void
stl_rotate_z(stl_file *stl, float angle)
{
int i;
int j;
for(i = 0; i < stl->stats.number_of_facets; i++)
{
for(j = 0; j < 3; j++)
{
stl_rotate(&stl->facet_start[i].vertex[j].x,
&stl->facet_start[i].vertex[j].y, angle);
}
}
stl_get_size(stl);
calculate_normals(stl);
}
int main(int argc, char *argv[])
{
float min, max;
setlocale(LC_ALL, "C");
process_options(argc, argv);
snis_srand((unsigned int) random_seed);
open_simplex_noise(random_seed, &ctx);
printf("Loading %s\n", heightfile);
sampledata = load_image(heightfile, &samplew, &sampleh, &samplea,
&sample_bytes_per_row);
printf("Loading %s\n", landfile);
land = load_image(landfile, &landw, &landh, &landa, &landbpr);
printf("Loading %s\n", waterfile);
water = load_image(waterfile, &waterw, &waterh, &watera, &waterbpr);
printf("Allocating output images.\n");
allocate_output_images();
printf("Initializing vertices.\n");
initialize_vertices();
find_min_max_height(&min, &max);
add_bumps(initial_bumps);
add_craters(ncraters);
printf("Rendering %d total bumps\n", totalbumps);
render_all_bumps();
render_all_craters(min, max);
find_min_max_height(&min, &max);
printf("min h = %f, max h = %f\n", min, max);
paint_height_maps(min, max);
calculate_normals();
paint_normal_and_height_maps(min, max);
printf("painting terrain colors\n");
paint_terrain_colors(min, max);
printf("Writing color textures\n");
save_output_images();
printf("Writing normal maps\n");
save_normal_maps();
printf("Writing height maps\n");
save_height_maps();
open_simplex_noise_free(ctx);
printf("Done.\n");
return 0;
}
void Cube::internal_buffer_data(Abstract_material_ptr i_material)
{
const GLsizei vertices = 24;
m_triangle_count = 36;
// the 4 vertices of a box
const GLfloat box[vertices][4] =
{
/* front */
{ -m_size, -m_size, m_size, 1.0f },
{ m_size, -m_size, m_size, 1.0f },
{ m_size, m_size, m_size, 1.0f },
{ -m_size, m_size, m_size, 1.0f },
/* left */
{ -m_size, -m_size, -m_size, 1.0f },
{ -m_size, -m_size, m_size, 1.0f },
{ -m_size, m_size, m_size, 1.0f },
{ -m_size, m_size, -m_size, 1.0f },
/* right */
{ m_size, -m_size, m_size, 1.0f },
{ m_size, -m_size, -m_size, 1.0f },
{ m_size, m_size, -m_size, 1.0f },
{ m_size, m_size, m_size, 1.0f },
/* top */
{ -m_size, m_size, m_size, 1.0f },
{ m_size, m_size, m_size, 1.0f },
{ m_size, m_size, -m_size, 1.0f },
{ -m_size, m_size, -m_size, 1.0f },
/* bottom */
{ -m_size, -m_size, -m_size, 1.0f },
{ m_size, -m_size, -m_size, 1.0f },
{ m_size, -m_size, m_size, 1.0f },
{ -m_size, -m_size, m_size, 1.0f },
/* back */
{ m_size, -m_size, -m_size, 1.0f },
{ -m_size, -m_size, -m_size, 1.0f },
{ -m_size, m_size, -m_size, 1.0f },
{ m_size, m_size, -m_size, 1.0f },
};
const GLuint boxindices[36] =
{
/* front */
0, 1, 2,
2, 3, 0,
/* left */
4, 5, 6,
6, 7, 4,
/* right */
8, 9, 10,
10, 11, 8,
/* top */
12, 13, 14,
14, 15, 12,
/* bottom */
16, 17, 18,
18, 19, 16,
/* back */
20, 21, 22,
22, 23, 20,
};
GLfloat normals[vertices][4];
// generate the normals
calculate_normals(&box[0][0], vertices, &boxindices[0], m_triangle_count, &normals[0][0]);
// buffer all data
Shader_program * material_shader = i_material->get_shader();
glBindBuffer(GL_ARRAY_BUFFER, m_vbo_id[to_integral(VBO_type::Position)]);
glBufferData(GL_ARRAY_BUFFER, vertices * 4 * sizeof(GLfloat), box, GL_STATIC_DRAW);
GLint vertex_attrib_location = material_shader->get_attribute_location(in_position);
glEnableVertexAttribArray(vertex_attrib_location);
glVertexAttribPointer(vertex_attrib_location, 4, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ARRAY_BUFFER, m_vbo_id[to_integral(VBO_type::Normal)]);
glBufferData(GL_ARRAY_BUFFER, vertices * 4 * sizeof(GLfloat), normals, GL_STATIC_DRAW);
GLint normals_attrib_location = material_shader->get_attribute_location(in_normal);
glEnableVertexAttribArray(normals_attrib_location);
glVertexAttribPointer(normals_attrib_location, 4, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_vbo_id[to_integral(VBO_type::Index)]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, m_triangle_count * sizeof(GL_UNSIGNED_INT), boxindices, GL_STATIC_DRAW);
// disable pointers & unbind buffers
glDisableVertexAttribArray(vertex_attrib_location);
glDisableVertexAttribArray(normals_attrib_location);
glBindBuffer( GL_ARRAY_BUFFER, 0 );
glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, 0 );
}
int render(GSGLOBAL *gsGlobal)
{
#ifdef TEX_BG
u64 TexCol = GS_SETREG_RGBAQ(0x80,0x80,0x80,0x80,0x00);
GSTEXTURE bigtex;
#endif
#ifdef FHD_BG
GSTEXTURE fhdbg;
#endif
int i;
// Matrices to setup the 3D environment and camera
MATRIX local_world;
MATRIX local_light;
MATRIX world_view;
MATRIX view_screen;
MATRIX local_screen;
VECTOR *temp_normals;
VECTOR *temp_lights;
color_f_t *temp_colours;
vertex_f_t *temp_vertices;
xyz_t *verts;
color_t *colors;
// Allocate calculation space.
temp_normals = (VECTOR *)memalign(128, sizeof(VECTOR) * vertex_count);
temp_lights = (VECTOR *)memalign(128, sizeof(VECTOR) * vertex_count);
temp_colours = (color_f_t *)memalign(128, sizeof(color_f_t) * vertex_count);
temp_vertices = (vertex_f_t *)memalign(128, sizeof(vertex_f_t) * vertex_count);
// Allocate register space.
verts = (xyz_t *)memalign(128, sizeof(xyz_t) * vertex_count);
colors = (color_t *)memalign(128, sizeof(color_t) * vertex_count);
#ifdef TEX_BG
bigtex.Filter = GS_FILTER_LINEAR;
bigtex.Delayed = 0;
gsKit_texture_jpeg(gsGlobal, &bigtex, "host:bigtex.jpg");
#endif
#ifdef FHD_BG
fhdbg.Filter = GS_FILTER_LINEAR;
fhdbg.Delayed = 1;
fhdbg.Vram = GSKIT_ALLOC_ERROR;
gsKit_texture_jpeg(gsGlobal, &fhdbg, "host:fhdbg.jpg");
gsKit_hires_prepare_bg(gsGlobal, &fhdbg);
gsKit_hires_set_bg(gsGlobal, &fhdbg);
#endif
printf("VRAM used: %dKiB\n", gsGlobal->CurrentPointer / 1024);
printf("VRAM free: %dKiB\n", 4096 - (gsGlobal->CurrentPointer / 1024));
// Create the view_screen matrix.
create_view_screen(view_screen, 16.0f/9.0f, -0.20f, 0.20f, -0.20f, 0.20f, 1.00f, 2000.00f);
if (gsGlobal->ZBuffering == GS_SETTING_ON)
gsKit_set_test(gsGlobal, GS_ZTEST_ON);
// A,B,C,D,FIX = 0,1,0,1,0:
// A = 0 = Cs (Color Source)
// B = 1 = Cd (Color Destination)
// C = 0 = As (Alpha Source)
// D = 1 = Cd (Color Destination)
// FIX = not used
//
// Resulting color = (A-B)*C+D = (Cs-Cd)*As+Cd
// This will blend the source over the destination
// Note:
// - Alpha 0x00 = fully transparent
// - Alpha 0x80 = fully visible
gsKit_set_primalpha(gsGlobal, GS_SETREG_ALPHA(0, 1, 0, 1, 128), 0);
gsGlobal->PrimAlphaEnable = GS_SETTING_OFF;
gsGlobal->PrimAAEnable = GS_SETTING_ON;
// The main loop...
for (;;)
{
// Spin the teapot a bit.
object_rotation[1] += 0.005f; while (object_rotation[1] > 3.14f) { object_rotation[1] -= 6.28f; }
// Create the local_world matrix.
create_local_world(local_world, object_position, object_rotation);
// Create the local_light matrix.
create_local_light(local_light, object_rotation);
// Create the world_view matrix.
create_world_view(world_view, camera_position, camera_rotation);
// Create the local_screen matrix.
create_local_screen(local_screen, local_world, world_view, view_screen);
// Calculate the normal values.
calculate_normals(temp_normals, vertex_count, normals, local_light);
// Calculate the lighting values.
calculate_lights(temp_lights, vertex_count, temp_normals, light_direction, light_colour, light_type, light_count);
// Calculate the colour values after lighting.
calculate_colours((VECTOR *)temp_colours, vertex_count, colours, temp_lights);
// Calculate the vertex values.
calculate_vertices((VECTOR *)temp_vertices, vertex_count, vertices, local_screen);
// Convert floating point vertices to fixed point and translate to center of screen.
draw_convert_xyz(verts, 2048, 2048, 16, vertex_count, temp_vertices);
// Convert floating point colours to fixed point.
draw_convert_rgbq(colors, vertex_count, temp_vertices, temp_colours, 0x80);
#ifdef DYNAMIC_DITHERING
// Dithering:
// The standard 4x4 dithering matrix creates static noise to eliminate banding.
// This static noise is a little visible, and can be improved by changing the matrix every frame
// Keep adding 5 to get the most noisy pattern possible:
// 0, 5, 2, 7, 4, 1, 6, 3
for(i = 0; i < 15; i++)
gsGlobal->DitherMatrix[i] = (gsGlobal->DitherMatrix[i] + 5) & 7;
gsKit_set_dither_matrix(gsGlobal);
#endif
#ifdef TEX_BG
if(bigtex.Vram != GSKIT_ALLOC_ERROR) {
gsKit_prim_sprite_texture(gsGlobal, &bigtex,
0.0f, // X1
0.0f, // Y1
0.0f, // U1
0.0f, // V1
gsGlobal->Width, // X2
gsGlobal->Height, // Y2
bigtex.Width, // U2
bigtex.Height, // V2
2,
TexCol);
}
#endif
for (i = 0; i < points_count; i+=3) {
float fX=gsGlobal->Width/2;
float fY=gsGlobal->Height/2;
gsKit_prim_triangle_gouraud_3d(gsGlobal
, (temp_vertices[points[i+0]].x + 1.0f) * fX, (temp_vertices[points[i+0]].y + 1.0f) * fY, verts[points[i+0]].z
, (temp_vertices[points[i+1]].x + 1.0f) * fX, (temp_vertices[points[i+1]].y + 1.0f) * fY, verts[points[i+1]].z
, (temp_vertices[points[i+2]].x + 1.0f) * fX, (temp_vertices[points[i+2]].y + 1.0f) * fY, verts[points[i+2]].z
, colors[points[i+0]].rgbaq, colors[points[i+1]].rgbaq, colors[points[i+2]].rgbaq);
}
#ifdef HIRES_MODE
gsKit_hires_sync(gsGlobal);
gsKit_hires_flip(gsGlobal);
#else
gsKit_queue_exec(gsGlobal);
gsKit_sync_flip(gsGlobal);
#endif
}
free(temp_normals);
free(temp_lights);
free(temp_colours);
free(temp_vertices);
free(verts);
free(colors);
return 0;
}
Model::Model(std::vector<tinyobj::shape_t> shapes, std::vector<tinyobj::material_t> materials, std::vector<Material> materials_ref) :
shapes_(shapes),
materials_(materials),
materials_ref_(materials_ref){
calculate_normals();
}