add renderer switch to helide to ignore sub-optimal ambientRadiance default

Author: jeffamstutz

src/devices/helide/HelideDefinitions.json

@@ -91,6 +91,13 @@
           ],
           "description": "visualization modes (most for debugging)"
         },
+        {
+          "name": "ignoreAmbientLighting",
+          "types": ["ANARI_BOOL"],
+          "tags": [],
+          "default": true,
+          "description": "ignore 'ambientRaidance' and 'ambientColor' parameters on the renderer"
+        },
         {
           "name": "eyeLightBlendRatio",
           "types": ["ANARI_FLOAT32"],

src/devices/helide/renderer/Renderer.cpp

@@ -118,6 +118,10 @@ void Renderer::commitParameters()
   m_mode = renderModeFromString(getParamString("mode", "default"));
   m_taskGrainSize.x = getParam<int32_t>("taskGrainSizeWidth", 4);
   m_taskGrainSize.y = getParam<int32_t>("taskGrainSizeHeight", 4);
+
+  bool ignoreAmbientLighting = getParam<bool>("ignoreAmbientLighting", true);
+  if (ignoreAmbientLighting)
+    m_ambientRadiance = 1.f;
 }
 
 PixelSample Renderer::renderSample(