Merge branch 'model-lights'

6 files changed, 64 insertions, 43 deletions

diff --git a/gfx/gl/shaders/pointLight.fs b/gfx/gl/shaders/pointLight.fs
index ba327b6..7531d3e 100644
--- a/gfx/gl/shaders/pointLight.fs
+++ b/gfx/gl/shaders/pointLight.fs
@@ -6,9 +6,9 @@ out vec3 FragColor;
 layout(binding = 0) uniform isampler2D gPosition;
 layout(binding = 1) uniform sampler2D gNormal;
 uniform ivec4 viewPort;
-uniform vec3 colour;
-uniform float kq;
-in vec4 geo_centre;
+flat in vec4 geo_centre;
+flat in vec3 geo_colour;
+flat in float geo_kq;
 
 void
 main()
@@ -26,5 +26,5 @@ main()
 	if (normalDot < 0) {
 		discard;
 	}
-	FragColor = (colour * normalDot) / (1 + (kq * pow(lightDist / 1000.0, 2)));
+	FragColor = (geo_colour * normalDot) / (1 + (geo_kq * pow(lightDist / 1000.0, 2)));
 }
diff --git a/gfx/gl/shaders/pointLight.gs b/gfx/gl/shaders/pointLight.gs
index 9c41ed4..fc1d7c3 100644
--- a/gfx/gl/shaders/pointLight.gs
+++ b/gfx/gl/shaders/pointLight.gs
@@ -20,19 +20,24 @@ const vec3[] cube = vec3[]( // http://www.cs.umd.edu/gvil/papers/av_ts.pdf
 );
 uniform mat4 viewProjection;
 uniform ivec3 viewPoint;
-
-in vec3 centre[];
-in float size[];
+flat in vec3 position[];
+flat in vec3 colour[];
+flat in float size[];
+flat in float kq[];
 layout(points) in;
 
 layout(triangle_strip, max_vertices = cube.length()) out;
-out vec4 geo_centre;
+flat out vec4 geo_centre;
+flat out vec3 geo_colour;
+flat out float geo_kq;
 
 void
 doVertex(int idx)
 {
 	gl_Position = viewProjection * (gl_in[0].gl_Position + vec4(cube[idx] * size[0], 1));
-	geo_centre = vec4(centre[0], size[0]);
+	geo_centre = vec4(position[0], size[0]);
+	geo_colour = colour[0];
+	geo_kq = kq[0];
 	EmitVertex();
 }
 
diff --git a/gfx/gl/shaders/pointLight.vs b/gfx/gl/shaders/pointLight.vs
index 00a34a3..c538207 100644
--- a/gfx/gl/shaders/pointLight.vs
+++ b/gfx/gl/shaders/pointLight.vs
@@ -1,18 +1,24 @@
 #version 330 core
 
-layout(location = 0) in vec3 position;
+layout(location = 0) in vec3 v_position;
+layout(location = 1) in vec3 v_colour;
+layout(location = 2) in float v_kq;
+layout(location = 3) in mat4 model;
+layout(location = 7) in ivec3 modelPos;
 
-uniform vec3 colour;
-uniform float kq;
 uniform ivec3 viewPoint;
 
-out vec3 centre;
-out float size;
+flat out vec3 position;
+flat out vec3 colour;
+flat out float size;
+flat out float kq;
 
 void
 main()
 {
-	centre = position;
-	size = (8000 * sqrt(max(max(colour.r, colour.g), colour.b))) / sqrt(kq);
-	gl_Position = vec4(centre - viewPoint, 0);
+	position = modelPos + ivec3(mat3(model) * v_position);
+	kq = v_kq;
+	size = (8000 * sqrt(max(max(v_colour.r, v_colour.g), v_colour.b))) / sqrt(v_kq);
+	colour = v_colour;
+	gl_Position = vec4(position - viewPoint, 0);
 }
diff --git a/gfx/gl/shaders/spotLight.fs b/gfx/gl/shaders/spotLight.fs
index 937f922..ad33458 100644
--- a/gfx/gl/shaders/spotLight.fs
+++ b/gfx/gl/shaders/spotLight.fs
@@ -6,10 +6,10 @@ out vec3 FragColor;
 layout(binding = 0) uniform isampler2D gPosition;
 layout(binding = 1) uniform sampler2D gNormal;
 uniform ivec4 viewPort;
-uniform vec3 colour;
-uniform float kq;
-in vec4 geo_centre;
-in vec4 geo_direction;
+flat in vec4 geo_centre;
+flat in vec4 geo_direction;
+flat in vec3 geo_colour;
+flat in float geo_kq;
 
 void
 main()
@@ -30,5 +30,5 @@ main()
 	if (normalDot < 0) {
 		discard;
 	}
-	FragColor = (colour * normalDot) / (1 + (kq * pow(lightDist / 1000.0, 2)));
+	FragColor = (geo_colour * normalDot) / (1 + (geo_kq * pow(lightDist / 1000.0, 2)));
 }
diff --git a/gfx/gl/shaders/spotLight.gs b/gfx/gl/shaders/spotLight.gs
index b58c169..194812a 100644
--- a/gfx/gl/shaders/spotLight.gs
+++ b/gfx/gl/shaders/spotLight.gs
@@ -11,17 +11,19 @@ const vec3[] pyramid = vec3[]( // four-sided
 );
 uniform mat4 viewProjection;
 uniform ivec3 viewPoint;
-uniform float arc;
-
-in vec3 position[];
-in vec3 direction[];
-in float size[];
-in float cosarc[];
+flat in ivec3 position[];
+flat in vec3 direction[];
+flat in vec3 colour[];
+flat in float size[];
+flat in float kq[];
+flat in vec2 arc[];
 layout(points) in;
 
 layout(triangle_strip, max_vertices = 8) out;
-out vec4 geo_centre;
-out vec4 geo_direction;
+flat out vec4 geo_centre;
+flat out vec4 geo_direction;
+flat out vec3 geo_colour;
+flat out float geo_kq;
 
 vec3
 perp(vec3 a)
@@ -36,14 +38,16 @@ doVertex(vec4 ndcpos)
 {
 	gl_Position = ndcpos;
 	geo_centre = vec4(position[0], size[0]);
-	geo_direction = vec4(direction[0], cosarc[0]);
+	geo_direction = vec4(direction[0], arc[0].x);
+	geo_colour = colour[0];
+	geo_kq = kq[0];
 	EmitVertex();
 }
 
 void
 main()
 {
-	const float base = size[0] * tan(arc / 2);
+	const float base = size[0] * arc[0].y;
 	const vec3 offx = perp(direction[0]);
 	const vec3 offy = cross(direction[0], offx);
 	vec4 out_py[pyramid.length()];
diff --git a/gfx/gl/shaders/spotLight.vs b/gfx/gl/shaders/spotLight.vs
index ac1d1db..eed8778 100644
--- a/gfx/gl/shaders/spotLight.vs
+++ b/gfx/gl/shaders/spotLight.vs
@@ -1,24 +1,30 @@
 #version 330 core
 
 layout(location = 0) in vec3 v_position;
+layout(location = 1) in vec3 v_direction;
+layout(location = 2) in vec3 v_colour;
+layout(location = 3) in float v_kq;
+layout(location = 4) in float v_arc;
+layout(location = 5) in mat4 model;
+layout(location = 9) in ivec3 modelPos;
 
-uniform vec3 v_direction;
-uniform vec3 colour;
-uniform float kq;
-uniform float arc;
 uniform ivec3 viewPoint;
 
-out vec3 position;
-out vec3 direction;
-out float size;
-out float cosarc;
+flat out ivec3 position;
+flat out vec3 direction;
+flat out float size;
+flat out vec2 arc; // cos,tan (v_arc/2)
+flat out vec3 colour;
+flat out float kq;
 
 void
 main()
 {
-	position = v_position;
-	direction = normalize(v_direction);
+	position = modelPos + ivec3(mat3(model) * v_position);
+	direction = normalize(mat3(model) * v_direction);
+	colour = v_colour;
+	kq = v_kq;
 	size = (8000 * sqrt(max(max(colour.r, colour.g), colour.b))) / sqrt(kq);
-	cosarc = cos(arc / 2);
+	arc = vec2(cos(v_arc / 2), tan(v_arc / 2));
 	gl_Position = vec4(position - viewPoint, 0);
 }