add particle define to particle shaders (playcanvas#2454)

Maksims · web-flow · commit b2243ff6ca10 · 2020-09-30T14:12:52.000+01:00
diff --git a/src/graphics/program-lib/programs/particle.js b/src/graphics/program-lib/programs/particle.js
@@ -25,6 +25,7 @@ var particle = {
     createShaderDefinition: function (device, options) {
         var vshader = "";
         var fshader = precisionCode(device) + "\n";
+        fshader += '#define PARTICLE\n';
 
         if (device.webgl2) {
             vshader += "#define GL2\n";
