Can you help me please? How to draw octahedral shape from the parent head to child head for bones? #119530

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Alexey Zakharchenko · 2024-03-15T17:57:49+01:00

2024-03-15 17:57:49 +01:00

Hello everyone. I have a question according to this function in file source\blender\draw\engines\overlay\overlay_armature.cc

/* Octahedral */
static void drw_shgroup_bone_octahedral(const ArmatureDrawContext *ctx,
const float (*bone_mat)[4],
const float bone_color[4],
const float hint_color[4],
const float outline_color[4])
{
BoneInstanceData inst_data;
mul_m4_m4m4(inst_data.mat, ctx->ob->object_to_world, bone_mat);
if (ctx->solid) {
OVERLAY_bone_instance_data_set_color(&inst_data, bone_color);
OVERLAY_bone_instance_data_set_color_hint(&inst_data, hint_color);
DRW_buffer_add_entry_struct(ctx->solid, &inst_data);
}
if (outline_color[3] > 0.0f) {
OVERLAY_bone_instance_data_set_color(&inst_data, outline_color);
DRW_buffer_add_entry_struct(ctx->outline, &inst_data);
}
}

Is there any way to transform this function to this one, but with octahedral shape display?

/* Stick */
static void drw_shgroup_bone_stick(const ArmatureDrawContext *ctx,
const float head[3],
const float tail[3],
const float col_wire[4],
const float col_bone[4],
const float col_head[4],
const float col_tail[4])
{
DRW_buffer_add_entry(ctx->stick, head, tail, col_wire, col_bone, col_head, col_tail);
}

Or this thing is hardcoded to Open GL octahedral shader and impossible to fix?
Why I am asking? I want to draw octahedral shape from the bone parent head to the child head. When Viewport Display > Relations Head is enabled. This can be very useful for FBX files display. Thank you very much in advance.

**Hello everyone. I have a question according to this function in file source\blender\draw\engines\overlay\overlay_armature.cc** _/* Octahedral */ static void drw_shgroup_bone_octahedral(const ArmatureDrawContext *ctx, const float (*bone_mat)[4], const float bone_color[4], const float hint_color[4], const float outline_color[4]) { BoneInstanceData inst_data; mul_m4_m4m4(inst_data.mat, ctx->ob->object_to_world, bone_mat); if (ctx->solid) { OVERLAY_bone_instance_data_set_color(&inst_data, bone_color); OVERLAY_bone_instance_data_set_color_hint(&inst_data, hint_color); DRW_buffer_add_entry_struct(ctx->solid, &inst_data); } if (outline_color[3] > 0.0f) { OVERLAY_bone_instance_data_set_color(&inst_data, outline_color); DRW_buffer_add_entry_struct(ctx->outline, &inst_data); } }_ **Is there any way to transform this function to this one, but with octahedral shape display?** _/* Stick */ static void drw_shgroup_bone_stick(const ArmatureDrawContext *ctx, const float head[3], const float tail[3], const float col_wire[4], const float col_bone[4], const float col_head[4], const float col_tail[4]) { DRW_buffer_add_entry(ctx->stick, head, tail, col_wire, col_bone, col_head, col_tail); }_ Or this thing is hardcoded to Open GL octahedral shader and impossible to fix? Why I am asking? I want to draw octahedral shape from the bone parent head to the child head. When _Viewport Display > Relations Head_ is enabled. This can be very useful for FBX files display. Thank you very much in advance.

Alexey Zakharchenko added the

Type

To Do

label 2024-03-15 17:57:49 +01:00

Iliya Katushenock commented

2024-03-15 18:03:55 +01:00

Hi, you can ask this in https://blender.chat/channel/eevee-viewport-module
I'll close this issue since this place is for bug reports.

Hi, you can ask this in https://blender.chat/channel/eevee-viewport-module I'll close this issue since this place is for bug reports.

👍 1

Iliya Katushenock closed this issue

2024-03-15 18:03:57 +01:00

Blender Bot added the