Fix atmosphere floating point issue

modules/atmosphere/rendering/atmospheredeferredcaster.cpp

@@ -258,6 +258,9 @@ void AtmosphereDeferredcaster::preRaycast(const RenderData& renderData,
             program.setUniform("eyeToModel",
                 glm::mat4(eyeToModel));
 
+            float viewScaling = renderData.camera.scaling();
+            program.setUniform("viewScaling", viewScaling);
+
             glm::mat4 invProjection =
                 glm::inverse(renderData.camera.projectionMatrix());
             program.setUniform("inverseProjection", invProjection);

modules/atmosphere/shaders/atmosphere_deferred_fs.glsl

@@ -77,6 +77,7 @@ uniform int cullAtmosphere;
 uniform float backgroundConstant;
 uniform bool firstPaint;
 uniform float atmExposure;
+uniform float viewScaling;
 
 uniform sampler2D irradianceTexture;
 uniform sampler3D inscatterTexture;
@@ -253,6 +254,9 @@ void dCalculateRayRenderableGlobe(in int mssaSample, out dRay ray) {
     vec4 eyeSpaceCoords = inverseProjection * vec4(clipCoords);
     eyeSpaceCoords.w = 1.0;
 
+    // Scale the vector to avoid floating point inaccuracy.
+    eyeSpaceCoords.xyz *= viewScaling * 1000000.0;
+
     dvec4 objectCoords = eyeToModel * eyeSpaceCoords;
 
     // ============================