first commit

2026-05-07 21:38:27 +03:00
commit 84fb173ea8
3949 changed files with 564326 additions and 0 deletions
@@ -0,0 +1,115 @@
+ivec3[6] glassOffsets = ivec3[](
+    ivec3( 1, 0, 0),
+    ivec3(-1, 0, 0),
+    ivec3( 0, 1, 0),
+    ivec3( 0,-1, 0),
+    ivec3( 0, 0, 1),
+    ivec3( 0, 0,-1)
+);
+
+ivec3[12] glassCornerOffsets = ivec3[](
+    ivec3( 1, 1, 0),
+    ivec3( 1,-1, 0),
+    ivec3(-1, 1, 0),
+    ivec3(-1,-1, 0),
+    ivec3( 0, 1, 1),
+    ivec3( 0, 1,-1),
+    ivec3( 0,-1, 1),
+    ivec3( 0,-1,-1),
+    ivec3( 1, 0, 1),
+    ivec3( 1, 0,-1),
+    ivec3(-1, 0, 1),
+    ivec3(-1, 0,-1)
+);
+
+vec2 GetModifiedMidCoord() {
+    float epsilon1 = 0.00001;
+    vec2 midCoord = texCoord - signMidCoordPos * absMidCoordPos;
+    return midCoord - epsilon1;
+}
+
+void DoSimpleConnectedGlass(inout vec4 color) {
+    color = texture2DLod(tex, GetModifiedMidCoord() - 0.125 * absMidCoordPos, 0);
+}
+
+#ifdef GBUFFERS_WATER
+    void DoConnectedGlass(inout vec4 colorP, inout vec4 color, inout bool noGeneratedNormals, vec3 playerPos, vec3 worldGeoNormal, uint voxelID, bool isPane) {
+        vec3 worldGeoNormalM = vec3( // Fixes Iris 1.8 normal precision issues causing the coordinates to be imperfect
+            round(worldGeoNormal.x),
+            round(worldGeoNormal.y),
+            round(worldGeoNormal.z)
+        );
+        vec3 playerPosM = playerPos - worldGeoNormalM * 0.25;
+        vec3 voxelPos = SceneToVoxel(playerPosM);
+
+        if (CheckInsideVoxelVolume(voxelPos)) {
+            #if IRIS_VERSION >= 10800
+                float epsilon2 = 0.0;
+            #else
+                float epsilon2 = 0.001;
+            #endif
+            float pixelOffset = 0.5 / (absMidCoordPos.y * atlasSize.y);
+            float pixelOffsetPlus = pixelOffset + epsilon2;
+            float pixelOffsetMinus = pixelOffset - epsilon2;
+
+            colorP = texture2DLod(tex, texCoord, 0);
+            vec4 colorPvanilla = colorP;
+
+            vec2 midCoordM = GetModifiedMidCoord();
+            vec3 worldPos = playerPosM + cameraPositionBestFract;
+            vec3 floorWorldPos = floor(worldPos);
+
+            // Remove edges
+            for (int i = 0; i < 6; i++) {
+                uint voxel = GetVoxelVolume(ivec3(voxelPos) + glassOffsets[i]);
+                if (voxel == voxelID) {
+                    if (floor(worldPos + glassOffsets[i] * pixelOffsetPlus) != floorWorldPos) {
+                        colorP = texture2DLod(tex, midCoordM, 0);
+                    }
+                    #ifdef GENERATED_NORMALS
+                        if (floor(worldPos + glassOffsets[i] * pixelOffsetPlus * 1.25) != floorWorldPos) {
+                            noGeneratedNormals = true;
+                        }
+                    #endif
+                }
+            }
+
+            // Fixes the connections by restoring the edges that aren't connected
+            for (int i = 0; i < 6; i++) {
+                uint voxel = GetVoxelVolume(ivec3(voxelPos) + glassOffsets[i]);
+                if (voxel != voxelID) {
+                    //if (floor(worldPos + glassOffsets[i] * 0.0625) != floorWorldPos) {
+                    if (floor(worldPos + glassOffsets[i] * pixelOffsetMinus) != floorWorldPos) {
+                        colorP = colorPvanilla;
+                    }
+                }
+            }
+
+            if (isPane) {
+                // Fixes lines between layers of glass panes
+                if (NdotU > 0.9) {
+                    uint voxel = GetVoxelVolume(ivec3(voxelPos) + ivec3(0, 1, 0));
+                    if (voxel == voxelID) discard;
+                }
+                if (NdotU < -0.9) {
+                    uint voxel = GetVoxelVolume(ivec3(voxelPos) - ivec3(0, 1, 0));
+                    if (voxel == voxelID) discard;
+                }
+            }
+
+            #ifdef CONNECTED_GLASS_CORNER_FIX
+                // Restores corners
+                for (int i = 0; i < 12; i++) {
+                    uint voxel = GetVoxelVolume(ivec3(voxelPos) + glassCornerOffsets[i]);
+                    if ((voxel != voxelID) && (!isPane || voxel > 0u)) {
+                        if (floor((worldPos - glassCornerOffsets[i] * (1.0 - pixelOffsetMinus))) == floorWorldPos) {
+                            colorP = colorPvanilla;
+                        }
+                    }
+                }
+            #endif
+
+            color = colorP * vec4(glColor.rgb, 1.0);
+        }
+    }
+#endif