rendering fixes

scenes/blockout_room.tscn

@@ -101,9 +101,8 @@ curve = SubResource("Curve_gcpng")
 
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_gcpng"]
 shader = ExtResource("9_k5i88")
+shader_parameter/target_tex_size = Vector2(427, 240)
 shader_parameter/color_steps = 24.0
-shader_parameter/color_min = 0.0
-shader_parameter/color_max = 0.999999977648
 shader_parameter/color_curve = SubResource("CurveTexture_5747v")
 
 [sub_resource type="ViewportTexture" id="ViewportTexture_dp7jk"]
@@ -189,7 +188,7 @@ transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 1.8011624, 1.3881333, 4.88327
 mesh = SubResource("BoxMesh_oslft")
 
 [node name="MeshInstance3D2" type="MeshInstance3D" parent="SubViewportContainer/SubViewport/Cieling"]
-transform = Transform3D(-4.371138e-08, -1, -8.742278e-08, 1, -4.371139e-08, 8.742278e-08, -8.742278e-08, -8.742278e-08, 1, -1.085567, 0.17431808, 3.1567752)
+transform = Transform3D(-4.371138e-08, -1, -8.742278e-08, 1, -4.371139e-08, 8.742278e-08, -8.742278e-08, -8.742278e-08, 1, -1.085567, 0.19348681, 3.156775)
 mesh = SubResource("BoxMesh_gcpng")
 
 [node name="back wall" type="Node3D" parent="SubViewportContainer/SubViewport"]
@@ -218,12 +217,12 @@ skeleton = NodePath("../../Fake lights")
 [node name="Fake lights" type="Node3D" parent="SubViewportContainer/SubViewport"]
 
 [node name="OmniLight3D3" type="OmniLight3D" parent="SubViewportContainer/SubViewport"]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 5.4813757, 1.2506423, 4.327849)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 3.8505666, 1.2506423, 4.1084437)
 light_color = Color(1, 0.6068378, 0.4258487, 1)
 light_indirect_energy = 0.0
 shadow_enabled = true
-omni_range = 11.183
-omni_attenuation = 1.538
+omni_range = 2.081
+omni_attenuation = 3.068
 
 [node name="AnimationPlayer" type="AnimationPlayer" parent="SubViewportContainer/SubViewport/OmniLight3D3"]
 libraries = {
@@ -286,6 +285,10 @@ material = SubResource("FogMaterial_dp7jk")
 [node name="WorldEnvironment" type="WorldEnvironment" parent="SubViewportContainer/SubViewport"]
 environment = SubResource("Environment_dp7jk")
 
+[node name="tmp phone light" type="OmniLight3D" parent="SubViewportContainer/SubViewport"]
+transform = Transform3D(0.5765749, 0.8170443, 0, -0.8170443, 0.5765749, 0, 0, 0, 1, -2.4286354, 2.0967534, -0.82138157)
+light_energy = 0.05
+
 [node name="TextureRect" type="TextureRect" parent="."]
 material = SubResource("ShaderMaterial_gcpng")
 anchors_preset = 15

scenes/main_render.gdshader

@@ -1,25 +1,25 @@
 shader_type canvas_item;
 
+uniform vec2 target_tex_size = vec2(1280,720);
+
 uniform float color_steps:hint_range(1.0, 255.0, 1.0);
-uniform float color_min:hint_range(0.0, 1.0, 0.01) = 0;
-uniform float color_max:hint_range(0.0, 1.0, 0.01) = 1;
 uniform sampler2D color_curve;
 
+
 void vertex() {
 	// Called for every vertex the material is visible on.
 }
 
 void fragment() {
-	vec2 texSize = vec2(textureSize(TEXTURE,0)); // For performance reasons, this function should be avoided as it always performs a full texture read. When possible, you should pass the texture size as a uniform instead.
-	texSize = texSize / 4.;
-	ivec2 intUv = ivec2(texSize * UV);
-	vec2 flooredUv = vec2(intUv) / texSize;
+	//vec2 texSize = vec2(textureSize(TEXTURE,0)); // For performance reasons, this function should be avoided as it always performs a full texture read. When possible, you should pass the texture size as a uniform instead.
+	//texSize = texSize / 4.;
+	ivec2 intUv = ivec2(target_tex_size * UV);
+	vec2 flooredUv = vec2(intUv) / target_tex_size;
 	vec3 fullColor = texture(TEXTURE,flooredUv).rgb;
-	//vec3 strechedColor = (fullColor - color_min) / color_max;
 	vec3 strechedColor = vec3(
 		texture(color_curve,vec2(fullColor.r,0)).r,
-		texture(color_curve,vec2(fullColor.g,0)).r,
-		texture(color_curve,vec2(fullColor.b,0)).r);
+		texture(color_curve,vec2(fullColor.g,0)).g,
+		texture(color_curve,vec2(fullColor.b,0)).b);
 	vec3 scaledColor = strechedColor * color_steps;
 	vec3 roundColor = round(scaledColor);
 	vec3 backScaledColor = roundColor / color_steps;