gpu: add sin/cos table to UBO

runelite-client/src/main/resources/net/runelite/client/plugins/gpu/common.glsl

@@ -29,8 +29,9 @@
  * Rotate a vertex by a given orientation in JAU
  */
 ivec4 rotate(ivec4 vertex, int orientation) {
-  int s = int(65536.0f * sin(orientation * UNIT));
-  int c = int(65536.0f * cos(orientation * UNIT));
+  ivec2 sinCos = sinCosTable[orientation];
+  int s = sinCos.x;
+  int c = sinCos.y;
   int x = vertex.z * s + vertex.x * c >> 16;
   int z = vertex.z * c - vertex.x * s >> 16;
   return ivec4(x, vertex.y, z, vertex.w);

runelite-client/src/main/resources/net/runelite/client/plugins/gpu/comp.glsl

@@ -33,6 +33,7 @@ layout(std140) uniform uniforms {
   int centerX;
   int centerY;
   int zoom;
+  ivec2 sinCosTable[2048];
 };
 
 shared int totalNum[12]; // number of faces with a given priority

runelite-client/src/main/resources/net/runelite/client/plugins/gpu/comp_small.glsl

@@ -33,6 +33,7 @@ layout(std140) uniform uniforms {
   int centerX;
   int centerY;
   int zoom;
+  ivec2 sinCosTable[2048];
 };
 
 shared int totalNum[12]; // number of faces with a given priority

runelite-client/src/main/resources/net/runelite/client/plugins/gpu/geom.glsl

@@ -37,6 +37,7 @@ layout(std140) uniform Uniforms {
     int centerX;
     int centerY;
     int zoom;
+    ivec2 sinCosTable[2048];
 };
 
 uniform mat4 projectionMatrix;