wanp/townengine
2
1
Fork 0
Code Issues 6 Pull Requests Packages Projects Releases Wiki Activity

Compare commits

base: wanp:d7a119a592104e627f7e299e31c0ece9a45b707b
Branches Tags
wanp:main
wanp:double
..
compare: wanp:a9d9936cb7ad7cca8992f43e2bc2876519df1e61
Branches Tags
wanp:main
wanp:double

2 Commits
d7a119a592 ... a9d9936cb7

Author SHA1 Message Date
veclavtalica
a9d9936cb7 /apps/demos/scenery: reduce fov 2025-01-05 23:37:08 +03:00
veclavtalica
4dd028aeae support arbitrary count of billboards per batch (in regards to preallocated short index buffer) 2025-01-05 23:36:48 +03:00
2 changed files with 84 additions and 78 deletions
Show Stats Expand all files Collapse all files

4
apps/demos/scenery/scenes/ingame.c
View File

@ -24,7 +24,7 @@ static void process_fly_mode(State *state) {
SceneIngame *scn = (SceneIngame *)state->scene;
DrawCameraFromPrincipalAxesResult dir_and_up =
draw_camera_from_principal_axes(scn->pos, (float)M_PI_2, scn->roll, scn->pitch, scn->yaw);
draw_camera_from_principal_axes(scn->pos, (float)M_PI_2 * 0.8f, scn->roll, scn->pitch, scn->yaw);
const Vec3 right = m_vec_norm(m_vec_cross(dir_and_up.direction, dir_and_up.up));
const float speed = 0.04f; /* TODO: put this in a better place */
@ -52,7 +52,7 @@ static void process_ground_mode(State *state) {
SceneIngame *scn = (SceneIngame *)state->scene;
DrawCameraFromPrincipalAxesResult dir_and_up =
draw_camera_from_principal_axes(scn->pos, (float)M_PI_2, scn->roll, scn->pitch, scn->yaw);
draw_camera_from_principal_axes(scn->pos, (float)M_PI_2 * 0.8f, scn->roll, scn->pitch, scn->yaw);
const Vec3 right = m_vec_norm(m_vec_cross(dir_and_up.direction, dir_and_up.up));
const float speed = 0.18f; /* TODO: put this in a better place */

10
src/rendering/twn_billboards.c
View File

@ -3,6 +3,7 @@
#include "twn_engine_context_c.h"
#include "twn_textures_c.h"
#include "twn_types.h"
#include "twn_util_c.h"
#include "twn_vec.h"
#include <stb_ds.h>
@ -85,12 +86,16 @@ void finally_draw_billboard_batch(struct MeshBatch const *batch,
const Vec2 uv2 = { xr, yr + hr };
const Vec2 uv3 = { xr, yr };
for (size_t batch_n = 0; batch_n <= (primitives_len - 1) / QUAD_ELEMENT_BUFFER_LENGTH; batch_n++) {
/* emit vertex data */
VertexBuffer const buffer = get_scratch_vertex_array();
VertexBufferBuilder builder = build_vertex_buffer(buffer, sizeof (ElementIndexedBillboard) * primitives_len);
VertexBufferBuilder builder = build_vertex_buffer(
buffer,
sizeof (ElementIndexedBillboard) * MIN(primitives_len - batch_n * QUAD_ELEMENT_BUFFER_LENGTH, QUAD_ELEMENT_BUFFER_LENGTH));
for (size_t i = 0; i < primitives_len; ++i) {
struct SpaceBillboard const billboard = ((SpaceBillboard *)(void *)batch->primitives)[i];
struct SpaceBillboard const billboard = ((SpaceBillboard *)(void *)batch->primitives)[batch_n * QUAD_ELEMENT_BUFFER_LENGTH + i];
/* a = (right + up) * size, b = (right - up) * size*/
Vec3 a, b;
@ -169,4 +174,5 @@ void finally_draw_billboard_batch(struct MeshBatch const *batch,
};
arrpush(deferred_commands, final_command);
}
}