void main() {
    // Assign values to varying variables
    TexCoords = gl_MultiTexCoord0.st;
    // Use the texture matrix instead of dividing by 15 to maintain compatiblity for each version of Minecraft
    LightmapCoords = mat2(gl_TextureMatrix[1]) * gl_MultiTexCoord1.st;
    // Transform them into the [0, 1] range
    LightmapCoords = LightmapCoords * (16.0/15.0) - (16.0/15.0/32.0);
    Normal = gl_NormalMatrix * gl_Normal;
    Color = gl_Color;
    BlockID = mc_Entity.x;
    if (mc_Entity.x == 30.0){
        vec3 viewpos = (gl_ModelViewMatrix * gl_Vertex).xyz;
        vec3 feetPlayerpos = (gbufferModelViewInverse * vec4(viewpos, 1.0)).xyz;
        vec3 worldpos = feetPlayerpos + cameraPosition;

        worldpos.z += (generateWave(worldpos.x, worldpos.y, frameTimeCounter/800 * 200.0))/40;
        worldpos.x += (generateWave(worldpos.z, worldpos.y, frameTimeCounter/800 * 200.0 - 200))/40;

        worldpos.y -= 0.0001;

        vec3 feetPlayerpos2 = worldpos - cameraPosition;
        vec3 viewpos2 = (gbufferModelView * vec4(feetPlayerpos2, 1.0)).xyz;
        vec4 clippos = gl_ProjectionMatrix * vec4(viewpos2, 1.0);

        gl_Position = clippos;
    } else {
        gl_Position = ftransform();
    }
}

block.30 = oak_leaves spruce_leaves birch_leaves jungle_leaves acacia_leaves dark_oak_leaves mangrove_leaves cherry_leaves azalea_leaves flowering_azalea_leaves grass fern tall_grass large_fern rose_bush lilac peony sugar_cane