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Fix #139189: Vulkan: UV Display Issues When Selecting Specific Mesh Regions

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The format was not 4 byte aligned and not compatible with the new
format enums.

Pull Request: https://projects.blender.org/blender/blender/pulls/139202
This commit is contained in:
Clément Foucault
2025-05-22 09:18:08 +02:00
committed by Clément Foucault
parent 74751f985d
commit 78170cbf90
1 changed files with 2 additions and 11 deletions
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13
source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edituv_stretch_angle.cc
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@@ -18,19 +18,10 @@
namespace blender::draw {
struct UVStretchAngle {
/* NOTE: To more easily satisfy cross-platform alignment requirements, placing the 4-byte aligned
* 2 element array first ensures each attribute block is 4-byte aligned. */
float angle;
int16_t uv_angles[2];
int16_t angle;
#if defined(WITH_METAL_BACKEND)
/* For apple platforms, vertex data struct must align to minimum per-vertex-stride of 4 bytes.
* Hence, this struct needs to align to 8 bytes. */
int16_t _pad0;
#endif
};
#if defined(WITH_METAL_BACKEND)
BLI_STATIC_ASSERT_ALIGN(UVStretchAngle, 4)
#endif
struct MeshExtract_StretchAngle_Data {
UVStretchAngle *vbo_data;
@@ -199,8 +190,8 @@ gpu::VertBufPtr extract_edituv_stretch_angle(const MeshRenderData &mr)
static const GPUVertFormat format = []() {
GPUVertFormat format{};
/* Waning: adjust #UVStretchAngle struct accordingly. */
GPU_vertformat_attr_add(&format, "angle", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
GPU_vertformat_attr_add(&format, "uv_angles", GPU_COMP_I16, 2, GPU_FETCH_INT_TO_FLOAT_UNIT);
GPU_vertformat_attr_add(&format, "angle", GPU_COMP_I16, 1, GPU_FETCH_INT_TO_FLOAT_UNIT);
return format;
}();