diff -U2 -r /var/lib/copr-rpmbuild/results/openmw-git/upstream-unpacked/Source0/openmw-master/apps/openmw/mwrender/postprocessor.cpp /var/lib/copr-rpmbuild/results/openmw-git/srpm-unpacked/openmw-master.tar.bz2-extract/openmw-master/apps/openmw/mwrender/postprocessor.cpp
--- /var/lib/copr-rpmbuild/results/openmw-git/upstream-unpacked/Source0/openmw-master/apps/openmw/mwrender/postprocessor.cpp	2026-08-21 00:18:33.000000000 +0000
+++ /var/lib/copr-rpmbuild/results/openmw-git/srpm-unpacked/openmw-master.tar.bz2-extract/openmw-master/apps/openmw/mwrender/postprocessor.cpp	2026-08-20 21:04:05.000000000 +0000
@@ -462,9 +462,6 @@
         }
 
-        // f16 normals: u8 isn't quite accurate enough even for opaque objects, but now we also
-        //  need to blend terrain normals, and it's additive, so now u8 rounding losses would pile up.
         textures[Tex_Normal]->setSourceFormat(GL_RGB);
-        textures[Tex_Normal]->setSourceType(GL_HALF_FLOAT);
-        textures[Tex_Normal]->setInternalFormat(GL_RGB16F);
+        textures[Tex_Normal]->setInternalFormat(GL_RGB);
 
         textures[Tex_Distortion]->setSourceFormat(GL_RGB);
diff -U2 -r /var/lib/copr-rpmbuild/results/openmw-git/upstream-unpacked/Source0/openmw-master/components/terrain/material.cpp /var/lib/copr-rpmbuild/results/openmw-git/srpm-unpacked/openmw-master.tar.bz2-extract/openmw-master/components/terrain/material.cpp
--- /var/lib/copr-rpmbuild/results/openmw-git/upstream-unpacked/Source0/openmw-master/components/terrain/material.cpp	2026-08-21 00:18:33.000000000 +0000
+++ /var/lib/copr-rpmbuild/results/openmw-git/srpm-unpacked/openmw-master.tar.bz2-extract/openmw-master/components/terrain/material.cpp	2026-08-20 21:04:05.000000000 +0000
@@ -198,6 +198,6 @@
             {
                 stateset->setMode(GL_BLEND, osg::StateAttribute::ON);
-                // This pass needs normals-buffer blending.
-                stateset->setAttribute(new osg::Enablei(GL_BLEND, 1));
+                if (sceneManager->getSupportsNormalsRT())
+                    stateset->setAttribute(new osg::Disablei(GL_BLEND, 1));
                 stateset->setRenderBinDetails(firstLayer ? 0 : 1, "RenderBin");
                 if (!firstLayer)
@@ -264,4 +264,5 @@
                 defineMap["specularMap"] = it->mSpecular ? "1" : "0";
                 defineMap["parallax"] = parallax ? "1" : "0";
+                defineMap["writeNormals"] = (it == layers.end() - 1) ? "1" : "0";
                 defineMap["reconstructNormalZ"] = reconstructNormalZ ? "1" : "0";
                 Stereo::shaderStereoDefines(defineMap);
diff -U2 -r /var/lib/copr-rpmbuild/results/openmw-git/upstream-unpacked/Source0/openmw-master/files/shaders/compatibility/terrain.frag /var/lib/copr-rpmbuild/results/openmw-git/srpm-unpacked/openmw-master.tar.bz2-extract/openmw-master/files/shaders/compatibility/terrain.frag
--- /var/lib/copr-rpmbuild/results/openmw-git/upstream-unpacked/Source0/openmw-master/files/shaders/compatibility/terrain.frag	2026-08-21 00:18:33.000000000 +0000
+++ /var/lib/copr-rpmbuild/results/openmw-git/srpm-unpacked/openmw-master.tar.bz2-extract/openmw-master/files/shaders/compatibility/terrain.frag	2026-08-20 21:04:05.000000000 +0000
@@ -103,7 +103,6 @@
     gl_FragData[0] = applyFogAtDist(gl_FragData[0], euclideanDepth, linearDepth, near, far);
 
-#if !@disableNormals
-    // Terrain normals are now additively blended the same way as terrain color is, thus using color's alpha.
-    gl_FragData[1] = vec4(viewNormal * 0.5 + 0.5, gl_FragData[0].a);
+#if !@disableNormals && @writeNormals
+    gl_FragData[1].xyz = viewNormal * 0.5 + 0.5;
 #endif