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GPU: Disable SSBO support from commandline. 

In heavy scenes containing many hairs/curves and volumetrics
using SSBO can overwrite the binding information of the volumetric
resolve shader. This has been detected during project Heist and is
only reproducable on NVIDIA platform.

This patch adds an debug option to disable SSBOs from the command
line to replace the --debug-gpu-force-workarounds that has been
used as a workaround on the render farm. Reason is that
force workarounds will also add other limitations as well (number
of texture binds for example)
This commit is contained in:
Jeroen Bakker 2022-09-26 09:41:50 +02:00
parent 6075b04cf9
commit 0210c4df17
3 changed files with 24 additions and 8 deletions
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17
source/blender/blenkernel/BKE_global.h
View File

@ -189,15 +189,16 @@ enum {
* assigned to ID datablocks */
G_DEBUG_DEPSGRAPH = (G_DEBUG_DEPSGRAPH_BUILD | G_DEBUG_DEPSGRAPH_EVAL | G_DEBUG_DEPSGRAPH_TAG |
G_DEBUG_DEPSGRAPH_TIME | G_DEBUG_DEPSGRAPH_UUID),
G_DEBUG_SIMDATA = (1 << 15), /* sim debug data display */
G_DEBUG_GPU = (1 << 16), /* gpu debug */
G_DEBUG_IO = (1 << 17), /* IO Debugging (for Collada, ...). */
G_DEBUG_GPU_FORCE_WORKAROUNDS = (1 << 18), /* force gpu workarounds bypassing detections. */
G_DEBUG_XR = (1 << 19), /* XR/OpenXR messages */
G_DEBUG_XR_TIME = (1 << 20), /* XR/OpenXR timing messages */
G_DEBUG_SIMDATA = (1 << 15), /* sim debug data display */
G_DEBUG_GPU = (1 << 16), /* gpu debug */
G_DEBUG_IO = (1 << 17), /* IO Debugging (for Collada, ...). */
G_DEBUG_GPU_FORCE_WORKAROUNDS = (1 << 18), /* force gpu workarounds bypassing detections. */
G_DEBUG_GPU_FORCE_DISABLE_SSBO = (1 << 19), /* force disabling usage of SSBO's */
G_DEBUG_XR = (1 << 20), /* XR/OpenXR messages */
G_DEBUG_XR_TIME = (1 << 21), /* XR/OpenXR timing messages */
G_DEBUG_GHOST = (1 << 21), /* Debug GHOST module. */
G_DEBUG_WINTAB = (1 << 22), /* Debug Wintab. */
G_DEBUG_GHOST = (1 << 22), /* Debug GHOST module. */
G_DEBUG_WINTAB = (1 << 23), /* Debug Wintab. */
};
#define G_DEBUG_ALL \

6
source/blender/gpu/opengl/gl_backend.cc
View File

@ -431,6 +431,12 @@ static void detect_workarounds()
/* Minimum Per-Vertex stride is 1 byte for OpenGL. */
GCaps.minimum_per_vertex_stride = 1;
/* Force disable per feature. */
if (G.debug & G_DEBUG_GPU_FORCE_DISABLE_SSBO) {
printf("\n");
printf("GL: Force disabling SSBO support from commandline arguments.\n");
GCaps.shader_storage_buffer_objects_support = false;
}
} // namespace blender::gpu
/** Internal capabilities. */

9
source/creator/creator_args.c
View File

@ -579,6 +579,7 @@ static int arg_handle_print_help(int UNUSED(argc), const char **UNUSED(argv), vo
BLI_args_print_arg_doc(ba, "--debug-wintab");
BLI_args_print_arg_doc(ba, "--debug-gpu");
BLI_args_print_arg_doc(ba, "--debug-gpu-force-workarounds");
BLI_args_print_arg_doc(ba, "--debug-gpu-disable-ssbo");
BLI_args_print_arg_doc(ba, "--debug-wm");
# ifdef WITH_XR_OPENXR
BLI_args_print_arg_doc(ba, "--debug-xr");
@ -990,6 +991,9 @@ static const char arg_handle_debug_mode_generic_set_doc_depsgraph_uuid[] =
static const char arg_handle_debug_mode_generic_set_doc_gpu_force_workarounds[] =
"\n\t"
"Enable workarounds for typical GPU issues and disable all GPU extensions.";
static const char arg_handle_debug_mode_generic_set_doc_gpu_disable_ssbo[] =
"\n\t"
"Disable usage of shader storage buffer objects.";
static int arg_handle_debug_mode_generic_set(int UNUSED(argc),
const char **UNUSED(argv),
@ -2212,6 +2216,11 @@ void main_args_setup(bContext *C, bArgs *ba)
"--debug-gpu-force-workarounds",
CB_EX(arg_handle_debug_mode_generic_set, gpu_force_workarounds),
(void *)G_DEBUG_GPU_FORCE_WORKAROUNDS);
BLI_args_add(ba,
NULL,
"--debug-gpu-disable-ssbo",
CB_EX(arg_handle_debug_mode_generic_set, gpu_disable_ssbo),
(void *)G_DEBUG_GPU_FORCE_DISABLE_SSBO);
BLI_args_add(ba, NULL, "--debug-exit-on-error", CB(arg_handle_debug_exit_on_error), NULL);
BLI_args_add(ba, NULL, "--verbose", CB(arg_handle_verbosity_set), NULL);