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2021-32-bit-holiday-jam
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Got the stem

main
_ 2020-01-12 19:10:58 +00:00
parent a1911141e1
commit aa36fddb09
1 changed files with 15 additions and 28 deletions
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43
src/main.rs
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@ -208,6 +208,8 @@ impl <'a> IqmModel <'a> {
meshes
};
//println! ("{:?}", meshes);
let vertexarrays = {
let num: usize = header.fields [iqm_consts::NUM_VERTEXARRAYS].try_into ().unwrap ();
let mut vertexarrays = Vec::with_capacity (num);
@ -239,16 +241,16 @@ impl <'a> IqmModel <'a> {
}
pub fn get_vertex_slice (&self,
mesh_index: usize, vertexarray_index: usize
vertexarray_index: usize
) -> &[u8]
{
let vertexarray = &self.vertexarrays [vertexarray_index];
let bytes_per_float = 4;
let stride = bytes_per_float * vertexarray.va_size;
assert_eq! (stride, 12);
let mesh = &self.meshes [mesh_index];
let offset: usize = (vertexarray.va_offset + stride * mesh.first_vertex).try_into ().unwrap ();
let num_bytes: usize = (stride * mesh.num_vertexes).try_into ().unwrap ();
let offset: usize = (vertexarray.va_offset).try_into ().unwrap ();
let num_bytes: usize = (stride * self.header.fields [iqm_consts::NUM_VERTEXES]).try_into ().unwrap ();
&self.data [offset..offset + num_bytes]
}
@ -548,9 +550,6 @@ fn main () {
})
.collect ();
//println! ("uni_model: {}", unis ["model"]);
//println! ("uni_viewproj: {}", unis ["viewproj"]);
let attrs: HashMap <_, Option <u32>> = vec! [
"pos",
"uv",
@ -574,19 +573,8 @@ fn main () {
})
.collect ();
//println! ("attr_pos: {}", attrs ["pos"]);
let tri_mesh: Vec <f32> = vec! [
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
];
let model_data = load_small_file ("pumpking.iqm");
let model = IqmModel::from_slice (&model_data [..]);
let vertex_slice = model.get_vertex_slice (0, 0);
let normal_slice = model.get_vertex_slice (0, 2);
let index_slice = model.get_index_slice (0);
let id_mat = Mat4::identity ();
let view_mat: Vec <f32> = vec! [
@ -595,7 +583,6 @@ fn main () {
0.0, 0.0, 0.3125, 0.0,
0.0, 0.0, 0.0, 1.0,
];
let indexes: Vec <u16> = vec! [0, 1, 2];
const FALSE_U8: u8 = 0;
@ -653,11 +640,11 @@ fn main () {
window.gl_make_current (&gl_ctx).unwrap ();
let longitude = (frame as f32).to_radians ();
let latitude = (frame as f32 / 5.0).to_radians ().sin () * 45.0f32.to_radians () - 120.0f32.to_radians ();
let latitude = (frame as f32 / 5.0).to_radians ().sin () * 30.0f32.to_radians () - 120.0f32.to_radians ();
let model_mat =
Mat4::from_rotation_x (latitude) *
Mat4::from_rotation_z (longitude) *
Mat4::from_translation (Vec3::from ((0.0, 0.0, -1.0)))
Mat4::from_translation (Vec3::from ((0.0, 0.0, -2.7 * 0.5)))
;
let light = Vec4::from ((0.0, 0.0, 0.0, 1.0));
@ -679,18 +666,18 @@ fn main () {
gl::Uniform3fv (unis ["albedo"], 1, &orange as *const Vec3 as *const f32);
vertex_attrib_pointer (attrs ["pos"], 3, model.get_vertex_slice (0, 0));
vertex_attrib_pointer (attrs ["normal"], 3, model.get_vertex_slice (0, 2));
vertex_attrib_pointer (attrs ["pos"], 3, model.get_vertex_slice (0));
vertex_attrib_pointer (attrs ["normal"], 3, model.get_vertex_slice (2));
gl::DrawElements (gl::TRIANGLES, (model.meshes [0].num_triangles * 3) as i32, gl::UNSIGNED_INT, &index_slice [0] as *const u8 as *const c_void);
gl::DrawElements (gl::TRIANGLES, (model.meshes [0].num_triangles * 3) as i32, gl::UNSIGNED_INT, &model.get_index_slice (0) [0] as *const u8 as *const c_void);
if false {
if true {
gl::Uniform3fv (unis ["albedo"], 1, &green as *const Vec3 as *const f32);
vertex_attrib_pointer (attrs ["pos"], 3, model.get_vertex_slice (1, 0));
vertex_attrib_pointer (attrs ["normal"], 3, model.get_vertex_slice (1, 2));
vertex_attrib_pointer (attrs ["pos"], 3, model.get_vertex_slice (0));
vertex_attrib_pointer (attrs ["normal"], 3, model.get_vertex_slice (2));
gl::DrawElements (gl::TRIANGLES, (model.meshes [1].num_triangles * 3) as i32, gl::UNSIGNED_INT, &index_slice [1] as *const u8 as *const c_void);
gl::DrawElements (gl::TRIANGLES, (model.meshes [1].num_triangles * 3) as i32, gl::UNSIGNED_INT, &model.get_index_slice (1) [0] as *const u8 as *const c_void);
}
}