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GLES2 batching - Add UV precision adjustment for tilemaps

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Scaling tilemaps can cause border artifacts around the edges of tiles. This has been traced to precision issues in the GPU. This PR adds an adjustment to allow a minor contraction of the UVs of rects in order to compensate for the incorrect classification of texels across the UV border.
This commit is contained in:
lawnjelly
2020-06-03 10:54:05 +01:00
parent 6e1af78df4
commit 275183ef15
4 changed files with 62 additions and 10 deletions
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3
servers/visual_server.cpp
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@@ -2432,6 +2432,8 @@ VisualServer::VisualServer() {
GLOBAL_DEF("rendering/batching/debug/flash_batching", false);
GLOBAL_DEF("rendering/batching/debug/diagnose_frame", false);
GLOBAL_DEF("rendering/gles2/compatibility/disable_half_float", false);
GLOBAL_DEF("rendering/batching/precision/uv_contract", false);
GLOBAL_DEF("rendering/batching/precision/uv_contract_amount", 100);
ProjectSettings::get_singleton()->set_custom_property_info("rendering/batching/parameters/max_join_item_commands", PropertyInfo(Variant::INT, "rendering/batching/parameters/max_join_item_commands", PROPERTY_HINT_RANGE, "0,65535"));
ProjectSettings::get_singleton()->set_custom_property_info("rendering/batching/parameters/colored_vertex_format_threshold", PropertyInfo(Variant::REAL, "rendering/batching/parameters/colored_vertex_format_threshold", PROPERTY_HINT_RANGE, "0.0,1.0,0.01"));
@@ -2439,6 +2441,7 @@ VisualServer::VisualServer() {
ProjectSettings::get_singleton()->set_custom_property_info("rendering/batching/lights/scissor_area_threshold", PropertyInfo(Variant::REAL, "rendering/batching/lights/scissor_area_threshold", PROPERTY_HINT_RANGE, "0.0,1.0"));
ProjectSettings::get_singleton()->set_custom_property_info("rendering/batching/lights/max_join_items", PropertyInfo(Variant::INT, "rendering/batching/lights/max_join_items", PROPERTY_HINT_RANGE, "0,512"));
ProjectSettings::get_singleton()->set_custom_property_info("rendering/batching/parameters/item_reordering_lookahead", PropertyInfo(Variant::INT, "rendering/batching/parameters/item_reordering_lookahead", PROPERTY_HINT_RANGE, "0,256"));
ProjectSettings::get_singleton()->set_custom_property_info("rendering/batching/precision/uv_contract_amount", PropertyInfo(Variant::INT, "rendering/batching/precision/uv_contract_amount", PROPERTY_HINT_RANGE, "0,10000"));
}
VisualServer::~VisualServer() {