REVIEWED: example: Compute shader Game-of-life

3 files changed, 0 insertions, 152 deletions

diff --git a/examples/shaders/resources/shaders/glsl430/gol.glsl b/examples/shaders/resources/shaders/glsl430/gol.glsl
deleted file mode 100644
index 47b1a55f..00000000
--- a/examples/shaders/resources/shaders/glsl430/gol.glsl
+++ /dev/null
@@ -1,64 +0,0 @@
-// Game of Life logic shader

-#version 430

-

-#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 neighbour_count = 0;

-    uint x = gl_GlobalInvocationID.x;

-    uint y = gl_GlobalInvocationID.y;

-

-    // Top left

-    neighbour_count += fetchGol(x - 1, y - 1);

-

-    // Top middle

-    neighbour_count += fetchGol(x, y - 1);

-

-    // Top right

-    neighbour_count += fetchGol(x + 1, y - 1);

-

-    // Left

-    neighbour_count += fetchGol(x - 1, y);

-

-    // Right

-    neighbour_count += fetchGol(x + 1, y);

-

-    // Bottom left

-    neighbour_count += fetchGol(x - 1, y + 1);

-

-    // Bottom middle

-    neighbour_count += fetchGol(x, y + 1);

-

-    // Bottom right

-    neighbour_count += fetchGol(x + 1, y + 1);

-

-    if (neighbour_count == 3)

-    {

-        setGol(x, y, 1);

-    }

-    else if (neighbour_count == 2)

-    {

-        setGol(x, y, fetchGol(x, y));

-    }

-    else

-    {

-        setGol(x, y, 0);

-    }

-}

diff --git a/examples/shaders/resources/shaders/glsl430/gol_render.glsl b/examples/shaders/resources/shaders/glsl430/gol_render.glsl
deleted file mode 100644
index bbc16eed..00000000
--- a/examples/shaders/resources/shaders/glsl430/gol_render.glsl
+++ /dev/null
@@ -1,34 +0,0 @@
-// Game of Life rendering shader

-// Just renders the content of the ssbo at binding 1 to screen.

-#version 430

-

-#define GOL_WIDTH 768

-

-// Input vertex attributes (from vertex shader)

-in vec2 fragTexCoord;

-

-// Output fragment color

-out vec4 finalColor;

-

-// Input game of life grid.

-layout(std430, binding = 1) readonly buffer golLayout

-{

-    uint golBuffer[];

-};

-

-// Output resolution

-uniform vec2 res;

-

-void main()

-{

-    ivec2 coords = ivec2(fragTexCoord * res);

-

-    if (golBuffer[coords.x + coords.y * uvec2(res).x] == 1)

-    {

-        finalColor = vec4(1.0);

-    }

-    else

-    {

-        finalColor = vec4(0.0, 0.0, 0.0, 1.0);

-    }

-}

diff --git a/examples/shaders/resources/shaders/glsl430/gol_transfert.glsl b/examples/shaders/resources/shaders/glsl430/gol_transfert.glsl
deleted file mode 100644
index 40d54458..00000000
--- a/examples/shaders/resources/shaders/glsl430/gol_transfert.glsl
+++ /dev/null
@@ -1,54 +0,0 @@
-// Game of life transfert shader.

-#version 430

-#define GOL_WIDTH 768

-

-// Structure definitions

-struct GolUpdateCmd {

-    uint x; // x coordinate of the gol command

-    uint y; // y coordinate of the gol command

-    uint w; // width of the filled zone

-    uint enabled; // whether to enable or disable zone

-};

-

-// Local compute unit size.

-layout (local_size_x = 1, local_size_y = 1, local_size_z = 1) in;

-

-// Output game of life grid buffer.

-layout(std430, binding = 1) buffer golBufferLayout

-{

-    uint golBuffer[]; // golBuffer[x, y] = golBuffer[x + GOL_WIDTH * y]

-};

-

-// Command buffer

-layout(std430, binding = 3) readonly restrict buffer golUpdateLayout

-{

-    uint count;

-    GolUpdateCmd commands[];

-};

-

-#define isInside(x, y) (((x) >= 0) && ((y) >= 0) && ((x) < GOL_WIDTH) && ((y) < GOL_WIDTH))

-#define getBufferIndex(x, y) ((x) + GOL_WIDTH * (y))

-

-void main()

-{

-    uint cmd_index = gl_GlobalInvocationID.x;

-    GolUpdateCmd cmd = commands[cmd_index];

-

-    for (uint x = cmd.x; x < (cmd.x + cmd.w); x++)

-    {

-        for (uint y = cmd.y; y < (cmd.y + cmd.w); y++)

-        {

-            if (isInside(x, y))

-            {

-                if (cmd.enabled != 0)

-                {

-                    atomicOr(golBuffer[getBufferIndex(x, y)], 1);

-                }

-                else

-                {

-                    atomicAnd(golBuffer[getBufferIndex(x, y)], 0);

-                }

-            }

-        }

-    }

-}