games/voxel-test
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even more optimization

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onezplpl 2024-07-15 10:14:25 -04:00
parent e66093d684
commit 04a03877a2
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3 changed files with 109 additions and 40 deletions
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82
cubes.c
View file

@ -1,3 +1,5 @@
// the messiest part of this whole codebase
#include "const.h"
#include "gen.h"
#include <pthread.h>
@ -12,8 +14,13 @@ struct args {
int a;
int i;
int a3;
int *i2;
};
int ox = -1024;
int oy = -1024;
int oz = -1024;
Chunk *chunk_old = NULL;
int read_order = 0;
@ -69,31 +76,36 @@ void *gen_chunk(void *args) {
int a3 = args2.a3;
int a2 = args2.a;
int a = a2 % a3;
int *i2 = args2.i2;
int x2 = args2.pos.pos[0];
int y2 = args2.pos.pos[1];
int z2 = args2.pos.pos[2];
Vertex *cube = args2.cube;
Vertex *text = args2.text;
Vertex vNul = {{-10.0, -10.0, -10.0}};
if (x2 < 0 || y2 < 0 || z2 < 0) {
for (int a = i; a < args2.i + (BLOCK_ALL * 18) * a3; a += 6 * a3) {
cube[a] = vNul;
text[a] = vNul;
}
return 0;
}
// int is_text = args2.is_text;
int the_j = (((z2 / CHUNK_LENGTH) % CHUNK_DIAMETER_H) +
int the_j = a2; /*(((z2 / CHUNK_LENGTH) % CHUNK_DIAMETER_H) +
((x2 / CHUNK_LENGTH) % CHUNK_DIAMETER_H) * CHUNK_DIAMETER_H +
((y2 / CHUNK_LENGTH) % CHUNK_DIAMETER_V) * CHUNK_DIAMETER_H *
CHUNK_DIAMETER_H) %
(CHUNK_ALL * CBUF_ALL);
(CHUNK_ALL);*/
Chunk old_chunk = chunk_old[the_j > 0 ? the_j : 0];
Chunk chunk = fetch_chunk(x2 / CHUNK_LENGTH, y2 / CHUNK_LENGTH,
z2 / CHUNK_LENGTH, a, 0, read_order);
int cached =
(old_chunk.x == x2 / CHUNK_LENGTH && old_chunk.y == y2 / CHUNK_LENGTH &&
old_chunk.z == z2 / CHUNK_LENGTH && old_chunk.exists != 0);
Chunk chunk =
cached ? old_chunk
: fetch_chunk(x2 / CHUNK_LENGTH, y2 / CHUNK_LENGTH,
z2 / CHUNK_LENGTH, a, old_chunk.exists, read_order);
if (chunk.exists != 0 && the_j > 0)
if (chunk.exists != 0 && the_j > -1)
chunk_old[the_j] = chunk;
printf("Loading world... (%i / %i)\n", a2, CHUNK_ALL);
@ -119,11 +131,16 @@ void *gen_chunk(void *args) {
}
}
}
for (int a = i; a < args2.i + (BLOCK_ALL * 18) * a3; a += 6 * a3) {
cube[a] = vNul;
text[a] = vNul;
}
return (void *)i;
}
int gen_cubes(Vertex *cube, Vertex *text, int x, int y, int z, int r,
int is_purge) {
int gen_cubes(Vertex *cube, Vertex *text, Vertex *cubeO, Vertex *textO, int x,
int y, int z, int r, int is_purge, int *i2) {
Vertex noth = {{-1, -1, -1}};
for (int i = 0; i < CBLOCK_ALL * 18; i++) {
cube[i] = noth;
@ -150,10 +167,11 @@ int gen_cubes(Vertex *cube, Vertex *text, int x, int y, int z, int r,
}
if (!chunk_old) {
chunk_old = calloc((CHUNK_ALL * CBUF_ALL), sizeof(struct Chunk));
chunk_old = calloc((CHUNK_ALL), sizeof(struct Chunk));
}
read_order = !read_order;
pthread_t thread_id[a3];
int j = 0;
for (int y2 = y - (CHUNK_RADIUS_V + r) * CHUNK_LENGTH;
y2 <= y + (CHUNK_RADIUS_V + r) * CHUNK_LENGTH; y2 += CHUNK_LENGTH) {
@ -182,10 +200,26 @@ int gen_cubes(Vertex *cube, Vertex *text, int x, int y, int z, int r,
args[a2].a = a;
args[a2].i = i;
args[a2].a3 = a3;
args[a2].i2 = i2;
/*gen_chunk((void *)&args); */
pthread_create(&(thread_id[a2]), NULL, gen_chunk, (void *)&(args[a2]));
Chunk old_chunk = chunk_old[a];
int cached =
(old_chunk.x == pos.pos[0] / CHUNK_LENGTH &&
old_chunk.y == pos.pos[1] / CHUNK_LENGTH &&
old_chunk.z == pos.pos[2] / CHUNK_LENGTH && old_chunk.exists != 0);
if (cached) {
thread_return[a2] = i2[a2 / a3];
thread_id[a2] = -1;
} else if (pos.pos[0] < 0 || pos.pos[1] < 0 || pos.pos[2] < 0 || pos.pos[1] < (y * 0.95)) {
thread_return[a2] = -1;
thread_id[a2] = -1;
} else {
pthread_create(&(thread_id[a2]), NULL, gen_chunk,
(void *)&(args[a2]));
}
i += 6;
@ -193,6 +227,8 @@ int gen_cubes(Vertex *cube, Vertex *text, int x, int y, int z, int r,
}
for (int k = 0; k < a3; k++) {
if (thread_id[k] == -1)
continue;
pthread_join((thread_id[k]), (void **)&thread_return[k]);
}
int max = 0;
@ -202,10 +238,20 @@ int gen_cubes(Vertex *cube, Vertex *text, int x, int y, int z, int r,
max = (max > thread_return[a]) ? max : thread_return[a];
min = (min < thread_return[a]) ? min : thread_return[a];
}
i = max + 6;
max += 6;
i2[(a / a3) - 1] = max;
if (max > i) {
memcpy(&(cubeO[j]), &(cube[i - 6 * a3]), (max - i) * sizeof(Vertex));
memcpy(&(textO[j]), &(text[i - 6 * a3]), (max - i) * sizeof(Vertex));
j += max - i;
}
i = (BLOCK_ALL * 18) * a; // i = max + 6;
}
}
ox = x;
oy = y;
oz = z;
/* if (i < CBLOCK_ALL * 9 && r < MAX_R) {
printf("Expanding radius...\n");
return gen_cubes(cube, text, x / CHUNK_LENGTH, y / CHUNK_LENGTH,
@ -213,5 +259,5 @@ int gen_cubes(Vertex *cube, Vertex *text, int x, int y, int z, int r,
}
*/
return i;
return j; // i;
}

2
cubes.h
View file

@ -1,3 +1,3 @@
#include "const.h"
int gen_cubes(Vertex *cube, Vertex *text, int x, int y, int z, int r, int is_purge);
int gen_cubes(Vertex *cube, Vertex *text, Vertex *cubeO, Vertex *textO, int x, int y, int z, int r, int is_purge, int *i2);

65
main.c
View file

@ -45,7 +45,8 @@ static const char *fragment_shader_text =
" if (v_tex.x < 0.0 || v_tex.y < 0.0) { discard; }\n"
" dist = distance(v_pos_out, center + vec3(8,8,8))/65;\n"
" if (dist > 1.0) { dist = 1.0; }\n"
" color=vec4(texture(sampler_tex, v_tex).rgb,1.0)*(1.0-(dist*dist)) + vec4(0.2,0.5,0.7,1.0)*(dist*dist);\n"
" color=vec4(texture(sampler_tex, v_tex).rgb,1.0)*(1.0-(dist*dist)) + "
"vec4(0.2,0.5,0.7,1.0)*(dist*dist);\n"
"}\n";
int isCursor = 0;
@ -79,9 +80,12 @@ struct args {
int *cube_count;
Vertex **cube;
Vertex **text;
Vertex **cubeO;
Vertex **textO;
vec3 pos;
GLuint *vertex_buffer;
int *is_render;
int *i2;
};
void *render_chunks(void *args) {
@ -94,8 +98,9 @@ void *render_chunks(void *args) {
*args2.is_render = 0;
*cube_count =
gen_cubes(*args2.cube, *args2.text, args2.pos[0] / CHUNK_LENGTH,
args2.pos[1] / CHUNK_LENGTH, args2.pos[2] / CHUNK_LENGTH, 0, 0);
gen_cubes(*args2.cube, *args2.text, *args2.cubeO, *args2.textO,
args2.pos[0] / CHUNK_LENGTH, args2.pos[1] / CHUNK_LENGTH,
args2.pos[2] / CHUNK_LENGTH, 0, 0, args2.i2);
*args2.is_render = 2;
@ -125,9 +130,13 @@ int main(void) {
Vertex *cube = malloc(CTRI_ALL);
Vertex *text = malloc(CTRI_ALL);
Vertex *cubeO = malloc(CTRI_ALL);
Vertex *textO = malloc(CTRI_ALL);
int bleh = (CHUNK_DIAMETER_H + MAX_R * 2) * (CHUNK_DIAMETER_V + MAX_R * 2);
int *i2 = calloc(bleh, sizeof(int));
int cube_count = gen_cubes(cube, text, 10240 / CHUNK_LENGTH, 64 / CHUNK_LENGTH,
10240 / CHUNK_LENGTH, 0, 1);
int cube_count = gen_cubes(cube, text, cubeO, textO, 10240 / CHUNK_LENGTH,
64 / CHUNK_LENGTH, 10240 / CHUNK_LENGTH, 0, 1, i2);
GLuint vertex_buffer[2];
GLuint vertex_array;
@ -176,13 +185,14 @@ int main(void) {
glfwSetCursorPosCallback(window, cursor_position_callback);
vec3 pos = {10240, 48, 10240};
vec3 oldPos = {0,0,0};
vec3 oldPos = {0, 0, 0};
Chunk ch7;
ch7.exists = 0;
int state = cube_exists(pos[0], pos[1], pos[2], ch7, 0, 0);
while (1) {
if (state != cube_exists(pos[0], pos[1], pos[2], ch7, 0, 0)) break;
if (state != cube_exists(pos[0], pos[1], pos[2], ch7, 0, 0))
break;
pos[1] += (state ? 1 : -1);
}
@ -208,8 +218,10 @@ int main(void) {
mat4x4_identity(m);
mat4x4_perspective(p, 45.0 / 180.0 * M_PI, ratio, 0.1, 1000);
vec3 direction = {cosf(cy) * sinf(cx), sinf(cy), cosf(cy) * cosf(cx)};
vec3 right = {sinf(cx - 3.14f / 2.0f), 0, cosf(cx - 3.14f / 2.0f)};
vec3 direction = {cosf(cy) * sinf(cx) * 0.3, sinf(cy) * 0.3,
cosf(cy) * cosf(cx) * 0.3};
vec3 right = {sinf(cx - 3.14f / 2.0f) * 0.3, 0,
cosf(cx - 3.14f / 2.0f) * 0.3};
if (glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS) {
vec3_add(pos, pos, direction);
@ -238,11 +250,11 @@ int main(void) {
mat4x4_mul(mvp, mvp, m);
glUniformMatrix4fv(mvp_location, 1, GL_FALSE, (const GLfloat *)&mvp);
glUniform3fv(center_location, 1, (const GLfloat *)(&(oldPos[0])));
glUniform3fv(center_location, 1, (const GLfloat *)(&(pos[0])));
int ax = (int)(oldPos[0]/ CHUNK_LENGTH) - (int)(pos[0] / CHUNK_LENGTH);
int ay = (int)(oldPos[1]/ CHUNK_LENGTH) - (int)(pos[1] / CHUNK_LENGTH);
int az = (int)(oldPos[2]/ CHUNK_LENGTH) - (int)(pos[2] / CHUNK_LENGTH);
int ax = (int)(oldPos[0] / CHUNK_LENGTH) - (int)(pos[0] / CHUNK_LENGTH);
int ay = (int)(oldPos[1] / CHUNK_LENGTH) - (int)(pos[1] / CHUNK_LENGTH);
int az = (int)(oldPos[2] / CHUNK_LENGTH) - (int)(pos[2] / CHUNK_LENGTH);
if ((ax != 0 || ay != 0 || az != 0) && last_render < 0) {
struct args args;
@ -250,18 +262,21 @@ int main(void) {
args.cube = &cube;
args.text = &text;
args.pos[0] = pos[0];
args.cubeO = &cubeO;
args.textO = &textO;
args.pos[0] = pos[0] + direction[0] * CHUNK_LENGTH;
args.pos[1] = pos[1];
args.pos[2] = pos[2];
args.pos[2] = pos[2] + direction[2] * CHUNK_LENGTH;
args.vertex_buffer = vertex_buffer;
args.is_render = &is_render;
args.i2 = i2;
last_render = 120;
last_render = 40;
if (thread_id == 0) {
oldPos[0] = (int)(pos[0]/ CHUNK_LENGTH) * CHUNK_LENGTH;
oldPos[1] = (int)(pos[1]/ CHUNK_LENGTH) * CHUNK_LENGTH;
oldPos[2] = (int)(pos[2]/ CHUNK_LENGTH) * CHUNK_LENGTH;
oldPos[0] = (int)(args.pos[0] / CHUNK_LENGTH) * CHUNK_LENGTH;
oldPos[1] = (int)(args.pos[1] / CHUNK_LENGTH) * CHUNK_LENGTH;
oldPos[2] = (int)(args.pos[2] / CHUNK_LENGTH) * CHUNK_LENGTH;
pthread_create(&(thread_id), NULL, render_chunks, (void *)&(args));
}
}
@ -274,11 +289,11 @@ int main(void) {
if (is_render == 2) {
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer[1]);
glBufferSubData(GL_ARRAY_BUFFER, 0, (long)cube_count * sizeof(Vertex),
text);
textO); // text);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer[0]);
glBufferSubData(GL_ARRAY_BUFFER, 0, (long)cube_count * sizeof(Vertex),
cube);
cubeO); // cube);
if (thread_id != 0)
pthread_join(thread_id, NULL);
thread_id = 0;
@ -299,6 +314,14 @@ int main(void) {
glBindVertexArray(vertex_array);
glDrawArrays(GL_TRIANGLES, 0, cube_count);
/*/
for (int ch = 0; ch < bleh; ch++) {
int o = ch * BLOCK_ALL * 18 * (CHUNK_DIAMETER_H);
if (i2[ch] < o) continue;
glDrawArrays(GL_TRIANGLES, o, i2[ch] - o);
}
*/
}
free(cube);