void draw()
{
Matrix4 view;
Matrix4 projection;
parg_zcam_matrices(&projection, &view);
Matrix4 model = M4MakeIdentity();
Matrix4 modelview = M4Mul(view, model);
Matrix4 mvp = M4Mul(projection, modelview);
parg_draw_clear();
parg_shader_bind(P_SIMPLE);
parg_uniform_matrix4f(U_MVP, &mvp);
parg_varray_enable(
parg_mesh_coord(trimesh), A_POSITION, 2, PARG_FLOAT, 0, 0);
parg_draw_triangles(0, parg_mesh_ntriangles(trimesh));
}
void draw()
{
Matrix4 view;
Matrix4 projection;
parg_zcam_matrices(&projection, &view);
Matrix4 model = M4MakeIdentity();
Matrix4 modelview = M4Mul(view, model);
Matrix4 mvp = M4Mul(projection, modelview);
parg_draw_clear();
parg_shader_bind(P_SIMPLE);
parg_texture_bind(palmstexture, 0);
parg_uniform_matrix4f(U_MVP, &mvp);
parg_varray_enable(
parg_mesh_coord(rectmesh), A_POSITION, 2, PARG_FLOAT, 0, 0);
parg_varray_enable(parg_mesh_uv(rectmesh), A_TEXCOORD, 2, PARG_FLOAT, 0, 0);
parg_draw_one_quad();
}
void init(float winwidth, float winheight, float pixratio)
{
resolution = pixratio * winwidth;
par_shapes_mesh* shape;
shape = par_shapes_create_cylinder(30, 3);
float axis[3] = {1, 0, 0};
par_shapes_rotate(shape, PARG_PI * 0.5, axis);
cylinder = parg_mesh_from_shape(shape);
par_shapes_free_mesh(shape);
shape = par_shapes_create_plane(3, 3);
par_shapes_scale(shape, 4, 4, 1);
par_shapes_translate(shape, -2, -2, -1);
backdrop = parg_mesh_from_shape(shape);
par_shapes_free_mesh(shape);
kleingeo = parg_mesh_from_asset(M_KLEIN);
parg_mesh_send_to_gpu(kleingeo);
kleintex = parg_texture_from_asset_linear(T_KLEIN);
abstract = parg_texture_from_asset(T_ABSTRACT);
logo = parg_texture_from_asset(T_LOGO);
rust = parg_texture_from_asset(T_RUST);
billboard = parg_mesh_rectangle(1, 1);
reflection = parg_framebuffer_create_empty(
512, 512, PARG_FBO_LINEAR | PARG_FBO_ALPHA | PARG_FBO_DEPTH);
const Vector4 transparent = {0, 0, 0, 0};
parg_state_clearcolor(transparent);
parg_state_depthtest(1);
parg_state_cullfaces(1);
parg_shader_load_from_asset(S_SIMPLE);
const float h = 1.0f;
const float w = h * winwidth / winheight;
const float znear = 4;
const float zfar = 20;
projection = M4MakeFrustum(-w, w, -h, h, znear, zfar);
Point3 eye = {0, 1.8, 5};
Point3 target = {0, 0.7, 0};
Vector3 up = {0, 1, 0};
view = M4MakeLookAt(eye, target, up);
model = M4MakeIdentity();
}
void draw()
{
int mesh = 0, multi = 0, meshcolor = 0;
switch (state) {
case STATE_GRAY_SOURCE:
parg_shader_bind(P_GRAY);
parg_texture_bind(graytex, 0);
parg_uniform1f(U_ZSCALE, 1);
break;
case STATE_COLOR_IH:
mesh = 1;
parg_shader_bind(P_GRAYMESH);
parg_uniform1f(U_ZSCALE, 0.3);
break;
case STATE_COLOR_DHSCSI:
mesh = multi = 1;
parg_shader_bind(P_GRAYMESH);
parg_uniform1f(U_ZSCALE, 0.3);
break;
case STATE_MULTI_RGBA:
case STATE_MULTI_RGB:
case STATE_MULTI_DIAGRAM:
meshcolor = mesh = multi = 1;
parg_shader_bind(P_GRAYMESH);
parg_uniform1f(U_ZSCALE, 0.25);
break;
case STATE_COLOR_DEFAULT:
case STATE_GRAY_DEFAULT:
case STATE_GRAY_SIMPLIFY:
case STATE_GRAY_INVERT:
case STATE_GRAY_HEIGHTS:
mesh = 1;
parg_shader_bind(P_GRAYMESH);
parg_uniform1f(U_ZSCALE, 1);
break;
case STATE_GRAY_MULTI:
mesh = multi = 1;
parg_shader_bind(P_GRAYMESH);
parg_texture_bind(colortex, 0);
parg_uniform1f(U_ZSCALE, 0.3);
break;
case STATE_GRAY_DUAL:
mesh = multi = 1;
parg_shader_bind(P_GRAYMESH);
parg_texture_bind(colortex, 0);
parg_uniform1f(U_ZSCALE, 1);
break;
case STATE_GRAY_DHS:
case STATE_GRAY_DHSC:
mesh = multi = 1;
parg_shader_bind(P_GRAYMESH);
parg_texture_bind(colortex, 0);
parg_uniform1f(U_ZSCALE, 0.5);
break;
case STATE_COLOR_SOURCE:
parg_texture_bind(colortex, 0);
parg_shader_bind(P_COLOR);
parg_uniform1f(U_ZSCALE, 1);
break;
default:
break;
}
if (mesh) {
for (int i = 0; i < sizeof(trimesh) / sizeof(trimesh[0]); i++) {
parg_mesh_free(trimesh[i]);
}
memset(trimesh, 0, sizeof(trimesh));
create_mesh();
}
Matrix4 model;
if (mesh) {
model = M4MakeScale(V3MakeFromElems(20, 20, 10));
model = M4Mul(M4MakeTranslation(V3MakeFromElems(-10, -10, 0)), model);
} else {
model = M4MakeIdentity();
}
Matrix4 modelview = M4Mul(view, model);
Matrix4 mvp = M4Mul(projection, modelview);
parg_uniform_matrix4f(U_MVP, &mvp);
parg_draw_clear();
if (mesh) {
Vector4 colors[3];
colors[0] = (Vector4){0, 0.6, 0.9, 1};
colors[1] = (Vector4){0, 0.9, 0.6, 1};
colors[2] = (Vector4){0.9, 0.6, 0, 1};
Vector4 black = {0, 0, 0, 1.0};
for (int imesh = 0; imesh < nmeshes; imesh++) {
parg_varray_enable(parg_mesh_coord(trimesh[imesh]), A_POSITION, 3,
PARG_FLOAT, 0, 0);
parg_varray_bind(parg_mesh_index(trimesh[imesh]));
if (meshcolor) {
unsigned int b = meshcolors[imesh] & 0xff;
unsigned int g = (meshcolors[imesh] >> 8) & 0xff;
unsigned int r = (meshcolors[imesh] >> 16) & 0xff;
unsigned int a = (meshcolors[imesh] >> 24) & 0xff;
Vector4 color;
color.x = r / 255.0f;
color.y = g / 255.0f;
color.z = b / 255.0f;
color.w = a / 255.0f;
parg_uniform4f(U_COLOR, &color);
} else {
parg_uniform4f(U_COLOR, &colors[imesh]);
}
parg_draw_triangles_u16(0, parg_mesh_ntriangles(trimesh[imesh]));
parg_uniform4f(U_COLOR, &black);
parg_draw_wireframe_triangles_u16(
0, parg_mesh_ntriangles(trimesh[imesh]));
}
} else {
