Add camera texture node

Author: luboslenco

paint/sources/material_nodes/camera_texture_node.ts

@@ -0,0 +1,38 @@
+
+function camera_texture_node_init() {
+	array_push(nodes_material_texture, camera_texture_node_def);
+	map_set(parser_material_node_vectors, "TEX_CAMERA", camera_texture_node_vector);
+}
+
+function camera_texture_node_vector(node: ui_node_t, socket: ui_node_socket_t): string {
+	let tex_name: string = "texcamera_" + parser_material_node_name(node);
+	node_shader_add_texture(parser_material_kong, "" + tex_name, "_camera_texture");
+	let store: string = parser_material_store_var_name(node);
+	parser_material_write(parser_material_kong, "var " + store + "_res: float3 = sample(" + tex_name + ", sampler_linear, tex_coord).rgb;");
+	return store + "_res";
+}
+
+let camera_texture_node_def: ui_node_t = {
+	id : 0,
+	name : _tr("Camera Texture"),
+	type : "TEX_CAMERA", // extension
+	x : 0,
+	y : 0,
+	color : 0xff4982a0,
+	inputs : [],
+	outputs : [ {
+		id : 0,
+		node_id : 0,
+		name : _tr("Color"),
+		type : "RGBA",
+		color : 0xffc7c729,
+		default_value : f32_array_create_xyzw(0.8, 0.8, 0.8, 1.0),
+		min : 0.0,
+		max : 1.0,
+		precision : 100,
+		display : 0
+	} ],
+	buttons : [],
+	width : 0,
+	flags : 0
+};

paint/sources/nodes_material.ts

@@ -38,6 +38,7 @@ function nodes_material_init() {
 
 	nodes_material_texture = [];
 	brick_texture_node_init();
+	camera_texture_node_init();
 	checker_texture_node_init();
 	curvature_bake_node_init();
 	gradient_texture_node_init();

paint/sources/uniforms_ext.ts

@@ -425,6 +425,10 @@ function uniforms_ext_tex_link(object: object_t, mat: material_data_t, link: str
 			return rt._image;
 		}
 	}
+	if (link == "_camera_texture") {
+		let rt: render_target_t = map_get(render_path_render_targets, "last");
+		return rt._image;
+	}
 
 	return null;
 }