diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index 02100b38..29b479b6 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -334,15 +334,13 @@ void CHyprOpenGLImpl::renderRectWithDamage(wlr_box* box, const CColor& col, pixm
     glUniformMatrix3fv(m_RenderData.pCurrentMonData->m_shQUAD.proj, 1, GL_FALSE, glMatrix);
     glUniform4f(m_RenderData.pCurrentMonData->m_shQUAD.color, col.r / 255.f, col.g / 255.f, col.b / 255.f, col.a / 255.f);
 
-    const auto TOPLEFT = Vector2D(round, round);
-    const auto BOTTOMRIGHT = Vector2D(box->width - round, box->height - round);
+    const auto TOPLEFT = Vector2D(box->x, box->y);
     const auto FULLSIZE = Vector2D(box->width, box->height);
 
     static auto *const PMULTISAMPLEEDGES = &g_pConfigManager->getConfigValuePtr("decoration:multisample_edges")->intValue;
 
     // Rounded corners
     glUniform2f(m_RenderData.pCurrentMonData->m_shQUAD.topLeft, (float)TOPLEFT.x, (float)TOPLEFT.y);
-    glUniform2f(m_RenderData.pCurrentMonData->m_shQUAD.bottomRight, (float)BOTTOMRIGHT.x, (float)BOTTOMRIGHT.y);
     glUniform2f(m_RenderData.pCurrentMonData->m_shQUAD.fullSize, (float)FULLSIZE.x, (float)FULLSIZE.y);
     glUniform1f(m_RenderData.pCurrentMonData->m_shQUAD.radius, round);
     glUniform1i(m_RenderData.pCurrentMonData->m_shQUAD.primitiveMultisample, (int)(*PMULTISAMPLEEDGES == 1 && round != 0));
@@ -438,9 +436,8 @@ void CHyprOpenGLImpl::renderTextureInternalWithDamage(const CTexture& tex, wlr_b
     static auto *const PMULTISAMPLEEDGES = &g_pConfigManager->getConfigValuePtr("decoration:multisample_edges")->intValue;
 
     // Rounded corners
-    glUniform2f(shader->topLeft, (float)TOPLEFT.x, (float)TOPLEFT.y);
-    glUniform2f(shader->bottomRight, (float)BOTTOMRIGHT.x, (float)BOTTOMRIGHT.y);
-    glUniform2f(shader->fullSize, (float)FULLSIZE.x, (float)FULLSIZE.y);
+    glUniform2f(shader->topLeft, pBox->x, pBox->y);
+    glUniform2f(shader->fullSize, pBox->width, pBox->height);
     glUniform1f(shader->radius, round);
     glUniform1i(shader->primitiveMultisample, (int)(*PMULTISAMPLEEDGES == 1 && round != 0 && !noAA));
 
diff --git a/src/render/shaders/Textures.hpp b/src/render/shaders/Textures.hpp
index 42bd0856..a7c53aea 100644
--- a/src/render/shaders/Textures.hpp
+++ b/src/render/shaders/Textures.hpp
@@ -6,10 +6,10 @@ inline static constexpr auto ROUNDED_SHADER_FUNC = [](const std::string colorVar
         return R"#(
 
     // branchless baby!
-    vec2 bottomRight = fullSize - radius;
-    vec2 pixCoord = v_texcoord - vec2(0.5);
-    pixCoord *= (vec2(lessThan(pixCoord, vec2(0.0))) * vec2(-2.0) + vec2(1.0)) * fullSize;
-    pixCoord -= (bottomRight - topLeft) * vec2(0.5);
+    highp vec2 pixCoord = vec2(gl_FragCoord);
+    pixCoord -= (topLeft + fullSize / vec2(2.0));
+    pixCoord *= (vec2(lessThan(pixCoord, vec2(0.0))) * vec2(-2.0) + vec2(1.0));
+    pixCoord -= fullSize * vec2(0.5) - vec2(radius);
 
     if (all(greaterThan(pixCoord, vec2(0.0)))) {