Fix compilation of geometry grass sample with latest glow

samples/wip/geometry-grass/GeometryGrassSample.cc

@@ -306,7 +306,11 @@ void GeometryGrassSample::init()
         mGrassUBO = UniformBuffer::create();
         mGrassUBO->bind().setData(mGrassUBOData);
 
-        mTrampleSSBOData.mowerPos = glm::vec2(0);
+
+        mTrampleSSBOData.mowerPosX = 0;
+        mTrampleSSBOData.mowerPosY = 0;
+        //        mTrampleSSBOData.mowerPos = glm::vec2(0);
+
         static auto constexpr mowerRange = .75f;
         mTrampleSSBOData.mowerRangeSquared = mowerRange * mowerRange;
         mTrampleSSBO = ShaderStorageBuffer::create();
@@ -381,8 +385,9 @@ void GeometryGrassSample::onRenderOpaquePass(glow::pipeline::RenderContext const
 {
     // UBO + SSBO Update
     {
-        mTrampleSSBOData.mowerPos = mMowerPosition;
-        mTrampleSSBO->bind().setData(mTrampleSSBOData);
+        mTrampleSSBOData.mowerPosX = mMowerPosition.x;
+        mTrampleSSBOData.mowerPosY = mMowerPosition.y;
+        mTrampleSSBO->bind().setData(mTrampleSSBOData, GL_STREAM_DRAW);
 
         applyConfigToUBO();
         mGrassUBOData.cameraUp = getCamera()->handle.getTransform().getUpVector();
@@ -390,7 +395,7 @@ void GeometryGrassSample::onRenderOpaquePass(glow::pipeline::RenderContext const
         mGrassUBOData.cleanVp = info.camData.cleanVp;
         mGrassUBOData.prevCleanVp = info.camData.prevCleanVp;
         mGrassUBOData.runtime = getCurrentTime();
-        mGrassUBO->bind().setData(mGrassUBOData);
+        mGrassUBO->bind().setData(mGrassUBOData, GL_STREAM_DRAW);
     }
 
     // Trampling and mowing