Fix T71576 Mesh error on mutimaterial Meshes on legacy nvidia drivers

Differential Revision: https://developer.blender.org/D6351

3 files changed, 20 insertions, 1 deletions

diff --git a/source/blender/gpu/GPU_extensions.h b/source/blender/gpu/GPU_extensions.h
index 245f7f47510..692cd159fbf 100644
--- a/source/blender/gpu/GPU_extensions.h
+++ b/source/blender/gpu/GPU_extensions.h
@@ -48,6 +48,7 @@ bool GPU_mip_render_workaround(void);
 bool GPU_depth_blitting_workaround(void);
 bool GPU_unused_fb_slot_workaround(void);
 bool GPU_context_local_shaders_workaround(void);
+bool GPU_legacy_nvidia_driver(void);
 bool GPU_crappy_amd_driver(void);
 
 bool GPU_mem_stats_supported(void);
diff --git a/source/blender/gpu/intern/gpu_extensions.c b/source/blender/gpu/intern/gpu_extensions.c
index 33f918559f7..7eb2cd61fda 100644
--- a/source/blender/gpu/intern/gpu_extensions.c
+++ b/source/blender/gpu/intern/gpu_extensions.c
@@ -93,6 +93,8 @@ static struct GPUGlobal {
   /* Some crappy Intel drivers don't work well with shaders created in different
    * rendering contexts. */
   bool context_local_shaders_workaround;
+  /* Unmaintained NVIDIA drivers contain certain bugs we need to workaround. */
+  bool legacy_nvidia_driver;
 } GG = {1, 0};
 
 static void gpu_detect_mip_render_workaround(void)
@@ -216,6 +218,11 @@ bool GPU_context_local_shaders_workaround(void)
   return GG.context_local_shaders_workaround;
 }
 
+bool GPU_legacy_nvidia_driver(void)
+{
+  return GG.legacy_nvidia_driver;
+}
+
 bool GPU_crappy_amd_driver(void)
 {
   /* Currently are the same drivers with the `unused_fb_slot` problem. */
@@ -281,6 +288,14 @@ void gpu_extensions_init(void)
   GG.glew_arb_base_instance_is_supported = GLEW_ARB_base_instance;
   gpu_detect_mip_render_workaround();
 
+  if (GPU_type_matches(GPU_DEVICE_NVIDIA, GPU_OS_ANY, GPU_DRIVER_OFFICIAL)) {
+    char *driver_version_str = strstr(version, "NVIDIA ") + 7;
+    int driver_major_version = (int)strtol(driver_version_str, NULL, 10);
+    if (driver_major_version > 0 && driver_major_version < 400) {
+      GG.legacy_nvidia_driver = true;
+    }
+  }
+
   if (G.debug & G_DEBUG_GPU_FORCE_WORKAROUNDS) {
     printf("\n");
     printf("GPU: Bypassing workaround detection.\n");
diff --git a/source/blender/gpu/intern/gpu_shader.c b/source/blender/gpu/intern/gpu_shader.c
index ae2c7864e36..adbb978dded 100644
--- a/source/blender/gpu/intern/gpu_shader.c
+++ b/source/blender/gpu/intern/gpu_shader.c
@@ -243,11 +243,14 @@ static void gpu_shader_standard_defines(char defines[MAX_DEFINE_LENGTH])
   if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_ANY, GPU_DRIVER_ANY)) {
     strcat(defines, "#define GPU_ATI\n");
     if (GPU_crappy_amd_driver()) {
-      strcat(defines, "#define GPU_DEPRECATED_AMD_DRIVER\n");
+      strcat(defines, "#define GPU_DEPRECATED_AMD\n");
     }
   }
   else if (GPU_type_matches(GPU_DEVICE_NVIDIA, GPU_OS_ANY, GPU_DRIVER_ANY)) {
     strcat(defines, "#define GPU_NVIDIA\n");
+    if (GPU_legacy_nvidia_driver()) {
+      strcat(defines, "#define GPU_DEPRECATED_NVIDIA\n");
+    }
   }
   else if (GPU_type_matches(GPU_DEVICE_INTEL, GPU_OS_ANY, GPU_DRIVER_ANY)) {
     strcat(defines, "#define GPU_INTEL\n");