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height_map_decels.cpp
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#include "height_map_decels.h"
#include "utility.h"
Ref<Mesh> HeightMapDecels::make_decels(Params params, const HeightMapData &data) {
_output_vertices.clear();
_output_normals.clear();
_output_colors.clear();
_output_uv.clear();
// _output_uv2.clear();
// _output_bones.clear();
// _output_tangents.clear();
// _output_weights.clear();
_output_indices.clear();
if (!params.smooth) {
; // TODO Faceted version
//return make_chunk_faceted(params, data)
}
int stride = 1 << params.lod;
Point2i max = params.origin + params.size * stride;
Point2i terrain_size(data.get_resolution(), data.get_resolution());
if (max.y >= terrain_size.y)
max.y = terrain_size.y;
if (max.x >= terrain_size.x)
max.x = terrain_size.x;
// Vector2 uv_scale = Vector2(
// 1.0 / static_cast<real_t>(terrain_size_x),
// 1.0 / static_cast<real_t>(terrain_size_y));
// Note: UVs aren't needed because they can be deduced from world positions
// Make central part
Point2i pos;
//draw decels
if (params.decels_enabled==true) {
int i = 0;
float decel_offset_x = -0.5;
float decel_offset_y = -0.5;
float height_offset = 0.1;
float decel_scale = 1.0;
int decel_y = 0;
int decel_x = 0;
float decel_y1 = 0;
float decel_x1 = 0;
float decel_normal_y = 0;
float decel_normal_x = 0;
float decel_offset_z = 0;
float grass_rand_x = 0;
float grass_rand_y = 0;
for (pos.y = params.origin.y; pos.y <= max.y; pos.y += stride) {
decel_y = pos.y-params.origin.y;
for (pos.x = params.origin.x; pos.x <= max.x; pos.x += stride) {
decel_x = pos.x-params.origin.x;
int loc = data.heights.index(pos);
//draw grass
if ((data.colors[loc].g > 0.8)&&(data.colors[loc].r < 0.2)&&(data.colors[loc].b < 0.2)&&(params.lod==0)) {
for (decel_offset_y = -0.5; decel_offset_y < 0.5; decel_offset_y+=0.05){
decel_normal_y = decel_offset_y*data.normals[loc].z;
decel_y1 = decel_y + decel_offset_y;
for (decel_offset_x = -0.5; decel_offset_x < 0.5; decel_offset_x+=0.05){
grass_rand_x = -0.03 + (0.06 * ((float)random() / RAND_MAX));
grass_rand_y = -0.03 + (0.06 * ((float)random() / RAND_MAX));
decel_normal_x = decel_offset_x*data.normals[loc].x;
decel_offset_z = decel_normal_y+decel_normal_x;
decel_offset_z = data.heights[loc]-decel_offset_z;
decel_y1 += grass_rand_y;
decel_x1 = decel_x + decel_offset_x + grass_rand_x;
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.005),
float(decel_offset_z-0.1),
float(decel_y1 - 0.005)));
_output_colors.push_back(Color(0,1,0,0));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.005),
float(decel_offset_z-0.1),
float(decel_y1 - 0.005)));
_output_colors.push_back(Color(0,1,0,0));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(1.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.005),
float(decel_offset_z-0.1),
float(decel_y1 + 0.005)));
_output_colors.push_back(Color(0,1,0,0));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(2.0,0.0));
height_offset = 0.03 + (0.15 * ((float)random() / RAND_MAX));
decel_offset_z+=height_offset;
grass_rand_x = -0.03 + (0.06 * ((float)random() / RAND_MAX));
grass_rand_y = -0.03 + (0.06 * ((float)random() / RAND_MAX));
decel_y1 += grass_rand_y;
decel_x1 += grass_rand_x;
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.002),
float(decel_offset_z),
float(decel_y1 - 0.002)));
_output_colors.push_back(Color(0,1,0,0));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,4.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.002),
float(decel_offset_z),
float(decel_y1 - 0.002)));
_output_colors.push_back(Color(0,1,0,0));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(1.0,4.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.002),
float(decel_offset_z),
float(decel_y1 + 0.002)));
_output_colors.push_back(Color(0,1,0,0));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(2.0,4.0));
_output_indices.push_back(i+4);
_output_indices.push_back(i);
_output_indices.push_back(i+1);
_output_indices.push_back(i);
_output_indices.push_back(i+4);
_output_indices.push_back(i+3);
_output_indices.push_back(i+1);
_output_indices.push_back(i+5);
_output_indices.push_back(i+4);
_output_indices.push_back(i+5);
_output_indices.push_back(i+1);
_output_indices.push_back(i+2);
_output_indices.push_back(i+5);
_output_indices.push_back(i);
_output_indices.push_back(i+3);
_output_indices.push_back(i+5);
_output_indices.push_back(i+2);
_output_indices.push_back(i);
i+=6;
decel_y1 += (0.45*grass_rand_y);
decel_x1 += (0.45*grass_rand_x);
if (((height_offset>0.15)&&(data.colors[loc].a>0.8))!=true) {
height_offset = 0.02 + (0.04 * ((float)random() / RAND_MAX));
decel_offset_z+=height_offset;
_output_vertices.push_back(Vector3(
float(decel_x1),
float(decel_offset_z),
float(decel_y1)));
_output_colors.push_back(Color(0,1,0,0));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(1.0,6.0));
_output_indices.push_back(i-3);
_output_indices.push_back(i-2);
_output_indices.push_back(i);
_output_indices.push_back(i-1);
_output_indices.push_back(i-3);
_output_indices.push_back(i);
_output_indices.push_back(i-2);
_output_indices.push_back(i-1);
_output_indices.push_back(i);
++i;
}
// daisies
if ((height_offset>0.15)&&(data.colors[loc].a>0.8)) {
//bottom of daisy head
height_offset += (0.05 * ((float)random() / RAND_MAX));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.002),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1 - 0.002)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.002),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1 - 0.002)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.002),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1 + 0.002)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
//first petal underside
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.038),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1 - 0.024)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.054),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset-0.003),
float(decel_y1)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.038),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1 + 0.018)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
//yellow core
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.002),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1 - 0.002)));
_output_colors.push_back(Color(1,1,0,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.002),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1 - 0.002)));
_output_colors.push_back(Color(1,1,0,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.002),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1 + 0.002)));
_output_colors.push_back(Color(1,1,0,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
// first petal topside
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.038),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1 - 0.024)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.054),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset-0.002),
float(decel_y1)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.038),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1 + 0.018)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
// second petal underside
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.035),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.043),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset-0.003),
float(decel_y1 +0.028)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.012),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1 +0.03)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
// second petal topside
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.035),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.043),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset-0.002),
float(decel_y1 +0.028)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.012),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1 + 0.03)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
// third petal underside
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.02),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1 - 0.035)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.012),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset-0.003),
float(decel_y1 - 0.052)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.024),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.001),
float(decel_y1 - 0.03)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
// third petal topside
_output_vertices.push_back(Vector3(
float(decel_x1 + 0.02),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1 - 0.035)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.012),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset-0.002),
float(decel_y1 - 0.052)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(decel_x1 - 0.024),
float(data.heights[loc]+((-1)*decel_offset_y*data.normals[loc].z)+((-1)*decel_offset_x*data.normals[loc].x)+height_offset+0.002),
float(decel_y1 - 0.03)));
_output_colors.push_back(Color(1,1,1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_indices.push_back(i);
_output_indices.push_back(i-3);
_output_indices.push_back(i-2);
_output_indices.push_back(i);
_output_indices.push_back(i-3);
_output_indices.push_back(i-1);
_output_indices.push_back(i);
_output_indices.push_back(i-2);
_output_indices.push_back(i+1);
_output_indices.push_back(i+1);
_output_indices.push_back(i-2);
_output_indices.push_back(i+2);
_output_indices.push_back(i+2);
_output_indices.push_back(i-3);
_output_indices.push_back(i-2);
_output_indices.push_back(i+2);
_output_indices.push_back(i-1);
_output_indices.push_back(i-3);
_output_indices.push_back(i+3);
_output_indices.push_back(i+1);
_output_indices.push_back(i+2);
_output_indices.push_back(i+3);
_output_indices.push_back(i+2);
_output_indices.push_back(i+5);
_output_indices.push_back(i+3);
_output_indices.push_back(i+5);
_output_indices.push_back(i+4);
_output_indices.push_back(i+3);
_output_indices.push_back(i+7);
_output_indices.push_back(i+1);
_output_indices.push_back(i+7);
_output_indices.push_back(i+3);
_output_indices.push_back(i+9);
_output_indices.push_back(i+10);
_output_indices.push_back(i+9);
_output_indices.push_back(i+3);
_output_indices.push_back(i+9);
_output_indices.push_back(i+4);
_output_indices.push_back(i+10);
_output_indices.push_back(i+11);
_output_indices.push_back(i+10);
_output_indices.push_back(i+4);
_output_indices.push_back(i+11);
_output_indices.push_back(i+4);
_output_indices.push_back(i+5);
_output_indices.push_back(i+8);
_output_indices.push_back(i+5);
_output_indices.push_back(i+2);
_output_indices.push_back(i+5);
_output_indices.push_back(i+8);
_output_indices.push_back(i+11);
_output_indices.push_back(i+8);
_output_indices.push_back(i+9);
_output_indices.push_back(i+11);
_output_indices.push_back(i+9);
_output_indices.push_back(i+8);
_output_indices.push_back(i+7);
_output_indices.push_back(i+11);
_output_indices.push_back(i+9);
_output_indices.push_back(i+10);
_output_indices.push_back(i+8);
_output_indices.push_back(i+6);
_output_indices.push_back(i+7);
_output_indices.push_back(i);
_output_indices.push_back(i+15);
_output_indices.push_back(i+12);
_output_indices.push_back(i+15);
_output_indices.push_back(i);
_output_indices.push_back(i+6);
_output_indices.push_back(i+15);
_output_indices.push_back(i+13);
_output_indices.push_back(i+12);
_output_indices.push_back(i+13);
_output_indices.push_back(i+15);
_output_indices.push_back(i+16);
_output_indices.push_back(i+14);
_output_indices.push_back(i+16);
_output_indices.push_back(i+17);
_output_indices.push_back(i+16);
_output_indices.push_back(i+14);
_output_indices.push_back(i+13);
_output_indices.push_back(i+2);
_output_indices.push_back(i+17);
_output_indices.push_back(i+8);
_output_indices.push_back(i+17);
_output_indices.push_back(i+2);
_output_indices.push_back(i+14);
_output_indices.push_back(i);
_output_indices.push_back(i+14);
_output_indices.push_back(i+2);
_output_indices.push_back(i+14);
_output_indices.push_back(i);
_output_indices.push_back(i+12);
_output_indices.push_back(i+14);
_output_indices.push_back(i+12);
_output_indices.push_back(i+13);
_output_indices.push_back(i+8);
_output_indices.push_back(i+15);
_output_indices.push_back(i+6);
_output_indices.push_back(i+15);
_output_indices.push_back(i+8);
_output_indices.push_back(i+17);
_output_indices.push_back(i+15);
_output_indices.push_back(i+17);
_output_indices.push_back(i+16);
_output_indices.push_back(i+18);
_output_indices.push_back(i+1);
_output_indices.push_back(i+7);
_output_indices.push_back(i+21);
_output_indices.push_back(i+7);
_output_indices.push_back(i+18);
_output_indices.push_back(i+18);
_output_indices.push_back(i+19);
_output_indices.push_back(i+21);
_output_indices.push_back(i+21);
_output_indices.push_back(i+22);
_output_indices.push_back(i+19);
_output_indices.push_back(i+23);
_output_indices.push_back(i+22);
_output_indices.push_back(i+19);
_output_indices.push_back(i+22);
_output_indices.push_back(i+20);
_output_indices.push_back(i+23);
_output_indices.push_back(i+23);
_output_indices.push_back(i+6);
_output_indices.push_back(i);
_output_indices.push_back(i);
_output_indices.push_back(i+23);
_output_indices.push_back(i+20);
_output_indices.push_back(i+1);
_output_indices.push_back(i);
_output_indices.push_back(i+20);
_output_indices.push_back(i+20);
_output_indices.push_back(i+1);
_output_indices.push_back(i+18);
_output_indices.push_back(i+18);
_output_indices.push_back(i+19);
_output_indices.push_back(i+20);
_output_indices.push_back(i+6);
_output_indices.push_back(i+7);
_output_indices.push_back(i+23);
_output_indices.push_back(i+7);
_output_indices.push_back(i+23);
_output_indices.push_back(i+21);
_output_indices.push_back(i+23);
_output_indices.push_back(i+22);
_output_indices.push_back(i+21);
i+=24;
}
}
}
}
//draw concrete tiles
if ((data.colors[loc].g > 0.8)&&(data.colors[loc].r < 0.2)&&(data.colors[loc].b > 0.8)&&(data.colors[loc].a > 0.8)&&(params.lod==0)) {
for (decel_offset_y = -0.5; decel_offset_y < 0.5; decel_offset_y+=0.5){
for (decel_offset_x = -0.5; decel_offset_x < 0.5; decel_offset_x+=0.5){
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)-0.1),
float(pos.y - params.origin.y + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.5 + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-((decel_offset_x+0.5)*data.normals[loc].x)-0.1),
float(pos.y - params.origin.y + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.5 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.5)*data.normals[loc].z)-((decel_offset_x+0.5)*data.normals[loc].x)-0.1),
float(pos.y - params.origin.y + 0.5 + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.5)*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)-0.1),
float(pos.y - params.origin.y + 0.5 + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)+0.05),
float(pos.y - params.origin.y + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.5 + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-((decel_offset_x+0.5)*data.normals[loc].x)+0.05),
float(pos.y - params.origin.y + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.5 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.5)*data.normals[loc].z)-((decel_offset_x+0.5)*data.normals[loc].x)+0.05),
float(pos.y - params.origin.y + 0.5 + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.5)*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)+0.05),
float(pos.y - params.origin.y + 0.5 + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.01 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.01)*data.normals[loc].z)-((decel_offset_x+0.01)*data.normals[loc].x)+0.05),
float(pos.y - params.origin.y + 0.01 + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.49 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.01)*data.normals[loc].z)-((decel_offset_x+0.49)*data.normals[loc].x)+0.05),
float(pos.y - params.origin.y + 0.01 + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.49 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.49)*data.normals[loc].z)-((decel_offset_x+0.49)*data.normals[loc].x)+0.05),
float(pos.y - params.origin.y + 0.49 + decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.01 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.49)*data.normals[loc].z)-((decel_offset_x+0.01)*data.normals[loc].x)+0.05),
float(pos.y - params.origin.y + 0.49+ decel_offset_y)));
_output_colors.push_back(Color(0.1,0.1,0.1,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.01 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.01)*data.normals[loc].z)-((decel_offset_x+0.01)*data.normals[loc].x)+0.08),
float(pos.y - params.origin.y + 0.01 + decel_offset_y)));
_output_colors.push_back(Color(0.7,0.7,0.7,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.49 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.01)*data.normals[loc].z)-((decel_offset_x+0.49)*data.normals[loc].x)+0.08),
float(pos.y - params.origin.y + 0.01 + decel_offset_y)));
_output_colors.push_back(Color(0.7,0.7,0.7,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.49 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.49)*data.normals[loc].z)-((decel_offset_x+0.49)*data.normals[loc].x)+0.08),
float(pos.y - params.origin.y + 0.49 + decel_offset_y)));
_output_colors.push_back(Color(0.7,0.7,0.7,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_vertices.push_back(Vector3(
float(pos.x - params.origin.x + 0.01 + decel_offset_x),
float(data.heights[loc]-((decel_offset_y+0.49)*data.normals[loc].z)-((decel_offset_x+0.01)*data.normals[loc].x)+0.08),
float(pos.y - params.origin.y + 0.49+ decel_offset_y)));
_output_colors.push_back(Color(0.7,0.7,0.7,1));
_output_normals.push_back(data.normals[loc]);
_output_uv.push_back(Vector2(0.0,0.0));
_output_indices.push_back(i+4);
_output_indices.push_back(i);
_output_indices.push_back(i+1);
_output_indices.push_back(i+4);
_output_indices.push_back(i+1);
_output_indices.push_back(i+5);
_output_indices.push_back(i+6);
_output_indices.push_back(i+5);
_output_indices.push_back(i+1);
_output_indices.push_back(i+2);
_output_indices.push_back(i+6);
_output_indices.push_back(i+1);
_output_indices.push_back(i+7);
_output_indices.push_back(i+6);
_output_indices.push_back(i+2);
_output_indices.push_back(i+7);
_output_indices.push_back(i+2);
_output_indices.push_back(i+3);
_output_indices.push_back(i+7);
_output_indices.push_back(i);
_output_indices.push_back(i+4);
_output_indices.push_back(i);
_output_indices.push_back(i+7);
_output_indices.push_back(i+3);
_output_indices.push_back(i+8);
_output_indices.push_back(i+4);
_output_indices.push_back(i+5);
_output_indices.push_back(i+8);
_output_indices.push_back(i+5);
_output_indices.push_back(i+9);
_output_indices.push_back(i+9);
_output_indices.push_back(i+5);
_output_indices.push_back(i+6);
_output_indices.push_back(i+6);
_output_indices.push_back(i+10);
_output_indices.push_back(i+9);
_output_indices.push_back(i+7);
_output_indices.push_back(i+10);
_output_indices.push_back(i+6);
_output_indices.push_back(i+7);
_output_indices.push_back(i+11);
_output_indices.push_back(i+10);
_output_indices.push_back(i+4);
_output_indices.push_back(i+11);
_output_indices.push_back(i+7);
_output_indices.push_back(i+8);
_output_indices.push_back(i+11);
_output_indices.push_back(i+4);
_output_indices.push_back(i+12);
_output_indices.push_back(i+8);
_output_indices.push_back(i+9);
_output_indices.push_back(i+13);
_output_indices.push_back(i+12);
_output_indices.push_back(i+9);
_output_indices.push_back(i+14);
_output_indices.push_back(i+13);
_output_indices.push_back(i+9);
_output_indices.push_back(i+10);
_output_indices.push_back(i+14);
_output_indices.push_back(i+9);
_output_indices.push_back(i+15);
_output_indices.push_back(i+14);
_output_indices.push_back(i+10);
_output_indices.push_back(i+10);
_output_indices.push_back(i+11);
_output_indices.push_back(i+15);
_output_indices.push_back(i+15);
_output_indices.push_back(i+11);
_output_indices.push_back(i+8);
_output_indices.push_back(i+15);
_output_indices.push_back(i+8);
_output_indices.push_back(i+12);
_output_indices.push_back(i+15);
_output_indices.push_back(i+13);
_output_indices.push_back(i+14);
_output_indices.push_back(i+15);
_output_indices.push_back(i+12);
_output_indices.push_back(i+13);
i+=16;
}
}
}
//draw tree
if ((data.colors[loc].g < 0.2)&&(data.colors[loc].r < 0.2)&&(data.colors[loc].b < 0.2)&&(data.colors[loc].a < 0.2)&&(params.lod==0)) {
if ((((pos.x-params.origin.x)==0)&&((pos.y-params.origin.y)==0))||(((pos.x-params.origin.x)==4)&&((pos.y-params.origin.y)==0))||(((pos.x-params.origin.x)==8)&&((pos.y-params.origin.y)==0))||(((pos.x-params.origin.x)==12)&&((pos.y-params.origin.y)==0))||(((pos.x-params.origin.x)==0)&&((pos.y-params.origin.y)==4))||(((pos.x-params.origin.x)==4)&&((pos.y-params.origin.y)==4))||(((pos.x-params.origin.x)==8)&&((pos.y-params.origin.y)==4))||(((pos.x-params.origin.x)==12)&&((pos.y-params.origin.y)==4))||(((pos.x-params.origin.x)==0)&&((pos.y-params.origin.y)==8))||(((pos.x-params.origin.x)==4)&&((pos.y-params.origin.y)==8))||(((pos.x-params.origin.x)==8)&&((pos.y-params.origin.y)==8))||(((pos.x-params.origin.x)==12)&&((pos.y-params.origin.y)==8))||(((pos.x-params.origin.x)==0)&&((pos.y-params.origin.y)==12))||(((pos.x-params.origin.x)==4)&&((pos.y-params.origin.y)==12))||(((pos.x-params.origin.x)==8)&&((pos.y-params.origin.y)==12))||(((pos.x-params.origin.x)==12)&&((pos.y-params.origin.y)==12))) {
_Seed._Long = 10131049502708829145UL;
int _byte_selector1 = (int(pos.x)-int(params.origin.x))%8;
int _byte_selector2 = (int(pos.y)-int(params.origin.y))%8;
uint8_t rand_val1 = _Seed._Short[_byte_selector1];
uint8_t rand_val2 = _Seed._Short[_byte_selector2];
randval = (_Seed._Short[_byte_selector]*_Seed._Short[_byte_selector])%255;
decel_offset_y = -1.2 + (2.41 * ((float)random() / RAND_MAX));
decel_offset_x = -1.2 + (2.41 * ((float)random() / RAND_MAX));
decel_scale = 0.2 + (0.91 * ((float)random() / RAND_MAX));
int branch1_start = 0;
int branch2_start = 0;
int parent_branch1_start = 0;
int parent_branch2_start = 0;
float rand_rot = 2.0f*3.14159263 * ((float)random() / RAND_MAX);
float root_indent = 0.8;
float root_outdent = 1.2;
float root_height = 0.4 + (0.8 * ((float)random() / RAND_MAX));
float node1_maxheight = 2.4;
float node1_minheight = 2.4;
float node1_height = node1_minheight + (node1_maxheight * ((float)random() / RAND_MAX));
float node1_bend_y = -0.32 + (0.641 * ((float)random() / RAND_MAX));
float node1_bend_x = -0.32 + (0.641 * ((float)random() / RAND_MAX));
float node1_branch1_length = (0.6 + (1.7 * ((float)random() / RAND_MAX)));
float node1_branch2_length = (0.6 + (1.7 * ((float)random() / RAND_MAX)));
float node1_min_incline = 0.02;
float node1_max_incline = 0.14;
float branch_min_incline = 0.02;
float branch_max_incline = 0.14;
float node1_incline = node1_min_incline + (((2.0f*3.14159263)*node1_max_incline)* ((float)random() / RAND_MAX));
float branch_ratio = 0.9;
int max_branch_layer =36;
Vector3 A = Vector3(
float(pos.x - params.origin.x - (root_indent*decel_scale) + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)-0.2),
float(pos.y - params.origin.y + decel_offset_y));
Vector3 B = Vector3(
float(pos.x - params.origin.x - (root_outdent*decel_scale) + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)-0.2),
float(pos.y - params.origin.y + decel_offset_y));
Vector3 C = Vector3(
float(pos.x - params.origin.x + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)-0.2),
float(pos.y - params.origin.y + decel_offset_y));
Vector3 AH = (A-C);
Vector3 BH = (B-C);
Vector3 N = Vector3(0.0,1.0,0.0).normalized();
for(int hi = 0; hi < 16; hi+=2)
{
float angle = (hi * (2.0f*3.14159263 / 16.0f))+rand_rot;
Vector3 rotatedH = AH.rotated(N, angle);
_output_vertices.push_back(C + rotatedH);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2((float(hi)*0.5),0.0));
_output_normals.push_back(C-(_output_vertices[i+hi]).normalized());
angle = (float(hi+1.0f) * (2.0f*3.14159263 / 16.0f))+rand_rot;
rotatedH = BH.rotated(N, angle);
_output_vertices.push_back(C + rotatedH);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2((float(hi+1.0)*0.5),0.0));
_output_normals.push_back(C-(_output_vertices[i+hi+1]).normalized());
}
_output_vertices.push_back(_output_vertices[i]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(8.0,0.0));
_output_normals.push_back(_output_normals[i]);
//17 tree base above ground
C.y+= root_height;
height_offset =root_height;
A = Vector3(
float(pos.x - params.origin.x - (0.839*decel_scale) + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)+root_height),
float(pos.y - params.origin.y + (0.148*decel_scale) + decel_offset_y));
AH = (A-C);
for(int hi = 0; hi < 16; ++hi)
{
float angle = (hi * (2.0f*3.14159263 / 16.0f)) + rand_rot;
Vector3 rotatedH = AH.rotated(N, angle);
_output_vertices.push_back(C + rotatedH);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2((float(hi)*0.5),4.0));
_output_normals.push_back(C-(_output_vertices[i+hi+17]).normalized());
}
_output_vertices.push_back(_output_vertices[i+17]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(8.0,4.0));
_output_normals.push_back(_output_normals[i+17]);
//34
decel_offset_y+= node1_bend_y;
decel_offset_x+= node1_bend_x;
height_offset += node1_height;
A = Vector3(
float(pos.x - params.origin.x - (0.711*decel_scale) + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)+height_offset),
float(pos.y - params.origin.y + decel_offset_y));
B = Vector3(
float(pos.x - params.origin.x + (0.711*decel_scale) + decel_offset_x),
float(data.heights[loc]-(decel_offset_y*data.normals[loc].z)-(decel_offset_x*data.normals[loc].x)+height_offset),
float(pos.y - params.origin.y + decel_offset_y));
C = ((A-B)/2.0)+B;
AH = (A-C);
for(int hi = 0; hi < 16; ++hi)
{
float angle = (hi * (2.0f*3.14159263 / 16.0f)) + rand_rot;
Vector3 rotatedH = AH.rotated(N, angle);
_output_vertices.push_back(C + rotatedH);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2((float(hi)*0.5),18.0));
_output_normals.push_back(C-(_output_vertices[i+hi+34]).normalized());
}
_output_vertices.push_back(_output_vertices[i+34]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(8.0,18.0));
_output_normals.push_back(_output_normals[i+34]);
//51 Bottom of First Branch
_output_vertices.push_back(_output_vertices[i+38]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(2.0,0.0));
//52
_output_vertices.push_back(_output_vertices[i+37]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(1.5,0.0));
//53
_output_vertices.push_back(_output_vertices[i+36]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(1.0,0.0));
//54
_output_vertices.push_back(_output_vertices[i+35]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(0.5,0.0));
Vector3 N2 = (_output_vertices[i+34]-_output_vertices[i+42]).normalized();
B = _output_vertices[i+42];
N = (_output_vertices[i+38]-_output_vertices[i+46]).normalized();
C = ((_output_vertices[i+34]-_output_vertices[i+42])/2.0)+_output_vertices[i+42];
AH = _output_vertices[i+34]-C;
for(int hi = 1; hi < 6; ++hi)
{
float angle = hi * (-2.0f*3.14159263 / 12.0f);
Vector3 rotatedH = AH.rotated(N, angle);
rotatedH = rotatedH.rotated(N2, node1_incline);
_output_vertices.push_back(C + rotatedH);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(-0.5-((hi-1)*0.6),0.0));
}
//60
_output_vertices.push_back(_output_vertices[i+41]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(-4.5,0.0));
//61
_output_vertices.push_back(_output_vertices[i+40]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(-5.0,0.0));
//62
_output_vertices.push_back(_output_vertices[i+39]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(-5.5,0.0));
//63 repeat of first vertex in cylinder
_output_vertices.push_back(_output_vertices[i+38]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(-6.0,0.0));
//64 near join vertex of first branch
_output_vertices.push_back(_output_vertices[i+34]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(0.0,-1.0));
//65 far join vertex of first branch
_output_vertices.push_back(_output_vertices[i+42]);
_output_colors.push_back(Color(0,0,0,0));
_output_uv.push_back(Vector2(-4.0,-1.0));
//66 -> 78
A = ((_output_vertices[i+65]-_output_vertices[i+64])/2.0)+_output_vertices[i+64];
C = ((_output_vertices[i+57]-_output_vertices[i+51])/2.0)+_output_vertices[i+51];
N = (C-A).normalized();
float NB = sqrt((N.x*N.x)+(N.y*N.y)+(N.z*N.z));
Vector3 H = branch_ratio*(_output_vertices[i+38]-A);
B = ((N/NB)*(node1_branch1_length*sqrt((H.x*H.x)+(H.y*H.y)+(H.z*H.z)))) + A;