ztest option

engine/src/renderer/3d/pipeline/static/core/stapip_core.cpp

@@ -73,7 +73,7 @@ u32 StaPipCore::getMaxVertCountByParams(const bool& isSingleColor,
 }
 
 void StaPipCore::render(StaPipBag* bag, const bool& frustumCull,
-                        StaPipBagPackagesBBox* bbox) {
+                        const StaPipZTest& zTest, StaPipBagPackagesBBox* bbox) {
   if (bag->count <= 0) return;
 
   TYRA_ASSERT(bag->vertices != nullptr,
@@ -128,6 +128,10 @@ void StaPipCore::render(StaPipBag* bag, const bool& frustumCull,
     }
   }
 
+  if (zTest == StaPipZTest_AllPass) {
+    rendererCore->gs.setAllPassZTest();
+  }
+
   packager.setRenderBBox(renderBbox);
 
   M4x4 mvp;
@@ -204,6 +208,10 @@ void StaPipCore::render(StaPipBag* bag, const bool& frustumCull,
 
   qbufferRenderer.flushBuffers();
 
+  if (zTest == StaPipZTest_AllPass) {
+    rendererCore->gs.setStandardZTest();
+  }
+
   Verbose("Render finished");
 }
 

engine/src/renderer/3d/pipeline/static/static_pipeline.cpp

@@ -40,6 +40,7 @@ void StaticPipeline::render(StaticMesh* mesh, const StaPipOptions* options) {
   auto model = mesh->getModelMatrix();
   auto* infoBag = getInfoBag(mesh, options, &model);
 
+  auto zTesting = options ? options->zTestType : StaPipZTest_Standard;
   auto frustumCulling =
       options ? options->frustumCulling : PipelineFrustumCulling_Simple;
 
@@ -75,7 +76,8 @@ void StaticPipeline::render(StaticMesh* mesh, const StaPipOptions* options) {
     bag.texture = getTextureBag(material, materialFrame);
     bag.lighting = getLightingBag(materialFrame, &model, options);
 
-    core.render(&bag, frustumCulling == PipelineFrustumCulling_Precise);
+    core.render(&bag, frustumCulling == PipelineFrustumCulling_Precise,
+                zTesting);
 
     deallocDrawBags(&bag, material);
   }

engine/src/renderer/core/gs/renderer_core_gs.cpp

@@ -32,6 +32,9 @@ RendererCoreGS::~RendererCoreGS() {
   if (flipPacket) {
     packet2_free(flipPacket);
   }
+  if (zTestPacket) {
+    packet2_free(zTestPacket);
+  }
 }
 
 void RendererCoreGS::init(RendererSettings* t_settings) {
@@ -39,6 +42,7 @@ void RendererCoreGS::init(RendererSettings* t_settings) {
 
   initChannels();
   flipPacket = packet2_create(4, P2_TYPE_UNCACHED_ACCL, P2_MODE_NORMAL, 0);
+  zTestPacket = packet2_create(3, P2_TYPE_NORMAL, P2_MODE_NORMAL, 0);
   allocateBuffers();
   initDrawingEnvironment();
 
@@ -49,6 +53,21 @@ void RendererCoreGS::initChannels() {
   dma_channel_initialize(DMA_CHANNEL_GIF, NULL, 0);
 }
 
+void RendererCoreGS::setStandardZTest() {
+  packet2_reset(zTestPacket, false);
+  packet2_update(zTestPacket,
+                 draw_enable_tests(zTestPacket->base, 0, &zBuffer));
+  dma_channel_wait(DMA_CHANNEL_GIF, 0);
+  dma_channel_send_packet2(zTestPacket, DMA_CHANNEL_GIF, true);
+}
+
+void RendererCoreGS::setAllPassZTest() {
+  packet2_reset(zTestPacket, false);
+  packet2_update(zTestPacket, addAllPassZTest(zTestPacket->base, 0, &zBuffer));
+  dma_channel_wait(DMA_CHANNEL_GIF, 0);
+  dma_channel_send_packet2(zTestPacket, DMA_CHANNEL_GIF, true);
+}
+
 void RendererCoreGS::allocateBuffers() {
   frameBuffers[0].width = static_cast<unsigned int>(settings->getWidth());
   frameBuffers[0].height = static_cast<unsigned int>(settings->getHeight());
@@ -119,6 +138,20 @@ qword_t* RendererCoreGS::setXYOffset(qword_t* q, const int& drawContext,
   return q;
 }
 
+qword_t* RendererCoreGS::addAllPassZTest(qword_t* q, int context,
+                                         zbuffer_t* z) {
+  (void)z;
+
+  PACK_GIFTAG(q, GIF_SET_TAG(1, 0, 0, 0, GIF_FLG_PACKED, 1), GIF_REG_AD);
+  q++;
+
+  PACK_GIFTAG(q, GS_SET_TEST(0, 0, 0, 0, 0, 0, 0, ZTEST_METHOD_ALLPASS),
+              GS_REG_TEST + context);
+  q++;
+
+  return q;
+}
+
 void RendererCoreGS::flipBuffers() {
   graph_set_framebuffer_filtered(frameBuffers[context].address,
                                  frameBuffers[context].width,