reactor
/
2021-32-bit-holiday-jam
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Lighting is decent enough

main
_ 2020-01-13 04:07:56 +00:00
parent aa36fddb09
commit b82b39c8d2
2 changed files with 19 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
pumpking.iqm Normal file
View File

Binary file not shown.

45
src/main.rs
View File

@ -292,8 +292,7 @@ const VERT_SHADER_SRC: &str =
#define mediump
#define highp
#line 0
uniform highp mat4 uni_model;
uniform highp mat4 uni_viewproj;
uniform highp mat4 uni_mvp;
attribute highp vec4 attr_pos;
attribute mediump vec2 attr_uv;
@ -311,9 +310,7 @@ void main (void) {
//vary_color.xyz = attr_normal;
vary_normal = attr_normal;
vec4 world_pos = uni_model * attr_pos;
gl_Position = uni_viewproj * world_pos;
gl_Position = uni_mvp * attr_pos;
}";
const FRAG_SHADER_SRC: &str =
@ -324,7 +321,7 @@ const FRAG_SHADER_SRC: &str =
#line 0
//uniform lowp sampler2D uni_texture;
uniform lowp vec3 uni_albedo;
uniform lowp vec4 uni_object_space_light;
uniform lowp vec3 uni_object_space_light;
//varying lowp vec4 vary_color;
varying lowp vec3 vary_normal;
@ -335,7 +332,7 @@ void main (void) {
lowp vec3 normal = normalize (vary_normal);
//lowp vec3 albedo = pow (vec3 (255.0 / 255.0, 154.0 / 255.0, 0.0 / 255.0), vec3 (2.0));
lowp float diffuse_factor = dot (normal, uni_object_space_light.xyz);
lowp float diffuse_factor = dot (normal, uni_object_space_light);
lowp vec3 sun = max (diffuse_factor, 0.0) * vec3 (0.95, 0.9, 0.85);
lowp vec3 sky = (diffuse_factor * 0.45 + 0.55) * vec3 (0.05, 0.1, 0.15);
lowp vec3 diffuse_color = uni_albedo * (sun + sky);
@ -532,8 +529,7 @@ fn main () {
let shader_program = ShaderProgram::new (&vert_shader, &frag_shader).unwrap ();
let unis: HashMap <_, _> = vec! [
"model",
"viewproj",
"mvp",
"object_space_light",
"albedo",
].iter ()
@ -576,14 +572,6 @@ fn main () {
let model_data = load_small_file ("pumpking.iqm");
let model = IqmModel::from_slice (&model_data [..]);
let id_mat = Mat4::identity ();
let view_mat: Vec <f32> = vec! [
0.3125, 0.0, 0.0, 0.0,
0.0, 0.5, 0.0, 0.0,
0.0, 0.0, 0.3125, 0.0,
0.0, 0.0, 0.0, 1.0,
];
const FALSE_U8: u8 = 0;
unsafe {
@ -593,8 +581,6 @@ fn main () {
let num_coords = 3;
let stride = 4 * num_coords;
gl::UniformMatrix4fv (unis ["viewproj"], 1, FALSE_U8, &view_mat [0]);
}
let mut last_frame_time = Instant::now ();
@ -640,15 +626,22 @@ 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 () * 30.0f32.to_radians () - 120.0f32.to_radians ();
let latitude = (frame as f32 / 5.0).to_radians ().sin () * -40.0f32.to_radians () - 75.0f32.to_radians ();
let model_mat =
Mat4::from_rotation_x (latitude) *
Mat4::from_rotation_z (longitude) *
Mat4::from_translation (Vec3::from ((0.0, 0.0, -2.7 * 0.5)))
;
let light = Vec4::from ((0.0, 0.0, 0.0, 1.0));
let object_space_light = model_mat.inverse () * light;
let mvp_mat =
Mat4::perspective_rh_gl (30.0f32.to_radians (), 1280.0 / 720.0, 0.5, 500.0) *
Mat4::from_translation (Vec3::from ((0.0, 0.0, -8.0))) *
Mat4::from_rotation_x (latitude) *
model_mat
;
let light = Vec3::from ((2.0, 0.0, 5.0)).normalize ();
let object_space_light = model_mat.inverse () * Vec4::from ((light.x (), light.y (), light.z (), 0.0));
let orange = Vec3::from ((255.0 / 255.0, 154.0 / 255.0, 0.0 / 255.0));
let green = Vec3::from ((14.0 / 255.0, 127.0 / 255.0, 24.0 / 255.0));
@ -657,12 +650,12 @@ fn main () {
let green = green * green;
unsafe {
gl::ClearColor (1.0f32, 0.0f32, 1.0f32, 1.0f32);
gl::ClearColor (1.0f32, 1.0f32, 1.0f32, 1.0f32);
gl::Clear (gl::COLOR_BUFFER_BIT | gl::DEPTH_BUFFER_BIT);
gl::Disable (gl::CULL_FACE);
gl::UniformMatrix4fv (unis ["model"], 1, FALSE_U8, &model_mat as *const Mat4 as *const f32);
gl::Uniform4fv (unis ["object_space_light"], 1, &object_space_light as *const Vec4 as *const f32);
gl::UniformMatrix4fv (unis ["mvp"], 1, FALSE_U8, &mvp_mat as *const Mat4 as *const f32);
gl::Uniform3fv (unis ["object_space_light"], 1, &object_space_light as *const Vec4 as *const f32);
gl::Uniform3fv (unis ["albedo"], 1, &orange as *const Vec3 as *const f32);