something something capes

1 files changed, 39 insertions, 0 deletions

diff --git a/src/main/resources/assets/notenoughupdates/shaders/node.compute b/src/main/resources/assets/notenoughupdates/shaders/node.compute
new file mode 100644
index 00000000..df60dfdc
--- /dev/null
+++ b/src/main/resources/assets/notenoughupdates/shaders/node.compute
@@ -0,0 +1,39 @@
+#version 430 compatibility
+#extension GL_ARB_compute_shader               : enable
+#extension GL_ARB_shader_storage_buffer_object : enable
+
+#define HORZ_NODES 6
+#define VERT_NODES 22
+
+#define INDEX gl_GlobalInvocationID.x
+
+#define TARGET_DIST 0.05f
+
+layout(local_size_x = HORZ_NODES, local_size_y = 1, local_size_z = 1) in;
+
+struct Node {
+    vec3 position;
+    float numInfluences;
+    vec2 influences[8];
+};
+
+layout(std430, binding=0) buffer nodes_buffer {
+    Node nodes[HORZ_NODES*VERT_NODES];
+};
+
+
+void resolve(vec2 influence, float strength) {
+    vec3 dist = nodes[INDEX+int(influence.x)].position - nodes[INDEX].position;
+    float l = length(dist);
+    float factor = strength*(l - influence.y)/(2f*l);
+
+    if(INDEX >= HORZ_NODES) nodes[INDEX].position = nodes[INDEX].position + dist * factor;
+}
+
+void main() {
+    float kPrime = 1.0 - pow(1-0.9f, 1.0/30f); //K = 0.9f
+    kPrime = 0.5f;
+
+    int influences = int(nodes[INDEX].numInfluences);
+    for(int i=0; i<influences; i++) resolve(nodes[INDEX].influences[i], kPrime);
+}
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