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Add surface culling to LOD rendering

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This commit is contained in:
James Seibel
2021-01-26 16:30:12 -06:00
parent 9354218853
commit 78e3ef07af
1 changed files with 31 additions and 18 deletions
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src/main/java/backsun/lod/renderer/LodRenderer.java
+31 -18
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@@ -77,6 +77,8 @@ public class LodRenderer
return;
}
// used for debugging and viewing how long different processes take
mc.world.profiler.startSection("LOD setup");
@SuppressWarnings("unused")
@@ -90,6 +92,7 @@ public class LodRenderer
Color red = new Color(255, 0, 0, alpha);
Color black = new Color(0, 0, 0, alpha);
Color white = new Color(255, 255, 255, alpha);
@SuppressWarnings("unused")
Color invisible = new Color(0,0,0,0);
@@ -225,7 +228,7 @@ public class LodRenderer
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
GL11.glLineWidth(2.0f);
GL11.glDisable(GL11.GL_TEXTURE_2D);
GL11.glDisable(GL11.GL_CULL_FACE);
GL11.glEnable(GL11.GL_CULL_FACE);
GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
GL11.glEnable(GL11.GL_BLEND);
@@ -265,7 +268,6 @@ public class LodRenderer
GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
GL11.glEnable(GL11.GL_CULL_FACE);
GL11.glEnable(GL11.GL_TEXTURE_2D);
// TODO re-set the modelview matrix
@@ -328,38 +330,49 @@ public class LodRenderer
blue = colorArray[colorIndex].getBlue();
alpha = colorArray[colorIndex].getAlpha();
bufferBuilder.pos(bb.minX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
// only draw the other 5 sides if there is some thickness to this box
// only draw all 6 sides if there is some thickness to the box
if (bb.minY != bb.maxY)
{
// top (facing up)
bufferBuilder.pos(bb.minX, bb.maxY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.maxY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
// bottom (facing down)
bufferBuilder.pos(bb.maxX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
// south (facing -Z)
bufferBuilder.pos(bb.maxX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
// north (facing +Z)
bufferBuilder.pos(bb.minX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.maxY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.maxY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
// west (facing -X)
bufferBuilder.pos(bb.minX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.maxY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
// east (facing +X)
bufferBuilder.pos(bb.maxX, bb.maxY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.maxY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
}
else
{
// bottom (facing up)
bufferBuilder.pos(bb.minX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.minX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.maxZ).color(red, green, blue, alpha).endVertex();
bufferBuilder.pos(bb.maxX, bb.minY, bb.minZ).color(red, green, blue, alpha).endVertex();
}
}
// so we can get the next color