sakrist

Here I will list my components, software setup and some steps that I did.

sakrist

//
//  TextureResource+extension.swift
//
//  Created by Volodymyr Boichentsov on 24/03/2023.
//

import Foundation
import Metal
import MetalKit
import RealityKit

sakrist

#!/bin/bash

#===============================================================================
#  Filename:  build_gmp.sh
#  Created by Volodymyr Boichentsov on 18/09/2015.
#  Copyright © 2015 3D4Medical. All rights reserved.
#  Property of 3D4Medical.
#===============================================================================

#-emit-obj -fembed-bitcode -disable-llvm-optzns -O3

sakrist

# Builds a Libpng framework for the iPhone and the iPhone Simulator.
# Creates a set of universal libraries that can be used on an iPhone and in the
# iPhone simulator. Then creates a pseudo-framework to make using libpng in Xcode
# less painful.
#
# To configure the script, define:
#    IPHONE_SDKVERSION: iPhone SDK version (e.g. 8.1)
#
# Then go get the source tar.bz of the libpng you want to build, shove it in the
# same directory as this script, and run "./libpng.sh". 

sakrist

typedef struct FontHeader {
    int32_t fVersion;
    uint16_t fNumTables;
    uint16_t fSearchRange;
    uint16_t fEntrySelector;
    uint16_t fRangeShift;
}FontHeader;

typedef struct TableEntry {
    uint32_t fTag;

sakrist

- (UIImage*) takePicture {
    int s = 1;
    UIScreen* screen = [UIScreen mainScreen];
    if ([screen respondsToSelector:@selector(scale)]) {
        s = (int) [screen scale];
    }
    
    GLint viewport[4];
    glGetIntegerv(GL_VIEWPORT, viewport);

sakrist

// warping hexagons, WIP. @psonice_cw
// I'm sure there's a less fugly way of making a hexagonal grid, but hey :)

//  Maybe - Try this...

// Simplify!

#ifdef GL_ES
precision mediump float;
#endif

sakrist

Objective-C APIs can now express the “nullability” of parameters, return types, properties, variables, etc. For example, here is the expression of nullability for several UITableView APIs:

-(void)registerNib:(nonnull UINib *)nib forCellReuseIdentifier:(nonnull NSString *)identifier;
-(nullable UITableViewCell *)cellForRowAtIndexPath:(nonnull NSIndexPath)indexPath;
@property (nonatomic, readwrite, retain, nullable) UIView *backgroundView;

The nullability qualifiers affect the optionality of the Objective-C APIs when in Swift. Instead of being imported as implicitly-unwrapped optionals (e.g., UINib!), nonnull-qualified types are imported as non-optional (e.g., UINib) and nullable-qualified types are imported as optional (e.g., UITableViewCell?), so the above APIs will be seen in Swift as:

func registerNib(nib: UINib, forCellReuseIdentifier identifier: String)

sakrist

float FXAA_SPAN_MAX = 8.0;
float FXAA_REDUCE_MUL = 1.0/8.0;
float FXAA_REDUCE_MIN = 1.0/128.0;

vec3 rgbNW=texture2D(buf0,texCoords+(vec2(-1.0,-1.0)/frameBufSize)).xyz;
vec3 rgbNE=texture2D(buf0,texCoords+(vec2(1.0,-1.0)/frameBufSize)).xyz;
vec3 rgbSW=texture2D(buf0,texCoords+(vec2(-1.0,1.0)/frameBufSize)).xyz;
vec3 rgbSE=texture2D(buf0,texCoords+(vec2(1.0,1.0)/frameBufSize)).xyz;
vec3 rgbM=texture2D(buf0,texCoords).xyz;

sakrist

in vec2 v_texcoord; // texture coords
in vec3 v_normal;   // normal
in vec3 v_binormal; // binormal (for TBN basis calc)
in vec3 v_pos;      // pixel view space position

out vec4 color;

layout(std140) uniform Transforms
{
    mat4x4 world_matrix;  // object's world position