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flush buffer to ensure vertexes in same trig being drawn in same batch (#19)

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* flush buffer to ensure vertexes in same trig being drawn in same batch

* off by one
This commit is contained in:
Glease authored and GitHub committed 2023-03-08 12:23:32 +01:00
1 parent a8a1547845
commit fa5e2ae4ca
1 file changed
+11 -1
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src/main/java/com/gtnewhorizon/structurelib/ClientProxy.java
+11 -1
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@@ -526,7 +526,8 @@ public class ClientProxy extends CommonProxy {
GL11.glTranslated(-d0 + i0, -d1 + i1, -d2 + i2);
Tessellator tes = Tessellator.instance;
tes.startDrawing(GL11.GL_TRIANGLES);
for (int i = 0, allHintsForRenderSize = allHintsForRender.size(); i < allHintsForRenderSize; i++) {
for (int i = 0, allHintsForRenderSize = allHintsForRender.size(), cubeDrawn = 0; i
< allHintsForRenderSize; i++, cubeDrawn++) {
HintParticleInfo hint = allHintsForRender.get(i);
if (!hint.isInFrustrum(frustrum)) continue;
if (renderThrough != hint.renderThrough) {
@@ -534,12 +535,21 @@ public class ClientProxy extends CommonProxy {
p.endStartSection("Draw");
tes.draw();
tes.startDrawing(GL11.GL_TRIANGLES);
cubeDrawn = 0;
p.endStartSection("Prepare");
}
if (hint.renderThrough) GL11.glDisable(GL11.GL_DEPTH_TEST);
else GL11.glEnable(GL11.GL_DEPTH_TEST);
renderThrough = hint.renderThrough;
}
// Minecraft Tessellator draw in batch of 4096. This plays nicely with quads, but for trigs
// it might occasionally end up with one half in first batch and the other half in later batch.
// so we manually flush the buffer here if that would happen.
// 6 faces per particle, 2 trig per face, 3 vertex per trig
if ((cubeDrawn + 1) >= 4096 / (6 * 2 * 3)) {
tes.draw();
tes.startDrawing(GL11.GL_TRIANGLES);
}
// TODO verify if we need to add eyeHeight
hint.draw(tes, d0, d1, d2, i0, i1, i2);
}