-Add lightmapper

-Fixes to unwrapper (remove degenerates), makes Thekla not crash
-Added optional cancel button in EditorProgress
-Added function to force processing of events (needed for cancel button)

1 files changed, 64 insertions, 12 deletions

diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl
index fb0f06de01..9bc2bc079d 100644
--- a/drivers/gles3/shaders/scene.glsl
+++ b/drivers/gles3/shaders/scene.glsl
@@ -35,7 +35,7 @@ layout(location=3) in vec4 color_attrib;
 layout(location=4) in vec2 uv_attrib;
 #endif
 
-#if defined(ENABLE_UV2_INTERP)
+#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP)
 layout(location=5) in vec2 uv2_attrib;
 #endif
 
@@ -223,7 +223,7 @@ out vec4 color_interp;
 out vec2 uv_interp;
 #endif
 
-#if defined(ENABLE_UV2_INTERP)
+#if defined(ENABLE_UV2_INTERP) || defined (USE_LIGHTMAP)
 out vec2 uv2_interp;
 #endif
 
@@ -234,9 +234,6 @@ out vec3 binormal_interp;
 #endif
 
 
-
-
-
 #if defined(USE_MATERIAL)
 
 layout(std140) uniform UniformData { //ubo:1
@@ -356,7 +353,7 @@ void main() {
 	uv_interp = uv_attrib;
 #endif
 
-#if defined(ENABLE_UV2_INTERP)
+#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP)
 	uv2_interp = uv2_attrib;
 #endif
 
@@ -549,7 +546,7 @@ in vec4 color_interp;
 in vec2 uv_interp;
 #endif
 
-#if defined(ENABLE_UV2_INTERP)
+#if defined(ENABLE_UV2_INTERP) || defined(USE_LIGHTMAP)
 in vec2 uv2_interp;
 #endif
 
@@ -1357,7 +1354,7 @@ void reflection_process(int idx, vec3 vertex, vec3 normal,vec3 binormal, vec3 ta
 
 		reflection_accum+=reflection;
 	}
-
+#ifndef USE_LIGHTMAP
 	if (reflections[idx].ambient.a>0.0) { //compute ambient using skybox
 
 
@@ -1403,8 +1400,20 @@ void reflection_process(int idx, vec3 vertex, vec3 normal,vec3 binormal, vec3 ta
 		ambient_accum+=ambient_out;
 
 	}
+#endif
 }
 
+#ifdef USE_LIGHTMAP
+uniform mediump sampler2D lightmap; //texunit:-9
+uniform mediump float lightmap_energy;
+#endif
+
+#ifdef USE_LIGHTMAP_CAPTURE
+uniform mediump vec4[12] lightmap_captures;
+uniform bool lightmap_capture_sky;
+
+#endif
+
 #ifdef USE_GI_PROBES
 
 uniform mediump sampler3D gi_probe1; //texunit:-9
@@ -1632,7 +1641,7 @@ void main() {
 	vec2 uv = uv_interp;
 #endif
 
-#if defined(ENABLE_UV2_INTERP)
+#if defined(ENABLE_UV2_INTERP) || defined (USE_LIGHTMAP)
 	vec2 uv2 = uv2_interp;
 #endif
 
@@ -1745,7 +1754,7 @@ FRAGMENT_SHADER_CODE
 			//vec3 radiance = textureLod(radiance_cube, r, lod).xyz * ( brdf.x + brdf.y);
 
 		}
-
+#ifndef USE_LIGHTMAP
 		{
 
 			vec3 ambient_dir=normalize((radiance_inverse_xform * vec4(normal,0.0)).xyz);
@@ -1754,6 +1763,7 @@ FRAGMENT_SHADER_CODE
 			ambient_light=mix(ambient_light_color.rgb,env_ambient,radiance_ambient_contribution);
 			//ambient_light=vec3(0.0,0.0,0.0);
 		}
+#endif
 	}
 
 #else
@@ -1938,6 +1948,48 @@ FRAGMENT_SHADER_CODE
 
 #endif
 
+#ifdef USE_LIGHTMAP
+	ambient_light = texture(lightmap,uv2).rgb * lightmap_energy;
+#endif
+
+#ifdef USE_LIGHTMAP_CAPTURE
+	{
+		vec3 cone_dirs[12] = vec3[] (
+			vec3(0, 0, 1),
+			vec3(0.866025, 0, 0.5),
+			vec3(0.267617, 0.823639, 0.5),
+			vec3(-0.700629, 0.509037, 0.5),
+			vec3(-0.700629, -0.509037, 0.5),
+			vec3(0.267617, -0.823639, 0.5),
+			vec3(0, 0, -1),
+			vec3(0.866025, 0, -0.5),
+			vec3(0.267617, 0.823639, -0.5),
+			vec3(-0.700629, 0.509037, -0.5),
+			vec3(-0.700629, -0.509037, -0.5),
+			vec3(0.267617, -0.823639, -0.5)
+		);
+
+
+		vec3 local_normal = normalize(camera_matrix * vec4(normal,0.0)).xyz;
+		vec4 captured = vec4(0.0);
+		float sum = 0.0;
+		for(int i=0;i<12;i++) {
+			float amount = max(0.0,dot(local_normal,cone_dirs[i])); //not correct, but creates a nice wrap around effect
+			captured += lightmap_captures[i]*amount;
+			sum+=amount;
+		}
+
+		captured/=sum;
+
+		if (lightmap_capture_sky) {
+			ambient_light = mix( ambient_light, captured.rgb, captured.a);
+		} else {
+			ambient_light = captured.rgb;
+		}
+
+	}
+#endif
+
 #ifdef USE_FORWARD_LIGHTING
 
 
@@ -1952,11 +2004,11 @@ FRAGMENT_SHADER_CODE
 	} else {
 		specular_light+=env_reflection_light;
 	}
-
+#ifndef USE_LIGHTMAP
 	if (ambient_accum.a>0.0) {
 		ambient_light+=ambient_accum.rgb/ambient_accum.a;
 	}
-
+#endif
 
 
 #ifdef USE_VERTEX_LIGHTING