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#include <celeritas.h>
#include "glfw3.h"
pipeline_handle draw_pipeline;
buf_handle cube_vbuf;
tex_handle texture;
// transformation data
typedef struct MVPData {
mat4 model;
mat4 view;
mat4 projection;
} MVPData;
void draw() {
// prepare data
mat4 translation_matrix = mat4_translation(vec3(0, 0, -1));
f32 angle_degrees = glfwGetTime() / 2.0 * 45.0;
f32 angle = angle_degrees * PI / 180.0;
mat4 rotation_matrix = mat4_rotation(quat_from_axis_angle(VEC3_Y, angle, true));
render_pass_desc d = {};
gpu_encoder* enc = ral_render_encoder(d);
ral_encode_bind_pipeline(enc, draw_pipeline);
ral_encode_set_vertex_buf(enc, cube_vbuf);
ral_encode_set_texture(enc, texture, 0);
ral_encode_draw_tris(enc, 0, 36);
ral_encoder_finish_and_submit(enc);
}
int main() {
core_bringup("Celeritas Example: Triangle", NULL);
// create rendering pipeline
gfx_pipeline_desc pipeline_desc = {
.label = "Textured cube pipeline",
.vertex_desc = static_3d_vertex_format(),
.vertex = {
.source = NULL,
.is_spirv = false,
.entry_point = "cubeVertexShader",
.stage = STAGE_VERTEX,
},
.fragment = {
.source = NULL,
.is_spirv = false,
.entry_point = "fragmentShader",
.stage = STAGE_FRAGMENT,
},
};
draw_pipeline = ral_gfx_pipeline_create(pipeline_desc);
// create the cube geometry
geometry cube = geo_cuboid(1.0, 1.0, 1.0);
// upload vertex data to the gpu
cube_vbuf = ral_buffer_create(64 * 36, cube.vertex_data);
while (!app_should_exit()) {
glfwPollEvents();
ral_frame_start();
ral_frame_draw(&draw);
ral_frame_end();
}
return 0;
}
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