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Ray-caster: pass colors in through uniforms

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This commit is contained in:
Aaron Fenyes 2024-08-26 13:41:34 -07:00
parent b9370ceb41
commit cbec31f5df
2 changed files with 27 additions and 10 deletions
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14
app-proto/inversive-display/src/inversive.frag
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@ -28,6 +28,7 @@ vecInv sphere(vec3 center, float radius) {
const int SPHERE_MAX = 12;
uniform int sphere_cnt;
uniform vecInv sphere_list[SPHERE_MAX];
uniform vec3 color_list[SPHERE_MAX];
// view
uniform vec2 resolution;
@ -135,6 +136,7 @@ void main() {
// initialize two spheres
vecInv sphere_list_internal [SPHERE_MAX];
vec3 color_list_internal [SPHERE_MAX];
if (use_test_construction) {
/* DEBUG */
// spheres 0 and 1 are identical in the test construction hard-coded
@ -144,15 +146,15 @@ void main() {
sphere_list_internal[0] = sphere(vec3(0.5, 0.5, -5. + ctrl.x), radius.x);
sphere_list_internal[1] = sphere(vec3(-0.5, -0.5, -5. + ctrl.y), radius.y);
sphere_list_internal[2] = sphere(vec3(-0.5, 0.5, -5.), 0.5);
color_list_internal[0] = vec3(1., 0.25, 0.);
color_list_internal[1] = vec3(0., 0.25, 1.);
color_list_internal[2] = vec3(0.25, 0., 1.0);
} else {
for (int i = 0; i < sphere_cnt; ++i) {
sphere_list_internal[i] = sphere_list[i];
color_list_internal[i] = color_list[i];
}
}
vec3 color_list [SPHERE_MAX];
color_list[0] = vec3(1., 0.25, 0.);
color_list[1] = vec3(0., 0.25, 1.);
color_list[2] = vec3(0.25, 0., 1.0);
// cast rays through the spheres
vec2 depth_pairs [SPHERE_MAX];
@ -161,11 +163,11 @@ void main() {
for (int i = 0; i < sphere_cnt; ++i) {
vec2 hit_depths = sphere_cast(sphere_list_internal[i], dir);
if (!isnan(hit_depths[0])) {
frags[frag_cnt] = sphere_shading(sphere_list_internal[i], hit_depths[0] * dir, color_list[i], i);
frags[frag_cnt] = sphere_shading(sphere_list_internal[i], hit_depths[0] * dir, color_list_internal[i], i);
++frag_cnt;
}
if (!isnan(hit_depths[1])) {
frags[frag_cnt] = sphere_shading(sphere_list_internal[i], hit_depths[1] * dir, color_list[i], i);
frags[frag_cnt] = sphere_shading(sphere_list_internal[i], hit_depths[1] * dir, color_list_internal[i], i);
++frag_cnt;
}
}