Fix LIGHT compilation for canvas shader

servers/rendering/renderer_rd/renderer_canvas_render_rd.cpp

@@ -2506,7 +2506,7 @@ RendererCanvasRenderRD::RendererCanvasRenderRD(RendererStorageRD *p_storage) {
 		actions.renames["FRAGCOORD"] = "gl_FragCoord";
 		actions.renames["POINT_COORD"] = "gl_PointCoord";
 
-		actions.renames["LIGHT_POSITION"] = "light_pos";
+		actions.renames["LIGHT_POSITION"] = "light_position";
 		actions.renames["LIGHT_COLOR"] = "light_color";
 		actions.renames["LIGHT_ENERGY"] = "light_energy";
 		actions.renames["LIGHT"] = "light";

servers/rendering/renderer_rd/shaders/canvas.glsl

@@ -396,7 +396,7 @@ vec4 light_shadow_compute(uint light_base, vec4 light_color, vec4 shadow_uv
 
 	vec4 shadow_color = unpackUnorm4x8(light_array.data[light_base].shadow_color);
 #ifdef LIGHT_SHADER_CODE_USED
-	shadow_color *= shadow_modulate;
+	shadow_color.rgb *= shadow_modulate;
 #endif
 
 	shadow_color.a *= light_color.a; //respect light alpha
@@ -546,7 +546,7 @@ FRAGMENT_SHADER_CODE
 #ifdef LIGHT_SHADER_CODE_USED
 
 		vec4 shadow_modulate = vec4(1.0);
-		light_color = light_compute(light_vertex, direction, normal, light_color, light_color.a, specular_shininess, shadow_modulate, screen_uv, color, uv, true);
+		light_color = light_compute(light_vertex, vec3(direction, light_array.data[light_base].height), normal, light_color, light_color.a, specular_shininess, shadow_modulate, screen_uv, uv, color, true);
 #else
 
 		if (normal_used) {
@@ -563,7 +563,7 @@ FRAGMENT_SHADER_CODE
 			light_color = light_shadow_compute(light_base, light_color, shadow_uv
 #ifdef LIGHT_SHADER_CODE_USED
 					,
-					shadow_modulate
+					shadow_modulate.rgb
 #endif
 			);
 		}
@@ -605,7 +605,7 @@ FRAGMENT_SHADER_CODE
 		vec3 light_position = vec3(light_array.data[light_base].position, light_array.data[light_base].height);
 
 		light_color.rgb *= light_base_color.rgb;
-		light_color = light_compute(light_vertex, light_position, normal, light_color, light_base_color.a, specular_shininess, shadow_modulate, screen_uv, color, uv, false);
+		light_color = light_compute(light_vertex, light_position, normal, light_color, light_base_color.a, specular_shininess, shadow_modulate, screen_uv, uv, color, false);
 #else
 
 		light_color.rgb *= light_base_color.rgb * light_base_color.a;
@@ -659,7 +659,7 @@ FRAGMENT_SHADER_CODE
 			light_color = light_shadow_compute(light_base, light_color, shadow_uv
 #ifdef LIGHT_SHADER_CODE_USED
 					,
-					shadow_modulate
+					shadow_modulate.rgb
 #endif
 			);
 		}