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author3gg <3gg@shellblade.net>2023-05-26 19:12:59 -0700
committer3gg <3gg@shellblade.net>2023-05-26 19:12:59 -0700
commit29af7cf14cd55ece0a8c8b1305f3b71ab57bebd6 (patch)
treee175572b0afd1bcd32bea86696dbe320bbb1ba81 /gltfview
parent49d327315f5be8b72b7c100ec95ecaa5ace8126d (diff)
Add bounding boxes and an immediate mode renderer. Pending proper bounding boxes for animated meshes.
Diffstat (limited to 'gltfview')
-rw-r--r--gltfview/src/game.c41
1 files changed, 38 insertions, 3 deletions
diff --git a/gltfview/src/game.c b/gltfview/src/game.c
index f822b08..662272c 100644
--- a/gltfview/src/game.c
+++ b/gltfview/src/game.c
@@ -2,6 +2,7 @@
2 2
3#include <gfx/error.h> 3#include <gfx/error.h>
4#include <gfx/render_backend.h> 4#include <gfx/render_backend.h>
5#include <gfx/scene/camera.h>
5#include <gfx/scene/light.h> 6#include <gfx/scene/light.h>
6#include <gfx/scene/material.h> 7#include <gfx/scene/material.h>
7#include <gfx/scene/mesh.h> 8#include <gfx/scene/mesh.h>
@@ -32,8 +33,10 @@ static const char* FLIGHT_HELMET =
32 "/assets/glTF-Sample-Models/2.0/FlightHelmet/glTF/FlightHelmet.gltf"; 33 "/assets/glTF-Sample-Models/2.0/FlightHelmet/glTF/FlightHelmet.gltf";
33static const char* DAMAGED_HELMET = 34static const char* DAMAGED_HELMET =
34 "/assets/glTF-Sample-Models/2.0/DamagedHelmet/glTF/DamagedHelmet.gltf"; 35 "/assets/glTF-Sample-Models/2.0/DamagedHelmet/glTF/DamagedHelmet.gltf";
36static const char* GIRL =
37 "/home/jeanne/Nextcloud/assets/models/girl/girl-with-ground.gltf";
35 38
36#define DEFAULT_SCENE_FILE DAMAGED_HELMET 39#define DEFAULT_SCENE_FILE GIRL
37 40
38static const char* CLOUDS1_TEXTURE = "/assets/skybox/clouds1/clouds1_west.bmp"; 41static const char* CLOUDS1_TEXTURE = "/assets/skybox/clouds1/clouds1_west.bmp";
39 42
@@ -189,6 +192,26 @@ static bool load_texture_debugger_scene(Game* game) {
189 return true; 192 return true;
190} 193}
191 194
195/// Render the bounding boxes of all scene objects.
196static void render_bounding_boxes(ImmRenderer* imm, const SceneNode* node) {
197 if (gfx_get_node_type(node) == ObjectNode) {
198 // TODO: Look at the scene log. The JointNodes are detached from the
199 // ObjectNodes. This is why the boxes are not being transformed as expected
200 // here. Anima needs to animate boxes? Use OOBB in addition to AABB?
201 const mat4 model = gfx_get_node_global_transform(node);
202 const SceneObject* obj = gfx_get_node_object(node);
203 const aabb3 box = gfx_calc_object_aabb(obj);
204 gfx_imm_set_model_matrix(imm, &model);
205 gfx_imm_draw_aabb(imm, box);
206 }
207
208 // Render children's boxes.
209 for (NodeIter it = gfx_get_node_child(node); it;
210 it = gfx_get_next_child(it)) {
211 render_bounding_boxes(imm, gfx_get_iter_node(it));
212 }
213}
214
192bool game_new(Game* game, int argc, const char** argv) { 215bool game_new(Game* game, int argc, const char** argv) {
193 // TODO: getopt() to implement proper argument parsing. 216 // TODO: getopt() to implement proper argument parsing.
194 const char* scene_filepath = argc > 1 ? argv[1] : DEFAULT_SCENE_FILE; 217 const char* scene_filepath = argc > 1 ? argv[1] : DEFAULT_SCENE_FILE;
@@ -239,6 +262,8 @@ void game_end(Game* game) { gfx_destroy(&game->gfx); }
239void game_update(Game* game, double t, double dt) { 262void game_update(Game* game, double t, double dt) {
240 // LOGD("Tick"); 263 // LOGD("Tick");
241 264
265 // TODO: Animation should be handled by Gfx instead. Descend through the scene
266 // looking for animas and animate them. gfx_animate(t).
242 Anima* anima = gfx_get_node_anima(game->root_node); 267 Anima* anima = gfx_get_node_anima(game->root_node);
243 gfx_update_animation(anima, t); 268 gfx_update_animation(anima, t);
244 269
@@ -263,8 +288,18 @@ void game_update(Game* game, double t, double dt) {
263} 288}
264 289
265void game_render(const Game* game) { 290void game_render(const Game* game) {
266 gfx_render_scene( 291 gfx_render_scene(game->renderer, game->scene, game->camera);
267 game->renderer, game->render_backend, game->scene, game->camera); 292
293 ImmRenderer* imm = gfx_get_imm_renderer(game->gfx);
294 assert(imm);
295 gfx_imm_start(imm);
296 gfx_imm_set_camera(imm, gfx_get_camera_camera(game->camera));
297 gfx_imm_set_colour(imm, vec4_make(0.2, 0.2, 1.0, 0.3));
298 // DEBUG
299 // const aabb3 box = aabb3_make(vec3_make(0, 0, 0), vec3_make(1, 1, 1));
300 // gfx_imm_draw_aabb(imm, box);
301 render_bounding_boxes(imm, gfx_get_scene_root(game->scene));
302 gfx_imm_end(imm);
268} 303}
269 304
270void game_set_viewport(Game* game, int width, int height) { 305void game_set_viewport(Game* game, int width, int height) {