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sculpt: fix symmetry and xray

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This commit is contained in:
luboslenco
2026-07-06 11:33:52 +02:00
parent dcb071aac7
commit 166071523d
2 changed files with 67 additions and 15 deletions
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paint/sources/uniforms.c
+30 -4
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@@ -202,10 +202,10 @@ vec4_t uniforms_ext_vec3_link(object_t *object, material_data_t *mat, char *link
// Discard first paint for directional brush (no prev position yet)
bool allow_paint = g_context->prev_paint_vec_x > 0 && g_context->prev_paint_vec_y > 0 &&
(g_context->prev_paint_vec_x != g_context->paint_vec.x || g_context->prev_paint_vec_y != g_context->paint_vec.y);
f32 x = g_context->paint_vec.x;
f32 y = g_context->paint_vec.y;
f32 lastx = g_context->prev_paint_vec_x;
f32 lasty = g_context->prev_paint_vec_y;
f32 x = g_context->paint_vec.x;
f32 y = g_context->paint_vec.y;
f32 lastx = g_context->prev_paint_vec_x;
f32 lasty = g_context->prev_paint_vec_y;
if (g_context->paint2d) {
x = uniforms_ext_vec2d(x);
lastx = uniforms_ext_vec2d(lastx);
@@ -307,6 +307,32 @@ vec4_t uniforms_ext_vec4_link(object_t *object, material_data_t *mat, char *link
}
mat4_t uniforms_ext_mat4_link(object_t *object, material_data_t *mat, char *link) {
if (string_equals(link, "_sculpt_symmetry_reflect")) {
transform_t *t = object->transform;
mat4_t W = t->world;
vec4_t axes[3] = {
vec4_norm((vec4_t){W.m00, W.m10, W.m20, 0.0}),
vec4_norm((vec4_t){W.m01, W.m11, W.m21, 0.0}),
vec4_norm((vec4_t){W.m02, W.m12, W.m22, 0.0}),
};
f32 scale[3] = {t->scale.x, t->scale.y, t->scale.z};
mat4_t F = mat4_identity();
for (i32 i = 0; i < 3; ++i) {
if (scale[i] < 0.0f) {
vec4_t a = axes[i];
F.m00 -= 2.0f * a.x * a.x;
F.m01 -= 2.0f * a.x * a.y;
F.m02 -= 2.0f * a.x * a.z;
F.m10 -= 2.0f * a.y * a.x;
F.m11 -= 2.0f * a.y * a.y;
F.m12 -= 2.0f * a.y * a.z;
F.m20 -= 2.0f * a.z * a.x;
F.m21 -= 2.0f * a.z * a.y;
F.m22 -= 2.0f * a.z * a.z;
}
}
return F;
}
if (string_equals(link, "_decal_layer_matrix")) { // Decal layer
mat4_t m = mat4_inv(g_context->layer->decal_mat);
f32 parent_scale = object->parent != NULL ? object->parent->transform->scale.x : 1.0;