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replace GL immediate draw with Tessellator calls for chunk bounds ren…
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…dering (#549)
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@kurrycat2004
kurrycat2004 authored Oct 22, 2024
1 parent 759ea69 commit b2934c4
Showing 1 changed file with 56 additions and 54 deletions.
110 changes: 56 additions & 54 deletions src/main/java/codechicken/nei/WorldOverlayRenderer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -204,7 +204,9 @@ private static void renderChunkBounds(Entity entity, int intOffsetX, int intOffs
GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
GL11.glDisable(GL11.GL_LIGHTING);
GL11.glLineWidth(1.5F);
GL11.glBegin(GL11.GL_LINES);

final Tessellator tess = Tessellator.instance;
tess.startDrawing(GL11.GL_LINES);

for (int cx = -4; cx <= 4; cx++) for (int cz = -4; cz <= 4; cz++) {
double x1 = ((entity.chunkCoordX + cx) << 4) - intOffsetX;
Expand All @@ -230,22 +232,22 @@ private static void renderChunkBounds(Entity entity, int intOffsetX, int intOffs

double dist = Math.pow(1.5, -(cx * cx + cz * cz));

GL11.glColor4d(0.9, 0, 0, dist);
tess.setColorRGBA_F(0.9F, 0, 0, (float) dist);
if (cx >= 0 && cz >= 0) {
GL11.glVertex3d(x2, y1, z2);
GL11.glVertex3d(x2, y2, z2);
tess.addVertex(x2, y1, z2);
tess.addVertex(x2, y2, z2);
}
if (cx >= 0 && cz <= 0) {
GL11.glVertex3d(x2, y1, z1);
GL11.glVertex3d(x2, y2, z1);
tess.addVertex(x2, y1, z1);
tess.addVertex(x2, y2, z1);
}
if (cx <= 0 && cz >= 0) {
GL11.glVertex3d(x1, y1, z2);
GL11.glVertex3d(x1, y2, z2);
tess.addVertex(x1, y1, z2);
tess.addVertex(x1, y2, z2);
}
if (cx <= 0 && cz <= 0) {
GL11.glVertex3d(x1, y1, z1);
GL11.glVertex3d(x1, y2, z1);
tess.addVertex(x1, y1, z1);
tess.addVertex(x1, y2, z1);
}

if (cx == 0 && cz == 0) {
Expand All @@ -266,26 +268,26 @@ private static void renderChunkBounds(Entity entity, int intOffsetX, int intOffs
y1 -= intOffsetY;
y2 -= intOffsetY;

GL11.glColor4d(0, 0.9, 0, 0.4);
tess.setColorRGBA_F(0, 0.9F, 0, 0.4F);
for (double y = (int) y1; y <= y2; y++) {
GL11.glVertex3d(x2, y, z1);
GL11.glVertex3d(x2, y, z2);
GL11.glVertex3d(x1, y, z1);
GL11.glVertex3d(x1, y, z2);
GL11.glVertex3d(x1, y, z2);
GL11.glVertex3d(x2, y, z2);
GL11.glVertex3d(x1, y, z1);
GL11.glVertex3d(x2, y, z1);
tess.addVertex(x2, y, z1);
tess.addVertex(x2, y, z2);
tess.addVertex(x1, y, z1);
tess.addVertex(x1, y, z2);
tess.addVertex(x1, y, z2);
tess.addVertex(x2, y, z2);
tess.addVertex(x1, y, z1);
tess.addVertex(x2, y, z1);
}
for (double h = 1; h <= 15; h++) {
GL11.glVertex3d(x1 + h, y1, z1);
GL11.glVertex3d(x1 + h, y2, z1);
GL11.glVertex3d(x1 + h, y1, z2);
GL11.glVertex3d(x1 + h, y2, z2);
GL11.glVertex3d(x1, y1, z1 + h);
GL11.glVertex3d(x1, y2, z1 + h);
GL11.glVertex3d(x2, y1, z1 + h);
GL11.glVertex3d(x2, y2, z1 + h);
tess.addVertex(x1 + h, y1, z1);
tess.addVertex(x1 + h, y2, z1);
tess.addVertex(x1 + h, y1, z2);
tess.addVertex(x1 + h, y2, z2);
tess.addVertex(x1, y1, z1 + h);
tess.addVertex(x1, y2, z1 + h);
tess.addVertex(x2, y1, z1 + h);
tess.addVertex(x2, y2, z1 + h);
}
} else if (chunkOverlay == 3) {
int gx1;
Expand All @@ -310,50 +312,50 @@ private static void renderChunkBounds(Entity entity, int intOffsetX, int intOffs
int gx2 = gx1 + 48;
int gz2 = gz1 + 48;

GL11.glColor4d(0, 0.9, 0, 0.4);
tess.setColorRGBA_F(0, 0.9F, 0, 0.4F);
for (double y = (int) y1; y <= y2; y++) {
GL11.glVertex3d(gx2, y, gz1);
GL11.glVertex3d(gx2, y, gz2);
GL11.glVertex3d(gx1, y, gz1);
GL11.glVertex3d(gx1, y, gz2);
GL11.glVertex3d(gx1, y, gz2);
GL11.glVertex3d(gx2, y, gz2);
GL11.glVertex3d(gx1, y, gz1);
GL11.glVertex3d(gx2, y, gz1);
tess.addVertex(gx2, y, gz1);
tess.addVertex(gx2, y, gz2);
tess.addVertex(gx1, y, gz1);
tess.addVertex(gx1, y, gz2);
tess.addVertex(gx1, y, gz2);
tess.addVertex(gx2, y, gz2);
tess.addVertex(gx1, y, gz1);
tess.addVertex(gx2, y, gz1);
}
for (double h = 4; h <= 44; h += 4) {
if (h % 16 == 0) {
continue;
}
GL11.glVertex3d(gx1 + h, y1, gz1);
GL11.glVertex3d(gx1 + h, y2, gz1);
GL11.glVertex3d(gx1 + h, y1, gz2);
GL11.glVertex3d(gx1 + h, y2, gz2);
GL11.glVertex3d(gx1, y1, gz1 + h);
GL11.glVertex3d(gx1, y2, gz1 + h);
GL11.glVertex3d(gx2, y1, gz1 + h);
GL11.glVertex3d(gx2, y2, gz1 + h);
tess.addVertex(gx1 + h, y1, gz1);
tess.addVertex(gx1 + h, y2, gz1);
tess.addVertex(gx1 + h, y1, gz2);
tess.addVertex(gx1 + h, y2, gz2);
tess.addVertex(gx1, y1, gz1 + h);
tess.addVertex(gx1, y2, gz1 + h);
tess.addVertex(gx2, y1, gz1 + h);
tess.addVertex(gx2, y2, gz1 + h);
}

GL11.glColor4d(0, 0, 0.9, 0.4);
tess.setColorRGBA_F(0, 0, 0.9F, 0.4F);
gx1 += 23;
gz1 += 23;
gx2 = gx1 + 1;
gz2 = gz1 + 1;

GL11.glVertex3d(gx1, y1, gz1);
GL11.glVertex3d(gx1, y2, gz1);
GL11.glVertex3d(gx2, y1, gz1);
GL11.glVertex3d(gx2, y2, gz1);
GL11.glVertex3d(gx1, y1, gz2);
GL11.glVertex3d(gx1, y2, gz2);
GL11.glVertex3d(gx2, y1, gz2);
GL11.glVertex3d(gx2, y2, gz2);
tess.addVertex(gx1, y1, gz1);
tess.addVertex(gx1, y2, gz1);
tess.addVertex(gx2, y1, gz1);
tess.addVertex(gx2, y2, gz1);
tess.addVertex(gx1, y1, gz2);
tess.addVertex(gx1, y2, gz2);
tess.addVertex(gx2, y1, gz2);
tess.addVertex(gx2, y2, gz2);
}
}
}

GL11.glEnd();
tess.draw();
GL11.glEnable(GL11.GL_LIGHTING);
GL11.glEnable(GL11.GL_TEXTURE_2D);
GL11.glDisable(GL11.GL_BLEND);
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