struct vg_context * vg_create_context(struct pipe_context *pipe,
const void *visual,
struct vg_context *share)
{
struct vg_context *ctx;
ctx = CALLOC_STRUCT(vg_context);
ctx->pipe = pipe;
if (!choose_depth_stencil_format(ctx)) {
FREE(ctx);
return NULL;
}
ctx->dispatch = api_create_dispatch();
vg_init_state(&ctx->state.vg);
ctx->state.dirty = ALL_DIRTY;
ctx->cso_context = cso_create_context(pipe);
ctx->default_paint = paint_create(ctx);
ctx->state.vg.stroke_paint = ctx->default_paint;
ctx->state.vg.fill_paint = ctx->default_paint;
ctx->mask.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
ctx->mask.sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->mask.sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->mask.sampler.normalized_coords = 0;
ctx->blend_sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
ctx->blend_sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->blend_sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->blend_sampler.normalized_coords = 0;
vg_set_error(ctx, VG_NO_ERROR);
ctx->owned_objects[VG_OBJECT_PAINT] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_IMAGE] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_MASK] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_FONT] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_PATH] = cso_hash_create();
ctx->renderer = renderer_create(ctx);
ctx->sc = shaders_cache_create(ctx);
ctx->shader = shader_create(ctx);
ctx->blit = util_create_blit(ctx->pipe, ctx->cso_context);
return ctx;
}
shader_t device_create_pixelshader(device_t device,
const char *shader, const char *file,
char **error_string)
{
struct gs_shader *ptr;
ptr = shader_create(device, SHADER_PIXEL, shader, file, error_string);
if (!ptr)
blog(LOG_ERROR, "device_create_pixelshader (GL) failed");
return ptr;
}
// создаём shader, загружаем исходник в opengl и устанавливаем, соотвествующий типу шейдера, бит
int load_shader(const char *shader_buffer_ptr, shader_t *shader, unsigned int shader_type, unsigned int *bit_set, unsigned int bit)
{
IF_FAILED0(shader_buffer_ptr && shader);
shader_create(shader, shader_type);
if(bit_set)
*bit_set |= bit; // устанавливаем бит шейдера
if(!shader_load_source_buffer(shader, shader_buffer_ptr)) {
ERROR_MSG("failed to load shader buffer in shader program file\n");
return 0;
}
return 1;
}
int main(int argc, char **argv)
{
int i;
Light light;
const char *filename;
Camera cam;
Vec3 position = {0, 0, 150e9};
Vec3 up = {0, 1, 0};
Vec3 target = {0, 0, 0};
Shader *shader_light;
Shader *shader_simple;
Mesh *mesh;
Renderable planet;
if (argc < 2)
filename = STRINGIFY(ROOT_PATH) "/data/teapot.ply";
else
filename = argv[1];
solsys = solsys_load(STRINGIFY(ROOT_PATH) "/data/sol.ini");
if (solsys == NULL)
return 1;
mesh = mesh_import(filename);
if (mesh == NULL)
return 1;
for (i = 0; i < mesh->num_vertices; i++) /* Blow up the teapot */
{
mesh->vertex[i].x = mesh->vertex[i].x * 100;
mesh->vertex[i].y = mesh->vertex[i].y * 100;
mesh->vertex[i].z = mesh->vertex[i].z * 100;
}
cam.fov = M_PI/4;
cam.left = 0;
cam.bottom = 0;
cam.width = 1024;
cam.height = 768;
cam.zNear = 1e6;
cam.zFar = 4.5e15;
init_allegro(&cam);
cam_lookat(&cam, position, target, up);
glewInit();
shader_light = shader_create(STRINGIFY(ROOT_PATH) "/data/lighting.v.glsl",
STRINGIFY(ROOT_PATH) "/data/lighting.f.glsl");
if (shader_light == NULL)
return 1;
shader_simple = shader_create(STRINGIFY(ROOT_PATH) "/data/simple.v.glsl",
STRINGIFY(ROOT_PATH) "/data/simple.f.glsl");
if (shader_simple == NULL)
return 1;
glmProjectionMatrix = glmNewMatrixStack();
glmViewMatrix = glmNewMatrixStack();
glmModelMatrix = glmNewMatrixStack();
light.position = light_pos;
memcpy(light.ambient, light_ambient, sizeof(light_ambient));
memcpy(light.diffuse, light_diffuse, sizeof(light_diffuse));
memcpy(light.specular, light_specular, sizeof(light_specular));
glClearColor(20/255., 30/255., 50/255., 1.0);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glPointSize(2);
planet.data = mesh;
planet.upload_to_gpu = mesh_upload_to_gpu;
planet.render = mesh_render;
planet.shader = shader_light;
renderable_upload_to_gpu(&planet);
/* Transformation matrices */
cam_projection_matrix(&cam, glmProjectionMatrix);
/* Start rendering */
while(handle_input(ev_queue, &cam))
{
void *ctx;
Entity *renderlist, *prev;
t += 365*86400;
/* Physics stuff */
solsys_update(solsys, t);
ctx = ralloc_context(NULL);
prev = NULL;
for (i = 0; i < solsys->num_bodies; i++)
{
Entity *e;
e = ralloc(ctx, Entity);
e->orientation = (Quaternion) {1, 0, 0, 0};
e->renderable = &planet;
e->position = solsys->body[i].position;
e->radius = solsys->body[i].radius;
e->prev = prev;
e->next = NULL;
if (prev != NULL)
e->prev->next = e;
prev = e;
if (i == 0)
renderlist = e;
}
/* Rendering stuff */
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glmLoadIdentity(glmModelMatrix);
glmLoadIdentity(glmViewMatrix);
cam_view_matrix(&cam, glmViewMatrix); /* view */
light_upload_to_gpu(&light, shader_light);
render_entity_list(renderlist);
al_flip_display();
calcfps();
ralloc_free(ctx);
}
ralloc_free(mesh);
ralloc_free(solsys);
shader_delete(shader_light);
shader_delete(shader_simple);
glmFreeMatrixStack(glmProjectionMatrix);
glmFreeMatrixStack(glmViewMatrix);
glmFreeMatrixStack(glmModelMatrix);
al_destroy_display(dpy);
return 0;
}
int32_t main(int32_t argc, char *argv[]) {
if( init_sdl2() ) {
return 1;
}
int width = 1280;
int height = 720;
SDL_Window* window;
sdl2_window("cute3d: " __FILE__, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, &window);
SDL_GLContext* context;
sdl2_glcontext(3, 2, window, &context);
if( init_shader() ) {
return 1;
}
if( init_canvas(width, height) ) {
return 1;
}
canvas_create("global_dynamic_canvas", &global_dynamic_canvas);
canvas_create("global_static_canvas", &global_static_canvas);
struct Vbo vbo = {0};
vbo_create(&vbo);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX, 3, GL_FLOAT, GL_STATIC_DRAW);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX_NORMAL, 3, GL_FLOAT, GL_STATIC_DRAW);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX_COLOR, 4, GL_UNSIGNED_BYTE, GL_STATIC_DRAW);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX_NORMAL, NORMAL_SIZE, GL_FLOAT, GL_STATIC_DRAW);
struct Ibo ibo = {0};
ibo_create(GL_TRIANGLES, GL_UNSIGNED_INT, GL_STATIC_DRAW, &ibo);
struct SolidTetrahedron hard_tetrahedron = {0};
struct SolidBox hard_cube = {0};
struct SolidSphere16 hard_sphere16 = {0};
struct SolidSphere32 hard_sphere32 = {0};
solid_tetrahedron_create(1.0, (Color){255, 0, 0, 255}, &hard_tetrahedron);
solid_cube_create(0.5, (Color){0, 255, 0, 255}, &hard_cube);
solid_sphere16_create(16, 8, 0.75, (Color){0, 255, 255, 255}, &hard_sphere16);
solid_sphere32_create(32, 16, 0.75, (Color){255, 255, 0, 255}, &hard_sphere32);
solid_optimize((struct Solid*)&hard_tetrahedron);
solid_optimize((struct Solid*)&hard_cube);
solid_optimize((struct Solid*)&hard_sphere16);
solid_optimize((struct Solid*)&hard_sphere32);
struct VboMesh hard_tetrahedron_mesh, hard_box_mesh, hard_cube_mesh, hard_sphere16_mesh, hard_sphere32_mesh;
vbo_mesh_create_from_solid((struct Solid*)&hard_tetrahedron, &vbo, &ibo, &hard_tetrahedron_mesh);
vbo_mesh_create_from_solid((struct Solid*)&hard_cube, &vbo, &ibo, &hard_cube_mesh);
vbo_mesh_create_from_solid((struct Solid*)&hard_sphere16, &vbo, &ibo, &hard_sphere16_mesh);
vbo_mesh_create_from_solid((struct Solid*)&hard_sphere32, &vbo, &ibo, &hard_sphere32_mesh);
struct SolidTetrahedron smooth_tetrahedron = {0};
struct SolidBox smooth_cube = {0};
struct SolidSphere16 smooth_sphere16 = {0};
struct SolidSphere32 smooth_sphere32 = {0};
solid_tetrahedron_create(1.0, (Color){255, 0, 0, 255}, &smooth_tetrahedron);
solid_cube_create(0.5, (Color){0, 255, 0, 255}, &smooth_cube);
solid_sphere16_create(16, 8, 0.75, (Color){0, 255, 255, 255}, &smooth_sphere16);
solid_sphere32_create(32, 16, 0.75, (Color){255, 255, 0, 255}, &smooth_sphere32);
solid_optimize((struct Solid*)&smooth_tetrahedron);
solid_optimize((struct Solid*)&smooth_cube);
solid_optimize((struct Solid*)&smooth_sphere16);
solid_optimize((struct Solid*)&smooth_sphere32);
solid_smooth_normals((struct Solid*)&smooth_tetrahedron, smooth_tetrahedron.normals, smooth_tetrahedron.normals);
solid_smooth_normals((struct Solid*)&smooth_cube, smooth_cube.normals, smooth_cube.normals);
solid_smooth_normals((struct Solid*)&smooth_sphere16, smooth_sphere16.normals, smooth_sphere16.normals);
solid_smooth_normals((struct Solid*)&smooth_sphere32, smooth_sphere32.normals, smooth_sphere32.normals);
struct VboMesh smooth_tetrahedron_mesh, smooth_box_mesh, smooth_cube_mesh, smooth_sphere16_mesh, smooth_sphere32_mesh;
vbo_mesh_create_from_solid((struct Solid*)&smooth_tetrahedron, &vbo, &ibo, &smooth_tetrahedron_mesh);
vbo_mesh_create_from_solid((struct Solid*)&smooth_cube, &vbo, &ibo, &smooth_cube_mesh);
vbo_mesh_create_from_solid((struct Solid*)&smooth_sphere16, &vbo, &ibo, &smooth_sphere16_mesh);
vbo_mesh_create_from_solid((struct Solid*)&smooth_sphere32, &vbo, &ibo, &smooth_sphere32_mesh);
struct Arcball arcball = {0};
arcball_create(width, height, (Vec4f){2.5,17.0,17.0,1.0}, (Vec4f){2.5,0.0,0.0,1.0}, 0.1, 100.0, &arcball);
float circular_motion_angle = 0.0f;
float circular_motion_speed = (2.0f*PI)/30;
float circular_motion_radius = 12.0f;
Vec3f light_position = { circular_motion_radius, 10.0, circular_motion_radius };
Vec3f light_direction = {0};
vec_sub((Vec3f){0.0f, 0.0f, 0.0f}, light_position, light_direction);
vec_normalize(light_direction, light_direction);
Vec3f eye_position = {0};
vec_copy3f(arcball.camera.pivot.position, eye_position);
Color ambiance = {50, 25, 150, 255};
Color specular = {255, 255, 255, 255};
float material_shininess = 1.0;
Vec4f material_coefficients = { 0.8, 0.2, 0.0, 0.0 };
// flat
struct Shader flat_shader = {0};
shader_create(&flat_shader);
shader_attach(&flat_shader, GL_VERTEX_SHADER, "prefix.vert", 1, "flat_shading.vert");
shader_attach(&flat_shader, GL_FRAGMENT_SHADER, "prefix.frag", 1, "flat_shading.frag");
shader_make_program(&flat_shader, SHADER_DEFAULT_NAMES, "flat_shader");
shader_set_uniform_3f(&flat_shader, flat_shader.program, SHADER_UNIFORM_LIGHT_DIRECTION, 3, GL_FLOAT, light_direction);
shader_set_uniform_4f(&flat_shader, flat_shader.program, SHADER_UNIFORM_AMBIENT_LIGHT, 4, GL_UNSIGNED_BYTE, ambiance);
// gouraud
struct Shader gouraud_shader = {0};
shader_create(&gouraud_shader);
shader_attach(&gouraud_shader, GL_VERTEX_SHADER, "prefix.vert", 1, "gouraud_shading.vert");
shader_attach(&gouraud_shader, GL_FRAGMENT_SHADER, "prefix.frag", 1, "gouraud_shading.frag");
shader_make_program(&gouraud_shader, SHADER_DEFAULT_NAMES, "gouraud_shader");
shader_set_uniform_3f(&gouraud_shader, gouraud_shader.program, SHADER_UNIFORM_LIGHT_POSITION, 3, GL_FLOAT, light_position);
shader_set_uniform_3f(&gouraud_shader, gouraud_shader.program, SHADER_UNIFORM_EYE_POSITION, 3, GL_FLOAT, eye_position);
shader_set_uniform_4f(&gouraud_shader, gouraud_shader.program, SHADER_UNIFORM_AMBIENT_LIGHT, 4, GL_UNSIGNED_BYTE, ambiance);
shader_set_uniform_4f(&gouraud_shader, gouraud_shader.program, SHADER_UNIFORM_SPECULAR_LIGHT, 4, GL_UNSIGNED_BYTE, specular);
shader_set_uniform_1f(&gouraud_shader, gouraud_shader.program, SHADER_UNIFORM_MATERIAL_SHININESS, 1, GL_FLOAT, &material_shininess);
shader_set_uniform_4f(&gouraud_shader, gouraud_shader.program, SHADER_UNIFORM_MATERIAL_COEFFICIENTS, 4, GL_FLOAT, material_coefficients);
shader_set_uniform_3f(&gouraud_shader, gouraud_shader.program, SHADER_UNIFORM_EYE_POSITION, 3, GL_FLOAT, &arcball.camera.pivot.position);
Mat identity = IDENTITY_MAT;
draw_grid(&global_static_canvas, 0, identity, (Color){127, 127, 127, 255}, 0.03f, 12.0f, 12.0f, 12);
Mat shading_label_transform = IDENTITY_MAT;
Quat text_rotation = IDENTITY_QUAT;
quat_from_axis_angle((Vec3f)X_AXIS, -PI/2.0f, text_rotation);
mat_rotate(shading_label_transform, text_rotation, shading_label_transform);
mat_translate(shading_label_transform, (float[4]){ 6.5, 0.0, -2.5, 1.0 }, shading_label_transform);
struct vg_context * vg_create_context(struct pipe_context *pipe,
const void *visual,
struct vg_context *share)
{
struct vg_context *ctx;
unsigned i;
ctx = CALLOC_STRUCT(vg_context);
ctx->pipe = pipe;
if (!choose_depth_stencil_format(ctx)) {
FREE(ctx);
return NULL;
}
ctx->dispatch = api_create_dispatch();
vg_init_state(&ctx->state.vg);
ctx->state.dirty = ALL_DIRTY;
ctx->cso_context = cso_create_context(pipe);
init_clear(ctx);
ctx->default_paint = paint_create(ctx);
ctx->state.vg.stroke_paint = ctx->default_paint;
ctx->state.vg.fill_paint = ctx->default_paint;
ctx->mask.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->mask.sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
ctx->mask.sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->mask.sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->mask.sampler.normalized_coords = 0;
ctx->blend_sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
ctx->blend_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
ctx->blend_sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->blend_sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
ctx->blend_sampler.normalized_coords = 0;
for (i = 0; i < 2; i++) {
ctx->velems[i].src_offset = i * 4 * sizeof(float);
ctx->velems[i].instance_divisor = 0;
ctx->velems[i].vertex_buffer_index = 0;
ctx->velems[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
}
vg_set_error(ctx, VG_NO_ERROR);
ctx->owned_objects[VG_OBJECT_PAINT] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_IMAGE] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_MASK] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_FONT] = cso_hash_create();
ctx->owned_objects[VG_OBJECT_PATH] = cso_hash_create();
ctx->renderer = renderer_create(ctx);
ctx->sc = shaders_cache_create(ctx);
ctx->shader = shader_create(ctx);
ctx->blit = util_create_blit(ctx->pipe, ctx->cso_context);
return ctx;
}
int32_t main(int32_t argc, char *argv[]) {
if( init_sdl2() ) {
return 1;
}
SDL_Window* window;
sdl2_window("test-shading", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, &window);
SDL_GLContext* context;
sdl2_glcontext(3, 2, window, (Color){0, 0, 0, 255}, &context);
if( init_shader() ) {
return 1;
}
if( init_vbo() ) {
return 1;
}
if( init_canvas(1280,720) ) {
return 1;
}
canvas_create("global_dynamic_canvas", 1280, 720, &global_dynamic_canvas);
canvas_create("global_static_canvas", 1280, 720, &global_static_canvas);
struct Vbo test_vbo = {0};
vbo_create(&test_vbo);
vbo_add_buffer(&test_vbo, SHADER_ATTRIBUTE_VERTEX, 3, GL_FLOAT, GL_STATIC_DRAW);
struct Ibo test_ibo = {0};
ibo_create(GL_TRIANGLES, GL_UNSIGNED_INT, GL_STATIC_DRAW, &test_ibo);
struct VboMesh test_mesh1 = {0};
vbo_mesh_create(&test_vbo, &test_ibo, &test_mesh1);
float triangle1[3*3] = {1.0, 1.0, 1.0, 2.0, 2.0, 2.0, 3.0, 3.0, 3.0};
vbo_mesh_append_attributes(&test_mesh1, SHADER_ATTRIBUTE_VERTEX, 3, GL_FLOAT, 3, &triangle1);
vbo_mesh_print(&test_mesh1);
struct VboMesh test_mesh2 = {0};
vbo_mesh_create(&test_vbo, &test_ibo, &test_mesh2);
float triangle2[3*3] = {4.0, 4.0, 4.0, 5.0, 5.0, 5.0, 6.0, 6.0, 6.0};
vbo_mesh_append_attributes(&test_mesh2, SHADER_ATTRIBUTE_VERTEX, 3, GL_FLOAT, 3, &triangle2);
vbo_mesh_print(&test_mesh2);
struct Vbo vbo = {0};
vbo_create(&vbo);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX, 3, GL_FLOAT, GL_STATIC_DRAW);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX_NORMAL, 3, GL_FLOAT, GL_STATIC_DRAW);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX_COLOR, 4, GL_UNSIGNED_BYTE, GL_STATIC_DRAW);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_SMOOTH_NORMAL, NORMAL_SIZE, GL_FLOAT, GL_STATIC_DRAW);
struct Ibo ibo = {0};
ibo_create(GL_TRIANGLES, GL_UNSIGNED_INT, GL_STATIC_DRAW, &ibo);
struct SolidTetrahedron tetrahedron = {0};
solid_tetrahedron_create(1.0, (Color){255, 0, 0, 255}, &tetrahedron);
solid_optimize((struct Solid*)&tetrahedron);
struct SolidTetrahedron tetrahedron2 = {0};
solid_tetrahedron_create(1.0, (Color){255, 0, 255, 255}, &tetrahedron2);
solid_optimize((struct Solid*)&tetrahedron2);
struct SolidBox cube = {0};
solid_cube_create(1.0, (Color){0, 255, 0, 255}, &cube);
solid_optimize((struct Solid*)&cube);
struct SolidBox cube2 = {0};
solid_cube_create(1.0, (Color){0, 255, 255, 255}, &cube2);
solid_optimize((struct Solid*)&cube2);
struct VboMesh tetrahedron_mesh;
vbo_mesh_create_from_solid((struct Solid*)&tetrahedron, &vbo, &ibo, &tetrahedron_mesh);
struct VboMesh cube_mesh = {0};
vbo_mesh_create_from_solid((struct Solid*)&cube, &vbo, &ibo, &cube_mesh);
struct VboMesh tetrahedron_mesh2;
vbo_mesh_create_from_solid((struct Solid*)&tetrahedron2, &vbo, &ibo, &tetrahedron_mesh2);
struct VboMesh cube_mesh2 = {0};
vbo_mesh_create_from_solid((struct Solid*)&cube2, &vbo, &ibo, &cube_mesh2);
vbo_mesh_print(&tetrahedron_mesh);
vbo_mesh_print(&tetrahedron_mesh2);
vbo_mesh_print(&cube_mesh);
vbo_mesh_print(&cube_mesh2);
struct Shader flat_shader = {0};
shader_create(&flat_shader);
shader_attach(&flat_shader, GL_VERTEX_SHADER, "prefix.vert", 1, "flat_shading.vert");
shader_attach(&flat_shader, GL_FRAGMENT_SHADER, "prefix.frag", 1, "flat_shading.frag");
shader_make_program(&flat_shader, "flat_shader");
Vec4f light_direction = { 0.2, -0.5, -1.0 };
shader_set_uniform_3f(&flat_shader, flat_shader.program, SHADER_UNIFORM_LIGHT_DIRECTION, 3, GL_FLOAT, light_direction);
Color ambiance = {50, 25, 150, 255
};
shader_set_uniform_4f(&flat_shader, flat_shader.program, SHADER_UNIFORM_AMBIENT_LIGHT, 4, GL_UNSIGNED_BYTE, ambiance);
struct Arcball arcball = {0};
arcball_create(window, (Vec4f){0.0,8.0,8.0,1.0}, (Vec4f){0.0,0.0,0.0,1.0}, 0.1, 100.0, &arcball);
Mat identity;
mat_identity(identity);
Quat grid_rotation = {0};
quat_from_vec_pair((Vec4f){0.0, 0.0, 1.0, 1.0}, (Vec4f){0.0, 1.0, 0.0, 1.0}, grid_rotation);
Mat grid_transform = {0};
quat_to_mat(grid_rotation, grid_transform);
draw_grid(&global_static_canvas, 0, grid_transform, (Color){127, 127, 127, 255}, 0.03f, 12.0f, 12.0f, 12);
while (true) {
SDL_Event event;
while( SDL_PollEvent(&event) ) {
switch (event.type) {
case SDL_QUIT:
goto done;
case SDL_KEYDOWN: {
SDL_KeyboardEvent* key_event = (SDL_KeyboardEvent*)&event;
if(key_event->keysym.scancode == SDL_SCANCODE_ESCAPE) {
goto done;
}
break;
}
}
arcball_event(&arcball, event);
}
sdl2_gl_set_swap_interval(1);
ogl_debug( glClearDepth(1.0f);
glClearColor(.0f, .0f, .0f, 1.0f);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); );
Mat transform = {0};
mat_translate(identity, (float[4]){ -1.0, 1.0, -1.0, 1.0 }, transform);
void renderer_init()
{
SYS_VERIFY( shader_create( &s_renderer.paperShader, &s_shader_paper, 1u, 1u, 0u ) );
SYS_VERIFY( shader_create( &s_renderer.penShader, &s_shader_pen, 0u, 2u, 0u ) );
SYS_VERIFY( shader_create( &s_renderer.pageShader, &s_shader_page, 0u, 0u, 3u ) );
SYS_VERIFY( shader_create( &s_renderer.pageFlipShader, &s_shader_pageflip, 1u, 0u, 2u ) );
SYS_VERIFY( shader_create( &s_renderer.burnHoleShader, &s_shader_burnhole, 0u, 2u, 1u ) );
SYS_VERIFY( shader_create( &s_renderer.noiseShader, &s_shader_noise, 0u, 0u, 0u ) );
#ifndef SYS_BUILD_MASTER
SYS_VERIFY( shader_create( &s_renderer.debugPenShader, &s_shader_debugpen, 1u, 0u, 0u ) );
#endif
SYS_VERIFY( rendertarget_create( &s_renderer.noiseTarget, 512u, 512u, PixelFormat_R8G8B8A8 ) );
graphics_setBlendMode( BlendMode_Disabled );
// fill noise map:
graphics_setRenderTarget( &s_renderer.noiseTarget );
graphics_setShader( &s_renderer.noiseShader );
graphics_drawFullscreenQuad();
const int width = sys_getScreenWidth();
const int height = sys_getScreenHeight();
// create page:
for( uint i = 0u; i < SYS_COUNTOF( s_renderer.pages ); ++i )
{
page_create( &s_renderer.pages[ i ], width, height );
}
s_renderer.currentPage = 0u;
s_renderer.lastPage = 1u;
s_renderer.currentCommand = 0u;
s_renderer.pageNumber = 0u;
s_renderer.pageState = PageState_Done;
s_renderer.stateTime = 0.0f;
clearStrokeBuffer( &s_renderer.strokeBuffer );
float3 color;
color.x = 0.2f;
color.y = 0.2f;
color.z = 0.2f;
createPen( &s_renderer.pens[ Pen_Default ], 2.0f, 1.0f, &color );
createPen( &s_renderer.pens[ Pen_Font ], 2.0f, 1.0f, &color );
createPen( &s_renderer.pens[ Pen_Fat ], 3.0f, 1.0f, &color );
createPen( &s_renderer.pens[ Pen_DebugRed ], 2.0f, 1.0f, float3_set( &color, 1.0f, 0.0f, 0.0f ) );
createPen( &s_renderer.pens[ Pen_DebugGreen ], 2.0f, 1.0f, float3_set( &color, 0.0f, 1.0f, 0.0f ) );
createPen( &s_renderer.pens[ Pen_PageNumber ], 2.0f, 1.0f, float3_set( &color, 0.0f, 0.0f, 0.0f ) );
// create page flip mesh:
createPageFlipMesh( &s_renderer.pageFlipMesh, 64u, 36u );
s_renderer.flipTime = -1.0f;
for( uint i = 0u; i < SYS_COUNTOF(s_renderer.burnHoles); ++i )
{
s_renderer.burnHoles[i].size = -1.0f;
}
renderer_setDrawSpeed( 0.5f );
renderer_setPen( Pen_Default );
renderer_setTransform( 0 );
}
int32_t main(int32_t argc, char *argv[]) {
printf("<<watchlist//>>\n");
if( init_sdl2() ) {
return 1;
}
uint32_t width = 1280;
uint32_t height = 720;
SDL_Window* window;
sdl2_window("test-canvas", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, &window);
SDL_GLContext* context;
sdl2_glcontext(3, 2, window, &context);
if( init_shader() ) {
return 1;
}
if( init_canvas() ) {
return 1;
}
printf("sizeof(struct Canvas): %zu\n", sizeof(struct Canvas));
printf("MAX_OGL_PRIMITIVES: %d\n", MAX_OGL_PRIMITIVES);
struct Arcball arcball = {0};
arcball_create(width, height, (Vec4f){1.0,2.0,8.0,1.0}, (Vec4f){0.0,0.0,0.0,1.0}, 0.01, 1000.0, &arcball);
struct Character symbols[256] = {0};
default_font_create(symbols);
struct Shader shader = {0};
shader_create(&shader);
shader_attach(&shader, GL_VERTEX_SHADER, "prefix.vert", 1, "volumetric_lines.vert");
shader_attach(&shader, GL_FRAGMENT_SHADER, "prefix.frag", 1, "volumetric_lines.frag");
shader_make_program(&shader, SHADER_DEFAULT_NAMES, "lines_shader");
struct Font font = {0};
font_create_from_characters(L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789.,:;", 256, symbols, 9, 3, global_default_font_palette, &font);
struct Canvas text_canvas = {0};
canvas_create("text_canvas", &text_canvas);
canvas_add_attribute(&text_canvas, SHADER_ATTRIBUTE_VERTEX, 3, GL_FLOAT);
canvas_add_attribute(&text_canvas, SHADER_ATTRIBUTE_VERTEX_COLOR, 4, GL_UNSIGNED_BYTE);
canvas_add_attribute(&text_canvas, SHADER_ATTRIBUTE_VERTEX_TEXCOORD, 2, GL_FLOAT);
log_assert( canvas_add_shader(&text_canvas, shader.name, &shader) < MAX_CANVAS_SHADER );
log_assert( canvas_add_font(&text_canvas, "other_font", &font) < MAX_CANVAS_FONTS );
struct GameTime time = {0};
gametime_create(1.0f / 60.0f, &time);
SDL_SetEventFilter(event_filter, NULL);
while (true) {
SDL_Event event;
while( sdl2_poll_event(&event) ) {
if( sdl2_handle_quit(event) ) {
goto done;
}
sdl2_handle_resize(event);
arcball_handle_resize(&arcball, event);
arcball_handle_mouse(&arcball, event);
}
gametime_advance(&time, sdl2_time_delta());
sdl2_debug( SDL_GL_SetSwapInterval(1) );
ogl_debug( glClearDepth(1.0f);
glClearColor(.0f, .0f, .0f, 1.0f);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); );
draw_grid(&text_canvas, 0, (Mat)IDENTITY_MAT, (Color){20, 180, 240, 255}, 0.02f, 12.0f, 12.0f, 12);
draw_basis(&text_canvas, 1, (Mat)IDENTITY_MAT, 0.02f, 1.0f);
Mat text_matrix = {0};
Quat text_rotation = {0};
quat_from_axis_angle((Vec4f){1.0, 0.0, 0.0, 1.0}, PI/2, text_rotation);
mat_rotate(NULL, text_rotation, text_matrix);
mat_translate(text_matrix, (Vec4f){-3.5, -1.0, 6.25, 1.0}, text_matrix);
Vec4f world_cursor = {0,0,0,1};
text_put_world(&text_canvas, 0, world_cursor, text_matrix, (Color){0, 255, 255, 255}, 0.5f, "other_font", L"Dies ist ein Test\n");
text_put_world(&text_canvas, 0, world_cursor, text_matrix, (Color){255, 255, 0, 255}, 0.5f, "other_font", L"fuer einen Text");
gametime_integrate(&time);
Vec4f screen_cursor = {0,0,0,1};
double fps = text_show_fps(&global_dynamic_canvas, 0, screen_cursor, 0, 0, (Color){255, 255, 255, 255}, 20.0f, "default_font", time.frame);
/* text_show_time(&text_canvas, screen_cursor, 0, "default_font", 20.0, (Color){255, 255, 255, 255}, 0, 0, time.t); */
/* text_put_screen(&text_canvas, screen_cursor, 0, "default_font", 20.0, (Color){255, 210, 255, 255}, 0, 0, L"LALA singt das Meerschweinchen\n"); */
/* text_put_screen(&text_canvas, screen_cursor, 0, "default_font", 20.0, (Color){0, 210, 255, 255}, 0, 0, L"FICKEN immer und ueberall\n"); */
/* text_put_screen(&text_canvas, screen_cursor, 0, "default_font", 20.0, (Color){20, 210, 110, 255}, 0, 0, L"FUMMELN den ganzen Tag lang\n"); */
/* text_printf(&text_canvas, screen_cursor, 0, "default_font", 20.0, (Color){255, 40, 60, 255}, 0, 0, L"PRINTF %d Luftballons\n", 99); */
canvas_render_layers(&text_canvas, 0, MAX_CANVAS_LAYERS, &arcball.camera, (Mat)IDENTITY_MAT);
canvas_clear(&text_canvas);
canvas_render_layers(&global_dynamic_canvas, 0, MAX_CANVAS_LAYERS, &arcball.camera, (Mat)IDENTITY_MAT);
canvas_clear(&global_dynamic_canvas);
sdl2_debug( SDL_GL_SwapWindow(window) );
}
int32_t main(int32_t argc, char *argv[]) {
printf("<<watchlist//>>\n");
if( init_sdl2() ) {
return 1;
}
int32_t width = 1280;
int32_t height = 720;
SDL_Window* window;
sdl2_window("cute3d: " __FILE__, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, &window);
SDL_GLContext* context;
sdl2_glcontext(3, 2, window, &context);
if( init_shader() ) {
return 1;
}
if( init_vbo() ) {
return 1;
}
if( init_canvas(1280,720) ) {
return 1;
}
canvas_create("global_dynamic_canvas", &global_dynamic_canvas);
canvas_create("global_static_canvas", &global_static_canvas);
struct Vbo vbo = {0};
vbo_create(&vbo);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX, 3, GL_FLOAT, GL_STATIC_DRAW);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX_NORMAL, 3, GL_FLOAT, GL_STATIC_DRAW);
vbo_add_buffer(&vbo, SHADER_ATTRIBUTE_VERTEX_COLOR, 4, GL_UNSIGNED_BYTE, GL_STATIC_DRAW);
struct Ibo ibo = {0};
ibo_create(GL_TRIANGLES, GL_UNSIGNED_INT, GL_STATIC_DRAW, &ibo);
struct CollisionEntity entity_a = {0};
entity_create("red", (Color){ 255, 0, 0, 255 }, &vbo, &ibo, &entity_a);
/* quat_mul_axis_angle(entity_a.pivot.orientation, (Vec4f)UP_AXIS, PI/4, entity_a.pivot.orientation); */
/* quat_mul_axis_angle(entity_a.pivot.orientation, (Vec4f)RIGHT_AXIS, PI/2 + 0.2, entity_a.pivot.orientation); */
vec_add(entity_a.pivot.position, (Vec4f){0.2, 0.15, 0.8, 1.0}, entity_a.pivot.position);
struct CollisionEntity entity_b = {0};
entity_create("green", (Color){ 0, 255, 0, 255 }, &vbo, &ibo, &entity_b);
quat_mul_axis_angle(entity_b.pivot.orientation, (Vec4f)RIGHT_AXIS, PI/4 - 0.2, entity_b.pivot.orientation);
quat_mul_axis_angle(entity_b.pivot.orientation, (Vec4f)UP_AXIS, PI/2 + 0.0, entity_b.pivot.orientation);
struct Shader flat_shader = {0};
shader_create(&flat_shader);
shader_attach(&flat_shader, GL_VERTEX_SHADER, "prefix.vert", 1, "flat_shading.vert");
shader_attach(&flat_shader, GL_FRAGMENT_SHADER, "prefix.frag", 1, "flat_shading.frag");
shader_make_program(&flat_shader, SHADER_DEFAULT_NAMES, "flat_shader");
Vec4f light_direction = { 0.2, -0.5, -1.0 };
shader_set_uniform_3f(&flat_shader, flat_shader.program, SHADER_UNIFORM_LIGHT_DIRECTION, 3, GL_FLOAT, light_direction);
Color ambiance = { 65, 25, 50, 255 };
shader_set_uniform_4f(&flat_shader, flat_shader.program, SHADER_UNIFORM_AMBIENT_LIGHT, 4, GL_UNSIGNED_BYTE, ambiance);
struct Arcball arcball = {0};
arcball_create(width, height, (Vec4f){5.0, 3.0, 5.0, 1.0}, (Vec4f){0.0, 0.0, 0.0, 1.0}, 1.0, 1000.0, &arcball);
size_t num_entities = 2;
struct PickingSphere* picking_spheres[2];
picking_spheres[0] = &entity_a.picking_sphere;
picking_spheres[1] = &entity_b.picking_sphere;
struct CollisionEntity* picking_entities[2];
picking_entities[0] = &entity_a;
picking_entities[1] = &entity_b;
struct GameTime time = {0};
gametime_create(1.0f / 60.0f, &time);
draw_grid(&global_static_canvas, 0, (Mat)IDENTITY_MAT, (Color){127, 127, 127, 127}, 0.01f, 12.0f, 12.0f, 12);
while (true) {
SDL_Event event;
while( sdl2_poll_event(&event) ) {
if( sdl2_handle_quit(event) ) {
goto done;
}
sdl2_handle_resize(event);
if( picking_sphere_drag_event(&arcball.camera, num_entities, picking_spheres, event) ) {
struct CollisionEntity* selected_entity = NULL;
float nearest = -FLT_MIN;
for( size_t i = 0; i < num_entities; i++ ) {
if( picking_spheres[i]->picked && ( picking_spheres[i]->front < nearest || nearest < 0.0f ) ) {
nearest = picking_spheres[i]->front;
selected_entity = picking_entities[i];
}
}
static int32_t last_x = -1;
static int32_t last_y = -1;
if( selected_entity != NULL ) {
if( last_x > -1 && last_y > -1 ) {
float distance = selected_entity->picking_sphere.front;
Vec4f a = {0};
camera_ray(&arcball.camera, CAMERA_PERSPECTIVE, last_x, last_y, a);
vec_mul1f(a, distance, a);
Vec4f b = {0};
camera_ray(&arcball.camera, CAMERA_PERSPECTIVE, event.motion.x, event.motion.y, b);
vec_mul1f(b, distance, b);
Vec4f move = {0};
vec_sub(b, a, move);
float length = vec_length(move);
move[1] = 0.0f;
vec_normalize(move, move);
vec_mul1f(move, length, move);
vec_add(selected_entity->pivot.position, move, selected_entity->pivot.position);
}
last_x = event.motion.x;
last_y = event.motion.y;
}
if( event.type == SDL_MOUSEBUTTONUP ) {
last_x = -1;
last_y = -1;
}
} else {
arcball_handle_resize(&arcball, event);
arcball_handle_mouse(&arcball, event);
}
}
sdl2_gl_set_swap_interval(0);
gametime_advance(&time, sdl2_time_delta());
ogl_debug( glClearDepth(1.0f);
glClearColor(.0f, .0f, .0f, 1.0f);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); );
Mat projection_mat = {0};
Mat view_mat = {0};
camera_matrices(&arcball.camera, CAMERA_PERSPECTIVE, projection_mat, view_mat);
Mat identity = {0};
mat_identity(identity);
Mat transform_a = {0};
pivot_world_transform(&entity_a.pivot, transform_a);
//vbo_mesh_render(&entity_a.vbo_mesh, &flat_shader, &arcball.camera, transform_a);
draw_halfedgemesh_wire(&global_dynamic_canvas, 0, transform_a, (Color){255, 0, 0, 255}, 0.02f, &entity_a.hemesh);
Mat transform_b = {0};
pivot_world_transform(&entity_b.pivot, transform_b);
//vbo_mesh_render(&entity_b.vbo_mesh, &flat_shader, &arcball.camera, transform_b);
draw_halfedgemesh_wire(&global_dynamic_canvas, 0, transform_b, (Color){0, 255, 0, 255}, 0.02f, &entity_b.hemesh);
Mat between_transform = {0};
pivot_between_transform(&entity_a.pivot, &entity_b.pivot, between_transform);
Vec3f foo = {0};
mat_mul_vec(between_transform, entity_a.hemesh.vertices.array[0].position, foo);
struct CollisionConvexConvex collision = {0};
struct CollisionParameter collision_parameter = {
.face_tolerance = 0.9,
.edge_tolerance = 0.95,
.absolute_tolerance = 0.025
};
collision_create_convex_convex(&entity_a.hemesh, &entity_a.pivot,
&entity_b.hemesh, &entity_b.pivot,
collision_parameter,
&collision);
if( collision_test_convex_convex(&collision) ) {
collision_contact_convex_convex(&collision);
//printf("//collision: %d\n", collision_counter);
const struct Contacts* contacts = &collision.contacts;
VecP* m = contacts->points[contacts->num_contacts-1];
for( int32_t i = 0; i < contacts->num_contacts; i++ ) {
VecP* n = contacts->points[i];
draw_line(&global_dynamic_canvas, 0, transform_b, (Color){255, 255, 255, 255}, 0.08f, m, n);
m = n;
}
}
gametime_integrate(&time);
Vec4f screen_cursor = {0,0,0,1};
text_show_fps(&global_dynamic_canvas, 0, screen_cursor, 0, 0, (Color){255, 255, 255, 255}, 20.0, "default_font", time.frame);
canvas_render_layers(&global_static_canvas, 0, 0, &arcball.camera, (Mat)IDENTITY_MAT);
canvas_render_layers(&global_dynamic_canvas, 0, 0, &arcball.camera, (Mat)IDENTITY_MAT);
canvas_clear(&global_dynamic_canvas);
sdl2_gl_swap_window(window);
}
done:
SDL_Quit();
printf("done\n");
return 0;
}
