diff options
| author | Jeroen Bakker <jbakker> | 2021-05-26 18:02:32 +0300 |
|---|---|---|
| committer | Jeroen Bakker <jeroen@blender.org> | 2021-05-26 18:03:37 +0300 |
| commit | 8f9599d17e80254928d2d72081a4c7e0dee64038 (patch) | |
| tree | d34ff981e4e0e72ce894042c82587a4266728b16 /source/blender/draw/intern/draw_manager_exec.c | |
| parent | 87055dc71b0d50cd25660969b55cda7d44af6a12 (diff) | |
DrawManager: Use Compute Shader to Update Hair.
This patch will use compute shaders to create the VBO for hair.
The previous implementation uses tranform feedback.
Timings master (transform feedback with GPU_USAGE_STATIC between 0.000069s and 0.000362s
Timings transform feedback with GPU_USAGE_DEVICE_ONLY. between 0.000057s and 0.000122s
Timings compute shader between 0.000032 and 0.000092s
Future improvements:
* Generate hair Index buffer using compute shaders: currently done single threaded on CPU, easy to add as compute shader.
Reviewed By: fclem
Differential Revision: https://developer.blender.org/D11057
Diffstat (limited to 'source/blender/draw/intern/draw_manager_exec.c')
| -rw-r--r-- | source/blender/draw/intern/draw_manager_exec.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/source/blender/draw/intern/draw_manager_exec.c b/source/blender/draw/intern/draw_manager_exec.c index 4c8fcb0e016..f29caebeb84 100644 --- a/source/blender/draw/intern/draw_manager_exec.c +++ b/source/blender/draw/intern/draw_manager_exec.c @@ -29,6 +29,7 @@ #include "BKE_global.h" +#include "GPU_compute.h" #include "GPU_platform.h" #include "GPU_shader.h" #include "GPU_state.h" @@ -672,6 +673,9 @@ static void draw_update_uniforms(DRWShadingGroup *shgroup, *use_tfeedback = GPU_shader_transform_feedback_enable(shgroup->shader, ((GPUVertBuf *)uni->pvalue)); break; + case DRW_UNIFORM_VERTEX_BUFFER_AS_STORAGE: + GPU_vertbuf_bind_as_ssbo((GPUVertBuf *)uni->pvalue, uni->location); + break; /* Legacy/Fallback support. */ case DRW_UNIFORM_BASE_INSTANCE: state->baseinst_loc = uni->location; @@ -1050,6 +1054,12 @@ static void draw_shgroup(DRWShadingGroup *shgroup, DRWState pass_state) cmd->instance_range.inst_count, false); break; + case DRW_CMD_COMPUTE: + GPU_compute_dispatch(shgroup->shader, + cmd->compute.groups_x_len, + cmd->compute.groups_y_len, + cmd->compute.groups_z_len); + break; } } |