spot light map

shaders/ds_light.glsl

@@ -71,6 +71,14 @@ float rand(vec2 co) {
     return fract(sin(sn) * c) - 0.5;
 }
 
+vec4 qgl_lightTexture(int index, vec2 coord, vec4 tex_shift) {
+	coord *= qgl_light_parameter[index].map.scale;
+	vec4 t = texture(qgl_texture_array[qgl_light_parameter[index].map.array_index],
+						   vec3(coord, qgl_light_parameter[index].map.map_index));
+	t += tex_shift;
+	t.rgb *= qgl_light_parameter[index].map.amount + qgl_light_parameter[index].map.offset;
+	return t;
+}
 
 void calcLight(in int index, in vec3 n, in vec3 v) {
 	lpos = qgl_light_position[index].position;
@@ -82,16 +90,20 @@ void calcLight(in int index, in vec3 n, in vec3 v) {
 	NdotL = max(dot(n, ldir), 1E-8);
 	NdotH = max(dot(n, halfV), 1E-8);
 	spot = step(1.001E-8, NdotL) * qgl_light_parameter[index].decay_intensity.w;
+	vec3 light_color = qgl_light_parameter[index].color.rgb;
 #ifdef SPOT
 	float scos = max(dot(-ldir, qgl_light_position[index].direction.xyz), 0.);
 	spot *= scos * step(qgl_light_parameter[index].angles.w, scos);
 	spot *= smoothstep(qgl_light_parameter[index].angles.w, qgl_light_parameter[index].angles.y, scos);
+	vec4 shp = mapScreenToShadow(index, vec3(0));
+	vec4 light_map_pix = qgl_lightTexture(index, shp.xy / shp.w, vec4(0));
+	light_color *= light_map_pix.rgb;
+	spot *= light_map_pix.a;
 	
 	if (int(round(qgl_light_parameter[index].flags)) == 1 && bitfieldExtract(flags, 3, 1) == 1) {
 		
 		int layer = index - lights_start;
 		float shadow = 0.;
-		vec4 shp = mapScreenToShadow(index, vec3(0));
 		
 		if (soft_shadows_enabled) {
 			
@@ -168,13 +180,13 @@ void calcLight(in int index, in vec3 n, in vec3 v) {
 	float ndlc = (1. - NdotLs) / NdotLs;
 	diff = 2. / (1. + sqrt(1. + (1. - rough_diff) * ndlc));
 	//diff = texture(tex_coeffs[0], vec2(roughness, (NdotLs))).r;
-	li += spot * diff * qgl_light_parameter[index].color.rgb;
+	li += spot * diff * light_color;
 	
 	ndlc = (1. - NdotHs) / NdotHs;
 	float der = NdotHs * (rough_spec + ndlc);
 	spec = rough_spec / (der*der) / PI;
 	//spec = texture(tex_coeffs[1], vec2(roughness, (NdotHs))).r;
-	si += spot * spec * qgl_light_parameter[index].color.rgb;
+	si += spot * spec * light_color;
 }
 
 

src/core/core/glmaterial.cpp

@@ -59,10 +59,10 @@ void Map::copyToQGLMap(QGLMap & m) const {
 	m.offset = color_offset;
 	m.scale  = QVector2D(bitmap_scale);
 	if (loadedBitmap() && use_bitmap) {
-		m.array_index = tarMaps;
+		m.array_index = 1;
 		m.map_index   = _layer;
 	} else {
-		m.array_index = tarEmpty;
+		m.array_index = 0;
 		m.map_index   = (_type == mtNormal ? emrBlue : emrWhite);
 	}
 }

src/core/core/glshaders_headers.h

@@ -99,6 +99,7 @@ const char qgl_structs[]       = "#define QGL_MAPS_COUNT    6\n"
 								 "	vec4 angles;\n"
 								 "	float size;\n"
 								 "	float flags;\n"
+								 "	QGLMap map;\n"
 								 "};\n"
 								 "struct QGLLightPosition {\n"
 								 "	vec4 position;\n"

src/core/core/glshaders_types.h

@@ -97,18 +97,17 @@ enum BindingPoints {
 };
 
 enum MapType {
-	mtDiffuse    = 0,
+	mtDiffuse   = 0,
-	mtNormal     = 1,
+	mtNormal    = 1,
-	mtMetalness  = 2,
+	mtMetalness = 2,
-	mtRoughness  = 3,
+	mtRoughness = 3,
-	mtEmission   = 4,
+	mtEmission  = 4,
-	mtRelief     = 5,
+	mtRelief    = 5,
-	mtShadowCone = 8,
 };
 enum TextureArrayRole {
-	tarEmpty       = 0,
+	tarEmpty       = 10,
-	tarMaps        = 1,
+	tarMaps        = 11,
-	tarShadowsCone = 10,
+	tarShadowsCone = 12,
 };
 enum EmptyMapRole {
 	emrWhite = 0,
@@ -142,6 +141,7 @@ struct QGLLightParameter {
 	GLfloat size  = 0.1f;
 	GLfloat flags = 0;
 	GLfloat _align[2];
+	QGLMap map;
 };
 struct QGLLightPosition {
 	QGLLightPosition() { QMatrix4x4().copyDataTo(shadowmatrix); }

src/core/render/renderer.cpp

@@ -164,14 +164,10 @@ bool Renderer::bindShader(QOpenGLShaderProgram * sp) {
 
 void Renderer::initShaders() {
 	if (!need_init_shaders) return;
-	need_init_shaders = false;
+	need_init_shaders           = false;
 	// initUniformBuffer(shaders.value(srGeometrySolidPass), &buffer_materials, bpMaterials, "QGLMaterialData");
 	// initUniformBuffer(shaders.value(srGeometryTransparentPass), &buffer_materials, bpMaterials, "QGLMaterialData");
 	// initUniformBuffer(shaders.value(srShadowPass), &buffer_materials, bpMaterials, "QGLMaterialData");
-	QVector<GLuint> samplers;
-	samplers.resize(16);
-	for (int i = 0; i < samplers.size(); ++i)
-		samplers[i] = mtShadowCone + i;
 	QOpenGLShaderProgram * prog = 0;
 	for (ShaderRole role: {srLightOmniPass, srLightSpotPass}) {
 		if (!bindShader(role, &prog)) continue;
@@ -182,6 +178,7 @@ void Renderer::initShaders() {
 			prog->setUniformValue(QString("tex_%1").arg(i).toLatin1().constData(), i);
 		prog->setUniformValue("tex_coeffs[0]", (int)Renderer::dbrBuffersCount);
 		prog->setUniformValue("tex_env", (int)Renderer::dbrBuffersCount + 1);
+		setUniformMaps(prog);
 		prog->setUniformValue("tex_shadows_cone", (int)tarShadowsCone);
 	}
 	if (bindShader(srFinalPass, &prog)) {
@@ -386,7 +383,7 @@ void Renderer::renderScene() {
 	}
 	phase.end();
 
-	/// shadows
+	/// shadows and shadow matrix
 	phase.begin("shadows");
 	if (bindShader(srShadowPass, &prog)) {
 		glEnableDepth();
@@ -399,8 +396,7 @@ void Renderer::renderScene() {
 		mat_vp.scale(0.5, 0.5);
 		mat_vp.translate(1, 1);
 		for (int i = 0; i < cone_ll.size(); ++i) {
-			Light * l = cone_ll[i];
+			Light * l     = cone_ll[i];
-			if (!l->isCastShadows()) continue;
 			QMatrix4x4 pm = glMatrixPerspective(l->angle_end, 1., 0.1), om, vm;
 			om.translate(-l->worldAim());
 			vm.translate(0., 0., -l->distance());
@@ -409,8 +405,10 @@ void Renderer::renderScene() {
 			pmat(0, 3) = pmat(1, 3) = pmat(2, 3) = 0.;
 			vm *= pmat.inverted();
 			auto vpm = pm * (vm * om);
-			prog->setUniformValue("qgl_ViewProjMatrix", vpm);
+			if (l->isCastShadows()) {
-			renderShadow(i, l);
+				prog->setUniformValue("qgl_ViewProjMatrix", vpm);
+				renderShadow(i, l);
+			}
 			l->shadow_matrix = mat_vp * vpm * cam_ivm;
 		}
 	}

src/core/render/renderer_base.cpp

@@ -153,6 +153,9 @@ void RendererBase::reloadMaterials(Scene & scene) {
 	for (Material * m: scene.materials) {
 		m->load(textures_manager);
 	}
+	auto cone_ll = scene.lights_used.value(Light::Cone);
+	for (auto * l: cone_ll)
+		l->light_map.load(textures_manager);
 	uint cur_maps_hash = textures_manager->texturesHash() ^ ((maps_size.width() << 16) | maps_size.height());
 	if (maps_hash != cur_maps_hash) {
 		maps_hash = cur_maps_hash;
@@ -164,6 +167,8 @@ void RendererBase::reloadMaterials(Scene & scene) {
 	for (Material * m: scene.materials) {
 		m->setMapsLayers(textures_manager);
 	}
+	for (auto * l: cone_ll)
+		l->light_map.setMapLayer(textures_manager);
 	textures_manager->loadingDone();
 
 	QGLMaterial glm;
@@ -227,6 +232,7 @@ void RendererBase::reloadLightsParameters(const QMap<int, QList<Light *>> & ligh
 		so.decay_intensity[3] = l->intensity;
 		so.size               = l->size;
 		so.flags              = l->cast_shadow ? 1 : 0;
+		if (l->light_type == Light::Cone) l->light_map.copyToQGLMap(so.map);
 	}
 	buffer_lights.bind(view);
 	buffer_lights.resize(view, cur_lights_params_.size() * sizeof(QGLLightParameter));

src/core/scene/globject.cpp

@@ -675,7 +675,8 @@ QDataStream & operator<<(QDataStream & s, const ObjectBase * p) {
 			.add(108, l->decay_end)
 			.add(109, int(l->light_type))
 			.add(111, l->distance())
-			.add(112, l->size);
+			.add(112, l->size)
+			.add(113, l->light_map);
 	}
 	if (p->type_ == ObjectBase::glCamera) {
 		// qDebug() << "place camera ...";
@@ -797,6 +798,9 @@ QDataStream & operator>>(QDataStream & s, ObjectBase *& p) {
 		case 112:
 			if (l) l->size = cs.getData<double>();
 			break;
+		case 113:
+			if (l) l->light_map = cs.getData<Map>();
+			break;
 		case 200:
 			if (c) c->setAim(cs.getData<QVector3D>());
 			break;

src/core/scene/globject.h

@@ -427,6 +427,7 @@ public:
 	Type light_type;
 	Framebuffer shadow_map;
 	QMatrix4x4 shadow_matrix;
+	Map light_map;
 };
 
 template<class T>

src/widgets/material_map_editor.cpp

@@ -128,6 +128,7 @@ Map MaterialMapEditor::map() {
 */
 
 void MaterialMapEditor::on_buttonSelect_clicked() {
+	if (!map) return;
 	QString str = QFileDialog::getOpenFileName(this,
 	                                           "Select image",
 	                                           ui->linePath->property("GLpath").toString(),
@@ -142,6 +143,7 @@ void MaterialMapEditor::on_buttonSelect_clicked() {
 
 
 void MaterialMapEditor::on_buttonClear_clicked() {
+	if (!map) return;
 	ui->linePath->setText("");
 	ui->linePath->setProperty("GLpath", "");
 	map->clearBitmap();

src/widgets/material_map_editor.h

@@ -45,7 +45,7 @@ protected:
 
 	bool active;
 	Ui::MaterialMapEditor * ui;
-	Map * map;
+	Map * map = nullptr;
 
 private slots:
 	void mapChanged();

src/widgets/object_editor.cpp

@@ -21,6 +21,7 @@
 #include "qglview.h"
 #include "ui_object_editor.h"
 
+#include <QScrollBar>
 #include <scroll_spin_box.h>
 #include <spinslider.h>
 
@@ -30,6 +31,7 @@ ObjectEditor::ObjectEditor(QWidget * parent): QWidget(parent) {
 	ui->setupUi(this);
 	ui->scrollArea->viewport()->setAutoFillBackground(false);
 	ui->scrollAreaWidgetContents->setAutoFillBackground(false);
+	ui->mapLight->configure(tr("Map"), false);
 	view        = 0;
 	active      = true;
 	ignore_next = false;
@@ -37,6 +39,7 @@ ObjectEditor::ObjectEditor(QWidget * parent): QWidget(parent) {
 	ui->scrollArea->setEnabled(false);
 	ui->labelAimDist->hide();
 	ui->spinAimDist->hide();
+	ui->mapLight->hide();
 
 	QObjectList ol;
 	ol << ui->spinPosX << ui->spinPosY << ui->spinPosZ << ui->spinRotationX << ui->spinRotationY << ui->spinRotationZ << ui->spinScaleX
@@ -87,6 +90,7 @@ void ObjectEditor::changeEvent(QEvent * e) {
 
 
 void ObjectEditor::selectionChanged() {
+	int vpos = ui->scrollArea->verticalScrollBar()->value();
 	if (ignore_next) {
 		ignore_next = false;
 		return;
@@ -101,6 +105,7 @@ void ObjectEditor::selectionChanged() {
 	ui->scrollArea->setEnabled(true);
 	if (sol.size() == 1) {
 		setObject(sol[0]);
+		ui->scrollArea->verticalScrollBar()->setValue(vpos);
 		return;
 	}
 	bool hl = !view->selectedLights().isEmpty(), hc = !view->selectedCameras().isEmpty();
@@ -156,6 +161,7 @@ void ObjectEditor::setObject(ObjectBase * o) {
 		ui->spinLightSize->setValue(l->size);
 		ui->spinAimDist->setValue(l->distance());
 		on_comboLightType_currentIndexChanged(ui->comboLightType->currentIndex());
+		if (l->light_type == Light::Cone) ui->mapLight->setMap(&(l->light_map));
 	}
 	if (is_c) {
 		Camera * c = globject_cast<Camera *>(o);
@@ -186,6 +192,7 @@ void ObjectEditor::on_comboLightType_currentIndexChanged(int index) {
 	ui->labelLightAngleDash->setVisible(ang);
 	ui->spinLightAngleStart->setVisible(ang);
 	ui->spinLightAngleEnd->setVisible(ang);
+	ui->mapLight->setVisible(ang);
 	if (!view || !active) return;
 	QList<Light *> sll = view->selectedLights();
 	foreach(Light * o, sll) {
@@ -206,6 +213,15 @@ void ObjectEditor::on_buttonColor_colorChanged(const QColor & v) {
 }
 
 
+void ObjectEditor::on_mapLight_changed() {
+	if (!view || !active) return;
+	QList<Light *> sll = view->selectedLights();
+	foreach(Light * o, sll) {
+		o->apply();
+	}
+}
+
+
 void ObjectEditor::spinChanged(double v) {
 	if (!view || !active) return;
 	ObjectBaseList sol = view->selectedObjects(true);

src/widgets/object_editor.h

@@ -50,6 +50,7 @@ private slots:
 
 	void on_comboLightType_currentIndexChanged(int index);
 	void on_buttonColor_colorChanged(const QColor & v);
+	void on_mapLight_changed();
 	void spinChanged(double v);
 	void spinTextureChanged(double v);
 	void spinLightChanged(double v);

src/widgets/object_editor.ui

@@ -62,7 +62,7 @@
         <x>0</x>
         <y>-287</y>
         <width>444</width>
-        <height>1081</height>
+        <height>1100</height>
        </rect>
       </property>
       <layout class="QVBoxLayout" name="verticalLayout_3">
@@ -810,6 +810,13 @@
             </layout>
            </widget>
           </item>
+          <item row="7" column="0" colspan="2">
+           <widget class="MaterialMapEditor" name="mapLight" native="true">
+            <property name="styleSheet">
+             <string notr="true">font:normal;</string>
+            </property>
+           </widget>
+          </item>
          </layout>
         </widget>
        </item>
@@ -832,6 +839,19 @@
             </property>
            </widget>
           </item>
+          <item row="0" column="1">
+           <widget class="QDoubleSpinBox" name="spinCameraDepthStart">
+            <property name="decimals">
+             <number>5</number>
+            </property>
+            <property name="maximum">
+             <double>999999999.000000000000000</double>
+            </property>
+            <property name="value">
+             <double>0.100000000000000</double>
+            </property>
+           </widget>
+          </item>
           <item row="1" column="0">
            <widget class="QLabel" name="label_45">
             <property name="text">
@@ -864,34 +884,10 @@
             </property>
            </widget>
           </item>
-          <item row="3" column="1">
+          <item row="2" column="0">
-           <layout class="QHBoxLayout" name="horizontalLayout">
+           <widget class="QLabel" name="label_47">
-            <item>
+            <property name="text">
-             <widget class="QCheckBox" name="checkCameraMirrorY">
+             <string>Roll:</string>
-              <property name="text">
-               <string>Mirror Y</string>
-              </property>
-             </widget>
-            </item>
-            <item>
-             <widget class="QCheckBox" name="checkCameraMirrorX">
-              <property name="text">
-               <string>Mirror X</string>
-              </property>
-             </widget>
-            </item>
-           </layout>
-          </item>
-          <item row="0" column="1">
-           <widget class="QDoubleSpinBox" name="spinCameraDepthStart">
-            <property name="decimals">
-             <number>5</number>
-            </property>
-            <property name="maximum">
-             <double>999999999.000000000000000</double>
-            </property>
-            <property name="value">
-             <double>0.100000000000000</double>
             </property>
            </widget>
           </item>
@@ -920,12 +916,23 @@
             </property>
            </widget>
           </item>
-          <item row="2" column="0">
+          <item row="3" column="1">
-           <widget class="QLabel" name="label_47">
+           <layout class="QHBoxLayout" name="horizontalLayout">
-            <property name="text">
+            <item>
-             <string>Roll:</string>
+             <widget class="QCheckBox" name="checkCameraMirrorY">
-            </property>
+              <property name="text">
-           </widget>
+               <string>Mirror Y</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QCheckBox" name="checkCameraMirrorX">
+              <property name="text">
+               <string>Mirror X</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
           </item>
          </layout>
         </widget>
@@ -965,6 +972,15 @@
    <extends>QWidget</extends>
    <header>scroll_spin_box.h</header>
   </customwidget>
+  <customwidget>
+   <class>MaterialMapEditor</class>
+   <extends>QWidget</extends>
+   <header>material_map_editor.h</header>
+   <container>1</container>
+   <slots>
+    <signal>changed()</signal>
+   </slots>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections/>