Added shader files

modules/fieldlinessequence/shaders/streamnodes_fs.glsl

@@ -0,0 +1,56 @@
+/*****************************************************************************************
+ *                                                                                       *
+ * OpenSpace                                                                             *
+ *                                                                                       *
+ * Copyright (c) 2014-2020                                                               *
+ *                                                                                       *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
+ * software and associated documentation files (the "Software"), to deal in the Software *
+ * without restriction, including without limitation the rights to use, copy, modify,    *
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
+ * permit persons to whom the Software is furnished to do so, subject to the following   *
+ * conditions:                                                                           *
+ *                                                                                       *
+ * The above copyright notice and this permission notice shall be included in all copies *
+ * or substantial portions of the Software.                                              *
+ *                                                                                       *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
+ * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
+ ****************************************************************************************/
+
+#include "fragment.glsl"
+
+in vec4 vs_color;
+in float vs_depth;
+
+uniform bool usingAdditiveBlending;
+
+Fragment getFragment() {
+    if (vs_color.a == 0) {
+        discard;
+    }
+
+    vec4 fragColor = vs_color;
+
+    Fragment frag;
+    frag.depth = vs_depth;
+    frag.color = fragColor;
+
+    // G-Buffer
+    frag.gPosition  = vec4(0.0);//vs_gPosition;
+    // There is no normal here
+    // TODO: Add the correct normal if necessary (JCC)
+    frag.gNormal = vec4(0.0, 0.0, -1.0, 1.0);
+
+
+
+    if (usingAdditiveBlending) {
+        frag.blend = BLEND_MODE_ADDITIVE;
+    }
+
+    return frag;
+}

modules/fieldlinessequence/shaders/streamnodes_vs.glsl

@@ -0,0 +1,101 @@
+/*****************************************************************************************
+ *                                                                                       *
+ * OpenSpace                                                                             *
+ *                                                                                       *
+ * Copyright (c) 2014-2020                                                               *
+ *                                                                                       *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
+ * software and associated documentation files (the "Software"), to deal in the Software *
+ * without restriction, including without limitation the rights to use, copy, modify,    *
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
+ * permit persons to whom the Software is furnished to do so, subject to the following   *
+ * conditions:                                                                           *
+ *                                                                                       *
+ * The above copyright notice and this permission notice shall be included in all copies *
+ * or substantial portions of the Software.                                              *
+ *                                                                                       *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
+ * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
+ ****************************************************************************************/
+
+#version __CONTEXT__
+
+// General Uniforms that's always needed
+uniform vec4      lineColor;
+uniform mat4      modelViewProjection;
+
+// Uniforms needed to color by quantity
+uniform int       colorMethod;
+uniform sampler1D colorTable;
+uniform vec2      colorTableRange;
+
+// Uniforms needed for Particle Flow
+uniform vec4      flowColor;
+uniform int       particleSize;
+uniform int       particleSpeed;
+uniform int       particleSpacing;
+uniform double    time;
+uniform bool      usingParticles;
+
+// Masking Uniforms
+uniform bool      usingMasking;
+uniform vec2      maskingRange;
+
+// Domain Uniforms
+uniform bool      usingDomain;
+uniform vec2      domainLimX;
+uniform vec2      domainLimY;
+uniform vec2      domainLimZ;
+uniform vec2      domainLimR;
+
+// Streamnodes specific uniforms
+uniform int nodeSize;
+uniform vec4      streamColor;
+
+
+// Inputs
+// Should be provided in meters
+layout(location = 0) in vec3 in_position;
+// The extra value used to color lines. Location must correspond to _VA_COLOR in 
+// renderablefieldlinessequence.h
+layout(location = 1) in float in_color_scalar;
+// The extra value used to mask out parts of lines. Location must correspond to 
+// _VA_MASKING in renderablefieldlinessequence.h
+layout(location = 2) in float in_masking_scalar;
+
+// These should correspond to the enum 'ColorMethod' in renderablefieldlinesequence.cpp
+const int uniformColor     = 0;
+const int colorByQuantity  = 1;
+
+out vec4 vs_color;
+out float vs_depth;
+//out vec4 vs_gPosition;
+
+vec4 getTransferFunctionColor() {
+    // Remap the color scalar to a [0,1] range
+    float lookUpVal = (in_color_scalar - colorTableRange.x) /
+                            (colorTableRange.y - colorTableRange.x);
+    return texture(colorTable, lookUpVal);
+}
+
+bool isPartOfParticle(const double time, const int vertexId, const int particleSize,
+                      const int particleSpeed, const int particleSpacing) {
+    int modulusResult = int(double(particleSpeed) * time + vertexId) % particleSpacing;
+    return modulusResult > 0 && modulusResult <= particleSize;
+}
+
+void main() {
+
+    vs_color = vec4(0);
+
+    vec4 position_in_meters = vec4(in_position, 1);
+    vec4 positionClipSpace = modelViewProjection * position_in_meters;
+    //vs_gPosition = vec4(modelViewTransform * dvec4(in_point_position, 1));
+    gl_Position = vec4(positionClipSpace.xy, 0, positionClipSpace.w);
+
+    vs_depth = gl_Position.w;
+}