitfieldExtract(object_flags, 2, 1) == 0)
+		return;
 	qgl_MaterialIndex = qgl_Material;
 	qgl_FragTexture = qgl_getFragTexture();
 	gl_Position = qgl_ftransform();
@@ -9,10 +14,14 @@ void main(void) {
 
 // frag //
 
+flat in uint object_flags;
+
 float z_near = 0.1f;
 const float _pe = 2.4e-7;
 
 void main(void) {
+	if (bitfieldExtract(object_flags, 2, 1) == 0)
+		discard;
 	vec4 diffuse = qgl_materialTexture(QGL_MAP_DIFFUSE, qgl_FragTexture.xy, vec4(0));
 	if(diffuse.a < 0.5)
 		discard;