fixed that weird mesh seam bug

Shaders/mightyduke_ps1.gdshader

@@ -0,0 +1,58 @@
+shader_type spatial;
+render_mode vertex_lighting,
+	skip_vertex_transform,
+	specular_disabled,
+	shadows_disabled,
+	diffuse_lambert_wrap;
+//render_mode blend_mix,
+//	cull_disabled,
+//	depth_prepass_alpha,
+//	shadows_disabled,
+//	specular_disabled,
+//	vertex_lighting;
+
+uniform sampler2D albedo: source_color, filter_nearest;
+
+global uniform float vertex_jitter: hint_range(0.0, 1.0) = 0.5;
+uniform bool jitter_z_coordinate = true;
+uniform bool jitter_depth_independent = true;
+global uniform bool affine_mapping = true;
+uniform float alpha_scissor: hint_range(0.0, 1.0) = 1.0;
+
+void vertex() {
+	VERTEX = (MODELVIEW_MATRIX * vec4(VERTEX, 1.0)).xyz;
+
+	float z_orig = VERTEX.z;
+	float i = (1.0 - vertex_jitter) * min(VIEWPORT_SIZE.x, VIEWPORT_SIZE.y) / 2.0;
+
+	vec4 clip = PROJECTION_MATRIX * vec4(VERTEX, 1.0);
+
+	if (jitter_depth_independent) {
+		float w = (PROJECTION_MATRIX * vec4(VERTEX, 1.0)).w;
+		VERTEX = round(VERTEX / w * i) / i * w;
+	} else {
+		VERTEX = round(VERTEX * i) / i;
+	}
+
+	if (!jitter_z_coordinate) {
+		VERTEX.z = z_orig;
+	}
+	POSITION = PROJECTION_MATRIX * vec4(VERTEX, 1.0);
+	if (affine_mapping) {
+
+		POSITION /= abs(POSITION.w);
+		//UV *= VERTEX.z;
+	}
+}
+
+void fragment() {
+	vec2 uv = UV;
+
+	//if (affine_texture_mapping) {
+	//	uv /= VERTEX.z;
+	//}
+
+	ALBEDO = texture(albedo, uv).rgb;
+	ALPHA = texture(albedo, uv).a;
+	ALPHA_SCISSOR_THRESHOLD = alpha_scissor;
+}