fix non-shadowed renders

bind/v4k.lua

@@ -1158,6 +1158,7 @@ typedef struct light_t {
     float specularPower;
     float innerCone, outerCone;
     bool cast_shadows;
+    bool processed_shadows;
     unsigned shadow_technique;
     float shadow_distance;
     float shadow_bias;

demos/09-shadows-scene.c

@@ -0,0 +1,167 @@
+// material demo
+// - rlyeh, public domain
+//
+// @todo: object_print(obj, "");
+
+#include "v4k.h"
+
+
+const char *skyboxes[][2] = { // reflection, env, metadata
+    {"hdr/Tokyo_BigSight_1k.hdr","hdr/Tokyo_BigSight_Env.hdr"},
+    {"hdr/graffiti_shelter_4k.hdr","hdr/graffiti_shelter_Env.hdr"},
+    {"hdr/music_hall_01_4k.hdr","hdr/music_hall_01_Env.hdr"},
+    {"hdr/the_sky_is_on_fire_2k.hdr","hdr/the_sky_is_on_fire_Env.hdr"},
+    {"hdr/GCanyon_C_YumaPoint_1k.hdr","hdr/GCanyon_C_YumaPoint_Env.hdr"},
+    {"hdr/Factory_Catwalk_1k.hdr","hdr/Factory_Catwalk_Env.hdr"},
+    {"hdr/MonValley_G_DirtRoad_1k.hdr","hdr/MonValley_G_DirtRoad_Env.hdr"},
+    {"hdr/Shiodome_Stairs_1k.hdr","hdr/Shiodome_Stairs_Env.hdr"},
+    {"hdr/mesto.hdr","hdr/mesto_Env.hdr"},
+};
+
+int main() {
+    // create the window
+    window_create( 0.75f, 0 );
+    window_color( GRAY );
+
+    // create camera
+    camera_t cam = camera();
+
+    // fx: load all post fx files in all subdirs.
+    fx_load("fx**.fs");
+    fx_enable(fx_find("fxTonemapACES.fs"), 1);
+
+    // load video, RGB texture, no audio
+    video_t *v = video( "pexels-pachon-in-motion-17486489.mp4", VIDEO_RGB | VIDEO_NO_AUDIO | VIDEO_LOOP ); video_seek(v, 30);
+    // load texture
+    texture_t t1 = texture("kgirl/g01_texture.png", 0);
+    texture_t t2 = texture("matcaps/material3", 0);
+    // load model
+    model_t m1 = model("suzanne.obj", MODEL_NO_ANIMATIONS);
+    model_t m5 = model("suzanne.obj", MODEL_NO_ANIMATIONS);
+    model_t m2 = model("suzanne.obj", MODEL_NO_ANIMATIONS|MODEL_MATCAPS);
+    model_t m3 = model("damagedhelmet.gltf", MODEL_NO_ANIMATIONS|MODEL_PBR);
+    // model_t m3 = model("Scutum_low.fbx", MODEL_NO_ANIMATIONS|MODEL_PBR);
+    model_t m4 = model("cube.obj", MODEL_NO_ANIMATIONS);
+    // model_t m4 = model("avp/scene.gltf", MODEL_NO_ANIMATIONS|MODEL_PBR);
+    // model_t m3 = model("Cerberus_LP.FBX", MODEL_NO_ANIMATIONS|MODEL_PBR); 
+
+    array(char*) list = 0;
+    for each_array( vfs_list("demos/art/shadertoys/**.fs"), char*, dir ) {
+        array_push(list, STRDUP(file_name(dir)));
+    }
+
+    shadertoy_t sh = shadertoy(*list, SHADERTOY_IGNORE_MOUSE|SHADERTOY_FLIP_Y); // 0:no flags
+    sh.dims.x = 1024;
+    sh.dims.y = 1024;
+    shadertoy_render(&sh, 0);
+
+    // spawn object1 (diffuse)
+    object_t* obj1 = scene_spawn();
+    object_model(obj1, m1);
+    object_diffuse(obj1, t1);
+    object_scale(obj1, vec3(3,3,3));
+    object_move(obj1, vec3(-10+5*0,0,-10));
+    object_pivot(obj1, vec3(0,90,0));
+
+    // spawn object2 (matcap)
+    object_t* obj2 = scene_spawn();
+    object_model(obj2, m2);
+    object_diffuse(obj2, t2);
+    object_scale(obj2, vec3(3,3,3));
+    object_move(obj2, vec3(-10+5*2,0,-10));
+    object_pivot(obj2, vec3(0,90,0));
+
+    // spawn object3 (video)
+    object_t* obj3 = scene_spawn();
+    object_model(obj3, m5);
+    object_diffuse(obj3, video_textures(v)[0]);
+    object_scale(obj3, vec3(3,3,3));
+    object_move(obj3, vec3(-10+5*1,0,-10));
+    object_pivot(obj3, vec3(0,90,0));
+
+    // spawn object4 (pbr)
+    object_t* obj4 = scene_spawn();
+    object_model(obj4, m3);
+    object_scale(obj4, vec3(3,3,3));
+    object_move(obj4, vec3(-10+6*3,0,-10));
+    // object_pivot(obj4, vec3(0,0,90));
+    object_pivot(obj4, vec3(0,90,0));
+
+    // spawn object5 (shadertoy)
+    object_t* obj5 = scene_spawn();
+    object_model(obj5, m4);
+    object_diffuse(obj5, sh.tx);
+    object_scale(obj5, vec3(3,3,3));
+    object_move(obj5, vec3(-10+8*3,0,-10));
+    object_pivot(obj5, vec3(0,90,0));
+
+    // create point light
+    // scene_spawn_light(); // sun
+    light_t* l = scene_spawn_light();
+    light_type(l, LIGHT_POINT);
+    // l->diffuse = vec3(0,0,0);
+
+    // load skybox
+    scene_get_active()->skybox = skybox_pbr(skyboxes[0][0], skyboxes[0][0], skyboxes[0][1]);
+
+
+    while(window_swap() && !input(KEY_ESC)) {
+        // draw environment
+        // ddraw_grid(0);
+
+        // update video
+        video_decode( v );
+
+        // update light position
+        light_teleport(l, cam.position);
+
+        // update shadertoy
+        shadertoy_render(&sh, window_delta());
+
+        // draw scene
+        fx_begin();
+        scene_render(SCENE_FOREGROUND|SCENE_BACKGROUND|SCENE_UPDATE_SH_COEF);
+        fx_end();
+
+        // fps camera
+        bool active = ui_active() || ui_hover() || gizmo_active() ? false : input(MOUSE_L) || input(MOUSE_M) || input(MOUSE_R);
+        if( active ) cam.speed = clampf(cam.speed + input_diff(MOUSE_W) / 10, 0.05f, 5.0f);
+        vec2 mouselook = scale2(vec2(input_diff(MOUSE_X), -input_diff(MOUSE_Y)), 0.2f * active);
+        vec3 wasdec = scale3(vec3(input(KEY_D)-input(KEY_A),input(KEY_E)-input(KEY_C),input(KEY_W)-input(KEY_S)), cam.speed);
+        camera_moveby(&cam, wasdec);
+        camera_fps(&cam, mouselook.x,mouselook.y);
+        window_cursor( !active );
+
+        if (ui_panel("FXs", 0)) {
+            ui_fxs();
+            ui_panel_end();
+        }
+
+        if( ui_panel( "Viewer", 0 ) ) {
+            for( int i = 0; i < countof(skyboxes); i++ ) {
+                const char *filename = skyboxes[i][0];
+                // bool selected = !strcmp(g_skybox.reflection->filename, file_name(filename));
+                bool selected = false;
+                if( ui_bool( filename, &selected ) ) {
+                    scene_get_active()->skybox = skybox_pbr(skyboxes[i][0], skyboxes[i][0], skyboxes[i][1]);
+                }
+            }
+            ui_panel_end();
+        }
+
+        static int selected = 0;
+        if( ui_panel("Shadertoy", 1)) {
+            for( int i = 0; i < array_count(list); ++i ) {
+                bool in_use = i == selected;
+                if( ui_bool(list[i], &in_use) ) {
+                    sh = shadertoy( list[selected = i], SHADERTOY_IGNORE_MOUSE|SHADERTOY_FLIP_Y );
+                    sh.dims.x = 1024;
+                    sh.dims.y = 1024;
+                    shadertoy_render(&sh, 0);
+                    object_diffuse(obj5, sh.tx);
+                }
+            }
+            ui_panel_end();
+        }
+    }
+}

engine/art/shaderlib/light.glsl

@@ -18,6 +18,7 @@ struct light_t {
     float radius;
     float innerCone;
     float outerCone;
+    bool processed_shadows;
     
     // falloff
     float constant;

engine/art/shaderlib/shadowmap.glsl

@@ -102,15 +102,17 @@ vec4 shadowmap(in vec4 peye, in vec4 neye) {
         light_t light = u_lights[i];
         float factor = 0.0;
 
-        if (light.type == LIGHT_DIRECTIONAL) {
+        if (light.processed_shadows) {
-            total_casters++;
+            if (light.type == LIGHT_DIRECTIONAL) {
-            factor += shadow_pcf(-peye.z, light.dir, i);
+                total_casters++;
-        } else if (light.type == LIGHT_POINT || light.type == LIGHT_SPOT) {
+                factor += shadow_pcf(-peye.z, light.dir, i);
-            total_casters++;
+            } else if (light.type == LIGHT_POINT || light.type == LIGHT_SPOT) {
-            vec3 light_pos = (view * vec4(light.pos, 1.0)).xyz;
+                total_casters++;
-            vec3 dir = light_pos - fragment;
+                vec3 light_pos = (view * vec4(light.pos, 1.0)).xyz;
-            vec4 sc = inv_view * vec4(dir, 0.0);
+                vec3 dir = light_pos - fragment;
-            factor += shadow_vsm(length(dir), -sc.xyz, i);
+                vec4 sc = inv_view * vec4(dir, 0.0);
+                factor += shadow_vsm(length(dir), -sc.xyz, i);
+            }
         }
         shadowFactor += factor;
     }

engine/joint/v4k.h

@@ -17283,6 +17283,7 @@ typedef struct light_t {
 
     // Shadowmapping
     bool cast_shadows;
+    bool processed_shadows;
     unsigned shadow_technique;
     float shadow_distance;
     float shadow_bias;
@@ -383219,6 +383220,7 @@ light_t light() {
     l.innerCone = 0.85f;// 31 deg
     l.outerCone = 0.9f; // 25 deg
     l.cast_shadows = true;
+    l.processed_shadows = false;
     l.shadow_distance = 200.0f;
     l.shadow_bias = 0.01f;
     return l;
@@ -383299,8 +383301,11 @@ void light_update(unsigned num_lights, light_t *lv) {
         shader_float(va("u_lights[%d].quadratic", i), lv[i].falloff.quadratic);
         shader_float(va("u_lights[%d].innerCone", i), lv[i].innerCone);
         shader_float(va("u_lights[%d].outerCone", i), lv[i].outerCone);
-        for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+        shader_bool(va("u_lights[%d].processed_shadows", i), lv[i].processed_shadows);
-            shader_mat44(va("u_lights[%d].shadow_matrix[%d]", i, j), lv[i].shadow_matrix[j]);
+        if (lv[i].processed_shadows) {
+            for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+                shader_mat44(va("u_lights[%d].shadow_matrix[%d]", i, j), lv[i].shadow_matrix[j]);
+            }
         }
     }
 }
@@ -383535,6 +383540,7 @@ static void shadowmap_light_point(shadowmap_t *s, light_t *l, int dir) {
     copy44(s->V, V);
     copy44(s->PV, PV);
     
+    l->processed_shadows = true;
     s->shadow_technique = l->shadow_technique = SHADOW_VSM;
     model_setpass(RENDER_PASS_SHADOW_VSM);
 }
@@ -383640,6 +383646,7 @@ static void shadowmap_light_directional(shadowmap_t *s, light_t *l, int dir, flo
     copy44(s->PV, PV);
     copy44(l->shadow_matrix[s->cascade_index], PV);
 
+    l->processed_shadows = true;
     s->shadow_technique = l->shadow_technique = SHADOW_PCF;
     model_setpass(RENDER_PASS_SHADOW_PCF);
 }
@@ -383753,6 +383760,7 @@ void shadowmap_clear_fbo() {
 }
 
 void shadowmap_light(shadowmap_t *s, light_t *l, mat44 cam_proj, mat44 cam_view) {
+    l->processed_shadows = false;
     if (l->cast_shadows) {
         int step = s->step - 1;
 
@@ -385981,9 +385989,8 @@ void model_set_uniforms(model_t m, int shader, mat44 mv, mat44 proj, mat44 view,
     }
 
     // shadow receiving
-    if (m.shadow_receiver) {
+    if (m.shadow_map && m.shadow_receiver) {
-        ASSERT(m.shadow_map);
+        shader_bool("u_shadow_receiver", m.shadow_receiver);
-        shader_bool("u_shadow_receiver", GL_TRUE);
         for (int i = 0; i < MAX_LIGHTS; i++) {
             shader_cubemap(va("shadowMap[%d]", i), m.shadow_map->maps[i].texture);
             for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
@@ -385992,7 +385999,14 @@ void model_set_uniforms(model_t m, int shader, mat44 mv, mat44 proj, mat44 view,
                 shader_float(va("u_cascade_distances[%d]", j), m.shadow_map->cascade_distances[j]);
             }
         }
-    } else {
+    }
+    else if (m.shadow_map == NULL || !m.shadow_receiver) {
+        for (int i = 0; i < MAX_LIGHTS; i++) {
+            shader_cubemap(va("shadowMap[%d]", i), 0);
+            for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+                shader_texture_unit(va("shadowMap2D[%d]", i * NUM_SHADOW_CASCADES + j), 0, texture_unit());
+            }
+        }
         shader_bool("u_shadow_receiver", GL_FALSE);
     }
 
@@ -387107,7 +387121,6 @@ void model_draw_call(model_t m, int shader, int pass, vec3 cam_pos, mat44 model_
             rs = &m.rs[rs_idx];
             renderstate_apply(rs);
         }
-
         if (rs_idx < RENDER_PASS_SHADOW_BEGIN || rs_idx > RENDER_PASS_SHADOW_END) {
             if (m.shading != SHADING_PBR) {
                 shader_texture_unit("u_texture2d", q->textures[i], texture_unit());

engine/split/v4k_render.c

@@ -1483,6 +1483,7 @@ light_t light() {
     l.innerCone = 0.85f;// 31 deg
     l.outerCone = 0.9f; // 25 deg
     l.cast_shadows = true;
+    l.processed_shadows = false;
     l.shadow_distance = 200.0f;
     l.shadow_bias = 0.01f;
     return l;
@@ -1563,8 +1564,11 @@ void light_update(unsigned num_lights, light_t *lv) {
         shader_float(va("u_lights[%d].quadratic", i), lv[i].falloff.quadratic);
         shader_float(va("u_lights[%d].innerCone", i), lv[i].innerCone);
         shader_float(va("u_lights[%d].outerCone", i), lv[i].outerCone);
-        for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+        shader_bool(va("u_lights[%d].processed_shadows", i), lv[i].processed_shadows);
-            shader_mat44(va("u_lights[%d].shadow_matrix[%d]", i, j), lv[i].shadow_matrix[j]);
+        if (lv[i].processed_shadows) {
+            for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+                shader_mat44(va("u_lights[%d].shadow_matrix[%d]", i, j), lv[i].shadow_matrix[j]);
+            }
         }
     }
 }
@@ -1799,6 +1803,7 @@ static void shadowmap_light_point(shadowmap_t *s, light_t *l, int dir) {
     copy44(s->V, V);
     copy44(s->PV, PV);
     
+    l->processed_shadows = true;
     s->shadow_technique = l->shadow_technique = SHADOW_VSM;
     model_setpass(RENDER_PASS_SHADOW_VSM);
 }
@@ -1904,6 +1909,7 @@ static void shadowmap_light_directional(shadowmap_t *s, light_t *l, int dir, flo
     copy44(s->PV, PV);
     copy44(l->shadow_matrix[s->cascade_index], PV);
 
+    l->processed_shadows = true;
     s->shadow_technique = l->shadow_technique = SHADOW_PCF;
     model_setpass(RENDER_PASS_SHADOW_PCF);
 }
@@ -2017,6 +2023,7 @@ void shadowmap_clear_fbo() {
 }
 
 void shadowmap_light(shadowmap_t *s, light_t *l, mat44 cam_proj, mat44 cam_view) {
+    l->processed_shadows = false;
     if (l->cast_shadows) {
         int step = s->step - 1;
 
@@ -4245,9 +4252,8 @@ void model_set_uniforms(model_t m, int shader, mat44 mv, mat44 proj, mat44 view,
     }
 
     // shadow receiving
-    if (m.shadow_receiver) {
+    if (m.shadow_map && m.shadow_receiver) {
-        ASSERT(m.shadow_map);
+        shader_bool("u_shadow_receiver", m.shadow_receiver);
-        shader_bool("u_shadow_receiver", GL_TRUE);
         for (int i = 0; i < MAX_LIGHTS; i++) {
             shader_cubemap(va("shadowMap[%d]", i), m.shadow_map->maps[i].texture);
             for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
@@ -4256,7 +4262,14 @@ void model_set_uniforms(model_t m, int shader, mat44 mv, mat44 proj, mat44 view,
                 shader_float(va("u_cascade_distances[%d]", j), m.shadow_map->cascade_distances[j]);
             }
         }
-    } else {
+    }
+    else if (m.shadow_map == NULL || !m.shadow_receiver) {
+        for (int i = 0; i < MAX_LIGHTS; i++) {
+            shader_cubemap(va("shadowMap[%d]", i), 0);
+            for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+                shader_texture_unit(va("shadowMap2D[%d]", i * NUM_SHADOW_CASCADES + j), 0, texture_unit());
+            }
+        }
         shader_bool("u_shadow_receiver", GL_FALSE);
     }
 
@@ -5371,7 +5384,6 @@ void model_draw_call(model_t m, int shader, int pass, vec3 cam_pos, mat44 model_
             rs = &m.rs[rs_idx];
             renderstate_apply(rs);
         }
-
         if (rs_idx < RENDER_PASS_SHADOW_BEGIN || rs_idx > RENDER_PASS_SHADOW_END) {
             if (m.shading != SHADING_PBR) {
                 shader_texture_unit("u_texture2d", q->textures[i], texture_unit());

engine/split/v4k_render.h

@@ -315,6 +315,7 @@ typedef struct light_t {
 
     // Shadowmapping
     bool cast_shadows;
+    bool processed_shadows;
     unsigned shadow_technique;
     float shadow_distance;
     float shadow_bias;

engine/v4k.c

@@ -18282,6 +18282,7 @@ light_t light() {
     l.innerCone = 0.85f;// 31 deg
     l.outerCone = 0.9f; // 25 deg
     l.cast_shadows = true;
+    l.processed_shadows = false;
     l.shadow_distance = 200.0f;
     l.shadow_bias = 0.01f;
     return l;
@@ -18362,8 +18363,11 @@ void light_update(unsigned num_lights, light_t *lv) {
         shader_float(va("u_lights[%d].quadratic", i), lv[i].falloff.quadratic);
         shader_float(va("u_lights[%d].innerCone", i), lv[i].innerCone);
         shader_float(va("u_lights[%d].outerCone", i), lv[i].outerCone);
-        for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+        shader_bool(va("u_lights[%d].processed_shadows", i), lv[i].processed_shadows);
-            shader_mat44(va("u_lights[%d].shadow_matrix[%d]", i, j), lv[i].shadow_matrix[j]);
+        if (lv[i].processed_shadows) {
+            for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+                shader_mat44(va("u_lights[%d].shadow_matrix[%d]", i, j), lv[i].shadow_matrix[j]);
+            }
         }
     }
 }
@@ -18598,6 +18602,7 @@ static void shadowmap_light_point(shadowmap_t *s, light_t *l, int dir) {
     copy44(s->V, V);
     copy44(s->PV, PV);
     
+    l->processed_shadows = true;
     s->shadow_technique = l->shadow_technique = SHADOW_VSM;
     model_setpass(RENDER_PASS_SHADOW_VSM);
 }
@@ -18703,6 +18708,7 @@ static void shadowmap_light_directional(shadowmap_t *s, light_t *l, int dir, flo
     copy44(s->PV, PV);
     copy44(l->shadow_matrix[s->cascade_index], PV);
 
+    l->processed_shadows = true;
     s->shadow_technique = l->shadow_technique = SHADOW_PCF;
     model_setpass(RENDER_PASS_SHADOW_PCF);
 }
@@ -18816,6 +18822,7 @@ void shadowmap_clear_fbo() {
 }
 
 void shadowmap_light(shadowmap_t *s, light_t *l, mat44 cam_proj, mat44 cam_view) {
+    l->processed_shadows = false;
     if (l->cast_shadows) {
         int step = s->step - 1;
 
@@ -21044,9 +21051,8 @@ void model_set_uniforms(model_t m, int shader, mat44 mv, mat44 proj, mat44 view,
     }
 
     // shadow receiving
-    if (m.shadow_receiver) {
+    if (m.shadow_map && m.shadow_receiver) {
-        ASSERT(m.shadow_map);
+        shader_bool("u_shadow_receiver", m.shadow_receiver);
-        shader_bool("u_shadow_receiver", GL_TRUE);
         for (int i = 0; i < MAX_LIGHTS; i++) {
             shader_cubemap(va("shadowMap[%d]", i), m.shadow_map->maps[i].texture);
             for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
@@ -21055,7 +21061,14 @@ void model_set_uniforms(model_t m, int shader, mat44 mv, mat44 proj, mat44 view,
                 shader_float(va("u_cascade_distances[%d]", j), m.shadow_map->cascade_distances[j]);
             }
         }
-    } else {
+    }
+    else if (m.shadow_map == NULL || !m.shadow_receiver) {
+        for (int i = 0; i < MAX_LIGHTS; i++) {
+            shader_cubemap(va("shadowMap[%d]", i), 0);
+            for (int j = 0; j < NUM_SHADOW_CASCADES; j++) {
+                shader_texture_unit(va("shadowMap2D[%d]", i * NUM_SHADOW_CASCADES + j), 0, texture_unit());
+            }
+        }
         shader_bool("u_shadow_receiver", GL_FALSE);
     }
 
@@ -22170,7 +22183,6 @@ void model_draw_call(model_t m, int shader, int pass, vec3 cam_pos, mat44 model_
             rs = &m.rs[rs_idx];
             renderstate_apply(rs);
         }
-
         if (rs_idx < RENDER_PASS_SHADOW_BEGIN || rs_idx > RENDER_PASS_SHADOW_END) {
             if (m.shading != SHADING_PBR) {
                 shader_texture_unit("u_texture2d", q->textures[i], texture_unit());

engine/v4k.h

@@ -3350,6 +3350,7 @@ typedef struct light_t {
 
     // Shadowmapping
     bool cast_shadows;
+    bool processed_shadows;
     unsigned shadow_technique;
     float shadow_distance;
     float shadow_bias;