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authorbonmas14 <bonmas14@gmail.com>2025-09-20 22:28:15 +0300
committerbonmas14 <bonmas14@gmail.com>2025-09-20 22:28:15 +0300
commitcdda4c4182c9ee068567529715e4a5c68a8efb58 (patch)
tree38a63f62a64018a2d35fc33354f8589fd33b7514 /deps/raylib/examples/others/resources/shaders/glsl430/gol.glsl
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Init commit v1.0
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diff --git a/deps/raylib/examples/others/resources/shaders/glsl430/gol.glsl b/deps/raylib/examples/others/resources/shaders/glsl430/gol.glsl
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+#version 430
+
+// Game of Life logic shader
+
+#define GOL_WIDTH 768
+
+layout (local_size_x = 16, local_size_y = 16, local_size_z = 1) in;
+
+layout(std430, binding = 1) readonly restrict buffer golLayout {
+ uint golBuffer[]; // golBuffer[x, y] = golBuffer[x + gl_NumWorkGroups.x * y]
+};
+
+layout(std430, binding = 2) writeonly restrict buffer golLayout2 {
+ uint golBufferDest[]; // golBufferDest[x, y] = golBufferDest[x + gl_NumWorkGroups.x * y]
+};
+
+#define fetchGol(x, y) ((((x) < 0) || ((y) < 0) || ((x) > GOL_WIDTH) || ((y) > GOL_WIDTH)) \
+ ? (0) \
+ : golBuffer[(x) + GOL_WIDTH * (y)])
+
+#define setGol(x, y, value) golBufferDest[(x) + GOL_WIDTH*(y)] = value
+
+void main()
+{
+ uint neighbourCount = 0;
+ uint x = gl_GlobalInvocationID.x;
+ uint y = gl_GlobalInvocationID.y;
+
+ neighbourCount += fetchGol(x - 1, y - 1); // Top left
+ neighbourCount += fetchGol(x, y - 1); // Top middle
+ neighbourCount += fetchGol(x + 1, y - 1); // Top right
+ neighbourCount += fetchGol(x - 1, y); // Left
+ neighbourCount += fetchGol(x + 1, y); // Right
+ neighbourCount += fetchGol(x - 1, y + 1); // Bottom left
+ neighbourCount += fetchGol(x, y + 1); // Bottom middle
+ neighbourCount += fetchGol(x + 1, y + 1); // Bottom right
+
+ if (neighbourCount == 3) setGol(x, y, 1);
+ else if (neighbourCount == 2) setGol(x, y, fetchGol(x, y));
+ else setGol(x, y, 0);
+}