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This commit is contained in:
Zack Buhman 2025-04-23 17:12:04 -05:00
parent 2a4650de4d
commit 4ff6a6de18
2 changed files with 225 additions and 0 deletions
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28
example/q3bsp.cpp
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@ -63,6 +63,9 @@
#include "pk/models/mapobjects/gratelamp/gratetorch2.data.h"
#include "pk/models/mapobjects/gratelamp/gratetorch2b.data.h"
#include "model/model.h"
#include "model/icosphere/model.h"
#include "font/font_bitmap.hpp"
#include "font/verite_8x16/verite_8x16.data.h"
#include "palette.hpp"
@ -420,6 +423,31 @@ void transfer_faces(uint8_t * buf, q3bsp_header_t * header, ta_parameter_writer&
}
}
void transfer_icosphere(ta_parameter_writer& writer, mat4x4& screen_trans)
{
const struct model * model = &icosphere_model;
struct object * object = model->object[0];
float s = 10;
mat4x4 scale = {
s, 0, 0, 0,
0, s, 0, 0,
0, 0, s, 0,
0, 0, 0, 1
};
mat4x4 trans = screen_trans * scale;
for (int i = 0; i < object->triangle_count; i++) {
const union triangle * tri = &object->triangle[i];
vec3 a = trans * position[tri->v[0].position];
vec3 b = trans * position[tri->v[1].position];
vec3 c = trans * position[tri->v[2].position];
if (a.z < 0 && b.z < 0 && c.z < 0) return;
}
}
static inline void render_quad(ta_parameter_writer& writer,
vec3 ap,
vec3 bp,

197
model/icosphere/model.h Normal file
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@ -0,0 +1,197 @@
#pragma once
#include "../model.h"
const vertex_position icosphere_position[] = {
{0.000000f, -1.000000f, 0.000000f},
{0.723600f, -0.447215f, 0.525720f},
{-0.276385f, -0.447215f, 0.850640f},
{-0.894425f, -0.447215f, 0.000000f},
{-0.276385f, -0.447215f, -0.850640f},
{0.723600f, -0.447215f, -0.525720f},
{0.276385f, 0.447215f, 0.850640f},
{-0.723600f, 0.447215f, 0.525720f},
{-0.723600f, 0.447215f, -0.525720f},
{0.276385f, 0.447215f, -0.850640f},
{0.894425f, 0.447215f, 0.000000f},
{0.000000f, 1.000000f, 0.000000f},
};
const vertex_texture icosphere_texture[] = {
{0.181819f, 0.000000f},
{0.272728f, 0.157461f},
{0.090910f, 0.157461f},
{0.363637f, 0.000000f},
{0.454546f, 0.157461f},
{0.909091f, 0.000000f},
{1.000000f, 0.157461f},
{0.818182f, 0.157461f},
{0.727273f, 0.000000f},
{0.636364f, 0.157461f},
{0.545455f, 0.000000f},
{0.363637f, 0.314921f},
{0.181819f, 0.314921f},
{0.909091f, 0.314921f},
{0.727273f, 0.314921f},
{0.545455f, 0.314921f},
{0.000000f, 0.314921f},
{0.272728f, 0.472382f},
{0.090910f, 0.472382f},
{0.818182f, 0.472382f},
{0.636364f, 0.472382f},
{0.454546f, 0.472382f},
};
const vertex_normal icosphere_normal[] = {
{0.1876f, -0.7947f, 0.5774f},
{0.6071f, -0.7947f, -0.0000f},
{-0.4911f, -0.7947f, 0.3568f},
{-0.4911f, -0.7947f, -0.3568f},
{0.1876f, -0.7947f, -0.5774f},
{0.9822f, -0.1876f, -0.0000f},
{0.3035f, -0.1876f, 0.9342f},
{-0.7946f, -0.1876f, 0.5774f},
{-0.7946f, -0.1876f, -0.5774f},
{0.3035f, -0.1876f, -0.9342f},
{0.7946f, 0.1876f, 0.5774f},
{-0.3035f, 0.1876f, 0.9342f},
{-0.9822f, 0.1876f, -0.0000f},
{-0.3035f, 0.1876f, -0.9342f},
{0.7946f, 0.1876f, -0.5774f},
{0.4911f, 0.7947f, 0.3568f},
{-0.1876f, 0.7947f, 0.5774f},
{-0.6071f, 0.7947f, -0.0000f},
{-0.1876f, 0.7947f, -0.5774f},
{0.4911f, 0.7947f, -0.3568f},
};
const union triangle icosphere_Icosphere_triangle[] = {
{ .v = {
{0, 0, 0},
{1, 1, 0},
{2, 2, 0},
}},
{ .v = {
{1, 1, 1},
{0, 3, 1},
{5, 4, 1},
}},
{ .v = {
{0, 5, 2},
{2, 6, 2},
{3, 7, 2},
}},
{ .v = {
{0, 8, 3},
{3, 7, 3},
{4, 9, 3},
}},
{ .v = {
{0, 10, 4},
{4, 9, 4},
{5, 4, 4},
}},
{ .v = {
{1, 1, 5},
{5, 4, 5},
{10, 11, 5},
}},
{ .v = {
{2, 2, 6},
{1, 1, 6},
{6, 12, 6},
}},
{ .v = {
{3, 7, 7},
{2, 6, 7},
{7, 13, 7},
}},
{ .v = {
{4, 9, 8},
{3, 7, 8},
{8, 14, 8},
}},
{ .v = {
{5, 4, 9},
{4, 9, 9},
{9, 15, 9},
}},
{ .v = {
{1, 1, 10},
{10, 11, 10},
{6, 12, 10},
}},
{ .v = {
{2, 2, 11},
{6, 12, 11},
{7, 16, 11},
}},
{ .v = {
{3, 7, 12},
{7, 13, 12},
{8, 14, 12},
}},
{ .v = {
{4, 9, 13},
{8, 14, 13},
{9, 15, 13},
}},
{ .v = {
{5, 4, 14},
{9, 15, 14},
{10, 11, 14},
}},
{ .v = {
{6, 12, 15},
{10, 11, 15},
{11, 17, 15},
}},
{ .v = {
{7, 16, 16},
{6, 12, 16},
{11, 18, 16},
}},
{ .v = {
{8, 14, 17},
{7, 13, 17},
{11, 19, 17},
}},
{ .v = {
{9, 15, 18},
{8, 14, 18},
{11, 20, 18},
}},
{ .v = {
{10, 11, 19},
{9, 15, 19},
{11, 21, 19},
}},
};
const union quadrilateral icosphere_Icosphere_quadrilateral[] = {
};
const union line icosphere_Icosphere_line[] = {
};
const struct object icosphere_Icosphere = {
.triangle = &icosphere_Icosphere_triangle[0],
.quadrilateral = &icosphere_Icosphere_quadrilateral[0],
.line = &icosphere_Icosphere_line[0],
.triangle_count = 20,
.quadrilateral_count = 0,
.line_count = 0,
.material = 0,
};
const struct object * icosphere_object[] = {
&icosphere_Icosphere,
};
const struct model icosphere_model = {
.position = icosphere_position,
.texture = icosphere_texture,
.normal = icosphere_normal,
.object = icosphere_object,
.object_count = 1
};