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8x block meshes (#13133)

Reduce the number of drawcalls by generating a mesh per 8 blocks (2x2x2). Only blocks with even coordinates (lowest bit set to 0) will get a mesh.

Note: This also removes the old 'loops' algorithm for building the draw list, because it produces visual artifacts and cannot be made compatible with the approach of having a mesh for every 8th block without hurting performance.

Co-authored-by: Jude Melton-Houghton <jwmhjwmh@gmail.com>
Co-authored-by: Lars <larsh@apache.org>
Co-authored-by: sfan5 <sfan5@live.de>
This commit is contained in:
x2048 2023-01-31 17:30:59 +01:00 committed by GitHub
parent cded6a3945
commit 69fc206109
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GPG key ID: 4AEE18F83AFDEB23
14 changed files with 266 additions and 118 deletions

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@ -1619,9 +1619,9 @@ void MapblockMeshGenerator::drawNode()
*/
void MapblockMeshGenerator::generate()
{
for (p.Z = 0; p.Z < MAP_BLOCKSIZE; p.Z++)
for (p.Y = 0; p.Y < MAP_BLOCKSIZE; p.Y++)
for (p.X = 0; p.X < MAP_BLOCKSIZE; p.X++) {
for (p.Z = 0; p.Z < data->side_length; p.Z++)
for (p.Y = 0; p.Y < data->side_length; p.Y++)
for (p.X = 0; p.X < data->side_length; p.X++) {
n = data->m_vmanip.getNodeNoEx(blockpos_nodes + p);
f = &nodedef->get(n);
drawNode();