Work

build.sh

@@ -4,5 +4,5 @@ cd src/shaders/
 ./compile_shaders.sh
 cd ..
 cd ..
-jai-linux -x64 first.jai
+jai -x64 first.jai
 ./first

src/arbtri.jai

@@ -61,21 +61,22 @@ arb_tri_add :: (tri: Arb_Tri) {
     array_add(*arbTriState.trilist, tri);
 }
 
+transform_to_screen_x :: (coord: float) -> float {
+    w, h := get_window_size();
+    return (coord / cast(float) w) * 2.0 - 1.0;
+}
+
+transform_to_screen_y :: (coord: float) -> float {
+    w, h := get_window_size();
+    return (coord / cast(float) h) * 2.0 - 1.0;
+}
+
 arb_tri_flush :: () {
     if !arbTriState.active {
         return;
     }
 
 
-    transform_to_screen_x :: (coord: float) -> float {
-        w, h := get_window_size();
-        return (coord / cast(float) w) * 2.0 - 1.0;
-    }
-
-    transform_to_screen_y :: (coord: float) -> float {
-        w, h := get_window_size();
-        return (coord / cast(float) h) * 2.0 - 1.0;
-    }
 
     arbTriState.active = false;    
 

src/editor/iprof.jai

@@ -69,6 +69,8 @@ init_profiler :: () {
 	iprof_conf.text_width = text_width;
 	iprof_conf.draw_rectangle = draw_rectangle_prof;
 	iprof_conf.draw_line = draw_line;
+	iprof_conf.graph_begin = graph_begin;
+	iprof_conf.graph_end = graph_end;
 }
 
 draw_profiler :: () {

src/editor/trile_editor.jai

@@ -240,7 +240,12 @@ draw_trile :: () {
     mvp := create_viewproj(*cam);
     vs_params : Vs_Params;
     vs_params.mvp = mvp.floats;
+    vs_params.camera = cam.position.component;
 
+    world_conf : Trixel_World_Config;
+    wc : *World_Config = *(World_Config.{});
+    world_config_to_shader_type(wc, *world_conf);
+    
     trixels : [4096]Position_Color;
 
     min_distance     : float = 999.0;
@@ -272,8 +277,6 @@ draw_trile :: () {
         for y: 0..15 {
             for z: 0..15 {
                 if current_trile.trixels[x][y][z].empty then continue;
-                hit := does_ray_hit_cube(ray, .{ .{x * TRIXEL_SIZE, y * TRIXEL_SIZE, z * TRIXEL_SIZE}, .{TRIXEL_SIZE, TRIXEL_SIZE, TRIXEL_SIZE}});
-
 
                 trixels[trixel_count].pos.x = x * (1.0 / 16.0) + TRIXEL_SIZE_HALF;
                 trixels[trixel_count].pos.y = y * (1.0 / 16.0) + TRIXEL_SIZE_HALF;
@@ -287,7 +290,7 @@ draw_trile :: () {
                     trixel_color = .{1.0, 0.0, 0.0};        
                 }
                 
-                trixels[trixel_count].col = .{trixel_color.x, trixel_color.y, trixel_color.z, 1.0};
+                trixels[trixel_count].col = .{trixel_color.x, trixel_color.y, trixel_color.z, material_encode_to_float(current_trile.trixels[x][y][z].material)};
                 trixel_count += 1;
             }
         }
@@ -301,6 +304,7 @@ draw_trile :: () {
     sg_apply_pipeline(gPipelines.trixel.pipeline);
     sg_apply_bindings(*gPipelines.trixel.bind);
     sg_apply_uniforms(UB_vs_params, *(sg_range.{ ptr = *vs_params, size = size_of(type_of(vs_params)) }));
+    sg_apply_uniforms(UB_trixel_world_config, *(sg_range.{ptr = *world_conf, size = size_of(type_of(world_conf))}));
     sg_draw(0, 36, trixel_count);
 }
 

src/load.jai

@@ -1,15 +1,14 @@
 MAX_FILE_SIZE :: 200_000;
 buf : [MAX_FILE_SIZE]u8;
 
-mandatory_done            : bool = false;
+mandatory_loads_left      : s32  = 0;
 init_after_mandatory_done : bool = false;
 
 mandatory_loads_done :: () -> bool {
-    return mandatory_done;
+    return mandatory_loads_left <= 0;
 }
 
 init_font_loads :: () {
-    print("SENDING LOAD!!!!\n");
     sfetch_send(*(sfetch_request_t.{
         path = "./resources/DroidSerif-Regular.ttf".data,
         callback = fontcb,
@@ -22,7 +21,6 @@ init_font_loads :: () {
 
 fontcb :: (res: *sfetch_response_t) #c_call {
     push_context,defer_pop default_context;
-    print("RDY! Finished? % Fetched? % \n", res.fetched, res.finished);
     state.font_default.fons_font = fonsAddFontMem(state.fons, "sans", res.data.ptr, xx res.data.size, 0);
     ui_init_font_fields(*state.font_default);
     mandatory_done = true;

src/main.jai

@@ -1,4 +1,4 @@
-#import "Basic";
+#import "Basic"()(MEMORY_DEBUGGER=true);
 #import "Math";
 #import "Input";
 #import "Hash_Table";
@@ -131,7 +131,7 @@ frame :: () {
     input_per_frame_event_and_flag_update();
 
 
-    memory_visualizer_per_frame_update();
+    // memory_visualizer_per_frame_update();
 
     profiler_update();
     reset_temporary_storage();

src/shaders/shader_trixel.glsl

@@ -7,12 +7,13 @@ in vec4 inst_col;
 
 layout(binding=0) uniform vs_params {
     mat4 mvp;
+    vec3 camera;
 };
 
-
 out vec4 color;
 out vec4 fnormal;
 out vec4 pos;
+out vec3 cam;
 
 void main() {
     vec3 instancepos = inst.xyz;
@@ -20,30 +21,107 @@ void main() {
     fnormal = normal;
     color = inst_col;
     pos = gl_Position;
+    cam = camera;
 }
 @end
 
 @fs fs_trixel
+
+layout(binding=1) uniform trixel_world_config {
+    vec3 skyBase;
+    vec3 skyTop;
+    vec3 sunDisk;
+    vec3 horizonHalo;
+    vec3 sunHalo;
+    vec3 sunLightColor;
+    vec3 sunPosition;
+    float sunIntensity;
+
+    int hasClouds;
+
+    int hasPlane;
+    float planeHeight;
+    int planeType;
+
+    float time;
+};
+
 in vec4 color;
 in vec4 fnormal;
 in vec4 pos;
+in vec3 cam;
 out vec4 frag_color;
 
+const float PI = 3.1412854;
+
+
+float DistributionGGX(vec3 N, vec3 H, float roughness) {
+    float a      = roughness*roughness;
+    float a2     = a*a;
+    float NdotH  = max(dot(N, H), 0.0);
+    float NdotH2 = NdotH*NdotH;
+    float num   = a2;
+    float denom = (NdotH2 * (a2 - 1.0) + 1.0);
+    denom = PI * denom * denom;
+    return num / denom;
+}
+
+float GeometrySchlickGGX(float NdotV, float roughness) {
+    float r = (roughness + 1.0);
+    float k = (r*r) / 8.0;
+    float num   = NdotV;
+    float denom = NdotV * (1.0 - k) + k;
+    return num / denom;
+}
+
+float GeometrySmith(vec3 N, vec3 V, vec3 L, float roughness) {
+    float NdotV = max(dot(N, V), 0.0);
+    float NdotL = max(dot(N, L), 0.0);
+    float ggx2  = GeometrySchlickGGX(NdotV, roughness);
+    float ggx1  = GeometrySchlickGGX(NdotL, roughness);
+    return ggx1 * ggx2;
+}
+
+
+vec3 fresnelSchlick(float cosTheta, vec3 F0) {
+    return F0 + (1.0 - F0) * pow(clamp(1.0 - cosTheta, 0.0, 1.0), 5.0);
+}
 
 void main() {
-
-    // 2 lights.
-    vec3 light1 = vec3(5.0, 5.0, 2.0);
-    vec3 light2 = vec3(-5.0, -2.0, -2.0);
-    
+    // Get the material info.
     vec3 albedo = color.xyz;
-    vec3 light = 0.3 * albedo;
+    int packedMaterial = int(round(color.w*255.0));
+    float emittance = float((packedMaterial >> 1) & 0x3) / 3.0;
+    int roughnessInt = (packedMaterial >> 5) & 0x7;
+    float roughness = max(float(roughnessInt) / 7.0, 0.05);
+    float metallic = float((packedMaterial >> 3) & 0x3) / 3.0;
     
-    vec3 light1dir = normalize(light1 - pos.xyz);
-    vec3 light2dir = normalize(light2 - pos.xyz);
-    light +=  max(0.0, dot(light1dir, fnormal.xyz)) * albedo * 0.5;
-    light +=  max(0.0, dot(light2dir, fnormal.xyz)) * albedo * 0.3 * vec3(1.0, 0.7, 0.7);
-    frag_color = vec4(light, 1.0);
+    // Ambient light.
+    vec3 light = 0.3 * albedo;
+
+    // // Make emitting things look bright.
+    // if(emittance > 0.01) return vec4(albedo, 1.0);
+
+    vec3 N = normalize(fnormal.xyz);
+    vec3 V = normalize(cam - pos.xyz);
+    vec3 L = normalize(sunPosition);
+    vec3 H = normalize(V + L);
+
+    vec3 F0 = vec3(0.04);
+    F0 = mix(F0, albedo, metallic);
+    vec3 F = fresnelSchlick(max(dot(H,V), 0.0), F0);
+    float NDF = DistributionGGX(N, H, roughness);
+    float G = GeometrySmith(N, V, L, roughness);
+    vec3 numerator = NDF * G * F;
+    float denominator = 4.0 * max(dot(N, V), 0.0) * max(dot(N, L), 0.0)  + 0.0001;
+    vec3 specular = numerator / denominator;
+    float NdotL = max(dot(N, L), 0.0);
+    vec3 kD = vec3(1.0) - F;
+    kD *= 1.0 - metallic;
+
+    light += (kD * albedo / PI + specular) * NdotL * vec3(1.0, 1.0, 1.0);
+
+    frag_color = vec4(vec3(light), 1.0);
 }
 @end
 

src/trile.jai

@@ -94,7 +94,7 @@ material_to_rgba :: (mat: Material) -> (r: u8, g: u8, b: u8, a: u8) {
     r : u8 = cast(u8) (mat.color.x * 255.0);
     g : u8 = cast(u8) (mat.color.y * 255.0);
     b : u8 = cast(u8) (mat.color.z * 255.0);
-    a : u8 = material_encode_to_char(mat); // @ToDo: Do actual material value encode here.
+    a : u8 = material_encode_to_char(mat);
     return r,g,b,a;
 }
 

src/world.jai

@@ -5,23 +5,29 @@ World_Config :: struct {
     horizonHalo   : Vector3 = .{1.0, 1.0, 1.0};
     sunHalo       : Vector3 = .{1.0, 1.0, 1.0};
     sunLightColor : Vector3 = .{1.0, 1.0, 1.0};
-    sunPosition   : Vector3 = #run normalize(Vector3.{0.5, 0.5, 0.5});
+    sunPosition   : Vector3 = #run normalize(Vector3.{0.2, 0.3, 0.4});
     sunIntensity  : float = 2.0;
 
-    hasClouds     : int = 1;
+    hasClouds     : s32 = 1;
 
-    hasPlane      : int  = 0;
+    hasPlane      : s32  = 0;
     planeHeight   : float = 0.0;
-    planeType     : int   = 0;
+    planeType     : s32   = 0;
 }
 
+// Copies over all the fields of our world config into a given shader type.
+// Requires that the shader type has all of the fields the world config has.
 world_config_to_shader_type :: (wc: *World_Config, data: *$T) {
-    data.skyBase = wc.skyBase.component;
-    data.skyTop = wc.skyTop.component;
-    data.sunDisk = wc.sunDisk.component;
-    data.horizonHalo = wc.horizonHalo.component;
-    data.sunHalo = wc.sunHalo.component;
-    data.time = cast(float) get_time();
+    generate_copy_code :: () -> string {
+        builder : String_Builder;
+        ti := type_info(World_Config);
+        for ti.members {
+            if it.type == type_info(Vector3) then print_to_builder(*builder, "data.% = wc.%.component;\n", it.name, it.name);
+            else print_to_builder(*builder, "data.% = wc.%;\n", it.name, it.name);
+        }
+        return builder_to_string(*builder);
+    }
+    #insert #run generate_copy_code();
 }
 
 IVector3 :: struct {