diff options
Diffstat (limited to 'source/blender/draw')
-rw-r--r-- | source/blender/draw/CMakeLists.txt | 1 | ||||
-rw-r--r-- | source/blender/draw/intern/DRW_render.h | 7 | ||||
-rw-r--r-- | source/blender/draw/intern/draw_cache_impl_hair.c | 3 | ||||
-rw-r--r-- | source/blender/draw/intern/draw_hair.c | 135 | ||||
-rw-r--r-- | source/blender/draw/intern/draw_manager.h | 13 | ||||
-rw-r--r-- | source/blender/draw/intern/draw_manager_data.c | 36 | ||||
-rw-r--r-- | source/blender/draw/intern/draw_manager_exec.c | 10 | ||||
-rw-r--r-- | source/blender/draw/intern/shaders/common_hair_lib.glsl | 78 | ||||
-rw-r--r-- | source/blender/draw/intern/shaders/common_hair_refine_comp.glsl | 24 | ||||
-rw-r--r-- | source/blender/draw/intern/shaders/common_hair_refine_vert.glsl | 45 |
10 files changed, 82 insertions, 270 deletions
diff --git a/source/blender/draw/CMakeLists.txt b/source/blender/draw/CMakeLists.txt index 95c0f5d300c..045adf4b380 100644 --- a/source/blender/draw/CMakeLists.txt +++ b/source/blender/draw/CMakeLists.txt @@ -321,7 +321,6 @@ data_to_c_simple(intern/shaders/common_globals_lib.glsl SRC) data_to_c_simple(intern/shaders/common_pointcloud_lib.glsl SRC) data_to_c_simple(intern/shaders/common_hair_lib.glsl SRC) data_to_c_simple(intern/shaders/common_hair_refine_vert.glsl SRC) -data_to_c_simple(intern/shaders/common_hair_refine_comp.glsl SRC) data_to_c_simple(intern/shaders/common_math_lib.glsl SRC) data_to_c_simple(intern/shaders/common_math_geom_lib.glsl SRC) data_to_c_simple(intern/shaders/common_view_lib.glsl SRC) diff --git a/source/blender/draw/intern/DRW_render.h b/source/blender/draw/intern/DRW_render.h index 5071658fd82..2545cfa65dc 100644 --- a/source/blender/draw/intern/DRW_render.h +++ b/source/blender/draw/intern/DRW_render.h @@ -438,10 +438,6 @@ void DRW_shgroup_call_range( void DRW_shgroup_call_instance_range( DRWShadingGroup *shgroup, Object *ob, struct GPUBatch *geom, uint i_sta, uint i_ct); -void DRW_shgroup_call_compute(DRWShadingGroup *shgroup, - int groups_x_len, - int groups_y_len, - int groups_z_len); void DRW_shgroup_call_procedural_points(DRWShadingGroup *sh, Object *ob, uint point_count); void DRW_shgroup_call_procedural_lines(DRWShadingGroup *sh, Object *ob, uint line_count); void DRW_shgroup_call_procedural_triangles(DRWShadingGroup *sh, Object *ob, uint tri_count); @@ -579,9 +575,6 @@ void DRW_shgroup_uniform_vec4_array_copy(DRWShadingGroup *shgroup, const char *name, const float (*value)[4], int arraysize); -void DRW_shgroup_vertex_buffer(DRWShadingGroup *shgroup, - const char *name, - struct GPUVertBuf *vertex_buffer); bool DRW_shgroup_is_empty(DRWShadingGroup *shgroup); diff --git a/source/blender/draw/intern/draw_cache_impl_hair.c b/source/blender/draw/intern/draw_cache_impl_hair.c index 6424b21666d..fd28ac00186 100644 --- a/source/blender/draw/intern/draw_cache_impl_hair.c +++ b/source/blender/draw/intern/draw_cache_impl_hair.c @@ -243,8 +243,7 @@ static void hair_batch_cache_ensure_procedural_final_points(ParticleHairCache *c GPUVertFormat format = {0}; GPU_vertformat_attr_add(&format, "pos", GPU_COMP_F32, 4, GPU_FETCH_FLOAT); - cache->final[subdiv].proc_buf = GPU_vertbuf_create_with_format_ex(&format, - GPU_USAGE_DEVICE_ONLY); + cache->final[subdiv].proc_buf = GPU_vertbuf_create_with_format(&format); /* Create a destination buffer for the transform feedback. Sized appropriately */ /* Those are points! not line segments. */ diff --git a/source/blender/draw/intern/draw_hair.c b/source/blender/draw/intern/draw_hair.c index 258777b34fb..bca227a24e2 100644 --- a/source/blender/draw/intern/draw_hair.c +++ b/source/blender/draw/intern/draw_hair.c @@ -36,28 +36,15 @@ #include "BKE_duplilist.h" #include "GPU_batch.h" -#include "GPU_capabilities.h" -#include "GPU_compute.h" #include "GPU_shader.h" -#include "GPU_texture.h" #include "GPU_vertex_buffer.h" #include "draw_hair_private.h" #ifndef __APPLE__ # define USE_TRANSFORM_FEEDBACK -# define USE_COMPUTE_SHADERS #endif -BLI_INLINE bool drw_hair_use_compute_shaders(void) -{ -#ifdef USE_COMPUTE_SHADERS - return GPU_compute_shader_support(); -#else - return false; -#endif -} - typedef enum ParticleRefineShader { PART_REFINE_CATMULL_ROM = 0, PART_REFINE_MAX_SHADER, @@ -84,7 +71,6 @@ static DRWPass *g_tf_pass; /* XXX can be a problem with multiple DRWManager in t extern char datatoc_common_hair_lib_glsl[]; extern char datatoc_common_hair_refine_vert_glsl[]; -extern char datatoc_common_hair_refine_comp_glsl[]; extern char datatoc_gpu_shader_3D_smooth_color_frag_glsl[]; static GPUShader *hair_refine_shader_get(ParticleRefineShader sh) @@ -93,26 +79,15 @@ static GPUShader *hair_refine_shader_get(ParticleRefineShader sh) return g_refine_shaders[sh]; } -#ifdef USE_COMPUTE_SHADERS - const bool do_compute = drw_hair_use_compute_shaders(); - if (do_compute) { - g_refine_shaders[sh] = GPU_shader_create_compute(datatoc_common_hair_refine_comp_glsl, - datatoc_common_hair_lib_glsl, - "#define HAIR_PHASE_SUBDIV\n", - __func__); - return g_refine_shaders[sh]; - } -#endif + char *vert_with_lib = BLI_string_joinN(datatoc_common_hair_lib_glsl, + datatoc_common_hair_refine_vert_glsl); #ifdef USE_TRANSFORM_FEEDBACK - char *shader_src = BLI_string_joinN(datatoc_common_hair_lib_glsl, - datatoc_common_hair_refine_vert_glsl); const char *var_names[1] = {"finalColor"}; g_refine_shaders[sh] = DRW_shader_create_with_transform_feedback( - shader_src, NULL, "#define HAIR_PHASE_SUBDIV\n", GPU_SHADER_TFB_POINTS, var_names, 1); - + vert_with_lib, NULL, "#define HAIR_PHASE_SUBDIV\n", GPU_SHADER_TFB_POINTS, var_names, 1); #else - g_refine_shaders[sh] = DRW_shader_create(shader_src, + g_refine_shaders[sh] = DRW_shader_create(vert_with_lib, NULL, datatoc_gpu_shader_3D_smooth_color_frag_glsl, "#define blender_srgb_to_framebuffer_space(a) a\n" @@ -120,14 +95,14 @@ static GPUShader *hair_refine_shader_get(ParticleRefineShader sh) "#define TF_WORKAROUND\n"); #endif - MEM_freeN(shader_src); + MEM_freeN(vert_with_lib); return g_refine_shaders[sh]; } void DRW_hair_init(void) { -#if defined(USE_TRANSFORM_FEEDBACK) || defined(USE_COMPUTE_SHADERS) +#ifdef USE_TRANSFORM_FEEDBACK g_tf_pass = DRW_pass_create("Update Hair Pass", 0); #else g_tf_pass = DRW_pass_create("Update Hair Pass", DRW_STATE_WRITE_COLOR); @@ -150,67 +125,6 @@ void DRW_hair_init(void) } } -static void drw_hair_particle_cache_shgrp_attach_resources(DRWShadingGroup *shgrp, - ParticleHairCache *cache, - const int subdiv) -{ - DRW_shgroup_uniform_texture(shgrp, "hairPointBuffer", cache->point_tex); - DRW_shgroup_uniform_texture(shgrp, "hairStrandBuffer", cache->strand_tex); - DRW_shgroup_uniform_texture(shgrp, "hairStrandSegBuffer", cache->strand_seg_tex); - DRW_shgroup_uniform_int(shgrp, "hairStrandsRes", &cache->final[subdiv].strands_res, 1); -} - -static void drw_hair_particle_cache_update_compute(ParticleHairCache *cache, const int subdiv) -{ - const int strands_len = cache->strands_len; - const int final_points_len = cache->final[subdiv].strands_res * strands_len; - if (final_points_len > 0) { - GPUShader *shader = hair_refine_shader_get(PART_REFINE_CATMULL_ROM); - DRWShadingGroup *shgrp = DRW_shgroup_create(shader, g_tf_pass); - drw_hair_particle_cache_shgrp_attach_resources(shgrp, cache, subdiv); - DRW_shgroup_vertex_buffer(shgrp, "hairPointOutputBuffer", cache->final[subdiv].proc_buf); - - const int max_strands_per_call = GPU_max_work_group_count(0); - int strands_start = 0; - while (strands_start < strands_len) { - int batch_strands_len = MIN2(strands_len - strands_start, max_strands_per_call); - DRWShadingGroup *subgroup = DRW_shgroup_create_sub(shgrp); - DRW_shgroup_uniform_int_copy(subgroup, "hairStrandOffset", strands_start); - DRW_shgroup_call_compute(subgroup, batch_strands_len, cache->final[subdiv].strands_res, 1); - strands_start += batch_strands_len; - } - } -} - -static void drw_hair_particle_cache_update_transform_feedback(ParticleHairCache *cache, - const int subdiv) -{ - const int final_points_len = cache->final[subdiv].strands_res * cache->strands_len; - if (final_points_len > 0) { - GPUShader *tf_shader = hair_refine_shader_get(PART_REFINE_CATMULL_ROM); - -#ifdef USE_TRANSFORM_FEEDBACK - DRWShadingGroup *tf_shgrp = DRW_shgroup_transform_feedback_create( - tf_shader, g_tf_pass, cache->final[subdiv].proc_buf); -#else - DRWShadingGroup *tf_shgrp = DRW_shgroup_create(tf_shader, g_tf_pass); - - ParticleRefineCall *pr_call = MEM_mallocN(sizeof(*pr_call), __func__); - pr_call->next = g_tf_calls; - pr_call->vbo = cache->final[subdiv].proc_buf; - pr_call->shgrp = tf_shgrp; - pr_call->vert_len = final_points_len; - g_tf_calls = pr_call; - DRW_shgroup_uniform_int(tf_shgrp, "targetHeight", &g_tf_target_height, 1); - DRW_shgroup_uniform_int(tf_shgrp, "targetWidth", &g_tf_target_width, 1); - DRW_shgroup_uniform_int(tf_shgrp, "idOffset", &g_tf_id_offset, 1); -#endif - - drw_hair_particle_cache_shgrp_attach_resources(tf_shgrp, cache, subdiv); - DRW_shgroup_call_procedural_points(tf_shgrp, NULL, final_points_len); - } -} - static ParticleHairCache *drw_hair_particle_cache_get( Object *object, ParticleSystem *psys, ModifierData *md, int subdiv, int thickness_res) { @@ -226,11 +140,32 @@ static ParticleHairCache *drw_hair_particle_cache_get( } if (update) { - if (drw_hair_use_compute_shaders()) { - drw_hair_particle_cache_update_compute(cache, subdiv); - } - else { - drw_hair_particle_cache_update_transform_feedback(cache, subdiv); + int final_points_len = cache->final[subdiv].strands_res * cache->strands_len; + if (final_points_len > 0) { + GPUShader *tf_shader = hair_refine_shader_get(PART_REFINE_CATMULL_ROM); + +#ifdef USE_TRANSFORM_FEEDBACK + DRWShadingGroup *tf_shgrp = DRW_shgroup_transform_feedback_create( + tf_shader, g_tf_pass, cache->final[subdiv].proc_buf); +#else + DRWShadingGroup *tf_shgrp = DRW_shgroup_create(tf_shader, g_tf_pass); + + ParticleRefineCall *pr_call = MEM_mallocN(sizeof(*pr_call), __func__); + pr_call->next = g_tf_calls; + pr_call->vbo = cache->final[subdiv].proc_buf; + pr_call->shgrp = tf_shgrp; + pr_call->vert_len = final_points_len; + g_tf_calls = pr_call; + DRW_shgroup_uniform_int(tf_shgrp, "targetHeight", &g_tf_target_height, 1); + DRW_shgroup_uniform_int(tf_shgrp, "targetWidth", &g_tf_target_width, 1); + DRW_shgroup_uniform_int(tf_shgrp, "idOffset", &g_tf_id_offset, 1); +#endif + + DRW_shgroup_uniform_texture(tf_shgrp, "hairPointBuffer", cache->point_tex); + DRW_shgroup_uniform_texture(tf_shgrp, "hairStrandBuffer", cache->strand_tex); + DRW_shgroup_uniform_texture(tf_shgrp, "hairStrandSegBuffer", cache->strand_seg_tex); + DRW_shgroup_uniform_int(tf_shgrp, "hairStrandsRes", &cache->final[subdiv].strands_res, 1); + DRW_shgroup_call_procedural_points(tf_shgrp, NULL, final_points_len); } } return cache; @@ -432,11 +367,9 @@ void DRW_hair_update(void) MEM_freeN(data); GPU_framebuffer_free(fb); #else - /* Just render the pass when using compute shaders or transform feedback. */ + /* TODO(fclem): replace by compute shader. */ + /* Just render using transform feedback. */ DRW_draw_pass(g_tf_pass); - if (drw_hair_use_compute_shaders()) { - GPU_memory_barrier(GPU_BARRIER_SHADER_STORAGE); - } #endif } diff --git a/source/blender/draw/intern/draw_manager.h b/source/blender/draw/intern/draw_manager.h index d4e22c83798..84bc0327aa2 100644 --- a/source/blender/draw/intern/draw_manager.h +++ b/source/blender/draw/intern/draw_manager.h @@ -187,10 +187,6 @@ typedef enum { DRW_CMD_DRAW_INSTANCE = 2, DRW_CMD_DRAW_INSTANCE_RANGE = 3, DRW_CMD_DRAW_PROCEDURAL = 4, - - /* Compute Commands. */ - DRW_CMD_COMPUTE = 8, - /* Other Commands */ DRW_CMD_CLEAR = 12, DRW_CMD_DRWSTATE = 13, @@ -228,12 +224,6 @@ typedef struct DRWCommandDrawInstanceRange { uint inst_count; } DRWCommandDrawInstanceRange; -typedef struct DRWCommandCompute { - int groups_x_len; - int groups_y_len; - int groups_z_len; -} DRWCommandCompute; - typedef struct DRWCommandDrawProcedural { GPUBatch *batch; DRWResourceHandle handle; @@ -270,7 +260,6 @@ typedef union DRWCommand { DRWCommandDrawInstance instance; DRWCommandDrawInstanceRange instance_range; DRWCommandDrawProcedural procedural; - DRWCommandCompute compute; DRWCommandSetMutableState state; DRWCommandSetStencil stencil; DRWCommandSetSelectID select_id; @@ -285,7 +274,6 @@ struct DRWCallBuffer { }; /** Used by #DRWUniform.type */ -/* TODO(jbakker): rename to DRW_RESOURCE/DRWResourceType. */ typedef enum { DRW_UNIFORM_INT = 0, DRW_UNIFORM_INT_COPY, @@ -298,7 +286,6 @@ typedef enum { DRW_UNIFORM_BLOCK, DRW_UNIFORM_BLOCK_REF, DRW_UNIFORM_TFEEDBACK_TARGET, - DRW_UNIFORM_VERTEX_BUFFER_AS_STORAGE, /** Per drawcall uniforms/UBO */ DRW_UNIFORM_BLOCK_OBMATS, DRW_UNIFORM_BLOCK_OBINFOS, diff --git a/source/blender/draw/intern/draw_manager_data.c b/source/blender/draw/intern/draw_manager_data.c index 3b852e7f8c8..6bdc5305fed 100644 --- a/source/blender/draw/intern/draw_manager_data.c +++ b/source/blender/draw/intern/draw_manager_data.c @@ -47,7 +47,6 @@ #endif #include "GPU_buffers.h" -#include "GPU_capabilities.h" #include "GPU_material.h" #include "GPU_uniform_buffer.h" @@ -447,19 +446,6 @@ void DRW_shgroup_uniform_vec4_array_copy(DRWShadingGroup *shgroup, } } -void DRW_shgroup_vertex_buffer(DRWShadingGroup *shgroup, - const char *name, - GPUVertBuf *vertex_buffer) -{ - int location = GPU_shader_get_ssbo(shgroup->shader, name); - if (location == -1) { - BLI_assert(false && "Unable to locate binding of shader storage buffer objects."); - return; - } - drw_shgroup_uniform_create_ex( - shgroup, location, DRW_UNIFORM_VERTEX_BUFFER_AS_STORAGE, vertex_buffer, 0, 0, 1); -} - /** \} */ /* -------------------------------------------------------------------- */ @@ -714,17 +700,6 @@ static void drw_command_draw_intance_range( cmd->inst_count = count; } -static void drw_command_compute(DRWShadingGroup *shgroup, - int groups_x_len, - int groups_y_len, - int groups_z_len) -{ - DRWCommandCompute *cmd = drw_command_create(shgroup, DRW_CMD_COMPUTE); - cmd->groups_x_len = groups_x_len; - cmd->groups_y_len = groups_y_len; - cmd->groups_z_len = groups_z_len; -} - static void drw_command_draw_procedural(DRWShadingGroup *shgroup, GPUBatch *batch, DRWResourceHandle handle, @@ -840,17 +815,6 @@ void DRW_shgroup_call_instance_range( drw_command_draw_intance_range(shgroup, geom, handle, i_sta, i_ct); } -void DRW_shgroup_call_compute(DRWShadingGroup *shgroup, - int groups_x_len, - int groups_y_len, - int groups_z_len) -{ - BLI_assert(groups_x_len > 0 && groups_y_len > 0 && groups_z_len > 0); - BLI_assert(GPU_compute_shader_support()); - - drw_command_compute(shgroup, groups_x_len, groups_y_len, groups_z_len); -} - static void drw_shgroup_call_procedural_add_ex(DRWShadingGroup *shgroup, GPUBatch *geom, Object *ob, diff --git a/source/blender/draw/intern/draw_manager_exec.c b/source/blender/draw/intern/draw_manager_exec.c index f29caebeb84..4c8fcb0e016 100644 --- a/source/blender/draw/intern/draw_manager_exec.c +++ b/source/blender/draw/intern/draw_manager_exec.c @@ -29,7 +29,6 @@ #include "BKE_global.h" -#include "GPU_compute.h" #include "GPU_platform.h" #include "GPU_shader.h" #include "GPU_state.h" @@ -673,9 +672,6 @@ 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; @@ -1054,12 +1050,6 @@ 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; } } diff --git a/source/blender/draw/intern/shaders/common_hair_lib.glsl b/source/blender/draw/intern/shaders/common_hair_lib.glsl index 02c335ddae2..8684d82f228 100644 --- a/source/blender/draw/intern/shaders/common_hair_lib.glsl +++ b/source/blender/draw/intern/shaders/common_hair_lib.glsl @@ -28,9 +28,6 @@ uniform bool hairCloseTip = true; uniform vec4 hairDupliMatrix[4]; -/* Strand batch offset when used in compute shaders. */ -uniform int hairStrandOffset = 0; - /* -- Per control points -- */ uniform samplerBuffer hairPointBuffer; /* RGBA32F */ #define point_position xyz @@ -46,37 +43,13 @@ uniform usamplerBuffer hairStrandSegBuffer; /* R16UI */ /* -- Subdivision stage -- */ /** - * We use a transform feedback or compute shader to preprocess the strands and add more subdivision - * to it. For the moment these are simple smooth interpolation but one could hope to see the full + * We use a transform feedback to preprocess the strands and add more subdivision to it. + * For the moment these are simple smooth interpolation but one could hope to see the full * children particle modifiers being evaluated at this stage. * * If no more subdivision is needed, we can skip this step. */ -#ifdef GPU_VERTEX_SHADER -float hair_get_local_time() -{ - return float(gl_VertexID % hairStrandsRes) / float(hairStrandsRes - 1); -} - -int hair_get_id() -{ - return gl_VertexID / hairStrandsRes; -} -#endif - -#ifdef GPU_COMPUTE_SHADER -float hair_get_local_time() -{ - return float(gl_GlobalInvocationID.y) / float(hairStrandsRes - 1); -} - -int hair_get_id() -{ - return int(gl_GlobalInvocationID.x) + hairStrandOffset; -} -#endif - #ifdef HAIR_PHASE_SUBDIV int hair_get_base_id(float local_time, int strand_segments, out float interp_time) { @@ -91,9 +64,9 @@ int hair_get_base_id(float local_time, int strand_segments, out float interp_tim void hair_get_interp_attrs( out vec4 data0, out vec4 data1, out vec4 data2, out vec4 data3, out float interp_time) { - float local_time = hair_get_local_time(); + float local_time = float(gl_VertexID % hairStrandsRes) / float(hairStrandsRes - 1); - int hair_id = hair_get_id(); + int hair_id = gl_VertexID / hairStrandsRes; int strand_offset = int(texelFetch(hairStrandBuffer, hair_id).x); int strand_segments = int(texelFetch(hairStrandSegBuffer, hair_id).x); @@ -123,7 +96,6 @@ void hair_get_interp_attrs( */ #if !defined(HAIR_PHASE_SUBDIV) && defined(GPU_VERTEX_SHADER) - int hair_get_strand_id(void) { return gl_VertexID / (hairStrandsRes * hairThicknessRes); @@ -255,45 +227,3 @@ vec2 hair_resolve_barycentric(vec2 vert_barycentric) return vec2(1.0 - vert_barycentric.x, 0.0); } } - -/* Hair interpolation functions. */ -vec4 hair_get_weights_cardinal(float t) -{ - float t2 = t * t; - float t3 = t2 * t; -#if defined(CARDINAL) - float fc = 0.71; -#else /* defined(CATMULL_ROM) */ - float fc = 0.5; -#endif - - vec4 weights; - /* GLSL Optimized version of key_curve_position_weights() */ - float fct = t * fc; - float fct2 = t2 * fc; - float fct3 = t3 * fc; - weights.x = (fct2 * 2.0 - fct3) - fct; - weights.y = (t3 * 2.0 - fct3) + (-t2 * 3.0 + fct2) + 1.0; - weights.z = (-t3 * 2.0 + fct3) + (t2 * 3.0 - (2.0 * fct2)) + fct; - weights.w = fct3 - fct2; - return weights; -} - -/* TODO(fclem): This one is buggy, find why. (it's not the optimization!!) */ -vec4 hair_get_weights_bspline(float t) -{ - float t2 = t * t; - float t3 = t2 * t; - - vec4 weights; - /* GLSL Optimized version of key_curve_position_weights() */ - weights.xz = vec2(-0.16666666, -0.5) * t3 + (0.5 * t2 + 0.5 * vec2(-t, t) + 0.16666666); - weights.y = (0.5 * t3 - t2 + 0.66666666); - weights.w = (0.16666666 * t3); - return weights; -} - -vec4 hair_interp_data(vec4 v0, vec4 v1, vec4 v2, vec4 v3, vec4 w) -{ - return v0 * w.x + v1 * w.y + v2 * w.z + v3 * w.w; -} diff --git a/source/blender/draw/intern/shaders/common_hair_refine_comp.glsl b/source/blender/draw/intern/shaders/common_hair_refine_comp.glsl deleted file mode 100644 index 4dcde4b0245..00000000000 --- a/source/blender/draw/intern/shaders/common_hair_refine_comp.glsl +++ /dev/null @@ -1,24 +0,0 @@ - -/* - * To be compiled with common_hair_lib.glsl. - */ - -layout(local_size_x = 1, local_size_y = 1) in; -layout(std430, binding = 0) writeonly buffer hairPointOutputBuffer -{ - vec4 posTime[]; -} -out_vertbuf; - -void main(void) -{ - float interp_time; - vec4 data0, data1, data2, data3; - hair_get_interp_attrs(data0, data1, data2, data3, interp_time); - - vec4 weights = hair_get_weights_cardinal(interp_time); - vec4 result = hair_interp_data(data0, data1, data2, data3, weights); - - uint index = uint(hair_get_id() * hairStrandsRes) + gl_GlobalInvocationID.y; - out_vertbuf.posTime[index] = result; -} diff --git a/source/blender/draw/intern/shaders/common_hair_refine_vert.glsl b/source/blender/draw/intern/shaders/common_hair_refine_vert.glsl index 371d43827b9..3f5e3f8226f 100644 --- a/source/blender/draw/intern/shaders/common_hair_refine_vert.glsl +++ b/source/blender/draw/intern/shaders/common_hair_refine_vert.glsl @@ -3,6 +3,47 @@ out vec4 finalColor; +vec4 get_weights_cardinal(float t) +{ + float t2 = t * t; + float t3 = t2 * t; +#if defined(CARDINAL) + float fc = 0.71; +#else /* defined(CATMULL_ROM) */ + float fc = 0.5; +#endif + + vec4 weights; + /* GLSL Optimized version of key_curve_position_weights() */ + float fct = t * fc; + float fct2 = t2 * fc; + float fct3 = t3 * fc; + weights.x = (fct2 * 2.0 - fct3) - fct; + weights.y = (t3 * 2.0 - fct3) + (-t2 * 3.0 + fct2) + 1.0; + weights.z = (-t3 * 2.0 + fct3) + (t2 * 3.0 - (2.0 * fct2)) + fct; + weights.w = fct3 - fct2; + return weights; +} + +/* TODO(fclem): This one is buggy, find why. (it's not the optimization!!) */ +vec4 get_weights_bspline(float t) +{ + float t2 = t * t; + float t3 = t2 * t; + + vec4 weights; + /* GLSL Optimized version of key_curve_position_weights() */ + weights.xz = vec2(-0.16666666, -0.5) * t3 + (0.5 * t2 + 0.5 * vec2(-t, t) + 0.16666666); + weights.y = (0.5 * t3 - t2 + 0.66666666); + weights.w = (0.16666666 * t3); + return weights; +} + +vec4 interp_data(vec4 v0, vec4 v1, vec4 v2, vec4 v3, vec4 w) +{ + return v0 * w.x + v1 * w.y + v2 * w.z + v3 * w.w; +} + #ifdef TF_WORKAROUND uniform int targetWidth; uniform int targetHeight; @@ -15,8 +56,8 @@ void main(void) vec4 data0, data1, data2, data3; hair_get_interp_attrs(data0, data1, data2, data3, interp_time); - vec4 weights = hair_get_weights_cardinal(interp_time); - finalColor = hair_interp_data(data0, data1, data2, data3, weights); + vec4 weights = get_weights_cardinal(interp_time); + finalColor = interp_data(data0, data1, data2, data3, weights); #ifdef TF_WORKAROUND int id = gl_VertexID - idOffset; |