diff --git a/ui/zenoedit/viewport/displaywidget.cpp b/ui/zenoedit/viewport/displaywidget.cpp
index 366e67d461..6bdac8b03b 100644
--- a/ui/zenoedit/viewport/displaywidget.cpp
+++ b/ui/zenoedit/viewport/displaywidget.cpp
@@ -1247,13 +1247,13 @@ void DisplayWidget::onNodeSelected(const QModelIndex &subgIdx, const QModelIndex
                 auto _far = scene->camera->m_far;
                 auto fov = scene->camera->m_fov;
                 auto cz = glm::length(scene->camera->m_lodcenter);
-                if (depth != 0) {
-//                    depth = depth * 2 - 1;
-//                    cz = 2 * _near * _far / ((_far + _near) - depth * (_far - _near));
-                    glm::vec4 ndc = {0, 0, depth, 1};
-                    glm::vec4 clip_c = glm::inverse(scene->camera->m_proj) * ndc;
-                    clip_c /= clip_c.w;
-                    cz = -clip_c.z;
+                if (depth != 1) {
+                    depth = depth * 2 - 1;
+                    cz = 2 * _near * _far / ((_far + _near) - depth * (_far - _near));
+//                    glm::vec4 ndc = {0, 0, depth, 1};
+//                    glm::vec4 clip_c = glm::inverse(scene->camera->m_proj) * ndc;
+//                    clip_c /= clip_c.w;
+//                    cz = -clip_c.z;
                 }
                 auto w = scene->camera->m_nx;
                 auto h = scene->camera->m_ny;
diff --git a/zenovis/src/Camera.cpp b/zenovis/src/Camera.cpp
index 95df945c7a..cb7ae06e5d 100644
--- a/zenovis/src/Camera.cpp
+++ b/zenovis/src/Camera.cpp
@@ -54,10 +54,10 @@ void Camera::placeCamera(glm::vec3 pos, glm::vec3 front, glm::vec3 up) {
     m_view = glm::lookAt(m_lodcenter, m_lodcenter + m_lodfront, m_lodup);
     if (m_ortho_mode) {
         auto radius = glm::length(m_lodcenter);
-        m_proj = glm::orthoZO(-radius * getAspect(), radius * getAspect(), -radius,
-                radius, m_far, m_near);
+        m_proj = glm::ortho(-radius * getAspect(), radius * getAspect(), -radius,
+                radius, m_near, m_far);
     } else {
-        m_proj = glm::perspectiveZO(glm::radians(m_fov), getAspect(), m_far, m_near);
+        m_proj = glm::perspective(glm::radians(m_fov), getAspect(), m_near, m_far);
     }
 }
 
@@ -80,7 +80,7 @@ void Camera::updateMatrix() {
 void Camera::setResolution(int nx, int ny) {
     m_nx = nx;
     m_ny = ny;
-    m_proj = glm::perspectiveZO(glm::radians(m_fov), getAspect(), m_far, m_near);
+    m_proj = glm::perspective(glm::radians(m_fov), getAspect(), m_near, m_far);
 }
 void Camera::setResolutionInfo(bool block, int nx, int ny)
 {
diff --git a/zenovis/src/bate/FrameBufferPicker.cpp b/zenovis/src/bate/FrameBufferPicker.cpp
index 2249b22cf5..afb7ad51c3 100644
--- a/zenovis/src/bate/FrameBufferPicker.cpp
+++ b/zenovis/src/bate/FrameBufferPicker.cpp
@@ -312,9 +312,6 @@ struct FrameBufferPicker : IPicker {
                 if (scene->select_mode == PICK_MODE::PICK_OBJECT) {
                     pick_particle = prim->tris->empty() && prim->quads->empty() && prim->polys->empty() && prim->loops->empty();
                     CHECK_GL(glEnable(GL_DEPTH_TEST));
-                    CHECK_GL(glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE));
-                    glDepthFunc(GL_GREATER);
-                    CHECK_GL(glClearDepth(0.0));
 
                     // shader uniform
                     obj_shader->use();
@@ -346,9 +343,6 @@ struct FrameBufferPicker : IPicker {
                 if (scene->select_mode == PICK_MODE::PICK_VERTEX || pick_particle) {
                     // ----- enable depth test -----
                     CHECK_GL(glEnable(GL_DEPTH_TEST));
-                    CHECK_GL(glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE));
-                    glDepthFunc(GL_GREATER);
-                    CHECK_GL(glClearDepth(0.0));
                     // CHECK_GL(glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT));
 
                     // ----- draw points -----
@@ -374,9 +368,6 @@ struct FrameBufferPicker : IPicker {
                 if (scene->select_mode == PICK_MODE::PICK_LINE) {
                     // ----- enable depth test -----
                     CHECK_GL(glEnable(GL_DEPTH_TEST));
-                    CHECK_GL(glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE));
-                    glDepthFunc(GL_GREATER);
-                    CHECK_GL(glClearDepth(0.0));
                     // CHECK_GL(glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT));
                     // ----- draw lines -----
                     prim_shader->use();
@@ -425,9 +416,6 @@ struct FrameBufferPicker : IPicker {
                 if (scene->select_mode == PICK_MODE::PICK_MESH) {
                     // ----- enable depth test -----
                     CHECK_GL(glEnable(GL_DEPTH_TEST));
-                    CHECK_GL(glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE));
-                    glDepthFunc(GL_GREATER);
-                    CHECK_GL(glClearDepth(0.0));
                     // CHECK_GL(glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT));
                     // ----- draw triangles -----
                     prim_shader->use();
diff --git a/zenovis/src/bate/RenderEngineBate.cpp b/zenovis/src/bate/RenderEngineBate.cpp
index 4de7e4e444..a5f601ed38 100644
--- a/zenovis/src/bate/RenderEngineBate.cpp
+++ b/zenovis/src/bate/RenderEngineBate.cpp
@@ -43,9 +43,6 @@ struct RenderEngineBate : RenderEngine {
 
     void draw() override {
         auto guard = setupState();
-        CHECK_GL(glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE));
-        glDepthFunc(GL_GREATER);
-        CHECK_GL(glClearDepth(0.0));
         CHECK_GL(glClearColor(scene->drawOptions->bgcolor.r, scene->drawOptions->bgcolor.g,
                               scene->drawOptions->bgcolor.b, 0.0f));
         CHECK_GL(glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT));