FProceduralMeshTriData
CreatureCore::GetProcMeshData()
{
if (!creature_manager)
{
FProceduralMeshTriData ret_data(nullptr,
nullptr, nullptr,
0, 0,
®ion_alphas,
update_lock);
return ret_data;
}
auto cur_creature = creature_manager->GetCreature();
int32 num_points = cur_creature->GetTotalNumPoints();
int32 num_indices = cur_creature->GetTotalNumIndices();
glm::uint32 * cur_idx = cur_creature->GetGlobalIndices();
glm::float32 * cur_pts = cur_creature->GetRenderPts();
glm::float32 * cur_uvs = cur_creature->GetGlobalUvs();
if (region_alphas.Num() != num_points)
{
region_alphas.SetNum(num_points);
}
FProceduralMeshTriData ret_data(cur_idx,
cur_pts, cur_uvs,
num_points, num_indices,
®ion_alphas,
update_lock);
return ret_data;
}
void ACreatureActor::UpdateCreatureRender()
{
auto cur_creature = creature_manager->GetCreature();
int num_triangles = cur_creature->GetTotalNumIndices() / 3;
glm::uint32 * cur_idx = cur_creature->GetGlobalIndices();
glm::float32 * cur_pts = cur_creature->GetRenderPts();
glm::float32 * cur_uvs = cur_creature->GetGlobalUvs();
// Update depth per region
std::vector<meshRenderRegion *>& cur_regions =
cur_creature->GetRenderComposition()->getRegions();
float region_z = 0.0f, delta_z = -0.01f;
for (auto& single_region : cur_regions)
{
glm::float32 * region_pts = cur_pts + (single_region->getStartPtIndex() * 3);
for (size_t i = 0; i < single_region->getNumPts(); i++)
{
region_pts[2] = region_z;
region_pts += 3;
}
region_z += delta_z;
}
// Build render triangles
TArray<FProceduralMeshTriangle>& write_triangles = mesh->GetProceduralTriangles();
static const FColor White(255, 255, 255, 255);
int cur_pt_idx = 0, cur_uv_idx = 0;
for (int i = 0; i < num_triangles; i++)
{
int real_idx_1 = cur_idx[0];
int real_idx_2 = cur_idx[1];
int real_idx_3 = cur_idx[2];
FProceduralMeshTriangle triangle;
cur_pt_idx = real_idx_1 * 3;
cur_uv_idx = real_idx_1 * 2;
triangle.Vertex0.Position.Set(cur_pts[cur_pt_idx], cur_pts[cur_pt_idx + 1], cur_pts[cur_pt_idx + 2]);
triangle.Vertex0.Color = White;
triangle.Vertex0.U = cur_uvs[cur_uv_idx];
triangle.Vertex0.V = cur_uvs[cur_uv_idx + 1];
cur_pt_idx = real_idx_2 * 3;
cur_uv_idx = real_idx_2 * 2;
triangle.Vertex1.Position.Set(cur_pts[cur_pt_idx], cur_pts[cur_pt_idx + 1], cur_pts[cur_pt_idx + 2]);
triangle.Vertex1.Color = White;
triangle.Vertex1.U = cur_uvs[cur_uv_idx];
triangle.Vertex1.V = cur_uvs[cur_uv_idx + 1];
cur_pt_idx = real_idx_3 * 3;
cur_uv_idx = real_idx_3 * 2;
triangle.Vertex2.Position.Set(cur_pts[cur_pt_idx], cur_pts[cur_pt_idx + 1], cur_pts[cur_pt_idx + 2]);
triangle.Vertex2.Color = White;
triangle.Vertex2.U = cur_uvs[cur_uv_idx];
triangle.Vertex2.V = cur_uvs[cur_uv_idx + 1];
write_triangles[i] = triangle;
cur_idx += 3;
}
//mesh->SetProceduralMeshTriangles(draw_triangles);
mesh->ForceAnUpdate();
}
void CreatureCore::UpdateCreatureRender()
{
auto cur_creature = creature_manager->GetCreature();
int num_triangles = cur_creature->GetTotalNumIndices() / 3;
glm::uint32 * cur_idx = cur_creature->GetGlobalIndices();
glm::float32 * cur_pts = cur_creature->GetRenderPts();
glm::float32 * cur_uvs = cur_creature->GetGlobalUvs();
// Update depth per region
std::vector<meshRenderRegion *>& cur_regions =
cur_creature->GetRenderComposition()->getRegions();
float region_z = 0.0f, delta_z = region_overlap_z_delta;
if (region_custom_order.Num() != cur_regions.size())
{
// Normal update in default order
for (auto& single_region : cur_regions)
{
glm::float32 * region_pts = cur_pts + (single_region->getStartPtIndex() * 3);
for (size_t i = 0; i < single_region->getNumPts(); i++)
{
region_pts[2] = region_z;
region_pts += 3;
}
region_z += delta_z;
}
}
else {
// Custom order update
auto& regions_map = cur_creature->GetRenderComposition()->getRegionsMap();
for (auto& custom_region_name : region_custom_order)
{
auto real_name = ConvertToString(custom_region_name);
if (regions_map.count(real_name) > 0)
{
auto single_region = regions_map[real_name];
glm::float32 * region_pts = cur_pts + (single_region->getStartPtIndex() * 3);
for (size_t i = 0; i < single_region->getNumPts(); i++)
{
region_pts[2] = region_z;
region_pts += 3;
}
region_z += delta_z;
}
}
}
// Build render triangles
/*
TArray<FProceduralMeshTriangle>& write_triangles = draw_tris;
static const FColor White(255, 255, 255, 255);
int cur_pt_idx = 0, cur_uv_idx = 0;
const int x_id = 0;
const int y_id = 2;
const int z_id = 1;
for (int i = 0; i < num_triangles; i++)
{
int real_idx_1 = cur_idx[0];
int real_idx_2 = cur_idx[1];
int real_idx_3 = cur_idx[2];
FProceduralMeshTriangle triangle;
cur_pt_idx = real_idx_1 * 3;
cur_uv_idx = real_idx_1 * 2;
triangle.Vertex0.Position.Set(cur_pts[cur_pt_idx + x_id], cur_pts[cur_pt_idx + y_id], cur_pts[cur_pt_idx + z_id]);
triangle.Vertex0.Color = White;
triangle.Vertex0.U = cur_uvs[cur_uv_idx];
triangle.Vertex0.V = cur_uvs[cur_uv_idx + 1];
cur_pt_idx = real_idx_2 * 3;
cur_uv_idx = real_idx_2 * 2;
triangle.Vertex1.Position.Set(cur_pts[cur_pt_idx + x_id], cur_pts[cur_pt_idx + y_id], cur_pts[cur_pt_idx + z_id]);
triangle.Vertex1.Color = White;
triangle.Vertex1.U = cur_uvs[cur_uv_idx];
triangle.Vertex1.V = cur_uvs[cur_uv_idx + 1];
cur_pt_idx = real_idx_3 * 3;
cur_uv_idx = real_idx_3 * 2;
triangle.Vertex2.Position.Set(cur_pts[cur_pt_idx + x_id], cur_pts[cur_pt_idx + y_id], cur_pts[cur_pt_idx + z_id]);
triangle.Vertex2.Color = White;
triangle.Vertex2.U = cur_uvs[cur_uv_idx];
triangle.Vertex2.V = cur_uvs[cur_uv_idx + 1];
write_triangles[i] = triangle;
cur_idx += 3;
}
*/
// process the render regions
ProcessRenderRegions();
}