diff options
| author | Jeroen Bakker <jbakker> | 2021-09-24 08:42:36 +0300 |
|---|---|---|
| committer | Jeroen Bakker <jeroen@blender.org> | 2021-09-24 08:44:22 +0300 |
| commit | 6a88f83d679f281d7adb3798ab4770069a63c2da (patch) | |
| tree | 02b6e3870e7651c40c63eb23285e7f2ff3f2507e /source/blender/gpu/intern/gpu_codegen.c | |
| parent | 0f764ade1a2fd8aa9c462dd5850e8be52aa203f5 (diff) | |
Hair Info Length Attribute
Goal is to add the length attribute to the Hair Info node, for better control over color gradients or similar along the hair.
Reviewed By: #eevee_viewport, brecht
Differential Revision: https://developer.blender.org/D10481
Diffstat (limited to 'source/blender/gpu/intern/gpu_codegen.c')
| -rw-r--r-- | source/blender/gpu/intern/gpu_codegen.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/source/blender/gpu/intern/gpu_codegen.c b/source/blender/gpu/intern/gpu_codegen.c index bb1ebc0e85d..bbe939b546b 100644 --- a/source/blender/gpu/intern/gpu_codegen.c +++ b/source/blender/gpu/intern/gpu_codegen.c @@ -656,6 +656,8 @@ static const char *attr_prefix_get(CustomDataType type) return "c"; case CD_AUTO_FROM_NAME: return "a"; + case CD_HAIRLENGTH: + return "hl"; default: BLI_assert_msg(0, "GPUVertAttr Prefix type not found : This should not happen!"); return ""; @@ -675,7 +677,12 @@ static char *code_generate_interface(GPUNodeGraph *graph, int builtins) BLI_dynstr_append(ds, "\n"); LISTBASE_FOREACH (GPUMaterialAttribute *, attr, &graph->attributes) { - BLI_dynstr_appendf(ds, "%s var%d;\n", gpu_data_type_to_string(attr->gputype), attr->id); + if (attr->type == CD_HAIRLENGTH) { + BLI_dynstr_appendf(ds, "float var%d;\n", attr->id); + } + else { + BLI_dynstr_appendf(ds, "%s var%d;\n", gpu_data_type_to_string(attr->gputype), attr->id); + } } if (builtins & GPU_BARYCENTRIC_TEXCO) { BLI_dynstr_append(ds, "vec2 barycentricTexCo;\n"); @@ -711,6 +718,11 @@ static char *code_generate_vertex(GPUNodeGraph *graph, BLI_dynstr_append(ds, datatoc_gpu_shader_common_obinfos_lib_glsl); BLI_dynstr_append(ds, "DEFINE_ATTR(vec4, orco);\n"); } + if (attr->type == CD_HAIRLENGTH) + { + BLI_dynstr_append(ds, datatoc_gpu_shader_common_obinfos_lib_glsl); + BLI_dynstr_append(ds, "DEFINE_ATTR(float, hairLen);\n"); + } else if (attr->name[0] == '\0') { BLI_dynstr_appendf(ds, "DEFINE_ATTR(%s, %s);\n", type_str, prefix); BLI_dynstr_appendf(ds, "#define att%d %s\n", attr->id, prefix); @@ -755,6 +767,10 @@ static char *code_generate_vertex(GPUNodeGraph *graph, BLI_dynstr_appendf( ds, " var%d = orco_get(position, modelmatinv, OrcoTexCoFactors, orco);\n", attr->id); } + else if (attr->type == CD_HAIRLENGTH) { + BLI_dynstr_appendf( + ds, " var%d = hair_len_get(hair_get_strand_id(), hairLen);\n", attr->id); + } else { const char *type_str = gpu_data_type_to_string(attr->gputype); BLI_dynstr_appendf(ds, " var%d = GET_ATTR(%s, att%d);\n", attr->id, type_str, attr->id); |