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AMD cable fix attempt #5756

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AMD cable fix attempt #5756

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03ea551
amd cable fix
QrowZK Jun 15, 2026
e0ae49f
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QrowZK Jun 15, 2026
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6 changes: 6 additions & 0 deletions LuaRules/Gadgets/Shaders/gfx_overdrive_cables.frag.glsl
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Original file line number Diff line number Diff line change
Expand Up @@ -15,9 +15,11 @@ uniform float losViewEnabled; // 1.0 = LOS overlay is on (GetMapDrawMode=="los")

// Same SSBO as the GS — per-edge coverage bitmask, gates per-segment
// ghost rendering for enemy fragments.
#if !defined(SHADOW_PASS) && !defined(DEFERRED_PASS)
layout (std430, binding = 6) coherent buffer cableCoverageBuffer {
uvec4 cableCoverage[];
};
#endif

in DataGS {
vec3 worldPos;
Expand Down Expand Up @@ -350,6 +352,7 @@ void main() {
vec2 losUV0 = clamp(worldPos.xz, vec2(0.0), mapSize.xy) / mapSize.zw;
float los0 = texture(infoTex, losUV0).r;
if (los0 >= ENEMY_LOS_CUT) discard;
#if !defined(SHADOW_PASS) && !defined(DEFERRED_PASS)
uint cov0 = (gsSlot >= 0) ? cableCoverage[gsSlot].x : 0u;
// Per-segment ghost gating, mirroring the calc done lower in the FS
// for live fragments. spawnAlongMain carries lenPerSeg for main
Expand All @@ -363,6 +366,7 @@ void main() {
segBit0 = 0xFFFFFFu;
}
if ((cov0 & segBit0) == 0u) discard;
#endif

// Flat ghost shade: light gray, slight capacity-driven brightening,
// branches a touch dimmer. Alpha-blend over terrain (depth-write off
Expand Down Expand Up @@ -523,8 +527,10 @@ void main() {
if (enemyOutOfLOS) {
// Ghosts disabled: no SSBO read, no branch evaluation; just discard.
if (ghostsEnabled < 0.5) discard;
#if !defined(SHADOW_PASS) && !defined(DEFERRED_PASS)
uint cov = (gsSlot >= 0) ? cableCoverage[gsSlot].x : 0u;
if ((cov & segBit) == 0u) discard;
#endif
// Same flat translucent shading as the ghost-VBO fast path so
// live-out-of-LOS and orphaned ghosts read identically.
float capT2 = clamp(capacity / 100.0, 0.0, 1.0);
Expand Down
2 changes: 2 additions & 0 deletions LuaRules/Gadgets/Shaders/gfx_overdrive_cables.geom.glsl
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Expand Up @@ -35,9 +35,11 @@ uniform float ghostsEnabled; // 1.0 = run coverage SSBO updates, 0.0 = by
//
// Slots are declared as uvec4 because Spring's VBO API requires vec4-aligned
// attributes; we only use `.x` and ignore `.yzw`.
#if !defined(SHADOW_PASS) && !defined(DEFERRED_PASS)
layout (std430, binding = 6) coherent buffer cableCoverageBuffer {
uvec4 cableCoverage[];
};
#endif

in DataVS {
vec2 vsWorldXZ;
Expand Down